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cp-185m_136


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                                               S/M No. : TCP185MEF1




 Service Manual
 Color Television
 CHASSIS : CP-185M
 Model : KR14E5/DTA-14V3VM
         KR20E5/DTA-20V3VM
         KR21E5/DTA-21V3VM




                         14V3/20V3/21V3


   Specification
Version                                        TK
TV Standard               PAL-SECAM B/G-D/K
Sound system              MONO
Power Consumption         14": 39W; 20": 42W; 21": 45W
Sound Output Power        2.5W(at 60% mod, 10% THD)
Speaker                   3W 8 ohm
Teletext system           NONE
Aerial Input              75ohm unbalanced
Channel coverage          Off-air cannels, S-cable channels and hyperband
Tuning System             Frequency synthesiser tuning system
                          14" : 34cm
Visual screen size        20" : 48cm
                          21" : 51cm
Channel indication        On screen Display
Program selection         100 programmes
                          EURO-SCART:Audio /Video and Out, R/G/B in,
Auxiliary Output Terminal slow and fast wtching, SVHS in.
                          Audio-Video jack on front of cabinet in common
                          connection with EURO-SCART.
                          Headphone jack(3.5mm)on front of cabinet
Remote Control            R-40A10



      DAEWOO ELECTRONICS CO., LTD
      http : //svc.dwe.co.kr                                 Feb. 2001
  TABLE OF CONTENTS
SAFETY INSTRUCTION......................................................................................................................2
SPECIFICATIONS ...............................................................................................................................3
    1. 21 Pin EURO-SCART ..................................................................................................................................3
    2 Channel table ...............................................................................................................................................4

CIRCUIT BLOCK DIAGRAM...............................................................................................................6
ALIGNMENT INSTRUCTIONS ............................................................................................................7
    1. Service mode ...............................................................................................................................................7
    2. Microcontroller configuration ........................................................................................................................7
    3. TV SET Alignment........................................................................................................................................7

SCHEMATIC DIAGRAM......................................................................................................................9
EXPLODED VIEW ...............................................................................................................................10
PRINTED CIRCUIT BOARD................................................................................................................13
SERVICE PARTS LIST........................................................................................................................14
    1. The different parts list...................................................................................................................................19

  APPENDIX (Appendix is provide only by internet [http://svc.dwe.co.kr])

FUNCTIONAL DESCRIPTION ............................................................................................................1
IC DESCRIPTION ................................................................................................................................16




                                                                                        1
 SAFETY INSTRUCTION

  WARNING : Only competent service personnel may carry out work involving the testing or repair of this equipment


   X-RAY RADIATION PRECAUTION
1. Excessive high voltage can produce potentially hazardous X-RAY RADIATION. To avoid such hazards, the high
   voltage must not exceed the specified limit. The nominal value of the high voltage of this receiver is 22-23 kV (14" or
                                                                                                                       )
   24-26 kV (20"- 21" at max beam current. The high voltage must not, under any circumstances, exceed 27.5 kV (14"
                      )                                                                                                  ,
   20" 29KV (21" Each time a receiver requires servicing, the high voltage should be checked. It is important to use an
       ),         ).
   accurate and reliable high voltage meter.

2. The only source of X-RAY Radiation in this TV receiver is the picture tube. For continued X-RAY RADIATION
   protection, the replacement tube must be exactly the same type tube as specified in the parts list.




   SAFETY PRECAUTION
1. Potentials of high voltage are present when this receiver is operating. Operation of the receiver outside the cabinet or
   with the back cover removed involves a shock hazard from the receiver.
   1)Servicing should not be attempted by anyone who is not thoroughly familiar with the precautions necessary when
      working on high voltage equipment.
   2)Discharge the high potential of the picture tube before handling the tube. The picture tube is highly evacuated and if
      broken, glass fragments will be violently expelled.
2. If any Fuse in this TV receiver is blown, replace it with the FUSE specified in the Replacement Parts List.
3. When replacing a high wattage resistor (oxide metal film resistor) in circuit board, keep the resistor body 10 mm away
   from the circuit board.
4. Keep wires away from high voltage or high temperature components.
5. This receiver must operate under AC 230 volts, 5O Hz. NEVER connect to a DC supply of any other voltage or
   frequency.




   PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in this equipment have special safety-related characteristics. These characteristics are
often passed unnoticed by a visual inspection and the X-RAY RADIATION protection afforded by them cannot necessarily be
obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these spe-
cial safety characteristics are identified in this manual and its supplements, electrical components having such features are
identified by designated symbol on the parts list. Before replacing any of these components, read the parts list in this manual
carefully. The use of substitutes replacement parts which do not have the same safety characteristics as specified in the parts
list may create X-RAY Radiation.




