Service Manuals, User Guides, Schematic Diagrams or docs for : Daewoo Plasma SP-210P chassis sp210p_676

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sp210p_676


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                                       S/M NO. : DSP210PEF0


Service Manual
42" PLASMA PDP TV

CHASSIS : SP-210P
Model :      DPP-4242NHS




   Caution
   : In this Manual, some parts can be changed for improving. their
     performance without notice in the parts list. So, if you need the
     latest parts information, please refer to PPL(Parts Price List)in
     Service Information Center.




                                                        APR. 2005
                                          Contents
I. Parts with the exception of MODULE
1. Safety Precautions                                                         2
2. Product Specification                                                      3
   2-1. SPECIFICATION                                                         3
   2-2. Available Input Signal                                                5
   2-3. Remote Control Setup Code                                             6
3. BLOCK DIAGRAM                                                             14
4. Description Of A/V and power                                              15
   4-1. Block Diagram of main IC and TP                                      15
   4-2. Overview                                                             16
   4-3. POWER PCB                                                            24
   4-4. Interface with PDP module                                            26
5. SERVICE MODE                                                              27
   5-1. Checking initial menu data                                           27
   5-2. Entering SERVICE MODE                                                28
   5-3. Description Of SERVICE MODE Items                                    30
6. Adjusting Method                                                          33
   6-1. Adjusting WHITE BALANCE                                              33
   6-2. Adjusting POWER PCB                                                  34
7. SOFTWARE UPGRADE Method                                                   36
8. Main PCB Trouble Diagnosis                                                39
   8-1. MAIN & SUB PCB Trouble Diagnosis                                     39
   8-2. POWER PCB Trouble Diagnosis                                          46
9. TROUBLE DIAGNOSIS                                                         47
   9-1. Facts You Must Know When Diagnosing And Repairing                    47
   9-2. Typical Symptoms of PCB problem or bad Connection                    47
   9-3. Trouble Diagnosis and Repairing Method for Representative Symptoms   48
10. ASSEMBLY LIST                                                            53
11. STRUCTURE OF PDP SET                                                     54
12. EXPLODED VIEW                                                            59


 II. Parts of MODULE
1. Confirmation Manual
2. Repair Manual




                                               -1-
I. Parts with the exception of MODULE
1. Safety Precautions

1. Safety Precautions

(1) When moving or laying down a PDP Set, at least two people must work together. Avoid
    any impact towards the PDP Set.

(2) Do not leave a broken PDP Set on for a long time. To prevent any further damages, after
    checking the condition of the broken Set, make sure to turn the power (AC) off.

(3) When opening the BACK COVER, you must turn off power (AC) to prevent any electric
    shock. When PDP is operating, high voltage and high current inside the Set can cause
    electric shocks.

(4) When loosening screws, check the position and type of the screw. Sort out the screws and
    store them separately for reassembling. Because screws holding PCBs are working as
    electric circuit GROUNDING, make sure to check if any screw is missing when
    assembling/reassembling. Do not leave any screws inside the set.
(5) If you open the BACK COVER, you will see a
   Panel Gas Exhaust Tube (Picture. 1-1) inside
   the bracket. If this part is damaged, the entire
   PDP PANEL must be replaced. Therefore,
   when working with the set, be careful not to
   damage this part.


Picture 1-1. Panel Gas Exhaust Tube


(6) A PDP Set contains different kinds of


   connector cables. When connecting or disconnecting cables, check the direction and
   position of the cable beforehand.


(7) Connect/disconnect the connectors slowly with care especially FFC (film) cables and FPC
    cables. Do not connect or disconnect connectors instantaneously with force, and handle
    them carefully for reassembling.


(8) Connectors are designed so that if the number of pins or the direction does not match,
    connectors will not fit. When having problem in plugging the connectors, check their kind,
    position, and direction.




                                                -2-
2. Product Specification

2-1. SPECIFICATION
   ITEM                      SPECIFICATION                                       REMARK
1. GENERAL
   1-1. MODEL NO             DPP-4242NHS
   1-2. CHASSIS NO           SP-210P
   1-3. SCREEN SIZE          42" (16:9)
   1-4. COUNTRY              Europe
  1-5. RESOLUTION            853(H) x 480(V)
  1-6. REMOCON TYPE          R-53G12
  1-7. SAFETY STANDARD       CE(CLASS B), CB
  1-8 .TUNIG METHOD          FS
  1-9. MEMORY CHANNEL        99CH
2. MECHANICAL
  2-1. APPEARANCE
      1) WITHOUT STAND       W x H x D =1044 x 631 x 89 mm
      2) WITH STAND          W x H x D =1044 x 705.9 x 310 mm
  2-2. WEIGHT
      1) WITHOUT STAND       30.2 Kg
      2) WITH STAND          60 Kg
3. ELECTRICAL
   3-1. VIDEO INPUT          COMPOSITE(NTSC, PAL, SECAM, PAL-M/N, NTSC4.43) &
                             S-VHS(50/60Hz Y/C) 1 set
  3-2. DTV/DVD INPUT         1080 i, 720P, 480P , 480i, 576P, 576i
                             (Y, Pb/Cb, Pr/Cr COMPONENT SIGNAL) 2sets
  3-3. SCART INPUT           SCART(COMPOSITE, R,G,B, SOUND) R/L 2sets
  3-4. PC INPUT              VGA ~ SXGA(Dot clock : 120MHz), 15 PIN D-SUB 1set
  3-5. DVI INPUT             DVI-D INPUT (DVI Jack) 1set
  3-6. TV INPUT
      1) COLOR STANDARD      PAL B/G+I/I+D/K, L-SECAM, L'--SECAM
      2) ANTENNA IN          ONE INPUT 75 Unbalanced (DIN Standard)
      3) RECEPTION CHANNEL
                             VHF LOW : E2 ~ S6 Ch.
                             VHF HIGH : S7 ~ S36 Ch.
                             UHF        : S37 ~ E69 Ch.
                             L'-SECOM : FB, FC1, FC
     4) IF & SUBCARRIER      PIF : 38.90MHz (PAL B/G+I/I+D/K, L-SECAM
                             33.9 MHz (L'-SECAM)
                             SIF : 33.40MHz (B/G), 32.90MHz (I/I),
                             32.4MHz (D/K, L-SECAM), 40.4MHz (L'--SECAM)
  3-7. SOUND INPUT           VIDEO 1set, DTV/DVD 2set, PC 1set, DVI 1set
  3-8. SPEAKER OUTPUT        10W(R) + 10W(L)
  3-9. POWER REQUIREMENT     AC 100V~240V, 50/60Hz
  ITEM                       SPECIFICATION                                        REMARK
  3-10. POWER CONSUMPTION    260W(Typical)
  3-11. RS-232 CONTROL       RS-232 Communication (FOR SERVICE UPGRADE)
  3-12. AV OUTPUT            SCART(CVBS, SOUND R/L) 2 sets
  3-11. AV OUTPUT            CVBS 1 set, SOUND R/L 1 set
                                          -3-
Product Specification


