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TV / DVD Combination
CHASSIS : CN-091
Model : DDQ-20L6SCN
MODEL
TV STANDARD
POWER INPUT
POWER CONSUMPTION
TUNING RANGES
SOUND OUTPUT
SPEAKER
ANTENNA INPUT IMPEDANCE
AUXILIARY INPUT TERMINAL
AUXILIARY OUTPUT TERMINAL
INTERMEDIATE FREQUENCIES
REMOTE CONTROL
SPECIAL FUNCTION
DAEWOO ELECTRONICS Corp.
http : //svc.dwe.co.kr
TCN091BEFO
DDQ-20L6SCN
NTSC-M
AC 120V 60Hz
100W
Frequency Synthesizer(FS) Tuning System
TV
VHF(L) : CH2-CH6
UHF(H) : CH7-CH13
UHF
: CH14-CH69
CATV
VHF(L) : 5A, A, B, A-5-A-1
CH2-CH6
VHF(H) : C-W+11
CH7-CH13
UHF
: W+12-W+84
3W + 3W
8ohm 3W(NORNAL 3W, MAX 5W) x 2EA
75ohm Unbalanced
REAR PART : S-VHS
VIDEO, AUDIO(L,R)
SIDE PART : VIDEO, AUDIO(L,R)
REAR PART : VIDEO, AUDIO(L,R)
COAXIAL DIGITAL AUDIO
SIDE PART : EARPHONE
PICTURE IF CARRIER FREQUENCY : 45.75MHz
SOUND IF CARRIER FREQUENCY : 51.25MHz
COLOR SUB-CARRIER FREQUENCY : 3.58MHz
R-52E05
1) 3-LANGUAGE
2) WITH CAPTION
3) CH LABEL
4) V-CHIP
5) DYNAMIC SOUND
6) SURROUND
7) WAKE-UP/OFF TIMER
8) SLEEP TIMER
9) POWER RESTORE
10) COAXIAL DIGITAL AUDIO OUT
11) EARPHONE
Jan. 2004
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Table of Contents
Related Manuals for Daewoo DDQ-20L6SCN
Summary of Contents for Daewoo DDQ-20L6SCN
- Page 1 TCN091BEFO TV / DVD Combination CHASSIS : CN-091 Model : DDQ-20L6SCN MODEL DDQ-20L6SCN TV STANDARD NTSC-M POWER INPUT AC 120V 60Hz POWER CONSUMPTION 100W TUNING RANGES Frequency Synthesizer(FS) Tuning System VHF(L) : CH2-CH6 UHF(H) : CH7-CH13 : CH14-CH69 CATV VHF(L) : 5A, A, B, A-5-A-1...
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Page 2: Table Of Contents
T ABLE OF CONTENTS 1. SAFETY INSTRUCTION ......................... 2. SPECIFICATIONS ........................... 3. CIRCUIT BLOCK DIAGRAM ......................4. ALIGNMENT INSTRUCTIONS ......................4-1 . REMOTE CONTROL(R-52E05) ..................... 4-2 . SERVICE MODE ADJUSTMENTS ..................4-3 . ASSEMBLY ADJUSTMENTS ....................5. SCHEMATIC DIAGRAM ........................10 5-1 . -
Page 3: Safety Instruction
1. SAFETY INSTRUCTION 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 The lightning flash with arrowhead symbol,within your being liable for any resulting property damage or user injury. - Page 4 PRODUCT SAFETY SERVICING GUIDELINES FOR COLOR TELEVISION RECEIVERS 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...
