Table of Contents
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Service Manual
Color Television
CHSSIS MODEL
CM-405F
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(Parts Price List)in
Service Information Center.
S/M No : TCM405FEF0
DTH-2930SSFV
MAY. 2006
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Table of Contents
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Summary of Contents for Daewoo DTH-2930SSFV
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Page 1: Service Manual
S/M No : TCM405FEF0 Service Manual Color Television CHSSIS MODEL DTH-2930SSFV CM-405F 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(Parts Price List)in Service Information Center. -
Page 2: Table Of Contents
TABLE OF CONTENTS SAFETY PRECAUTIONS SPECIFICATIONS CIRCUIT BLOCK DIAGRAM ALIGNMENT INSTRUCTIONS YOUR REMOTE CONTROL SERVICE MODE ADJUSTMENT ASSEMBLY ADJUSTMENT APPENDIX(Appendix is provide only by internet[http://svc.dwe.co.kr]) IC DESCRIPTION UOC III SERIES TDA8358J VERTICAL AMPLIFIER TDA6107AJF 24WC16-16 KB EEPROM LA42072N-E AUDIO AMPLIFIER STR-W6735/56 WAVEFORMS TROUBLE SHOOTING GUIDE... -
Page 3: Safety Precautions
SAFETY PRECAUTIONS CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY. SUBJECT : X-RADIATION NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC- TURER'S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY VOID 1. BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PERSON- THE WARRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANT RESULT- NEL COVER THE SUBJECT OF X-RADIATION. - Page 4 SAFETY PRECAUTIONS CAUTION : Do not attempt to modify this product in any way. Unau- The lightning flash with arrowhead symbol, thorized modifications will not only void the warranty, but may lead to your within an equilateral triangle, is intended to alert being liable for any resulting property damage or user injury.
- Page 5 SAFETY PRECAUTIONS 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 are during installation.
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Page 6: Specifications
SPECIFICTION Model DTH-2930SSFV Item CHASSIS CM-405F TV Standard NTSC-M, PAL-M, PAL-N Power Input AC 110-220V, 50/60Hz Power Consumption 110W Tuning System Frequency Synthesizer(FS) Tuning System Tuning Ranges VHF(L) : CH2 - CH6 UHF(H) : CH7 - CH13 UHF : CH14 - CH69... -
Page 7: Circuit Block Diagram
CIRCUIT BLOCK DIAGRAM... -
Page 8: Alignment Instructions
ALIGNMENT INSTRUCTION Your Remote Control(R-48C04) R-48C12 1.POWER 1.POWER Use this button to turn your TV on or off. Use this button to turn your TV on or off. 2.MUTE 2.MUTE Use to turn the TV’s sound on and off. Use to turn the TV’s sound on and off. 3.WCHV 3.WCHV Use these buttons to change channels on your TV, or select items... -
Page 9: Service Mode Adjustment
ALIGNMENT INSTRUCTION 1. 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 10 ALIGNMENT INSTRUCTION...
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Page 11: Assembly Adjustment
ALIGNMENT INSTRUCTION 2. 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 12: Alignment Instruction
ALIGNMENT INSTRUCTION 4-2) Vertical Position Adjustment. - Select V.SLOPE item, adjust V.SLOPE data value till the horizontal line in the centre of the video signal is just at the position where the blanking stars. - Select V.CENTER item, adjust V.CENTER data value to center the raster properly on the screen. 4-3) Vertical Size Adjustment - Select V.SIZE item, adjust V.SIZE data value to proper vertical size as follows. - Page 13 ALIGNMENT INSTRUCTION 4-4). EAST / WEST Adjustment Adjust the H.PARALLEL, H.SIZE, H-BOW, PARABOLA, EW TRAPEZ, CORNER TOP, CORNER BOTTOM to compensate for geometrical distortion. H.PARALLEL H.SIZE PARABOLA CORNER TOP, CORNER BOTTOM EW TRAPEZ -12-...
- Page 14 ALIGNMENT INSTRUCTION -13-...
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Page 15: Ic Description
IC DESCRIPTION 1. UOC III SERIES 1-1. UOC III BLOCK DIAGRAM -14-... - Page 16 IC DESCRIPTION HERCULES FULL-STEREO (SSDIP90) (standard version) -15-...
- Page 17 IC DESCRIPTION STANDARD VERSION SYMBOL DESCRIPTION VSSP2 ground VSSC4 ground VDDC4 digital supply to SDACs (1.8V) VDDA3(3.3V) supply (3.3 V) VREF_POS_LSL positive reference voltage SDAC (3.3 V) VREF_NEG_LSL+HPL negative reference voltage SDAC (0 V) VREF_POS_LSR+HPR positive reference voltage SDAC (3.3 V) VREF_NEG_HPL+HPR negative reference voltage SDAC (0 V) VREF_POS_HPR...
- Page 18 IC DESCRIPTION STANDARD VERSION SYMBOL DESCRIPTION VIFIN2 IF input 2 vertical sawtooth capacitor IREF reference current input GNDIF ground connection for IF ampli er SIFIN1/DVBIN1 SIF input 1 / DVB input 1 SIFIN2/DVBIN2 SIF input 2 / DVB input 2 AGCOUT tuner AGC output EHTO...