  3-13. FUNCTION
     1) SCALING                DVI : H/V SIZE
                               PC: H/V SIZE, POSITION, PHASE, FREQUENCY
                               VIDEO/DVD(480i/576i) : 16:9, 4:3, AUTO, EnlargeLB,
                               EnlargeLBS, PANORAMA
                               DTV/DVD(480P and Better Reolusion) : 16:9, 4:3
     2) ZOOM                   20 STEP ZOOM and PANING
     3) OSD Language           18 Languages (English, Greek, Dutch, German, Russian, Rumanian,
                               Swedish, Danish, Finnish, Norwegian, Spanish, Italian, French,
                               Polish, Portuguese, Czech, Hungarian , Slovakian)
     4) OTHERS                 STILL, SLEEP MODE, SOUND MODE, PICTURE MODE
                               TIMER, TELETEXT (LEVEL 2.5)
     5) PIP/POP                Make reference to PIP SPECIFICATION (2Tuner PIP,
                               Possible PIP inputs) Shown in the next page.
        6) SOUND               BBE Technology
4. OPTICAL
    4-1. SCREEN SIZE           42"(106 cm) DIAGONAL
    4-2. ASPECT RATIO          16 : 9
    4-3. NUMBER OF PIXELS      853(H)X480(V)
    4-4. DISPLAY COLOR         1,677 Million Colors ( 8bits for each RGB)
    4-5. CELL PITCH            1.08(H) x 1.08(V)mm (1 Pixel = a Set of RGB Cells )
    4-6. PEAK LUMINANCE        400cd/m2(WITH FILTER GLASS)
    4-7. CONTRAST RATIO        1500:1 (Dark Room)
    4-8. VIEWING ANGLE         160 degree(VERTICAL/HORIZONTAL)
5. USERCONTROL & ACCESSORIES
    5-1 CONTROL BUTTON(SET)    PUSH-PULL S/W : AC POWER BUTTON
                               SOFT S/W: MOVE/CH(UP, DOWN), VOLUME(LEFT, RIGHT),
                               MENU, INPUT SELECT
  5-2. REMOTE CONTROL
          (R-53G12)            Power, Universal Selection (TV, VIDEO/DVD, CABLE, SAT),
                               10 KEYS(0~10), Recall, VCR /DVD KEY
                               (RR, Play, FR, Stop, Freeze, OPEN/CLOSE, PREV, NEXT ),
                               Menu, TV/VIDEO, MULTIMEDIA, Still, Previous Channel,
                               Sound Off, Channel(UP/DOWN), Volume(UP/DOWN),
                               Screen Mode/MIX, Screen Size, Zoom-, Zoom+, Sleep Timer,
                               Multilingual/CYAN, Sound Mode/INDEX,. RED, GREEN, YELLOW,
                               TEXT, REVEAL, UPDATE, EXPAND, SUBPAGE, HOLD, PIP,
                               SWAP, PR+, PR-, POSITION, SOURCE
  5-3. ACCESSORIES             REMOCON, BATTERY, USERS MANUAL,
                               POWER CORD, FILTER EMI
  5-4. OPTIONAL PARTS          STAND, WALL HANGER, SPEAKER UNITS(Left, Right)




                                              -4-
Product Specification


2-2. Available Input Signal
 (1) PC & DVI

 Resolution       H Freq. (KHz)   V Freq. (Hz)    Remark   DVI   PC
  640x400            37.861         85.080         VESA          O
  640x480            31.469         59.940         DOS     O     O
                     37.861         72.809         VESA    O     O
                     37.500         75.000         VESA    O     O
                     43.269         85.061         VESA    O     O
  720x400            31.469         70.087          IBM    O     O
                     37.927         85.039         VESA          O
  800x600            35.156         56.250         VESA    O     O
                     37.879         60.317         VESA    O     O
                     48.077         72.188         VESA    O     O
                     46.875         75.000         VESA    O     O
                     53.674         85.061         VESA    O     O
 1024x768            48.363         60.004         VESA    O     O
                     56.476         70.069       HP&VESA   O     O
                     60.023         75.029         VESA    O     O
                     68.677         84.997         VESA          O
 1152x864            67.500         75.000         VESA    O     O
 1280x960            60.000         60.000         VESA    O     O

(2) DTV
-1080i/ 60 Hz
-720P / 60 Hz
-480P / 60 Hz

(3) VIDEO
-PAL, PAL-M, PAL-N
-NTSC , NTSC4.43
- SECAM




                                      -5-
Product Specification


2-3. Remote Control Setup Code

[BRAND LIST : R-53DP4]
1. VCR/DVD                                                     LAST UPDATE : 2004.05.19
 1) VCR (STANDARD : 002)
Maker (Brand) Name     Code Number (3 digit) List
AIWA                   038 043 054 072 111 115      120
AKAI                   027 034 043 069 089 091      102 123
AKURA                  028 111
ALBA                   028 060 072 113 118 119      120
AMSTRAD                038
ANITSCH                029
ARC EN CIEL            043 044 089
ARISTONA               048 090 108
ASA                    053 054
BAIRD                  043 102
BASIC LINE             028 060 072
BLAUPUNKT              026 085 090 097 106 108
BRANDT ELECTRONIQUE    043 044 089
BUSH                   027 028 060 072 118 119      120
CAPEHART               060
CGE                    038 043 089
CONTINENTAL EDISON     043 044 089
CRAIG                  001 041
CURTISMATHES           059 061
DAEWOO                 002 008 060 062 063 067      068
DAYTRON                060
DECCA                  038 043
DEGRAAF                014 017 038 048 053
DUAL                   043 089
DUMONT                 014 038 053
DYNATECH               038
ELBE                   035
EMERSON                010 031 038 059 061 072
FERGUSON               004 043 082 084 089 093      099 103 107 121 126
FIDELITY               038
FINLADIA               014 053
FINLUX                 014 017 038 053
FISHER                 001 014 018 033
FUNAI                  038