                                                                2
 SPECIFICATIONS
21Pin EURO-SCART

     PIN      SIGNAL DESCRIPTION                                 MATCHING VALUE
1          Audio Output Right      0.5 Vrms, Impedance < 1k, (RF 54% Mod)
2          Audio Input Right       0.5Vrms, Impedance > 10k
3          Audio Output Left       0.5 Vrms, Impedance < 1k, (RF 54% Mod)
4          Audio Earth
5          Blue Earth
6          Audio Input Left        0.5Vrms, Impedance > 10k
7          Blue Input              0.7Vpp + 0.1V, Inpedance 75
8          Slow Switching          TV : 0 to 2V, AV : 4.5 to 12V, Impedance > 10k
9          Green Earth
10         N.C
11         Green Input             0.7Vpp + 0.1V, Impedance 75
12         N.C
13         Red Earth
14         Blanking Earth
           Red Input               0.7Vpp + 0.1V, Impedance 75
15
           Chroma Input            + 3dB for a luminance signal of 1 Vpp
16         Fast Switching          0 to 0.4V : Logic " , 1 to 3V : Logic " , Impedance 75
                                                      0"                  1"
17         Video Out Earth
18         Video In Earth
19         Video Output            1 Vpp + 3dB, Impedance 75
20         Video Input             1 Vpp + 3dB, Impedance 75
21         Common Earth




                                                       3
SPECIFICATIONS




Channel table

   FREQUENCY TABLE CP-185M

        EUROP                   GB(IRE-   EAST               EUROP             GB(IRE-   EAST
 CH               FRANCE                               CH             FRANCE
        E CCIR                  LAND)      OIRT              E CCIR            LAND)      OIRT
 C01     46.25         -         45.75     49.75       C40   623.25   623.25   623.25    623.25
 C02     48.25     55.75 (L')    53.75     59.25       C41   631.25   631.25   631.25    631.25
 C03     55.25     60.5 (L')     61.75     77.25       C42   639.25   639.25   639.25    639.25
 C04     62.25     63.75 (L')   175.25     85.25       C43   647.25   647.25   647.25    647.25
 C05    175.25      176.00      183.25     93.25       C44   655.25   655.25   655.25    655.25
 C06    182.25      184.00      191.25    175.25       C45   663.25   663.25   663.25    663.25
 C07    189.25      192.00      199.25    183.25       C46   671.25   671.25   671.25    671.25
 C08    196.25      200.00      207.25    191.25       C47   679.25   679.25   679.25    679.25
 C09    203.25      208.00      215.25    199.25       C48   687.25   687.25   687.25    687.25
 C10    210.25      216.00      223.25    207.25       C49   695.25   695.25   695.25    695.25
 C11    217.25   189.25 (LUX)   231.25    215.25       C50   703.25   703.25   703.25    703.25
 C12    224.25     69.25 (L')   239.25    223.25       C51   711.25   711.25   711.25    711.25
 C13     53.75     76.25 (L')   247.25       -         C52   719.25   719.25   719.25    719.25
 C14       -       83.25 (L')    49.75       -         C53   727.25   727.25   727.25    727.25
 C15     82.25       90.25       57.75       -         C54   735.25   735.25   735.25    735.25
 C16       -         97.25       65.75       -         C55   743.25   743.25   743.25    743.25
 C17    183.75         -         77.75       -         C56   751.25   751.25   751.25    751.25
 C18    192.25         -         85.75       -         C57   759.25   759.25   759.25    759.25
 C19    201.25         -           -         -         C58   767.25   767.25   767.25    767.25
 C20       -           -           -         -         C59   775.25   775.25   775.25    775.25
 C21    471.25      471.25      471.25    471.25       C60   783.25   783.25   783.25    783.25
 C22    479.25      479.25      479.25    479.25       C61   791.25   791.25   791.25    791.25
 C23    487.25      487.25      487.25    487.25       C62   799.25   799.25   799.25    799.25
 C24    495.25      495.25      495.25    495.25       C63   807.25   807.25   807.25    807.25
 C25    503.25      503.25      503.25    503.25       C64   815.25   815.25   815.25    815.25
 C26    511.25      511.25      511.25    511.25       C65   823.25   823.25   823.25    823.25
 C27    519.25      519.25      519.25    519.25       C66   831.25   831.25   831.25    831.25
 C28    527.25      527.25      527.25    527.25       C67   839.25   839.25   839.25    839.25
 C29    535.25      535.25      535.25    535.25       C68   847.25   847.25   847.25    847.25
 C30    543.25      543.25      543.25    543.25       C69   855.25   855.25   855.25    855.25
 C31    551.25      551.25      551.25    551.25       C70   863.25   863.25   863.25    863.25
 C32    559.25      559.25      559.25    559.25       C71    69.25     -         -         -
 C33    567.25      567.25      567.25    567.25       C72    76.25     -         -         -
 C34    575.25      575.25      575.25    575.25       C73    83.25     -         -         -
 C35    583.25      583.25      583.25    583.25       C74    90.25     -         -         -
 C36    591.25      591.25      591.25    591.25       C75    97.25     -         -         -
 C37    599.25      599.25      599.25    599.25       C76    59.25     -         -         -
 C38    607.25      607.25      607.25    607.25       C77    93.25     -         -         -
 C39    615.25      615.25      615.25    615.25       S01   105.25   104.75   103.25    105.25