- Page 19 IC DESCRIPTION STANDARD VERSION SYMBOL DESCRIPTION AGC2SIF 44/- AGC capacitor second sound IF supply voltage TV processor (+5 V) IFVO/SVO/CVBSI IF video output / selected CVBS output / CVBS input AUDIOIN4 audio 4 input AUDIOIN4L audio-4 input (left signal) AUDIOIN4R audio-4 input (right signal) CVBS4/Y4 CVBS4/Y4 input...
- Page 20 IC DESCRIPTION STANDARD VERSION SYMBOL DESCRIPTION scan velocity modulation output FBISO/CSY ybac k input/sandcastle output or composite H/V timing output HOUT horizontal output VSScomb ground connection for comb lter VDDcomb supply voltage for comb lter (5 V) VIN (R/P IN2/C V-input for YUV interface (2 R input / P input...
- Page 21 IC DESCRIPTION STANDARD VERSION SYMBOL DESCRIPTION VDDA1 analog supply for TCG m -Controller and digital supply for TV-processor (+3.3 V) VREFAD_NEG negative reference voltage (0 V) VREFAD_POS positive reference voltage (3.3 V) VREFAD reference voltage for audio ADCs (3.3/2 V) GNDA ground VDDA(1.8V)
- Page 22 IC DESCRIPTION STANDARD VERSION SYMBOL DESCRIPTION P1.6/SCL port 1.6 or I C-bus clock line P1.7/SDA port 1.7 or I C-bus data line VDDP(3.3V) supply to periphery and on-chip voltage regulator (3.3 V) P2.0/TPWM port 2.0 or Tuning PWM output P2.1/PWM0 port 2.1 or PWM0 output P2.2/PWM1 port 2.2 or PWM1 output...
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Page 23: Tda8358J Vertical Amplifier
IC DESCRIPTION -22-... - Page 24 IC DESCRIPTION -23-...
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Page 25: Tda6107Ajf
IC DESCRIPTION -24-... -
Page 26: 24Wc16-16 Kb Eeprom
IC DESCRIPTION -25-... -
Page 27: La42072N-E Audio Amplifier
IC DESCRIPTION -26-... -
Page 28: Str-W6735/56
IC DESCRIPTION 6. STR-W6756 FUNCTIONS OF EACH TERMINAL TERMINAL SYMBOLS DESCRIPTIONS FUNCTIONS DRAIN TERMINAL MOSFET DRAIN S/GND SOURCE/GND MOSFET SOURCE / GND INPUT OF POWER SUPPLY SET UP TERMINAL FOR CONTROL CIRCUIT DELAY AT OVERLOAD / OVERLOAD PROTECTION SS/OLP SOFT START SET UP AND SOFT START TERMINAL OPERATION TIME SET UP... -
Page 29: Waveforms
WAVEFORMS Appendix WAVEFORMS 1).I801 PIN1 2).T402(FBT) HOR.OUT 3).T402(FBT) 190V(D406) 4).I701 PIN73 HOUT 5).I701 PIN76 V+.OUT 6).I701 PIN76 V-.OUT -28-... - Page 30 WAVEFORMS Appendix 7).I701 PIN75 EW OUT 8).I701 PIN46 MONITOR OUT 9).I701 (X-TAL) 10).I301 PIN4 V.OUT 11).I901 PIN R.IN 12).I901 PIN R.OUT -29-...
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Page 31: Troubleshooting Guide
TROUBLESHOOTING GUIDE Appendix 1. NO POWER -30-... -
Page 32: No Picture
TROUBLESHOOTING GUIDE Appendix 2. NO PICTURE NG : Go To The Figure (A) Check The Waveform of TU101 IF PIN OK : Go To The Figure (B) TU101 TUNER CHECK VOLTAGE CHECK CLOCK,DATA Z101 Z101 CHECK THE SAW FILTER SAW FILTER VOLTAGE SCL/SD #22,43,45,63,80... -
Page 33: No Sound
TROUBLESHOOTING GUIDE Appendix 3. NO SOUND NG : Go To The Figure (C) Check The Output Signal of I701 #57,58 OK : Go To The Figure (D) TU101 TUNER CHECK VOLTAGE CHECK CLOCK,DATA Z101 Z101 SAW FILTER SAW FILTER SCL/SD #7,8 I701 #22,43,45,63,80... -
Page 34: Ch Don't Memory Or Skip
TROUBLESHOOTING GUIDE Appendix 4. CH DON’T MEMORY or SKIP NG : Loss of Signal or Weak Signal Check The Iutput Signal Conditions OK : Go To The Figure (E) TU101 TUNER CHECK CHECK CLOCK,DATA VOLTAGE Z101 Z101 SAW FILTER SAW FILTER I702 EEPROM #5,6... -
Page 35: No Color
TROUBLESHOOTING GUIDE Appendix 5. NO COLOR CHECK THE VOLTAGE CHECK THE #83,84,85 #22,43,45,63,80 RGB OUT I701 3.3V #9,16,86,88 #18,19 CHECK THE CHECK THE X701 CRYSTAL CRYSTAL 24.576MHz 6. NO VERTICAL DEFLECTION I701 CHECK THE VERTICAL SIGNAL VERTICAL #76,77 CHECK THE CRYSTAL #18,19 X701... -
Page 36: Remote Control Doesnot Operate
TROUBLESHOOTING GUIDE Appendix -35-... -
Page 37: Electrical Parts List
