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Service Manual
Color Television
CHASSIS : CN-220N
Model : DTQ - 20D5FSN / FSPN
DTQ - 20D4SSPS / SSFN / SCN
DTQ - 20D4ASN / ASPN / SSN / SSPN
DTQ - 14D4SSN / SSPN / SSFN
SPECIFICATIONS
MODEL
DTQ-20D5FSN
ITEM
TV STANDARD
NTSC-M
POWER INPUT
120V 60HZ
POWER CONSUMPTION
84W
TUNING SYSTEM
Frequency Synthesizer (FS) Tuning System
VHF : 2 ~ 13 (12)
TUNING RANGES
UHF : 14 ~ 69 (56)
A~W, A- 5 ~ A-1, W + 1 ~ W + 84
SOUND OUTPUT
5W + 5W
SPEAKER
8 ohm 5W x 2EA
ANTENNA INPUT
75 ohm Unbalanced
IMPEDANCE
AUXILIARY INPUT
Front : Video, Audio, Earphone
TERMINAL
Rear: Video, Audio, (R,L)
Picture IF Carrier Frequency : 45.75 MHZ
INTERMEDIATE
Sound IF Carrier Frequency : 41.25 MHZ
FREQUENCIES
Color Sub-Carrer Frequency : 3.579545 MHZ
REMOTE CONTROL
R - 40
AV only PIP
ICON MENU TYPE
STEREO / SAP
SPECIAL FUNCTIONS
3 - Language OSD
with Caption
DAEWOO ELECTRONICS CO., LTD
http : //svc.dwe.co.kr
S/M No. : TCN220NTEF1
DTQ-20D5FSPN
20D4SSPS
220V 60HZ
220V 60HZ
ICON MENU TYPE
STEREO / SAP
3 - Language OSD
with Caption
Apr. 2002
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Table of Contents
Related Manuals for Daewoo DTQ - FSPN
Summary of Contents for Daewoo DTQ - FSPN
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Page 1: Service Manual
R - 40 AV only PIP ICON MENU TYPE ICON MENU TYPE STEREO / SAP STEREO / SAP 3 - Language OSD SPECIAL FUNCTIONS 3 - Language OSD with Caption with Caption DAEWOO ELECTRONICS CO., LTD Apr. 2002 http : //svc.dwe.co.kr... -
Page 2: Table Of Contents
TABLE OF CONTENTS SAFETY INSTRUCTION ........................2 SPECIFICATIONS ..........................3 CIRCUIT BLOCK DIAGRAM ......................5 ALIGNMENT INSTRUCTION ......................6 Your Remote Control ........................6 Service Mode Adjustment ......................... 7 Assembly Adjustment ........................8 SCHEMATIC DIAGRAM ........................12 EXPLODED VIEW ..........................13 PRINTED CIRCUIT BOARD ...................... -
Page 3: Safety Instruction
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”... -
Page 4: Specifications
SPECIFICATIONS CN-220N Chassis (Stereo Model) MODEL DTQ-20D5FSN DTQ-20D5FSPN DTQ-20D4SSPS ITEM TV STANDARD NTSC-M POWER INPUT 120V 50 / 60HZ 220V 50 / 60HZ 220V 50 / 60HZ POWER CONSUMPTION TUNING SYSTEM Frequency Synthesizer (FS) Tuning System VHF : 2 ~ 13 (12) TUNING RANGES UHF : 14 ~ 69 (56) A~W, A- 5 ~ A-1, W + 1 ~ W + 84... - Page 5 SPECIFICATIONS CN-220N Chassis (Mono Model) MODEL DTQ-14D4SSN DTQ-14D4SSPN DTQ-14D4SSFN DTQ-20D4SCN DTQ-20D4ASN DTQ-20D4ASPN DTQ-20D4SSFN ITEM DTQ-20D4SSN DTQ-20D4SSPN TV STANDARD NTST-M 120V 50 / 60HZ 220V 50 / 60HZ 90-260V 50 / 60HZ 120V 50 / 60HZ POWER INPUT 84W (20"), 70W (14") POWER CONSUMPTION Frequency Synthesizer (FS) Tuning System TUNING SYSTEM...
