Service Manuals, User Guides, Schematic Diagrams or docs for : Daewoo Сhassis SC SC-110 SC-110

<< Back | Home

Most service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.




Image preview - the first page of the document
SC-110


>> Download SC-110 documenatation <<

Text preview - extract from the document
                                                                   S/M No. : SC110N-101




Service Manual
 Relese 1
DIGITAL HDTV

 CHASSIS : SC-110


Model : DSC-30W60N




                         DSC-30W60N                                                R-V3


   Specifications
                             Power Requirement       AC 120V, 60Hz
                             Power Consumption       250W (1.7W in standby)
                             Dimensions(W/H/D)       890 x 573 x 560 mm
                             Weight                  64kg
         General
                             Antenna                 Two 75 ohm external input terminals for UHF/VHF/Cable
                                                     One 75ohm external output terminal for Cable

                             RF Band Coverage        VHF 2 ~ 13
                                                     UHF 14 ~ 69
                                                     CATV 1, 14 ~ 125



                             Screen Size             32 inches Pure Flat 16:9 Aspect ratio
         Picture             Display Format          1920 x 1080i (Digital)
                                                     Upconversion to 1080i with line doubling (NTSC)
                             Horizontal Resolution   800 Lines




                             Digital Audio           Dolby Digital AC-3 / Pro logic
          Sound              NTSC Audio              Multi-CH TV Stereo (MTS) / Second Audio Program (SAP)
                             Audio Power             8W / ch (Main L/R, Woofer), 5W / ch (Center, SL, SR)




                             A/V In                  4 each (Video / L / R)
                             S-Video In              2 each
                             HD Component Video In   2 each ( Y/ Pb / Pr, R / G / B )
Number of Inputs / Outputs   HD Component Audio In   1 each ( L / R / SL / SR / Center / Woofer )
                             Digital Audio In        2 each ( Coaxial / Optical )
                             Digital Audio Out       2 each ( Coaxial / Optical )
                             External Speaker Out    1 each ( SL / SR / Woofer)




   DAEWOO ELECTRONICS CO., LTD.
    http : //svc.dwe.co.kr                                                        Mar. 2000
  TABLE OF CONTENTS
1. Product Safety ................................................................................................................................2
2. Specifications .................................................................................................................................4
3. Reote Control Overview.................................................................................................................5
4. Limited Warranty ............................................................................................................................7
5. Service Mode ..................................................................................................................................8
6. General Adjustment .......................................................................................................................11
7. Special Adjustment (When replacing new circuit boards) .........................................................17
8. Troubleshooting Charts.................................................................................................................18
9. Parts List .........................................................................................................................................45
10. Circuit Digram...............................................................................................................................59
    10-1. Connection Diagram.................................................................................................................59
    10-2. Signal Flow Diagram ................................................................................................................60
    10-3. Power Circuit ............................................................................................................................61
    10-4. Main Circcuit.............................................................................................................................62
    10-5. Video 1 Circuit ..........................................................................................................................63
    10-6. Video2 Circuit ...........................................................................................................................64
    10-7. Audio Circuit .............................................................................................................................65
    10-8. Com-Filter Circuit .....................................................................................................................66
    10-9. VM Circuit................................................................................................................................. 67
    10-10. Blanking Circuit ......................................................................................................................68
    10-11. Jack A/V, Control, LED Circuit ............................................................................................... 68
    10-12. CRT Circuit.............................................................................................................................70
11. Exploded View ..............................................................................................................................71
12. PCB Layout ...................................................................................................................................72