                                           -6-
Product Specification




Maker (Brand) Name      Code Number (3 digit) List
GBC                     092
GE                      059 061
GELOSO                  092
GOLDSTAR                054
GOODMANS                028 038 041 049 053 054      060 072
GRAETZ                  043 044 083 089 105
GRANADA                 014 018 053 108 124
GRUNDIG                 053 085 090 096 097 098      108
HIFIVOX                 043 044 089
HINARI                  010 028 071 072 077 092      111 116 120
HITACHI                 017 024 038 043 073 086
IMPERIAL                038 095
INGELEN                 043 044 089 105
INGERSOL                077
INNO HIT                092
ITT                     018 043 083 102
ITT-NOKIA               043 044 089 105
JENSEN                  043
JVC                     003 006 009 043 044 046      084 089 111 114 124
KENWOOD                 018 043 046 111
KRIESLER                048 090 108
LLOYD                   038
LOEWE                   064
LOEWE OPTA              053 081 090 108
LOGIK                   028 041 072 077 102
LUXOR                   102 105
LXI                     054
MAGNASONIC              105
MAGNAVOX                059 061
MARANTZ                 049 053 072 090 108 110
MATSUI                  010 031 041 054 072 077      113 117 120
MEMOREX                 001 014 018 038 048 054
METZ                    090 097 104 108
MGA                     052
MINERVA                 085 097 108
MINOLTA                 017 024



                                           -7-
Product Specification




Maker (Brand) Name      Code Number (3 digit) List
MITSUBISHI              046 052 075 122
MTC                     038 041
MULTITECH               020 028 038
MURPHY                  038
NAONIS                  043 044 089
NATIONAL                106
NEC                     035 043 046 089
NECKERMANN              010 043 089 108
NOBLIKO                 108
NOGAMATIC               043 044 089
NOKIA                   014 018 043 044 083 089      102 105
NORDMENDE               003 006 009 013 015 019      021 022 036 043 044 089 094 096 100
                        101
OPTONICA                048 049
ORION                   010 030 031 032 058 072      077
OSAKI                   038 054
PANASONIC               016 070 087 088 106
PATHE' MARCONI          043 044 089
PENTAX                  017 024
PERDIO                  038
PHILIPS                 005 040 042 045 048 049      053 064 078 081 090 108
PHONOLA                 048 053 081 090 108
PIONEER                 046 053 112
PORTLAND                060
PROLINE                 038
PYE                     048 053 081 090 108
QUARTZ                  018
QUELLE                  010 047 097 108
RADIOLA                 048 090 108
RCA                     059 061
REALISTIC               001 014 018 038 041 048      049
REX                     003 043 044 089
ROADSTAR                028 041 054
SABA                    003 006 011 012 013 015      021 022 043 044 089 101
SAISHO                  010 031 072 077 086 113
SALORA                  018 052 124



                                           -8-
Product Specification




Maker (Brand) Name      Code Number (3 digit) List
SAMSUNG                 041 055 056 059 061 065      066 091 095
SANSUI                  043 046
SANYO                   001 014 018 039 072 105      125
SBR                     053 078 081
SCHAUB LORENZ           043 044 083 089 105
SCHNEIDER               028 038 048 090 095 108
SEG                     095
SEI-SINUDYNE            077
SELECO                  043 044 089
SENTRA                  060
SHARP                   048 049 057 074
SHINTOM                 028
SIEMENS                 085 090 097 105 108
SIERA                   048 090 108
SINUDYNE                077
SONY                    047 050 051 076 080
STERN                   043 044 089
STS                     017
SUNKAI                  072
SYLVANIA                038 052
SYMPHONIC               038 052
TASHIKO                 038
TATUNG                  038 043
TEAC                    038 043
TEKNIKA                 038
TELEAVIA                043 044 089
TELEFUNKEN              006 015 023 025 037 043      044 089
TENOSAL                 028
THOMSON                 015 019 043 044 089
THORN                   043 084 089 109
THORN-FERGUSON          021 022 043 082 084 089      093 099 103 107
TOSHIBA                 008 043 044 052 079 089
TOTEVISION              041
UHER                    043 095
UNITECH                 041
VICTOR                  043 046



                                           -9-
Product Specification




Maker (Brand) Name      Code Number (3 digit) List
WARDS                   059 061
YAMAHA                  043
ZANUSSI                 043 044 089
ZENDER                  089
ZOPPAS                  043 044
 2) DVD
Maker (Brand) Name      Code Number (3 digit) List
ANAM                    158 159
AKAI                    154
DAEWOO                  152 160
DENON                   157 161
HYUNPAZ                 162
KENWOOD                 156
LG                      150 168 169
MAGNAVOX                155
ONKYO                   165 166 167
PANASONIC               157 170
PHILIPS                 155
PIONCER                 153
SAMSUNG                 151 163 164
THOMSON                 171
TOSHIBA                 155
YAMAHA                  157
WILL CAN                172




                                            -10-
Product Specification




2. SAT (STANDARD : 002)
Maker (Brand) Name      Code Number (3 digit) List
AKAI                    032
ALBA                    016 023 055 069 111 115      117 120
AMSTRAD                 070 096
ANKARO                  050
ARCON                   078
ARISTONA                052
ARTHUR MARTIN           094
ASTRA                   067 097
BARCOM                  050
BLAUPUNKT               037
BT SATELLITE            119
BUSH                    023 047 052 055 069 076      106
CAMBRIDGE               059
CAMBRIDGE ARD200        103
CHAPARRAL               011
CONNEXIONS              038 041 095
DAEWOO                  002
DISKXPRESS              038 050
DRAKE                   001 039 043 060 077
ECHOSTAR                015 020 046 049 064 065      071 085
ELTASAT                 058
FERGUSON                044 047 051 052 062 063      066 076 106 108 111
FINLUX                  008 009
FRACARRO                054 086
FTE                     079
FUBA                    013
GIUCAR RECORD           006 088
GOLDSTAR                078 107
GOODMANS                111
GRAETZ                  087 098
GRANADA                 098
GRUNDIG                 037 052 066 089 122
HIGH PERFORMANCE        084
HIRSCHMANN              008 037
HITACHI                 106 111
INGELEN                 087 098
ITT                     068
ITT-NOKIA               020 066 087 098




                                           -11-
Product Specification




Maker (Brand) Name      Code Number (3 digit) List
JEEMON                  058
JERROLD                 044
JOHANSSON               093
KATHREIN                032 079 080 089 090 095 099 110 112 114 118 120
KRIESLER                052
LENCO                   078
LUXOR                   042 087 094 098
MACAB                   083
MAGAI                   079
MANHATTAN               058 106 111 116
MARANTZ                 032
MASPRO                  048 052 092 095 106 108 113 121
MATSUI                  019 109 119
METZ                    089
MINERVA                 089
MULTISTAR               079
NEC                     029 035 072
NEIRU                   078
NOKIA                   087 098 105
NORSAT                  045
PACE                    010 052 063 066
PACE MSS SERIES         066
PALCOM                  091
PALSAT                  024
PANASONIC               030
PHILIPS                 018 031 032
PHONOLA                 052
PROSAT                  055
PYE                     052
QUELLE                  089
RADIOLA                 052
RADIX                   046
RC-1000                 103 104
REDIFFUSION             035 045
SAKURA                  053 056
SALORA                  033 067 087 094 098
SAMSUNG                 079
SATECO                  016
SATPORTNER              078
SCHAUB LORENZ           087 098