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Page 6: Circuit Block Diagram
CIRCUIT BLOCK DIAGRAM... -
Page 7: Alignment Instruction
ALIGNMENT INSTRUCTIONS Your Remote Control 1. POWER Use this button to turn your TV on or off. 2. 0 - 9 Use these buttons to change channels. 3. MUTE Use to turn the TV’s sound on and off. POWER 4. DISPLAY Use this buttons to display the channel number and status. -
Page 8: Service Mode Adjustment
ALIGNMENT INSTRUCTIONS SERVICE MODE ADJUSTMENTS Follow the steps below whenever service adjustment is required. See Table- A and Table- B to determine if service adjustments are required. 1) How to enter the service mode using the user remote control. · Turn the set on. ·... -
Page 9: Assembly Adjustment
ALIGNMENT INSTRUCTIONS Table-B DATA MODE ADJUSTMENT ITEMS REMARKS INITIAL RANGE Screen Adjustment Auto RF AGC Video Level (VIDEOL) 0 ~ 7 Must be set to 7 RF AGC Delay (RFAGCD) 0 ~ 63 Align RF AGC threshold FM Level (FM.LEV) 15(20) 0 ~ 31 Must be set to 15(Mono), 20(ST) - Page 10 ALIGNMENT INSTRUCTIONS 2) FOCUS ADJUSTMENT · Turn in a local station and adjust the Focus Control knob (located on FBT) for best picture details at high light condition. 3) RF AGC DELAY ADJUSTMENT (S5) · Receive a good local channel. ·...
- Page 11 ALIGNMENT INSTRUCTIONS 4-3. Vertical Size Adjustment · Select “V.SIZE” item, adjust “V.SIZE” data value to proper vertical size as follows. 5) WHITE BALANCE ADJUSTMENT(S8) · Receive a good local channel. · Enter the service mode and select service adjustment S8. ·...
- Page 12 ALIGNMENT INSTRUCTIONS · Select Subbrightness item, adjust Subbrightness data value to obtain normal brightness level. · Press the DISPLAY button to memorize the data. CONTRAST · Fixed value = 10 TINT · Fixed value = 27 COLOR · Fixed value = 15 7) FACTORY OUTGOING MODE (S12 : FACT) ·...
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Page 14: Exploded View
EXPLODED VIEW... - Page 15 EXPLODED VIEW...
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Page 16: Printed Circuit Board
PRINTED CIRCUIT BOARD... -
Page 17: Service Parts List
SERVICE PARTS LIST is a recommendable part for stock. Caution is safety component, so it must be used the same component. PART NAME PART DESCRIPTION REMARK PART NAME PART DESCRIPTION REMARK ZZ100 TRANSMITTER REMOCON R-40C03 C804 C ELECTRO 450V LHS 150MF (25X40) ZZ110 ACCESSORY AS DTQ-20D5FSP C805... - Page 18 SERVICE PARTS LIST PART NAME PART DESCRIPTION REMARK PART NAME PART DESCRIPTION REMARK Z501 FILTER CERA XT 4.5MB CC756 C CHIP CERA 50V CH 220PF J 2012 ZZ200 PCB CHIP MOUNT B AS DTQ-20D5FSPN CC757 C CHIP CERA 50V X7R 0.033MF K 2012 CC151 C CHIP CERA 50V X7R 0.01MF K 2012 CC758 C CHIP CERA...
- Page 19 SERVICE PARTS LIST PART NAME PART DESCRIPTION REMARK PART NAME PART DESCRIPTION REMARK RC525 R CHIP 1/10 1K OHM J 2012 RC756 R CHIP 1/10 4.7K OHM J 2012 RC526 R CHIP 1/10 1.3K OHM J 2012 RC758 R CHIP 1/10 4.7K OHM J 2012 RC530 R CHIP 1/10 560 OHM J 2012...
- Page 20 SERVICE PARTS LIST PART NAME PART DESCRIPTION REMARK PART NAME PART DESCRIPTION REMARK C820 C ELECTRO 160V RSS 100MF (16X25) TP E903 EYE LET BSR T0.2 (R1.6) C882 C CERA AC U/C/V 2.5KV 4700PF TP P601 CONN WAFER YW025-04 (STICK) C883 C CERA AC U/C/V 2.5KV 4700PF TP...
- Page 21 SERVICE PARTS LIST PART NAME PART DESCRIPTION REMARK PART NAME PART DESCRIPTION REMARK C519 C ELECTRO 50V RSS 0.47MF (5X11) TP Q704 KTA1266Y (TP) C520 C ELECTRO 50V RSS 1MF (5X11) TP Q705 KTA1266Y (TP) C525 C ELECTRO 50V RSS 1MF (5X11) TP Q706 KSC 945C-Y (TAPPING) C551...
