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PUNKTAL+PK-D29+(MISMO+MICRO,JUNGLA+Y+SINTO)+CHASIS+DAEWOO+CM-003+DTH-14V1FS


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                                              S/G No. : CM003P-010G1


Service Guide
Color Television
CHASSIS : CM-003
Model : DTH-14V1FS
        DTH-20V1FS
        DTH-21V1FS
        DTH-14V3FS
        DTH-20V3FS
        DTH-21V3FS
        DTH-14V4FS
        DTH-20V4FS
        DTH-21V4FS

                                                                                                             POWER
                                                                                           MUTE


                                                                                                     CH




                                                                                            VOL               VOL



                                                                                                     CH
                                                                                           DISPLAY   INPUT    VIDEO


                                                                                            1        2        3


                                                                                            4        5        6


                                                                                            7        8        9


                                                                                           SLEEP         0   PREVIOUS




 DTH-14V1FC                     DTH-14V3FC                     DTH-20V4FC              R-38T01

Features
   181CH quartz frequency synthesis tuning system
   On-Screen Display(Simple Icon Type/Trilingual : Eug/Span/Fren)
   Programmable channel skip memory
   24 hour programmable TV on/off function
   Convenient sleep timer
   Built-in Closed Caption
   Full function infrared remote control

Specifications
Model Name             DTH-14V1/V3/V4FS         DTH-20V1/V3/V4FS          DTH-21V1/V3/V4FS
Screen Size           14"                       20"                       21"
                      VHF 2-13                  VHF 2-13                  VHF 2-13
Channel Coverage      UHF 14-69                 UHF 14-69                 UHF 14-69
                      113 Cable Ch.             113 Cable Ch.             113 Cable Ch.
Power Source           AC 100-260, 50/60Hz      AC 100-260, 50/60Hz       AC 100-260, 50/60Hz
Power Consumption 63W                           70W                       73W
Set Dimensions
                      336 x 338 x 376(mm) 496x446(2)(2)x464(4)(3)(mm) 516x469(6)(4)x482(6)(2)(mm)
(W H D)
Net Weight            8.7Kg                     16.3Kg                    19Kg
Stuffing Q'th(48ft)   1100Set                   540Set