                                                                                 1
1.PRODUCT SAFETY SERVICING GUIDELINES FOR COLOR TELEVISION RECEIVERS

CAUTION : Do not attempt to modify this product in any way. Unau-             GRAPHIC SYMBOLS :
thorized modifications will not only void the warranty, but may lead to
your being liable for any resulting property damage or user injury.                                 The lightning flash with arrowhead symbol,
Service work should be performed only after you are thoroughly                                      within an equilateral triangle, is intended to alert
familiar with all of the following safety checks and servicing guide-                               the service personnel to the presence of uninsu-
lines. To do otherwise, increases the risk of potential hazards and                                 lated "dangerous voltage" that may be of suffi-
injury to the user.                                                                                 cienty magnitude to constitute a risk of electric
                                                                                                    shock.
SAFETY CHECKS
                                                                                                    The exclamation point within an equilateral tri-
After the original service problem has been corrected, a check should                               angle is intended to alert the service personnel
be made of the following:                                                                           to the presence of important safety information
                                                                                                    in service literature.
SUBJECT : FIRE & SHOCK HAZARD
                                                                                                    Fuse symbol is printed on pcb adjacent to the
1. Be sure that all components are positioned in such a way as to                                   fuse, with "RISK OF FIRE REPLACE FUSE AS
   avoid possibility of adjacent component shorts. This is especially                               MARKED". The symbol is explained in the ser-
   important on those chassis which are transported to and from the                                 vice manual with the following wording or equiv-
   repair shop.                                                                                     alent.
2. Never release a repair unless all protective devices such as insula-
   tors, barriers, covers, shields, strain reliefs, and other hardware        CAUTION : FOR CONTINUED PROTECTION AGAINST FIRE
   have been reinstalled per original design.                                 HAZARD, REPLACE ONLY WITH SAME TYPE (6.3A, 125V)" and
3. Soldering must be inspected to discover possible cold solder joints,       "ATTENTION: AFIN D'ASSU UNE PROTECTION PERMANENTE
   frayed leads, damaged insulation (including A.C. cord), solder             CONTRE LES RISQUES D'INCENDIE, REMPLACER UNIQUE-
   splashes or sharp solder points. Be certain to remove all loose for-       MENT PAR UN FUSIBLE DE MEME TYPE ET DE "6.3A, 125V".
   eign particals.
4. Check for physical evidence of damage or deterioration to parts            SUBJECT : X-RADIATION
   and components, and replace if necessary follow original layout,
   lead length and dress.                                                     1. Be sure procedures and instructions to all service personnel cover
5. No leads or components should touch a receiving tube or a resistor            the subject of X-rays in current T.V. receivers is the picture tube.
   rated at 1 watt or more. Lead tension around protruding metal sur-            However, this tube does not emit X-rays when the high voltage is
   faces must be avoided.                                                        at the factory specified level. The proper value is given in the appli-
6. All critical components such as fuses, flameproof resistors, capaci-          cable schematic. Operation at higher voltages may cause a failure
   tors, etc. must be replaced with exact factory types. Do not use              of the picture tube or high voltage supply and, under certain cir-
   replacement components other than those specified or make                     cumstances, may produce radiation in excess of desirable levels.
   unrecommended circuit modifications.                                       2. Only factory specified C.R.T. anode connectors must be used.
7. After re-assembly of the set always perform an A.C. leakage test              Degaussing shields also serve as X-ray shield in color sets.
   on all exposed metallic parts of the cabinet, (the channel selector           Always re-install them.
   knob, antenna terminals, handle and screws) to be sure the set is          3. It is essential that the serviceman has available an accurate and
   safe to operate without danger of electrical shock. Do not use a              reliable high voltage meter. The calibration of the meter should be
   line isolation transformer during this test. Use an A.C. voltmeter,           checked perio - dically against a reference standard. Such as the
   having 5000 ohms per volt or more sensitivity, in the following               one available at your distributor.
   manner : connect a 1500 ohm 10 watt resistor, paralleled by a 15           4. When the high voltage circuitry is operating properly there is no
   mfd. 150V A.C. type capacitor between a known good earth                      possibility of an X-radiation problem. Every time a color chassis is
   ground (9water pipe, conduit, etc.) and the exposed metallic parts,           serviced, the brightness should be run up and down while monitor-
   one at a time. Measure the A.C. voltage across the combination of             ing the high voltage with a meter to be certain that the high voltage
   1500 ohm resistor and 0.15 MFD capacitor. Reverse the A.C. plug               does not exceed the specified value and that it is regulating cor-
   and repeat A.C. voltage measurements for each exposed metallic                rectly. We suggest that you and your service organization review
   part. Voltage measured must not exceed 0.75 volts R.M.S. This                 test procedures so that voltage regulation is always checked as a
   corresponds to 0.5 milliamp A.C. Any value exceeding this limit               standard servicing procedure. And that the high voltage reading be
   constitutes a potential shock hazard and must be corrected imme-              recorded on each customer's invoice.
   diately.                                                                   5. When troubleshooting and making test measurements in a receiver
                                                                                 with a problem of excessive high voltage, avoid being unnecessarily
                                                                                 close to the picture tub eand the high voltage compartment.
                                A.C. VOLTMETER
                                                                                 Do not operate the chassis longer than is necessary to locate the
                                                                                 cause of excessive voltage.
                                                                              6. Refer to HV, B+and Shutdown adjustment procedures described in
                                                                                 the appropriate schematic and diagrams(where used).