                                                   4
                                                                       SPECIFICATIONS




      EUROP             GB(IRE-   EAST               EUROP              GB(IRE-   EAST
CH             FRANCE                          CH             FRANCE
      E CCIR            LAND)      OIRT              E CCIR             LAND)      OIRT
S02   112.25   116.75   111.25    112.25       S22   311.25   311.25     311.25   311.25
S03   119.25   128.75   119.25    119.25       S23   319.25   319.25     319.25   319.25
S04   126.25   140.75   127.25    126.25       S24   327.25   327.25     327.25   327.25
S05   133.25   152.75   135.25    133.25       S25   335.25   335.25     335.25   335.25
S06   140.25   164.75   143.25    140.25       S26   343.25   343.25     343.25   343.25
S07   147.25   176.75   151.25    147.25       S27   351.25   351.25     351.25   351.25
S08   154.25   188.75   159.25    154.25       S28   359.25   359.25     359.25   359.25
S09   161.25   200.75   167.25    161.25       S29   367.25   367.25     367.25   367.25
S10   168.25   212.75      -      168.25       S30   375.25   375.25     375.25   375.25
S11   231.25   224.75      -      231.25       S31   383.25   383.25     383.25   383.25
S12   238.25   236.75      -      238.25       S32   391.25   391.25     391.25   391.25
S13   245.25   248.75   255.25    245.25       S33   399.25   399.25     399.25   399.25
S14   252.25   260.75   263.25    252.25       S34   407.25   407.25     407.25   407.25
S15   259.25   272.75   271.25    259.25       S35   415.25   415.25     415.25   415.25
S16   266.25   284.75   279.25    266.25       S36   423.25   423.25     423.25   423.25
S17   273.25   296.75   287.25    273.25       S37   431.25   431.25     431.25   431.25
S18   280.25   136.00   295.25    280.25       S38   439.25   439.25     439.25   439.25
S19   287.25   160.00   303.25    287.25       S39   447.25   447.25     447.25   447.25
S20   294.25     -         -      294.25       S40   455.25   455.25     455.25   455.25
S21   303.25   303.25      -      303.25       S41   463.25   463.25     463.25   463.25




                                           5
CIRCUIT BLOCK DIAGRAM




                  6
ALIGNMENT INSTRUCTIONS
Microcontroller configuration : Service mode
To switch the TV set into service mode please see instruction below.

  1 - Select pr. number 91
  2 - Adjust sharpness to minimum and exit all menu.
  3 - Quickly press the key sequence : RED - GREEN - menu

To exit SERVICE menu press menu key or Std By key.

In Service Mode press "OK"to stop the microcontroller i.e. the I2C bus is free and the set can be controlled by external equipment.
Press "OK"again to allow the microcontroller to control the set again

Microcontroller configuration :

Tuner Option

 Option              Tuner maker
 DW                  DAEWOO / SAMSUNG
 PH1                 PHILIPS ( Video processor AGC )
 PH2                 PHILIPS (tuner internal AGC )

System Option

 Option              System
 TF                  PAL - B/G
 TK                  PAL/SECAM - B/G, D/K (set for Russia)
 TU                  PAL - I/I
 TA                  PAL/SECAM - B/G, SECAM - L/L'


TV set Alignment
    1 - G2 alignment
      - Set TV in NORMAL I mode
      - TV in AV mode without video signal ? Black screen.
      - TV preset with WP Red, WP Green and WP Blue equal to 32.
      - TV preset with Black R, Black G equal to 8.
     - Adjust screen volume ( on FBT ) such that the highest cathode cut-off voltage measured on CRT board, is Vcut-off 



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