                                         -12-
Product Specification




Maker (Brand) Name    Code Number (3 digit) List
SCHNEIDER             052
SENTRA                036
SIEMENS               037 089
SIERA                 052
SILVA                 078
SINTRACK              012
STARSAT               079
STELLA                040
STRONG                024 061
STV                   013
TANDBERG              007
TANDY                 084
TATUNG                034 073
TECHNISAT             004 005 027 083 101 102
TELECOM               040 123 124
TELEFUNKEN            082
TELEMAX               017
THORN-FERGUSON        022 044 047 051 052 062 063 066
TRIACL                083
TRIAD                 084 100
UNIDEN                057 074 075 079
VIDIO WAY             014
VORTEC                081 082
WINERSAT              093
WISI                  003 021 025 026 046
WOLSEY                084
ZEHNDER               079
ZENITH                043
3. CATV (STANDARD : 002)
Maker (Brand) Name    Code Number (3 digit) List
CABLETIME             201 206 207
FILMNET CABLECRYPT 202
JERROLD               203 204
MATSUSHITA            202
SCIENTIFIC ATLANTA    205
SKYLIFE               002
STARCOM               203
UNITED CABLE          203
VISIOPASS             209
WESTMINSTER CABLE 208

                                       -13-
                                                                           DPP-4242NAS BLOCK DIAGRAM




                                                                                                CN806
                                                                                                                                                                                                             CN302
                                                                                                                                 POWER PCB
                                                                                                                                                                                                                                                                              3. BLOCK DIAGRAM




                                                                                                                                                                                                             CN301
                                                                                                                                                                                                                                               CN305




                                                                                                CN805
                                              X-Y CONN




                      CN4
                                                                                                                                CN803                   CN801
                                                                                                                                                                                                                                                         CN03




                                                                                                                                                                                                             CN100
                                                                                                                                                                                                                       SUS PCB
                                                                                                                                                                                                                                                                Y DRV UPPER




                                                                                                                                                                                                                                               CN306




-14-
       SCANL_B
                                                                                                                                                                                                             CN200
                                              CN101                                                     P100                    PC103         PC101
                                                                                                                                                                                                             CN315




                                                                       CN601
                                                                                                PC102
                                                                                                                                                      JP117
                                                                                                                                                                JA109
                                             DIGITAL PCB                                                                 MAIN PCB
                                                                                                                                                                                   PC900




                                                                       CN402
                                                                                                                                                      JP118
                                                                                                                                                                JA110
                                                                                                                                                                                                                                LED PCB
                                                                                                                                                                                                                                                         CN06




                                                                                                                                                                              SUB PCB
                                         CN701              CN401                                                                                                                                                            AC SWITCH
                                                                                                                                                                                                                                                                Y DRV LOWER




                                             CN8              CN6                                                                CN7                                    CN8          CN6              CN7


            KEY PCB                                               DATA DRIVER PCB                                                                                                                DATA DRIVER PCB
                                CN1                       CN2                      CN3                      CN4                  CN5                                    CN1                CN2            CN3              CN4              CN5




                            DATA DRIVER IC            DATA DRIVER IC           DATA DRIVER IC           DATA DRIVER IC       DATA DRIVER IC                       DATA DRIVER IC     DATA DRIVER IC   DATA DRIVER IC   DATA DRIVER IC   DATA DRIVER IC


                            DATA COF               DATA COF              DATA COF                       DATA COF            DATA COF                            DATA COF             DATA COF         DATA COF         DATA COF         DATA COF
4. Description of A/V(MAIN and SUB PCB) and POWER

4-1. Block Diagram of main IC and TP




        PA102                                  TP116                   PC102




                                                                                               P100
                                               TP117
                KEY
                               IC112                                                                     TO PDP
                                                                           TP204         TP205
                                                         TP130                                           MODULE
                                           TP128
                                                                                   IC149
                                                                                             TP187
                                           IC114                                             TP184
                                                                                             TP181
                                                                                             TP188




                                       IC158                            IC140




                                  IC102                                         IC134

                                         TP261
                                                         IC121
                                                                                IC126
                                                       TP136
                                                               TP135
                                                               TP134




                                                                               IC156
                                                                                           PC103          TO PWR



                                                 TP143             IC132
                                IC104
                                                                                            PC101
                                                 TP145            JP118         JP117



                                                                                                      PC102
                                                                  JA110          JA109
                                 PC901                                                                         LED
                                 TUNER
                                                                                           TP_AUDIO

                              IC903                                                      IC904

                              IC901                             PC900




                                                               TO PWR                                 Top
                                                                                                      Bottom




                                                                -15-
Description of A/V(MAIN and SUB PCB) and POWER
4-2. Overview
       A/V block (Main and Sub PCB) is Multi Media circuit board that can process various input signals such as video, component, PC, DVI,
       and analog TV signal. It is mainly composed of switching, sync processing, decoding, analog TV, digital image processing, and system
       control part

      4-2-1. Composite video, Y/C(S-Video) and SCART (CVBS, RGB) composite video
              Y/C(S-Video) and SCART(CVBS) have similar signal paths. For the Main signal, IC102 receives these inputted signals and
              swiches out a selected signal. Then the signal goes into IC132 for video processing, SCART(RGB) signal goes directly into
              IC132. The output of IC132 goes through IC134 and IC140 for deinterlacing and digital image processing respectively.
             However, at PIP mode, sub signal has a little bit different path from the Main signal. First of all, IC102 receives input signals
             such as composite video, Y/C or etc, and swiches out the selected signal like as the Main signal. But the selected signal goes into
             IC158 for video processing instead of going into IC132. Then it goes into IC140 for image processing.
   - Main
      A. IC102: Switching IC (Input: analog inputs Output: an analog output)
      B. IC126: Teletext IC
      C. IC132: Video processor (Input: Y/C, CVBS Output: 16bit digital, HV)
      D. IC134: Deinterlacer (Input: 16bit digital, HV Output: 24bit digital RGB, HV)
      E. IC140: Image Processor (Input: 24bit digital RGB, HV Output: 24bit digital RGB, HV)
   - Main TP (Input: Color Bar Pattern)
   - Sub
      A. IC102: Switching IC (Input: analog inputs, Output: an analog output)
      B. IC158: Video Processor (Input: Y/C, CVBS, Output: 24bit digital RGB, HV)
      C. IC140: Image Processor (Input: 24bit digital RGB, HV, Output: 24bit digital RGB, HV)

                                            TP145: Brightness signal (input to IC132)




                                                TP143: Color signal (input to IC132)




                                                                     -16-
Description of A/V(MAIN and SUB PCB) and POWER


                      TP181: Data enable (output of IC140)




                       TP184: Horizontal sync (output of IC140)




                       TP187: Vertical sync (output of IC140)