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Page 5: Specifications
2. SPECIFICATION MODEL DDQ-20L6SCN T V STANDARD NTSC-M POWER INPUT AC 120V 60Hz POWER CONSUMPTION 100W TUNING RANGES Frequency Synthesizer(FS) Tuning System VHF(L) : CH2-CH6 UHF(H) : CH7-CH13 : CH14-CH69 CATV VHF(L) : 5A, A, B, A-5-A-1 CH2-CH6 VHF(H) : C-W+11... -
Page 6: Circuit Block Diagram
3. CIRCUIT BLOCK DIAGRAM... -
Page 7: Alignment Instructions
4. ALIGNMENT INSTRUCTIONS 4-1. REMOTE CONTROL (R-52E05) POWER button If you press the ON/OFF button in the front part of this product, power is DISPLAY button Operating status and MENU are displayed in a screen. SLEEP button You can set automatic POWER OFF. DVD/TV/AV button You can select input mode(TV ->... - Page 8 ALIGNMENT INSTRUCTIONS SEARCH button You can search the title, chapter and time. PLAY/PAUSE button F.R/SLOW or F.F/SLOW button You can search screen while playing back or forward. OPEN/CLOSE DISC TRAY OPEN/CLOSE button REPEAT button You can select REPEAT or RANDOM mode. (Repeat current title or chapter in DVD, or repeat current track or disc in VCD/CD) A-B button You can play the given sections (a defined period from A to B)
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Page 9: Service Mode Adjustments
ALIGNMENT INSTRUCTIONS 4-2. SERVICE MODE ADJUSTMENTS Follow the steps below whenever service adjustment is required. 1) How to enter the service mode using the user remote control -. Turn the set on. -. Direct the remote control to the reception window of TV. -. -
Page 10: Assembly Adjustments
ALIGNMENT INSTRUCTIONS 4-3. ASSEMBLY ADJUSTMENTS 1) SCREEN ADJUSTMENT(S2) -. Enter the service mode and select service adjustment S2. -. You can see the one horizontal line on the screen. -. Adjust the Screen Control Volume(located on FBT) so that the horizontal line onscreen may be disappeared. -. -
Page 11: Schematic Diagram
5. SCHEMATIC DIAGRAM 5-1 MAIN CIRCUIT DIAGRAM -10-... -
Page 12: Power Circuit Diagram
SCHEMATIC DIAGRAM 5-2 POWER CIRCUIT DIAGRAM -11-... -
Page 13: Exploded View
6. EXPLODED VIEW -12-... -
Page 14: Electrical Parts List
7. ELECTRICAL PA RTS LIST 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(Prats Price List) in Service information Center (http://svc.dwe.co.kr) Caution is safety component, so it must be used the same component. - Page 15 ELECTRICAL PA RTS LIST LOC PARTS CODE PARTS NAME DESCRIPTION REMARK LOC PARTS CODE PART NAME PART DESCRIPTION REMARK CC236 HCQK102JBA C CHIP CERA 50V CH 1000PF J 1608 RC271 HRFT330JBA R CHIP 1/10 33 OHM J 1608 CC237 HCQK102JBA C CHIP CERA 50V CH 1000PF J 1608 RC272...
- Page 16 ELECTRICAL PA RTS LIST LOC PARTS CODE PART NAME PART DESCRIPTION REMARK LOC PARTS CODE PART NAME PART DESCRIPTION REMARK C553 CEXF1C471V C ELECTRO 16V RSS 470MF (8X12)TP C563 CMXM2A153J C MYLAR 100V 0.015MF J (TP) C637 CEXF1E222V C ELECTRO 25V RSS 2200MF (16X25) TP C603 CEXF1C101V...
- Page 17 ELECTRICAL PA RTS LIST LOC PARTS CODE PART NAME PART DESCRIPTION REMARK LOC PARTS CODE PART NAME PART DESCRIPTION REMARK Q702 TKTC3198Y- KTC3198Y J008 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING Q704 TKTC3198Y- KTC3198Y J009 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING Q705 TKTC3198Y- KTC3198Y...
- Page 18 ELECTRICAL PA RTS LIST LOC PARTS CODE PART NAME PART DESCRIPTION REMARK LOC PARTS CODE PART NAME PART DESCRIPTION REMARK J068 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J127 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J069 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J128 85801065GY...
- Page 19 ELECTRICAL PA RTS LIST LOC PARTS CODE PART NAME PART DESCRIPTION REMARK LOC PARTS CODE PART NAME PART DESCRIPTION REMARK J191 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J281 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J192 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J282 85801065GY...
- Page 20 ELECTRICAL PA RTS LIST LOC PARTS CODE PART NAME PART DESCRIPTION REMARK LOC PARTS CODE PART NAME PART DESCRIPTION REMARK J358 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING R281 RD-4Z750J- R CARBON FILM 1/4 75 OHM J J359 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING R287 RD-AZ102J-...
- Page 21 ELECTRICAL PA RTS LIST LOC PARTS CODE PART NAME PART DESCRIPTION REMARK LOC PARTS CODE PART NAME PART DESCRIPTION REMARK R637 RD-AZ153J- R CARBON FILM 1/6 15K OHM J R754 RD-AZ102J- R CARBON FILM 1/6 1K OHM J R638 RD-AZ392J- R CARBON FILM 1/6 3.9K OHM J R756...