    DAEWOO ELECTRONICS CO., LTD
    http : //svc.dwe.co.kr                                                  Sep. 1999
Important Service Notes
1. X-ray Radiation Rrecaution                                                          Connect at 1500 ohm 10 watt resistor, paralleled by a 0.15 mfd. AC type
1) Excessive high voltage can produce potentially hazardous X-RAY RADIA-               capacitor, between a known good earth ground (water pipe, conduit etc.)
   TION. To avoid such hazards, the high voltage must not be above the spec-           and the exposed metallic parts, one at a time. Measure the AC voltage
   ified limit. The nominal value of the high voltage of this receiver is              across the combination of 1500 ohm resistor and 0.15 mfd capacitor. Volt-
   25.5kv(20" ) & 23.5kv(14" zero beam current (minimum brightness)
            /21"           )at                                                         age measured must not exceed 0.3 volts RMS. This corresponds to 0.2 mill-
   under a 120V/220V AC power source. The high voltage must not, under any             liamp. AC. Any value exceeding the limit constitutes a potential shock
   circumstances, exceed 28kv(20" ) & 26kv(14" Each time a receiver
                                /21"         ).                                        hazard and must be corrected immediately.
   requires servicing, the high voltage should be checked following the HIGH
   VOLTAGE CHECK procedure on page 10 of this manual. It is recom-                                              AC VOLT METER
   mended as a parts of the service record. It is important to use an accurate
   and reliable high voltage meter.
2) This receiver is equipped with X-RADIATION PROTECTION circuit which
   prevents the receiver from producing an excessively high voltage even if the
   B+voltage increases abnormally. Each time the receiver is serviced, X-
   RADIATION PROTECTION circuit must be checked to determine that the
                                                                                                                        0.15MFD
   circuit is properly functioning, following the X-RADIATION PROTECTION
   CIRCUIT CHECK procedure on page 6 of this manual.                                                                                      Place this probe
                                                                                                                        1500 ohm
3) The only source of X-RAY RADIATION in this TV receiver is the picture tube.             Good earth ground            10watt            on each exposed
                                                                                                                                          metallic part.
   For continued X-RAY RADIATION protection, the replacement tube must                     such as d water
                                                                                           pipe, conduit, etc.
   be exactly the same type tube as specified in the parts list.
4) Some parts in this receiver have special safety-related characteristics for X-
   RAY RADIATION protection. For continued safety, parts replacement                3. Product Safety Notice
   should be undertaken only after referring to the PRODUCT SAFETY                  Many electrical and mechanical parts in this chassis have special safety-related
   NOTICE below.                                                                    characteristics. These characteristics are often passed unnoticed by a visual
                                                                                    inspection and the protection afforded by them cannot necessarily be obtained
2. Safety Precaution                                                                by using replacement components rated for higher voltage, wattage, etc.
WARNING: Service should not be attempted by anyone unfamiliar with the              Replacement parts which have these special safety characteristics are identi-
necessary precaution on this receiver. The following are the necessary precau-      fied in this manual and its supplements; electrical components having such fea-
tion to be observed before servicing.                                               tures are identified by shading on the schematic diagram and the parts list.
                                                                                    Before replacing any of these components, read the parts list in this manual
1) Since the chassis of this receiver has hazardous potential to ground when-       carefully. The use of substitute replacement parts which do not have the same
   ever the receiver is plugged in (floating chassis), an isolation transformer     safety characteristics as specified in the parts list may create X-ray radiation or
   must be used during servicing to avoid shock hazard.                             other hazards.
2) Always discharge the picture tube anode to the CRT conductive coating the
   picture tube. The picture tube is highly evacuated and if broken, glass frag-    4. Service Notes
   ments will be violently expelled. Use shatterproof goggles and keep picture      1) When replacing parts or circuit boards, clamp or bend the lead wires to termi-
   tube away from the body while handling.                                             nals before soldering.
3) When placing chassis in the cabinet, always be certain that all the protective   2) When replacing a high wattage resistor (metal oxide film resistor) in the cir-
   devices are put back in place, such as; nonmetallic control knobs, insulat-         cuit board, keep the resistor min 1/2 inch away form circuit board.
   ing covers, shields, isolation resistor-capacitor network, etc.                  3) Keep wires away from high voltage or high temperature components.
4) Before returning the set to the customer, always perform an AC leakage cur-
   rent check on the exposed metallic parts of the cabinet, such as antennas,
   terminals, screw-heads, metal overlays, control shafts etc. to be sure the set
                                                                                    DAEWOO ELECTRONICS CO., LTD.
   is safe to operate without danger of electrical shock. Plug the AC line cord     C.P.OBOX8003 SEOUL, KOREA
   directly into a 120V AC outlet (do not use a line isolation transformer during   Tel : 82-2-360-8179
                                                                                    Fax : 82-2-360-8184
   this check). Use an AC voltmeter having 5000 ohms per volt or more sensi-
                                                                                    E-mail : G7F00E@dwe.web.co.kr
   tivi-ty in the following manner.                                                 Printed in Nov. 1998
                                                                                                            Parts Location on Main Board(Solder Side)
                                                                                           T
                                                                                                         LOC   X    Y      LOC   X    Y     LOC      X    Y     LOC    X    Y
                                                                                                       CONDENSOR         CC560   4    M    Q702      10   D   RC506    7    K
                                                                                                        C101   2    P    CC562   3    L    Q703      9    D   RC507    7    L
                                                                                           S            C102   2    Q    CC564   4    M    Q704      9    E   RC508    7    J
                                                                                                        C103   2    R    CC565   4    L    Q706      12   C   RC509    7    I
                                                                                                        C104   5    O    CC567   4    K    Q707      13   C   RC510    2    N
                                                                                                        C105   5    P    CC568   4    L    Q801      14   J   RC520    2    M
                                                                                                        C106   5    N    CC569   3    O    Q804      11   N   RC525    3    L