- Page 22 SERVICE PARTS LIST PART NAME PART DESCRIPTION REMARK PART NAME PART DESCRIPTION REMARK D822 DIODE ZENER ZY160 J220 WIRE COPPER AWG22 1/0.65 TIN COATING 0.05 D831 DIODE ZENER UZ-8.2BM J221 WIRE COPPER AWG22 1/0.65 TIN COATING 0.05 J222 WIRE COPPER AWG22 1/0.65 TIN COATING 0.05 D888...
- Page 23 SERVICE PARTS LIST PART NAME PART DESCRIPTION REMARK PART NAME PART DESCRIPTION REMARK J605 WIRE COPPER AWG22 1/0.65 TIN COATING 0.05 L806 COIL BEAD HC-3550 J607 WIRE COPPER AWG22 1/0.65 TIN COATING 0.05 L807 COIL BEAD HC-3550 J608 WIRE COPPER AWG22 1/0.65 TIN COATING 0.05 L888...
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Page 24: The Different Parts List
DIFFERENT PARTS LIST 1. 14" Different parts list... - Page 25 DIFFERENT PARTS LIST...
- Page 26 DIFFERENT PARTS LIST...
- Page 27 DIFFERENT PARTS LIST...
- Page 28 DIFFERENT PARTS LIST...
- Page 29 DIFFERENT PARTS LIST...
- Page 30 DIFFERENT PARTS LIST 1. 20" Different parts list...
- Page 31 DIFFERENT PARTS LIST...
- Page 32 DIFFERENT PARTS LIST...
- Page 33 DIFFERENT PARTS LIST...
- Page 34 DAEWOO ELECTRONICS CO., LTD 686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA TELEX : DWELEC K28177-8 CABLE : “DAEWOOELEC”...
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Page 35: Ic Description
APPENDIX IC DESCRIPTION U-COM(I701) TV ONLY (H) POWER ON(H) CABLE (H) ST / MONO AUDIO MUTE(H) P13/PWM1 AKB WHITE BLUE BACK P14/PWM2 SOUND RESET H.OUT P15/PWM3 ON(L)/OFF(H) AUTO TINT POWER ON P17/PWM ST-BY(H) P73/INT3/TOIN REMOCON IN P72/INT2/TOIN P71/INT1 P70/INT0 KEY IN P84/AN4 P63/SCLK1 T-CLOCK... - Page 36 APPENDIX IC DESCRIPTION 1. Abstract. This specification is 1-Tuner Mono Model for North/South America, CCD 1-Chip MICOM LC863228A. It is developing software specification for tuning only NTSC and 3 system TV F/S. * 3 System : NTSC-M, PAL-M, PAL-N. 2. H/W Outline. 1) ROM : 28,672 x 8bits.tsc : 15,872 x 8 bits for CGROM.
- Page 37 APPENDIX IC DESCRIPTION 3) On Screen Displays function is interior designed. 4) Package. : 42 PIN SDI P. : I 2 C Bus. 5) Tuner (Pre-scaler.) /PLL IC : TAU 6014-S(SIEMENS). 6) Remocon. : The IC of Transmission (MITSUBISHI M50560) 7) E 2 PROM.
- Page 38 APPENDIX IC DESCRIPTION - Auto Power On Function.(Power Restore function in the Special Menu) - Heat Run Function. --- OSD White Back-Ground - Sleep Timer. - Wake Up Time Function. - Off Time Function. - Remote Reception & Control. - Auto Tint. - Power Restore.
- Page 39 -High(DC_5V):The only TV. (Option) -Low(DC_0V):Line.(Videl) Reception -High(DC_5V):Cable. (Option) -Low(DC_0V):Air. Audio -High(DC_5V):Mono.. (Option) -Low(DC_0V):Stereo. P13/ Remote -High(DC_5V):Mishubishi. PWM1 (Option) -Low(DC_0V):Daewoo(Only at Factory) Blue Back -High(DC_5V):No Blue Back. P14/PWM2 (Option) -Low(DC_0V):Blue Back. -Output P15/ Option -High(DC_5V):V-Chip. Format. PWM3 (V-Chip) -Low(DC_0V):No V-Chip. -CMOS/Nch Option -High(DC_5V):Auto Tint.