                                       -17-
Description of A/V(MAIN and SUB PCB) and POWER


                                TP188: Clock for display (output of IC140)




   4-2-2. TV signal
   Tuner(PC901) receives antenna signal and outputs CVBS and sound signal. For the Main signal, IC102 switches out the
   CVBS and the rest of the signal flow is same as composite video signal flow mentioned earlier.
   Also, Sub TV signal at PIP mode flows similar path to the Sub composite video signal pass except that IC102 swiches
   out the CVBS signal.
   - Main
     A. PC901: Tuner (Input: antenna signal Output: CVBS)
     B. IC102: Switching IC (Input: CVBS Output: CVBS)
     C. IC126: Teletext IC
     D. IC132: Video processor (Input: Y/C Output: 16bit digital, HV)
     E. IC134: Deinterlacer (Input: 16bit digital, HV Output: 24bit digital RGB, HV)
     F. IC140: Image Processor (Input: 24bit digital RGB, HV Output: 24bit digital RGB, HV)
   - Sub
      A. PC902: Tuner (Input: antenna signal, Output: CVBS)
      B. IC102: Switching IC (Input: CVBS, Output: CVBS)
      C. IC158: Video Processor (Input: Y/C, Output: 16bit digital, HV)
      D. IC140: Image Processor (Input: 24bit digital RGB, HV, Output: 24bit digital RGB, HV)
   - Main TP (Input: Color Bar Pattern)
       TP143, 145
       TP181, 184, 187, 188
   4-2-3. DTV/DVD signal
     Both DTV(Y, Pb, Pr) and DVD(Y, Cb, Cr) share same jack and signal path. For the Main, IC102 switches
     out signal and also detects type of signal so that IC121 can convert the analog signal to digital. Then the
     signal goes through IC134(deinterlacer) and IC140 for digital image processing. On the other hand, Sub
     DTV/DVD signal is swithed out in IC102 and goes into IC114 for A/D conversion, Then it goes into
     IC140 for the image processing.
   - Main
     A. IC102: Switching IC (Input: Component Output: Component, HV)
     B. IC121: A/D converter (Input: Component, HV Output: 24bit digital RGB, HV)
     C. IC134: Deinterlacer (Input: 24bit digital RGB, HV Output: 24bit digital RGB, HV)
     D. IC140: Image Processor (Input: 24bit digital RGB, HV Output: 24bit digital RGB, HV)
   - Sub
      A. IC102: Switching IC (Input: Component, Output: Component, HV)
      B. IC114: A/D converter (Input: Component, HV, Output: 24bit digital RGB, HV)
      C. IC140: Image Processor (Input: 24bit digital RGB, HV, Output: 24bit digital RGB, HV)

                                                       -18-
Description of A/V(MAIN and SUB PCB) and POWER


- Main TP (Input: 480P, Color Bar Pattern)
                                    TP261: Y signal (Input to IC121)




                                     TP134: Clock (output to IC121)




                                TP135: Horizontal sync (output of IC121)




                                                -19-
Description of A/V(MAIN and SUB PCB) and POWER


                                  TP136: Vertical sync (output of IC121)




4-2-4. PC (Personal Computer)signal
   PC signal is switched out by IC109 and input to IC114 for A/D conversion. Then the signal goes
   through IC140 for digital image processing.

- Main IC
   A. IC109: Switching IC (Input: Analog RGB, H, V Output: Analog RGB, H, V)
   B. IC114: A/D converter (Input: Analog RGB, H, V Output: 24bit digital RGB, H, V)
   C. IC140: Image Processor (Input: 24bit digital RGB, H, V Output: 24bit digital RGB, H, V)

- Main TP (Input: Color Bar Pattern)
                                   TP130: Vertical sync (output of IC114)




                                                  -20-
Description of A/V(MAIN and SUB PCB) and POWER


                               TP128: SYNC for PLL (output of IC114)




                                TP127: Output clock (output of IC114)




4-2-5. DVI(Digital Visual Interface) signal
   To process DVI signal, graphic card of AV device reads EDID data from IC101(ROM). Then DVI
   signal is directly inputted to IC112, which outputs digital 24bit RGB and H, V. The output goes
   through IC140 for digital image processing.

- Main IC
   A. IC101: ROM containing EDID data (EDID: display capabilities such as resolution, aspect ratio
      etc.)
   B. IC112: DVI signal processor (Input: TMDS Output: 24bit digital RGB, H, V)




                                               -21-
Description of A/V(MAIN and SUB PCB) and POWER


- Main TP (Input: Color Bar Pattern)
                                 TP116: Horizontal sync (output of IC112)




                                  TP117: Vertical sync (output of IC112)




4-2-6. Video Enhancer and LVDS transmitter (for all inputs)
   Outputs of IC140 are inputted to IC149(video signal enhancer) which improves picture quality greatly.
   Outputs of IC149 are inputted to IC150 which is a LVDS transmitter. The converted LVDS signal is
   transmitted to the digital board.

- Main IC
   A. IC149: Video enhancer (Input: 24bit digital RGB, H, V Output: 24bit digital RGB, H, V)
   B. IC150: LVDS transmitter (Input: 24bit digital RGB, H, V Output: LVDS signal)

- Main TP (Input: Color Bar Pattern)
   TP204: Horizontal sync (output of IC149), refer to TP184
   TP205: Vertical sync (output of IC149), refer to TP187




                                                  -22-
Description of A/V(MAIN and SUB PCB) and POWER


4-2-7. Audio signal processing, KEY, and LED
   IC104 switches Audio signals and passes a switched signal to IC904 for audio signal processing.
   IC904 controls sound parameters such as Volume, Balance, and Equalize. The outputs of IC904 are
   passed to IC901(left), and IC903(right) respectively to amplify the signals. KEY and LED PCBs send
   signals received from key buttons and LED to IC140 for command processing.

- Main IC
   A. IC104
   B. IC904
   C. IC901, IC903

- Main TP (Input: Sound wave 400Hz)
          TP_AUDIO: AUDIO SIGNAL that goes into MSP3420 before AUDIO PROCESSING




                      RIGHT (LEFT) : AMP input signal before 30dB amplification




                                                -23-
Description of A/V(MAIN and SUB PCB) and POWER


                                   Remote control signal




4-3. POWER PCB
 
   Rating: AC100V ~ AC240V (Variable Range- AC85V~ AC276V)
   Regulation Method: Transistor & Switching Method
   Input Frequency: 50~60Hz (Variable Range- 45Hz ~ 66Hz)
   Inrush Current: Below 30A at AC264V
   Output Voltage is shown below.