- Page 22 ELECTRICAL PA RTS LIST LOC PARTS CODE PART NAME PART DESCRIPTION REMARK LOC PARTS CODE PART NAME PART DESCRIPTION REMARK 00001 1K78R05—- IC REGULATOR KIA78R05API C838 CEXF1C102V C ELECTRO 16V RSS 1000MF (10X20) TP 0000A 4857026900 HEAT SINK AL EX C841 CEXF1C102V C ELECTRO...
- Page 23 ELECTRICAL PA RTS LIST LOC PARTS CODE PART NAME PART DESCRIPTION REMARK LOC PARTS CODE PART NAME PART DESCRIPTION REMARK E843 4856310300 EYE LET BSR T0.2 (R1.6) C402 CCXB2H102K C CERA 500V B 1000PF K (TAPPING) E844 4856310300 EYE LET BSR T0.2 (R1.6) C405 CCXB2H471K...
- Page 24 ELECTRICAL PA RTS LIST LOC PARTS CODE PART NAME PART DESCRIPTION REMARK LOC PARTS CODE PART NAME PART DESCRIPTION REMARK D807 DRGP15J—- DIODE RGP15J DO-204AC 600V 1.5A J811 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING D814 D1N4148—- DIODE 1N4148 (TAPPING) J812 85801065GY WIRE COPPER...
- Page 25 ELECTRICAL PA RTS LIST LOC PARTS CODE PART NAME PART DESCRIPTION REMARK LOC PARTS CODE PART NAME PART DESCRIPTION REMARK R808 RN-4Z2002F R METAL FILM 1/4 20.0K OHM F R863 RD-4Z273J- R CARBON FILM 1/4 27K OHM J R815 RN-AZ1003F R METAL FILM 1/6 100K OHM F R873...
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Page 26: Printed Circuit Board
7. PRINTED CIRCUIT BOARD 7-1 PCB MAIN -25-... -
Page 27: Pcb Power
PRINTED CIRCUIT BOARD 7-2 PCB POWER -26-... -
Page 28: Ic Description(U-Com : I701)
9. IC DESCRIPTION(U-COM : I701) 9-1. U-COM (I701) PIN ASSIGN SW-2 SW-1 DVD_SELECT RESET_DETECT -27- -27-... -
Page 29: Pin Discription
Input Select control Signal P14/PWM2 DVD-RESET(H) Reset DVD High : DVD Reset, Low : Normal MODE P15/PWM3 EEPROM_WR(H) DEAWOO(H) Remocon Option High : DAEWOO Format, Low : buyer Format P17/PWM SW-1 Input Select control Signal DVss VSS(-) 32.768 KHz X-TAL OSD OSCILLATE VDD(+) - Page 30 IC DESCRIPTION(U-COM : I701) PIN No PIN NAME TYPE DISCRIPTION REMARK P71/INT1 DVD_SELECT CHIP(DVD) SELECT P72/INT2 SJ ID(H) Check Input Signal in S-VHS JACK /T0IN Active HIGH Reference PAGE 6 P73/INT3 REMOCON IN REMOCON CONTROL Signal Input /T0IN SB LED(H) When Stand-by MODE When ON Timer Set When NO V-Sync.(fresh:500mSEC )
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Page 31: Chip Components Position(Pcb Main)
10. CHIP COMPONENTS POSITION(PCB MAIN) -30-... -
Page 32: Trouble Shooting Guide
11. TROUBLE SHOOTING GUIDE TROUBLE SHOOTING GUIDE APPLICATION : DDQ-20L6SCN(CN-091) MENU [A] TV PART (1) NO POWER (2) NO DEGAUSSING OPERATING (3) NO SEARCHING CHANNEL (4) NO INPUTMODE CHANGE (5) NO OSD (6) NO REMOCON OPERATING (7) NO PICTURE (8) VERTICAL DEFLECTION PART... -
Page 33: No Power
TROUBLE SHOOTING GUIDE (1) NO POWER F801(Fuse) CHECK D802 D802 CHKECK/CHANGE CHECK I800 #6-7 ohm test (moreX100Ω) I800 CHANGE Fuse CHANGE I800 #5 Voltage CHECK D802,R821,C804 CHKECK/CHANGE I800 #7 Waveform CHECK R809 CHECK/CHANGE D821 I810 Voltage CHKECK/CHANGE CHECK I701, RLY1 CHECK/CHANGE -32-... -
Page 34: No Degaussing Operating