                                     0.15 uF
          Good earth ground,
          such as the water
                                   1500   OHM   Place this probe
          pipe, conduit, etc.
                                                on each exposed
                                    10WATT      metal part.




                                                                          2
SUBJECT : IMPLOSION                                                            4. Wall and shelf mounted installations using a commercial mounting
                                                                                  kit, must follow the factory approved mounting instructions. A
1. All direct viewed picture tubes are equipped with an integral implo-           receiver mounted to a shelf or platform must retain its original
   sion protection system, but care should be taken to avoid damage               feet(or the equivalent thickness in spacers) to provide adequate
   during installation. Avoid scratching the tube. If scratched, replace          are flow across the bottom, bolts or screws used for fasteners
   it.                                                                            must not touch and parts or wiring. Perform leakage test on cus-
2. Use only recommended factory replacement tubes.                                tomized installations.
                                                                               5. Caution customers against the mounting of a receiver on sloping
SUBJECT : TIPS ON PROPER INSTALLATION                                             shelf or a tilted position, unless the receiver is properly secured.
                                                                               6. A receiver on a roll-about cart should be stable on its mounting to
1. Never install any receiver in closed-in recess, cubbyhole or closely           the cart. Caution the customer on the hazards of trying to roll a cart
   fitting shelf space over, or close to heat duct, or in the path of             with small casters across thresholds or deep pile carpets.
   heated air flow.                                                            7. Caution customers against the use of a cart or stand which has not
2. Avoid conditions of high humidity such as : Outdoor patio installa-            been listed by underwriters laboratories, inc. For use with their
   tions where dew is a factor. Near steam radiators where steam                  specific model of television receiver or generically approved for
   leakage is a factor, etc.                                                      use with T.V.'s of the same or larger screen size.
3. Avoid placement where draperies may obstruct rear venting. The
   customer should also avoid the use of decorative scarves or other
   coverings which might obstruct ventilation.




                                                                           3
 2. Specification


General
  Power Requirement          AC 120V, 60Hz
  Power Consumption          250W (1.7W in standby)
  Dimensions(W/H/D)          890 x 573 x 560 mm
  Weight                     64kg
  Antenna                    Two 75 ohm external input terminals for UHF/VHF/Cable
                             One 75ohm external output terminal for Cable
  RF Band Coverage           VHF 2 ~ 13
                             UHF 14 ~ 69
                             CATV 1, 14 ~ 125



Picture
  Screen Size                32 inches Pure Flat 16:9 Aspect ratio
  Display Format             1920 x 1080i (Digital)
                             Upconversion to 1080i with line doubling (NTSC)
  Horizontal Resolution      800 Lines



Sound
  Digital Audio              Dolby Digital AC-3 / Pro logic
  NTSC Audio                 Multi-CH TV Stereo (MTS) / Second Audio Program (SAP)
  Audio Power                8W / ch (Main L/R, Woofer), 5W / ch (Center, SL, SR)



Number of Inputs / Outputs
  A/V In                     4 each (Video / L / R)
  S-Video In                 2 each
  HD Component Video In      2 each ( Y/ Pb / Pr, R / G / B )
  HD Component Audio In      1 each ( L / R / SL / SR / Center / Woofer )
  Digital Audio In           2 each ( Coaxial / Optical )
  Digital Audio Out          2 each ( Coaxial / Optical )
  External Speaker Out       1 each ( SL / SR / Woofer)




                                                        4
33. Remote control overview
                                  The remote control has the following functions:
                                  1. Power button
                                     Press to turn the HDTV(and other equipment) on
                                     and off.

                                  2. MODE buttons
                                     Press to select which equipment you wish your remote
                                     control to operate:
                                     * SAT(satelite)
                                     * CATV (cable box)
                                     * VCR
                                     * TV
                                     The Mode button you press will light up in red.

                                  3. MENU button
                                     Press once to display the HDTV menus. Press again to
                                     make the menus disappear.