  No.      Output      Voltage     Variable       Voltage    Current    Ripple/Noise
                       Rating       Range        Accuracy    Rating      (mVp-p)*2
                        (V)          (V)          (%)*1        (A)
   1         Vs         175        160-190           5V      0.4~1.5      500/500
                                                    *3
   2          Va          60        50-65            2V      0.01~2.5     300/300
   3        5Vcntl       5.1      4.75~5.25          5%        1.2~4       30/200
   4          5V         5.1      4.75~5.25          5%       0.5~4.5      50/200
   5          V3          17          -              7%        0~0.7      100/400
          (SOUND)        -17          -              7%        0~0.7      100/400
   6        33VT          33          -              7%         1.5       100/400
   7         12V          12          -              5%         0.6       100/400
   8         Vstb         5           -              5%         1.5        50/200




                                          -24-
Description of A/V(MAIN and SUB PCB) and POWER


 Connector
             Connector number                  CN806                    CN805
                Model name                    B10P-VH                   B4P-VH
                   Maker                        JST                       JST
             The number of pins                  10                        4
                     1                      ALARM (LVP)                  5Vcntl
                     2                          GND                      5Vcntl
                     3                          GND                       GND
                     4                          GND                       GND
   Pin               5                          GND
 number              6                           Vd
                     7                           Vd
                     8                           NC
                     9                           Vs
                    10                           Vs



       Connector number              CN803        CN804 (NOT USED)     CN801
          Model name              YMW025-10R        YMW025-05R       YMW025-04R
             Maker                  YEONHO            YEONHO          YEONHO
       The number of pins              10                  5              4
               1                   5V Stand-by           3.3V          33VT
               2                     Power               3.3V           GND
               3                      GND               GND            +17V
               4                      GND               GND             GND
   Pin         5                       5V                2.5V           -17V
 number        6                      GND                2.5V
               7                      GND               GND
               8                      12V               GND
               9                      12V
              10                       NC

* CN806 is connected to CN301 of HIGH VOLTAGE PCB.
  CN805 is connected to CN302 of HIGH VOLTAGE PCB.
  CN803 is connected to PC103 of MAIN PCB.
  CN801 is connected to PC900 of SUB PCB.




                                                 -25-
 Description of A/V(MAIN and SUB PCB) and POWER


   4-4. Interface with PDP Module




 A/V




POWER




                                    < PDP Module >




                                         -26-
5. SERVICE MODE

5.1 Checking initial menu data
  (1) Check initial data of User Menu
               1) Picture
               - Mode : Normal
                           BRIGHTNESS : 32
                           CONTRAST : 48
                           COLOR : 32
                           Tint : 32 (CENTER) * Not displayed when input signal is PAL or SECAM
                           Sharpness : 32

              - Colour Temp. : Normal
              2) Sound
              - Balance : 0 (CENTER)
              - Effect : Off
              - AVC : Off
              - Mode : Normal
                          120 Hz : 0 (CENTER)
                          500 Hz : 0 (CENTER)
                          1.5 KHz : 0 (CENTER)
                          5 KHz : 0 (CENTER)
                          10 KHz : 0 (CENTER)

              3) Screen Mode : 16:9
              4) Features
              - Background : Opaque
              - Language : English
              - Child Lock : Off
              - Enhancer : On
              - Auto Power : Off
              - Time Setting
                          Clock : -- --:--
                          Off Timer : Off
                          Off Time : AM 12:00
                          Wake Timer : Off
                          Wake Time : AM 12:00
                          Wake Pro. : 1
                          Wake Vol. : 20

             - ISM
                           Pixel Shift : Off
                           Low Bright : Off

            - Initialize




                                                 -27-
SERVICE MODE


      5) Install(TV input only)
              - Auto Setup
              - Edit
              - Manual Setup

5-2 Entering SERVICE MODE

To enter SERVICE MODE
 Press " VOL" => "MUTE" => "RECALL" => "MUTE" BUTTON of Remote Controller

 (1) Check initial data of Service mode
      1) PW 181-1
        [Note] Initial data of Service Mode can be different depending on Micom(firmware) version.
                The actual data applied to each set is equal to the data of when executing "Servide
                Mode->Reset->Level 1"
              - Sub Brt : 24
              - Sub Cont : 8
              - Bias R : 32
              - Bias G : 32
              - Bias B : 32
              - Gain R : 14
              - Gain G : 16
              - Gain B : 16
      2) PW 181-2
              - DVI Brt : 16
              - DVI Cont : 0
              - Sharp Filter : Normal


      3) VPC 3230
       Main - Comm Brt : 139             PIP - pComm Brt : 139
            - Comm Cont : 44                 - pComm Cont : 49
            - Comm Peak : 3                  - pComm Peak : 3
            - CVBS Color : 112               - pCVBS Color : 112
            - CVBS Tint : 128                - pCVBS Tint : 128
            - Comp Brt : 196
            - Comp Cont : 22
            - Comp Cb : 28
            - Comp Cr : 29
            - Comp Tint : 32

      4) 9883_G
             - Bias R : 64
             - Bias G : 64
             - Bias B : 64
             - Gain R : 128
             - Gain G : 128
             - Gain B : 128
      5) 9883_V
             - Bias Cr : 64

                                               -28-
SERVICE MODE


            - Bias Y : 60
            - Bias Cb : 64
            - Gain Cr : 128
            - Gain Y : 128
            - Gain Cb : 128
    6) MDIN 150
            - Bright : 128
            - Contrast : 64
            - Color : 64
            - NR : Off
    7) Enhncr
            - B&W : ON
            - FCT : ON
            - ACR : ON
            - Gamma : ON
            - Dither : ON
            - SEISAI : ON
    8) MSP 34xx
            - Sc pScale : 21
            - FM pScale : 25
            - NC pScale : 51
    9) M2
            - Contrast :1
            - H Posi Full : 30
            - Language : 0
            - Option : 2
            - CIK Full C40 : 0
            - CIK Full C56 : 0
            - Vposi Full : 132
    10) Misc
            - Tst Ptrn : AT
            - Tst Ptrn : MA
            - AT Search ON : ON
            - TV AT OFF : ON
    11) Info (firmware version information)
    12) Reset
            - Level 1
            - Level 2
            - Factory
    13) Panel (NEC 42" SD)
            - 50Hz Mode : STD1
            - 60Hz Mode : STD1
            - Frame Conv : Off
            - Long Life : Off
            - Gamma : On
            - ED : On