- Page 40 APPENDIX IC DESCRIPTION Terminal Name Explanation Remarks -16 pin is a spare pin. -13 pin to 16 pin. -4 bit input/output port, Nch-OD output. P87 / AN7 SPARE A/D -Input or output can be specified for each bit. -Other function. .AD converter input port (4 lines) -Reset terminal.
- Page 41 APPENDIX IC DESCRIPTION Terminal Name Explanation Remarks P70 / INT0 Sound Input - 4-bit input/output port. - Input or output can be specified for each bit. P71 / INT1 - #31 : Only Cn-220, ITT(MSP) P72 / INT2 SD In Low : Front Mask/Mono, High : Back/stero TO IN -Other function.
- Page 42 APPENDIX IC DESCRIPTION I101 DCT814(LA76814) : IC VIDEO PROCESSOR AUDIO OUT SIF INPUT FM OUTPUT SIF APC FILTER PIF AGC SIF OUTPUT RF AGC OUT EXT. AUDIO INPUT PIF INPUT1 VCO FILTER PIF INPUT2 VCO COIL1 IF GND VCO COIL2 IF VCC APC FILTER FM FILTER...
- Page 43 APPENDIX IC DESCRIPTION ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit Supply Voltage Output Peak Current (inernally limited) Ptot Total Power Dissipation (Tcase=70oC) Operationg Temperature 0 to 70 Tstg, Tj Storage and Junction Temperature -40 to + 150 THERMAL DATA Symbol Description Value Unit...
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Page 44: Troubleshooting Guide
APPENDIX TROUBLESHOOTING GUIDE 1. NO POWER Check Check F801(125V 4A) D881~D884 2A05G F801 R801 PCW1 L801 Check R801(7W 2.2) Q804 TO I101 #34 C819 D807 Check Voltage 133V Check L807 R814 waveform 133V C804 C814 C820 R802 L811 TUNER D808 R813 Check L806... -
Page 45: No Picture
APPENDIX TROUBLESHOOTING GUIDE 2. NO PICTURE NG : GO to the figure c Check the waveform of I101 #46 OK : Go the figure d Check the voltages U102 SF101 IF OUT TUNER SAW FILTER T-DATA T-CLOCK Check clock/data signal Check #29 #30 IF AGC voltage... -
Page 46: No Sound
APPENDIX TROUBLESHOOTING GUIDE 3. NO SOUND NG : Go to the figure e Check audio output signal of I101 #1 OK : Go to the figure f 3-1. CN-220N CHASSIS U102 SF101 IF OUT TUNER SAW FILTER T-DATA T-CLOCK Check #29 #30 IF AGC voltage Check... - Page 47 APPENDIX TROUBLESHOOTING GUIDE 3-2. CN-220N CHASSIS U102 SF101 IF OUT TUNER SAW FILTER T-DATA T-CLOCK Check #29 #30 IF AGC voltage Check I701 SIF output signal Check MICOM IF Vcc (5V) I101 If no signal, then change I101 #11 #12 Check SIF input signal XC701...
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Page 48: Ch Don't Stop
APPENDIX TROUBLESHOOTING GUIDE 4. CH DON’T STOP NG : Loss of signal or weak signal Check the input signal conditions OK : Go to the figure g Check 5V/33V LINE U102 SF101 IF OUT TUNER SAW FILTER T-DATA T-CLOCK AGC IN C103 #29 #30 RF AGC OUTPUT... -
Page 49: No Color
APPENDIX TROUBLESHOOTING GUIDE 5. NO COLOR Check Check C.V.S waveform the voltage composite video in Video/Chroma/Deflection Vcc Check the crystal Check the voltage I101 X502 RGB Vcc (9V) R OUT G OUT B OUT Check R/G/B signal 6. NO VERTICAL DEFLECTION Check the voltage Check... -
Page 50: No On-Screen Display
APPENDIX TROUBLESHOOTING GUIDE 7. NO ON-SCREEN DISPLAY Check the signal (60Hz) V.SYNC IN Check I701 clock/data signal H.SYNC IN MICOM I101 OSD R Check OSD G the signal (15,734Hz) OSD B BLANK #11 #12 XC701 32.768KHz Check ST-BY OSD R/G/B/BLANK signal Check the crystal If OSD does not operate,...