: 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(Parts Price List)in Service Information Center(http://svc.dwe.co.kr) **This BOM is based on DTH-2930SSFV PARTS CODE PARTS NAME... -
Page 38: Parts Description
ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK C408 CMYH3C702J C MYLAR 1.6KV BUP 7000PF J C409 CMYE2G273J C MYLAR 400V PU 0.027MF J C801 CL1UC3474M C LINE ACROSS 0.47MF 1J(UCVSNDF/SV)+Q/O C802 CL1UC3474M C LINE ACROSS 0.47MF 1J(UCVSNDF/SV)+Q/O C806 CEYD2D331D C ELECTRO... - Page 39 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK M681 4853747800 RETA PCB NYLON 66 M682 4853747800 RETA PCB NYLON 66 M683 4853747800 RETA PCB NYLON 66 PA906 4850708S03 CONNECTOR YH025-08+YST025+ULW=500 PW801 4859907810 CORD POWER AS ME301P+TER=2100 Q401 TKTC3229— KTC3229 Q402 PTH2SW7609...
- Page 40 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK PA907 485923182S CONN WAFER YW025-05 (STICK) R106 RS02Z512JS R M-OXIDE FILM 2W 5.1K OHM J SMALL R305 RS02Z129JS R M-OXIDE FILM 2W 1.2 OHM J SMALL R401 RS02Z100JS R M-OXIDE FILM 2W 10 OHM J SMALL R402 RS02Z121JS...
- Page 41 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK C405 CCXB2H561K C CERA 500V B 560PF K (TAPPING) C413 CEXF1H470V C ELECTRO 50V RSS 47MF (6.3X11) TP C414 CCXB2H102K C CERA 500V B 1000PF K (TAPPING) C416 CCXB2H102K C CERA 500V B 1000PF K (TAPPING) C418 CCXB2H102K...
- Page 42 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK C732 CMXL1J224J C MYLAR 63V MEU 0.22MF J (TP) C734 CMXL1J224J C MYLAR 63V MEU 0.22MF J (TP) C735 CEXF1C101V C ELECTRO 16V RSS 100MF (6.3X11) TP C737 CBXF1H104Z C CERA SEMI 50V F 0.1MF Z (TAPPING) C740 CEXF1C101V...
- Page 43 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK A001 4859818691 PCB MAIN 330X246 D1B C107 CZSL1H470J C CERA 50V SL 47PF J (AXIAL) C108 CZSL1H470J C CERA 50V SL 47PF J (AXIAL) C109 CCZF1H103Z C CERA 50V F 0.01MF Z C110 CCZB1H222K C CERA...
- Page 44 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK D706 DUZ3R3B—- DIODE ZENER UZ-3.3B D805 D1N4937G— DIODE 1N4937G (TAPPING) D806 D1N4937G— DIODE 1N4937G (TAPPING) D807 D1N4937G— DIODE 1N4937G (TAPPING) D808 DMTZJ6R2C- DIODE ZENER MTZJ 6.2C D810 D1N4937G— DIODE 1N4937G (TAPPING) D812 DRGP15J—- DIODE...
- Page 45 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R121 RD-AZ183J- R CARBON FILM 1/6 18K OHM J R201 RD-AZ224J- R CARBON FILM 1/6 220K OHM J R203 RN-AZ1801F R METAL FILM 1/6 1.8K OHM F R204 RD-4Z222J- R CARBON FILM 1/4 2.2K OHM J R213 RD-AZ750J-...
- Page 46 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R630 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R632 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R633 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R634 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R635 RD-AZ103J-...
- Page 47 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R777 RD-AZ332J- R CARBON FILM 1/6 3.3K OHM J R778 RD-AZ101J- R CARBON FILM 1/6 100 OHM J R779 RD-AZ101J- R CARBON FILM 1/6 100 OHM J R780 RN-AZ5600F R METAL FILM 1/6 560 OHM F R803 RD-4Z479J-...
- Page 48 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK RV17 RD-AZ750J- R CARBON FILM 1/6 75 OHM J ZA03 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING ZA04 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING ZA05 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING ZA07 85801065GY WIRE COPPER...
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Page 49: Printed Circuit Board
-48-... - Page 50 -49-...
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Page 51: Schematic Diagram
-50-... - Page 52 -51-...
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Page 53: Explode View
-52-... - Page 54 DAEWOO ELECTRONICS CORP. 686, AHYEON-DONG, MAPO-GU, SEOUL, KOREA. C.P.O. BOX 8003 SEOUL KOREA PRINTED DATE : MAY. 2006...
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