                                              -29-
SERVICE MODE



5-3. Description of SERVICE MODE Items
       1) PW181-1 : Image processor control values. Mainly used to adjust White balance.
               [Note] These values need to be adjusted only after replacing MAIN PCB. These values
               may vary from set to set. Therefore if these values are recorded before replacing MAIN
               PCB, you do not need to adjust WHITE BALANCE additionally.
            (1) Sub Brt : For BRIGHTNESS adjustment (All inputs)
            (2) Sub Cont : For CONTRAST adjustment (All inputs)
            (3) Bias R : For R BRIGHTNESS adjustment (All inputs)
            (4) Bias G : For G BRIGHTNESS adjustment (All inputs)
            (5) Bias B : For B BRIGHTNESS adjustment (All inputs)
            (6) Gain R : For R CONTRAST adjustment (All inputs)
            (7) Gain G : For G CONTRAST adjustment (All inputs)
            (8) Gain B : For B CONTRAST adjustment (All inputs)
       2) PW181-2 : Additional PW181 control values
            [Note] The following values do not need to be adjusted after replacing MAIN PCB.
            Therefore you do not need to change initial values..
              (1) DVI Brt : For BRIGHTNESS adjustment (DVI)
              (2) DVI Cont : For CONTRAST adjustment (DVI)
       3) VPC3230 : VIDEO DECODER control values. Used to adjust picture quality of VIDEO/S-
          VIDEO inputs.
              [Note] The following values do not need to be adjusted after replacing MAIN PCB.
              Therefore you do not need to change initial values.
          Main
              (1) Comm Brt : For BRIGHTNESS adjustment (Video, S-video, Caption)
              (2) Comm Cont : For CONTRAST adjustment (Video, S-video, Caption)
              (3) Comm Peak : For SHARPNESS adjustment (Video, S-video, Caption)
              (4) CVBS Color : For COLOR adjustment (Video, S-video)
              (5) CVBS Tint : For TINT adjustment (Video, S-video)
              (6) Comp Brt : For BRIGHTNESS adjustment (Caption only)
              (7) Comp Cont : For CONTRAST adjustment (Caption only)
              (8) Comp Cb : For Color (Cb) adjustment (Caption only)
              (9) Comp Cr : For Color (Cr) adjustment (Caption only)
              (10) Comp Tint : For TINT adjustment (Caption only)
          Sub
              (1) pComm Brt : Fir BRIGHNTNESS adjustment (PIP Video, S-Video)
              (2) pComm Cont : For CONTRAST adjustment (PIP Video, S-Video)
              (3) pComm Peak : For SHAPNESS adjustment (PIP Video, S-Video)
              (4) pCVBS Color : For COLOR adjustment (PIP Video, S-Video)
              (5) pCVBS Tint : For TINT adjustment (PIP Video, S-Video)
       4) 9883_G : Graphic port A/D converter control values. Used to adjust picture quality of PC
          input.
              [Note] The following values do not need to be adjusted after replacing MAIN PCB.
              Therefore you do not need to change initial values.




                                                -30-
SERVICE MODE


              (1) Bias R : For R BRIGHTNESS adjustment (PC)
              (2) Bias G : For G BRIGHTNESS adjustment (PC)
              (3) Bias B : For B BRIGHTNESS adjustment (PC)
              (4) Gain R: For R CONTRAST adjustment (PC)
              (5) Gain G: For G CONTRAST adjustment (PC)
              (6) Gain B: For B CONTRAST adjustment (PC)

5) 9883_V : Video port A/D converter control values. Used to adjust picture quality of Component
   inputs.
       [Note] The following values do not need to be adjusted after replacing MAIN PCB. Therefore
       you do not need to change initial values.
              (1) Bias Cr : For Cr BRIGHTNESS adjustment (Component)
              (2) Bias Y : For Y BRIGHTNESS adjustment (Component)
              (3) Bias Cb : For Cb BRIGHTNESS adjustment (Component)
              (4) Gain Cr : For Cr CONTRAST adjustment (Component)
              (5) Gain Y : For Y CONTRAST adjustment (Component)
              (6) Gain Cb : For Cb CONTRAST adjustment (Component)

6) MDIN150 : Used to adjust DEINTERLACE performance. Affect component & video input.
     [Note] The following values do not need to be adjusted after replacing MAIN PCB. Therefore
     you do not need to change initial values.
            (1) Bright : For BRIGHTNESS adjustment (Video, S-video, Component)
            (2) Contrast : For CONTRAST adjustment (Video, S-video, Component)
            (3) Color : For COLOR adjustment (Video, S-video, Component)
            (4) NR : Noise Reduction Filter adjustment (Video, S-video, Component)

7) Enhncr : Picture Quality Enhancer. Used to adjust picture quality for all inputs.
      [Note] The following values do not need to be adjusted after replacing MAIN PCB. Therefore
      you do not need to change initial values.
              (1) B&W : Black & White Stretch ( ON: enables B Emph, W Emph, and G Emph)
              (2) FCT : Favorite Color Technology
              (3) ACR : Accurate Color Reproduction
              (4) Gamma : Video Inverse Gamma(=1.47) Correction
              (5) Dither : Error Diffusion
              (6) SEISAI : Random dither pattern masking

8) MSP34xx : Sound processor
     [Note] The following values do not need to be adjusted after replacing MAIN PCB. Therefore
     you do not need to change initial values.
             (1) Sc pScale : Prescale adjustment for external input(Video, Component, PC, DVI etc.)
             (2) FM pScale : FM/AM prescale adjustment
             (3) NC pScale : NICAM prescale adjustment

9) M2 : Teletext decoder
               (1) Contrast : Text Contrast
               (2) H Posi Full : Adjust H position in Full Text
               (3) Language
Teletext Language Group Table
    0               West Europe(England/France/Sweden/Czech/Germany/Spain/Italy)
    1         East Europe(Poland/France/Sweden/Czech/Germany/Slovenia/Italy/Romania)
    2          Turkish/Greek(England/France/Sweden/Turkey/Germany/Spain/Italy/Greece)
    3                                              Cyrillic
    4                                        ARAB/HEBREW
    5                                           FARSI ALL
                                               -31-
SERVICE MODE


              (4) Option
                  0 : Top
                  1 : Flop
                  2 : Top & Flop
              (5) CIK Full C40 : Adjust pixel clock in half text 40 column text
              (6) CIK Full C56 : Adjust pixel clock in half text 56 column text
              (7) Vposi Full : Adjust V position in Full Text

10) MISC
              (1) TST PTRN AT : Cycled patterns from R G B WH every 1 minute automatically.
              (2) TST PTRN MA : Cycled patterns from BK WH R G B by pressing volume up key
              (3) AT Search ON : Auto program search and sorting.
              (4) TV AT OFF : When in TV mode and no signal is detected for 30 min, the set is turned
                              off automatically.