TROUBLE SHOOTING GUIDE (2) NO DEGAUSSING OPERATING Coil Connection CHECK Connection check Q802 Operating CHECK? Q802 relation circuit check/CHANGE R802 CHECK ( 3 ohm ) R802 CHKECK/CHANGE PW501 1701 #41 PIN #5 PIN CHKECK/CHANGE CHECK DIE-GAUSSING COIL CHANGE -33-... -
Page 35: No Searching Channel
TROUBLE SHOOTING GUIDE (3) NO SEARCHING CHANNEL Tuner B+ U101 Voltage Voltage CHECK CHECK SDA,SCL SDA, SCL Circuit Operating CHECK CHECK U101 AGC Voltage CHECK Service DATA CHECK Service DATA U101 CHANGE Check/Setup -34-... -
Page 36: No Inputmode Change
TROUBLE SHOOTING GUIDE (4) NO INPUTMODE CHANGE I201, I202 B+ Voltage CHECK Voltage CHECK signal circuit INPUT signal CHECK CHECK I201, I202 I201 OUTPUT #3 signal CHECK/CHANGE CHECK U101 (Tuner) I201, I202 Voltage SW CHECK CHECK I701 #31,#32,#37 I501 CHECK/CHANGE CHECK/CHANGE -35-... -
Page 37: No Osd
TROUBLE SHOOTING GUIDE (5) NO OSD I701 #22,23, I701 #10,11 Service DATA 24 OUTPUT Oscilation CHECK/CHANGE CHECK CHECK #10,11 relation Circuit CHECK/CHANGE I701 #25 OSD BL circuit OUTPUT CHECK CHECK I501 #14,15, OSD Gain 16,17 INPUT CHECK CHECK -36-... -
Page 38: No Remocon Operating
TROUBLE SHOOTING GUIDE (6) NO REMOCON OPERATING REMOCON Battery Battery CHANGE CHECK I704 #1 I704 B+ (#2) OUTPUT CHECK/CHANGE CHECK I701 #34 Relation circuit OUTPUT CHECK waveform CHECK I701 CHECK/CHANGE -37-... -
Page 39: No Picture
TROUBLE SHOOTING GUIDE (7) NO PICTURE T402 Operating (7-1) CHECK T402 Voltage CHECK I501 #27 H-DRV relation Q401 waveform waveform check CHECK circuit CHECK I501 I501 #25 Voltage DY CONNECTION CHECK/CHANGE CHECK CHECK Q402 I502 CHECK/CHANGE Relation circuit CHECK (7-1) CHECK/CHANGE D890 relation circuit P902 #1... -
Page 40: Vertical Deflection Part
TROUBLE SHOOTING GUIDE (8) VERTICAL DEFLECTION PA RT I501 #23 I501 #23relation Drive Pulse circuit check CHECK I301 B+ D380 relation circuit Voltage Check CHECK DY Connection CHECK/CHANGE CHECK P801 #5 Pulse C302 waveform check CHECK/CHANGE Q704 relation circuit Q704 waveform CHECK CHECK Relation circuit... -
Page 41: Picture Part
TROUBLE SHOOTING GUIDE (9) PICTURE PA RT NO RF PICTURE I501 #46 #46 relation circuit waveform check CHECK I501 #42 MOVE (4) waveform check (Q207 relation circuit) I701 relation circuit I501 #17 signal CHECK CHECK Q902-Q907 CHECK/CHANGE NO AV PICTURE JP503/PW201 I201 #5,7 signal CHECK... -
Page 42: Color Siganl Part
TROUBLE SHOOTING GUIDE (10) COLOR SIGNAL PA RT I804 relation circuit I203 #16 I203 B+ waveform check #6 check check/change I502 CHECK/CHANGE #32 relation circuit I501 #32 waveform check CHECK Service data Service Color CHECK/SETUP CHECK I501 CHECK/CHANGE -41-... -
Page 43: Sound Part
TROUBLE SHOOTING GUIDE (11) SOUND PA RT I804 output Level I601 #24,25 I601 #16 signal check Voltage5V check (6V) check I701 I601 #7,8 signal CHECK/CHANGE CHECK I501 I601 #47 SIF CHECK/CHANGE signal check I601 CHECK/CHANGE I602 I602 out signal CHECK/CHANGE #1, 14 check MOVE(9) -42-... -
Page 44: No Dvd Operating
TROUBLE SHOOTING GUIDE (12) NO DVD OPERATING NO DVD OPERATING PA890 wire WIRE CHANGE CHECK PW590,591 CABLE Connecntion CHANGE CHECK MODULE MODULE CHANGE CHECK DVD MODULE I202 #7 signal CHANGE CHECK Relation circuit CHECK -43-...