                                                                                           R            C107   5    N    CC570   5    M    Q805      12   D   RC526    4    L
                                                                                                        C301   7    Q    CC571   5    M    QV01      9    B   RC530    3    M
                                                                                                        C302   5    Q    CC573   5    M   RESISTOR            RC531    3    M
                                                                                                        C303   7    P    CC574   4    M    R301      7    R   RC533    2    N
                                                                                                        C305   5    R    CC575   4    L    R302      8    R   RC554    7    N
                                                                                           Q            C307   6    P    CC577   4    M    R303      8    R   RC557    5    K
                                                                                                        C308   7    P    CC578   4    M    R305      8    R   RC558    3    O
                                                                                                        C310   8    Q    CC579   4    M    R352      6    Q   RC559    2    O
                                                                                                        C311   7    Q    CC580   3    O    R353      7    Q   RC561    3    N
                                                                                                        C401   15   L    CC582   4    L    R401      15   L   RC562    4    N
                                                                                           P            C403   17   L    CC662   3    G    R402      14   M   RC563    2    L
                                                                                                        C404   18   N    CC663   2    I    R403      14   L   RC565    3    J
                                                                                                        C405   13   M    CC752   7    G    R405      14   L   RC566    3    J
                                                                                                        C406   15   M    CC753   8    G    R411      13   Q   RC567    4    L
                                                                                                        C408   9    N    CC754   7    F    R412      13   S   RC568    4    K
                                                                                           O            C410   10   Q    CC755   7    F    R413      13   R   RC569    4    J
                                                                                                        C411   10   S    CC756   9    C    R414      13   R   RC570    4    K
                                                                                                        C412   12   R    CC757   7    F    R416      18   L   RC571    4    L
                                                                                                        C413   12   S    CC758   6    G    R418      10   P   RC572    4    K
                                                                                           N            C414   9    R    CC759   6    G    R419      9    Q   RC573    4    L
                                                                                                        C415   10   R    CC760   6    G    R420      4    R   RC655    2    G
                                                                                                        C416   12   Q    CC761   7    G    R425      9    M   RC656    3    H
                                                                                                        C417   11   S    CC762   7    G    R451      10   S   RC703    8    C
                                                                                                        C418   14   S    CC765   7    H    R452      4    S   RC704    6    H
                                                                                           M            C451   10   P    CC766   7    H    R501      8    J   RC705    7    I
                                                                                                        C452   10   Q    CC767   7    F    R502      6    K   RC706    7    I
                                                                                                        C501   6    N    CC768   6    F    R511      6    M   RC707    6    H
                                                                                                        C502   5    L    CC780   8    C    R515      7    D   RC731    10   C
                                                                                                        C507   5    K    CC801   11   J    R555      6    N   RC732    6    H
                                                                                           L            C508   2    L    CC900   2    B    R601      2    I   RC733    6    G
                                                                                                        C509   5    L    CCA01   7    B    R602      6    B   RC734    5    G
                                                                                                        C510   5    K    CCA02   4    M    R604      4    H   RC735    6    F
                                                                                                        C511   5    K   DIODE              R605      6    I   RC737    9    E
                                                                                                        C512   2    P     D101   4    Q    R701      10   B   RC738    10   E
                                                                                           K            C513   2    N     D105   4    Q    R708      11   D   RC740    7    E
                                                                                                        C514   3    M     D301   6    R    R709      14   C   RC751    8    C
                                                                                                        C515   2    M     D401   14   L    R712      11   D   RC752    8    B
                                                                                                        C516   2    M     D404   18   N    R736      9    E   RC756    8    G
                                                                                                        C517   3    L     D405   12   Q    R743      13   C   RC759    8    H
                                                                                           J            C518   2    O     D406   12   S    R744      14   C   RC762    12   C
                                                                                                        C519   3    K     D407   12   R    R746      14   C   RC763    11   B
                                                                                                        C520   3    K     D408   12   R    R747      15   C   RC766    8    K
                                                                                                        C521   4    K     D409   19   K    R750      11   C   RC770    8    H
                                                                                           I            C523   3    K     D501   6    N    R775      11   C   RC781    9    C
                                                                                                        C524   2    P     D502   8    K    R776      11   B   RC782    7    F
                                                                                                        C525   2    N     D503   4    R    R780      7    D   RC784    8    F
                                                                                                        C601   5    O     D504   8    J    R785      7    E   RC786    7    G
                                                                                                        C602   2    J     D505   4    R    R789      2    R   RC787    8    B
                                                                                           H            C603   3    G     D701   9    E    R790      2    R   RC788    8    B