11) INFOR : MICOM(firmware) version information
      (9 digits model name, 2digits year, 2digits month, and 2 digits date : e.g. DPP4242xH_050315 )

12) RESET
              (1) LEVEL 1: Reset all values (service mode & user menu).
              (2) LEVEL 2: Reset all except PW181-1 values
              (3) FACTORY: Reset user menu values

13) PANEL
              (1) 50Hz Mode :
              - STD1 : Standard Mode 1 (Peak Luminance 100%, False Contour Good)
              - STD2: Standard Mode 2 (Peak Luminance 100%, False Contour Bad)
              - HIQ1: High Image Quality Mode 1 (Peak Luminance 70%, False Contour Very Good)
              - HIQ2: High Image Quality Mode 2 (Peak Luminance 70%, False Contour Good)
              (2) 60Hz Mode :
              - STD1: Standard Mode 1 (Peak Luminance 100%, False Contour Good)
              - STD2: Standard Mode 2 (Peak Luminance 100%, False Contour Bad)
              - HIQ1: High Image Quality Mode 1 (Peak Luminance 70%, False Contour Very Good)
              - HIQ2: High Image Quality Mode 2 (Peak Luminance 70%, False Contour Good)
              (3) Frame Conv :
              - Off: Input Vsync Frequency = Panel Display Vsyinc Frequency
              - On: Panel Display Vsync Frequency Fixed (=60Hz)
              (4) GAMMA : Panel Inverse Gamma Correction
              (5) ED : Panel Error Diffusion
              (6) EXT PLE : 30% increased luminance




                                                  -32-
6. Adjusting Method

6-1. WHITE BALANCE Adjustment
      1) Apply 5 Step Gray Scale pattern to Video input terminal (Pattern generator: MIK 7253S)




                                  Figure 6-1 Step Gray Scale Pattern
      2) Check initial data from USER CONTROL (refer to 5-1)
      3) In order to start Service mode, press button in following order " Vol -> Mute -> Recall
         (Display) -> Mute" of the remote control. And then select PW181-1 for checking initial data of
         the SERVICE MODE (refer to 5-2).
      4) Attach the sensor of White Balance Meter (CA-100) to the 80% white level of the screen.
      5) Adjust White Balance by controlling R, G, B GAIN.
      . Control R, G, B GAIN values so that the ranges are within DP (Default Value) 10. If the gains
        are deviated from the range, the SET is disqualified.
      . Set color coordinate to x=0.285 0.005, y=0.275 0.005, and the Color Temperature to greater
        than 10,000 K.
      6) Attach the sensor of White Balance Meter to 40% of white level on the screen
      7) Adjust White Balance by varying the values of R,G, B BIAS.
      . Control R, G, B BIAS values so that the ranges are within "Default Value" 5. If deviate from
        the range, classify the SET disqualified.
      . Set color coordinate to x=0.285 0.005, y=0.285 0.005.
      8) Repeat from 4) to 7) until color coordinate is x=0.285 0.005, y=0.275 0.005, and then adjust
         Sub Contrast for that the luminance is above or equal to 150 Cd/m2 when the sensor of White
         Balance Meter is attached to 100% of white level on the screen.
      9) To exit the Service mode, press Menu button of the remote control.




                                                 -33-
Adjusting Method


6-2. POWER ADJUSTMENTS
     Video pattern condition: 100 IRE Full White Pattern
     Power Adjustment is controlling the panel values set by module maker previously. If there is
     problem after power adjustment, classify as a defect and contact PDP module maker.

1. Vs (Vsus Voltage): Sustain Voltage
    Measurement equipment : Digital Volt Meter ( DC Volt mode )
    Adjusting TP : TP204 (See Picture 6-2)
    Adjusting Voltage : The voltage which is written at upper center of DATA BAR in PDP Module.
    (Typical Voltage: 175 V, See Picture 6-1)




                      Picture 6-1. Power Connection and Voltage Adjustment Label

                                                   -34-
Adjusting Method


2. Vd (Vadd Voltage) : DATA Input Voltage
    Measurement equipment : Digital Volt Meter ( DC Volt mode )
    Adjusting TP : TP206 (See Picture. 6-2)
    Adjusting VOLUME:
    Adjusting Voltage : The voltage which is written at upper center of DATA BAR in PDP Module.
    (Typical Voltage: Picture - Picture. 6-2)




                                Picture. 6-2 Power Adjustment Points

< Note >
1. Auto & Normal S/W
   This switch is used to test power board therefore for normal operation always set it to "NORMAL".
   Do not touch while operating
2. High voltage S/W
   Do not touch while operating
3. When replacing a power board make sure to check these switches.
  . High voltage S/W -> "HIGH"
  . Auto & Normal S/W -> "NORMAL"




                                                 -35-
7. SOFTWARE UPGRADE Method

   1. Check whether MAIN PCB is connected to SUB PCB(JP117 to JA109).
   2. Connect 9-PIN serial cable to the serial port of the computer.
   3. Connect the opposite end of the serial cable to RS-232C port of SUB PCB.
   4. Run Flashupgrader.exe in the PC to excute the program as shown below.




5. Select current Upgrade file
   - Click "Choose..." button to select the file you want to upgrade.
   - Select the file (pwSDK.inf) that you want to upgrade.




                                                    -36-
SOFTWARE UPGRADE Method


6. Select correct COM Port and Baud Rate(115200) as shown below. Then press Flash button to finish
   setup.




7. Turn on the ac power and then upgrade program will start the download as shown below.




                                                -37-
SOFTWARE UPGRADE Method


8. When the upgrading is complete, a window (below) will be opened. Press "Finish" button to complete
   the process.




                                                -38-
  8. Main PCB Trouble Diagnosis

8-1. MAIN & SUB PCB Trouble Diagnosis

  [NOTE] Refer to "PDP MODULE" section for trouble diagnosis other than MAIN, SUB and POWER
           PCB.
  1. Common checking process when "No signal" or "No raster"
     (No signal: OSD is working but no images are displaying, No raster: Not even OSD is displaying)

                     Ch eck start

                               Y


                                                      N                                    Is a weak         N       1.Check AC connection
               Does "No si gn al " screen                                            discharge detected              2. Check Power S/W ON
                      appear ?                                                          in the screen?               3. Check other PCBs


                                                                                                 Y
                               Y
                                                                                     Is LVDS connecti on
                                                                                                               N      Check LVDS connection
                                            N       N                               correctly connected?              CN101 of Digital PCB &
                Is the signal input Jack            Check the connectio n of                                            P100 of Main PCB
                 properly connected?                Jack(PDP and AV device)

                                                                                                 Y
                               Y
                                                                                  Is waveform of DVS,DHS,
                                                                                                                 N
                                            N                                   DCLK in the Main PCB normal?
                                                                                                                        Replace Main PCB
                Does input source (AV               Check AV device                   TP(187,184,181)                    and/or Sub PCB
                    device) work ?


                               Y                                                                 Y
                                                N                              1. Check other PCBs and connectors
                Is input selection in the              Check input                (Refer to PDP Module section)
                     Correct mode ?                      mode



                               Y
                   Replace Main PCB
                    and/or Sub PCB


  2. When "No signal" in Video, S-VIDEO, and Component modes.
      (1) First check if PC input is working.
        If PC is not working replace MAIN PCB.
        For detail examination, with an oscilloscope check TP188, TP184 a



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