                                  4. SEL ( Select) button
                                     Press to select items on the HDTV menus.

                                  5. Arrow buttons
                                     Press to navigate through the HDTV menus.

                                  6. STAT (Channel Station) button
                                     Press to quickly select chammels to watch on your
                                     HDTV.

                                  7. VOL (Volume) buttons
                                     press to raise and lower the volume on your HDTV.

                                  8. Number buttons
                                     Press to directly select channels or to enter the numbers
                                      in the menus.

                                  9. INFO (Information) button
                                      Press to see the channel banner that provides information
                                     while viewing your HDTV.

                                  10. V MODE (Video Mode) button
                                     Press to select a video mode : Normal, Dynamic,
                                    Cinema or Customer.




                              5
  Remote control overview



11. SOUND button                                                24. PREV (Previous) button
    Press to select a sound option : Mono, Stereo, or Secondary     Press to back up one menu at a time in the HDRV menus or to
   Audio Programming (SAP). When you tune to a digital              return to the previous channel.
   channel, press to select various languages.
                                                              25. GUIDE button
12. SLEEP TIMER button                                            Press this button to see the HDTV Program Guide.
    Press to select the time before the HDRV turns off: 30
    minutes, 60 minutes, 90 minutes, or 120 minutes.          26. MUTE button
                                                                  Press to mute the HDTV sound.
13. CLOSED CAPTION button
    Press to turn closed captions on and off.                 27. TV / VIDEO button
                                                                  Press to view components you have connected to the HDTV.
14. FF (Fast Forward) button.                                     Press this button repeatedly to display:
    Press to fast forward a videocassette.                        * TV mode
                                                                  * HD comp (HD Component Video)
15. PLAY button                                                   * Video 1
    Press to play a videocassette.                                * Video 2
                                                                  * Video 3
16. PAUSE button                                                  * Video 4
    Press to pause a VCR.

17. REC(Record) button
    Press to record a videotape.

18. STOP button
    Press to stop a VCR.

19. REW (Rewind) button
    Press to rewind a videocassette.

20. SCREEN MODE button
    Press to select how to view your HDTV:
    Normal or Full.

21. ADD / ERASE button
    Press to add and erase channels on your HDTV.

22. 100 button
    Press to select cable channels over 100 on TV or DSS
   broadcasts.

23. CH (Chnnel) buttons
    Press to select channels.



                                                                6
 4. Limited Warranty
Daewoo Electronics Corporation of America Inc. (also known as DECA) warrants this product to be free from defects in material
and workmanship and agrees to remedy any such defect.

This warranty covers 3 years labor and 3 years parts from the date of original purchase.

This warranty applies only to product purchased from authorized DECA dealer and used within the boundaries of U.S.A.

This warranty does not apply to product that has been improperly installed, subjected to usage for which the product was not
designed, misused or abused, damaged during transportation, or which has been altered in any way that affects the reliability or
detracts from its performance.

How you get warranty service
Warrany service can only be provided by an authorized DECA service center. For the closest authorized service center to you,
please contact your Dealer. In order to receive warranty service you must provide the authorized service center with a copy of proof
of purchase, signifying the date of purchase and the name of the Dealer from whom you purchased the product.

Statutory warranities
The purchase may have rights under existing provincial or federal laws, and where any terms of this warranty are prohibited by
such laws, they ard deemed null and void, but the remainder of the warranty shall remain in effect.

If you require further assistance, please call:

1-800-DAEWOO-8




                                                                  7
 5. Service Modes
1. Entering to Service Mode
  1) With the user remote control
     Press the button in the following order.


          1          MUTE               SELECT               MUTE                   POWER       1,2,3, ... 9
                                                                                                          .,


  2) With the service remote control


      S1 : Heat Run                    S2 : Screen Voltage               S3 : Sound Controls


      S4 : Video Controls              S5 : Geometry                     S7 : White Balance


      S8 : Sub Brightness              S9 : Software Version             S10: Factory Setting



2. Function of each service mode
  1) S1 : Heat Run mode.



                                                    White Pattern




  2) S2 : Screen Voltage Control mode
    The vertical deflection is down, and a horizontal line appears on the screen.
  3) S3 : Sound Controls mode


      



◦ Jabse Service Manual Search 2024 ◦ Jabse PravopisonTap.bg ◦ Other service manual resources online : FixyaeServiceinfo