                                                                                                        C604   3    H     D703   11   A    R799      9    F   RC790    8    G
                                                                                                        C605   3    H     D704   9    E    R801      15   G   RC791    5    F
                                                                                                        C701   9    B     D757   10   D    R801A     16   G   RC792    5    G
                                                                                                        C702   8    F     D801   15   F    R802      15   H   RC793    5    G
                                                                                           G            C703   9    D     D807   10   L    R803      14   H   RC794    5    G
                                                                                                        C704   8    D     D808   9    L    R804      15   I   RC795    10   D
                                                                                                        C705   8    E     D812   13   C    R805      13   G   RC796    10   D
                                                                                                        C706   14   C     D813   9    J    R809      17   H   RC797    10   C
                                                                                                        C707   13   D     D822   10   L    R813      10   O   RC861    13   B
                                                                                           F            C708   8    D   IC                 R814      11   O   RC862    8    N
                                                                                                        C801   16   D      I101  5    O    R817      13   D   RC913    2    B
                                                                                                        C802   14   F      I301  6    Q    R818      13   D   RC914    2    B
                                                                                                        C803   17   H      I401  9    P    R820      7    N   RC915    1    B
                                                                                                        C804   17   J      I601  2    I    R822      9    M   RC923    2    A
                                                                                           E            C805   13   I      I701  8    H    R880      16   K   RC924    2    A
                                                                                                        C806   12   J      I703  8    D    R883      19   H   RC925    1    A
                                                                                                        C812   9    I      I801  11   G    R888      16   B   RCA01    7    B
                                                                                                        C813   9    K      I901  2    A    R910      3    C   RCA02    7    B
                                                                                           D            C814   11   M     IL701  10   A    R911      2    C   RCA03    2    M
                                                                                                        C815   8    L   COIL               R912      3    C   RCA04    1    M
                                                                                                        C818   10   N     L111   4    P    R913      3    B   RCV02    8    B
                                                                                                        C819   8    N     L112   6    O    R914      2    B    RLY1    19   K
                                                                                                        C820   12   P     L401   13   N    R915      1    B    RS801   19   D
                                                                                           C            C826   13   B     L501   3    N    RC105     5    M   OTHERS
                                                                                                        C832   10   I     L502   4    O    RC111     3    P    SF101   5    Q
                                                                                                        C880   14   K     L533   2    N    RC150     5    O   SW701    18   A
                                                                                                        C881   11   H     L701   11   E    RC151     5    O   SW702    17   A
                                                                                                        C902   3    B     L800   13   F    RC154     5    N   SW703    16   A
                                                                                           B            C905   3    B     L801   15   D    RC156     4    N   SW704    14   A
                                                                                                        C965   1    C     L802   13   I    RC165     6    O   SW705    13   A
                                                                                                        CC151  3    R     L805   11   P    RC351     7    P   SW706    12   A
                                                                                                        CC152  5    O     L807   10   K    RC359     8    Q   SW801    19   D
                                                                                                        CC153  4    N     L808   9    K    RC360     8    Q   SW802    18   D
                                                                                           A            CC154  4    N   TRANSISTOR         RC361     8    Q     T401   16   L
                                                                                               Y        CC155  4    N     Q401   15   L    RC362     7    Q     T402   16   Q
                                                                                                        CC528  3    N     Q402   18   L    RC426     8    M     T801   11   K
                                                                                                        CC551  4    M     Q403   9    N    RC453     9    N     U102   3    S
1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20                CC552  4    M     Q503   8    L    RC454     14   L     X502   3    L
                                                                                                        CC556  3    O     Q601   3    I    RC455     14   L    XC701   8    G
                                                                                                   X    CC558  3    N     Q701   10   D    RC503     7    N     Z501   2    O
Alignment Instructions                                                                                               TABLE-B
                                                                                                                                                                                      DATA
                                                                                                                        MODE               ADJUSTMENT ITEMS                                                                          REMARKS
1. Service Mode Adjustments                                                                                                                                                INITIAL           RANGE
  Follow the steps below whenever service adjustment is required. See Table- A and Table- B to determine if               S2       Screen Adjustment                              -             -
  service adjustments are required.                                                                                                Auto RF AGC                                    -             -
                                                                                                                                   Video Level (VIDEOL)                           7           0~7      Must be set to 7
1) How to enter the service mode using the user remote control.                                                                    RF AGC Delay (RFAGCD)                          *          0 ~ 63    Align RF AGC threshold
   



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