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- Daewoo
- LCD TV
- DSL-20D3
- Service Manual
Daewoo DSL-20D3 Service Manual
Summary of DSL-20D3
Page 1
Service manual lcd television chassis : sl-110p model : dsl-20d3 apr. 2005.
Page 2: Contents
Contents i. Parts with the exception of module 1. Safety precaution 3 2. Product specification 4 3. Block diagram 7 3-1 pcb structure 3-2 power tree 3-3 signal block diagram 4. Description of video circuit 10 5. Schematic diagram 20 6. Sl-110p service data 29 7. Service part list 36 7-1 difference l...
Page 3: 1. Safety Precautions
-3- 1. Safety precautions 1. Safety precautions (1) when moving or laying down a lcd set, at least two people must work together. Avoid any impact towards the lcd set. (2) do not leave a broken lcd set on for a long time. To prevent any further damages, after checking the condition of the broken set...
Page 4: 2. Product Specification
-4- 2. Product specification model dsl-20d3 chassis no sl-110p country europe remote controller r-47b02 lcd panel lcd type tn (aio) screen size ) 20” (50.8 ) aspect ratio 4 : 3 resolution 800 600 (svga) pixel pitch 0.51 0.51 brightness 500 cd/ contrast ratio 500 : 1 viewing angle (u/d/r/l) 60 / 60 /...
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-5- product specification other features comb filter 2d cti lti osd 17 languages teletext 10 page memory top / flof audio output 5w (2.5+2.5w) (10%thd, 60%mod at 1khz) speaker 5 2 aspect ratio control 16 : 9 / zoom auto power off wake up sleep time 15/30/45/60/90/120 min wall mount hole vesa compati...
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-6- product specification stamdard resolution (mode) v frequency (hz) h frequency (khz) 15 inch 17 inch 20inch mac 640 480 66 35 832 624 75 49.73 2-2. Available input signal (1) pc input (2) component input - 480i/ 60 hz - 480p / 60 hz - 576i / 50 hz - 576p / 50 hz - 720p / 60 hz - 1080i / 50 hz - 1...
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9 soun adc mst9883 (ic16) saw filter tv rf tuner sound processor if process video decod -er micom ttx& caption video back end display decoder eeprom 24lc16(ic31) s-video input s-vhs (jp5) scart(jp11) (only europ e) vide o in pu t rca (jp8 ) sw ic 4052 (ic2) sdram is42s3200b-6t (ic23) flash sst39vf80...
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4. Description of video circuit -10- sl-110p video circuit : process various input signals signal(y-pb-pr 1080i, 720p, 480p, 480i), analog-pc signal> to produce output signal for lcd panel(15” : 1024 768, 17” : 1280 768, 20” : 800 600). Introduction for main ic 4-1. Ic29 (the vct 49xxi) : ic family ...
Page 11
Description of video circuit -11- 1) drx overview of drx the digital receiver front-end (drx) performs the entire multi-standard quasi split sound (qss) tv if processing, agc, video demodulation, and generation of the second sound if (sif) requiring only one saw filter. All control functions and sta...
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-12- description of video circuit 2) msp overview of msp the msp receives the digital sound if signal from the drx part. The msp is able to demodulate all tv sound standards worldwide including the digital nicam system. Input : sif(drx) msp of vcti audio signal(external device) cd4052(ic33, switchin...
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-13- description of video circuit 3) vsp overview of vsp input : cvbs(drx) vsp of vcti video signal(external device) 51& 52 & 53 pin of vcti(ic29) vsp of vcti output : yuv(4:2:2 or 4:4:4) features - multi-standard color decoder pal/ntsc/secam including all substandards - macro-vision compliant multi...
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-14- description of video circuit 4) ddp overview of ddp the ddp contains the entire digital video component and deflection processing, as well as all analog interfaces to display the picture on a crt input : yuv(4:4:4 , vsp) ddp of vcti output : 16& 17 & 18 pin of vcti(ic29) tv_rgb signal features ...
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-15- description of video circuit 5) tvt overview of tvt tvt of vcti uart pw113(ic13) the tvt is a teletext decoder for decoding world system teletext data, as well as video programming system (vps), program delivery control (pdc), and wide-screen signalling (wss) data used for palplus transmissions...
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-16- description of video circuit 4-2. Ic25 and ic30 (tda1517) : class-b dual audio amplifier input : audio signal (84 & 85 pin of vcti) tda1517 output : audio signal (tda1517, amplify) speaker 4-3. Ic16 (mst9883) : triple video a/d converter with clamps & pixel clock synthesizer input : 1-rf, 1-cvb...
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-17- description of video circuit 4-4. Ic22 (mdin150) : single chip of de-interlacing and format conversion. Interlace signal mdin150, progressive signal pw113(ic13) main features - performs high quality deinterlacing for arbitrary format of interlaced video input up to 1080i - motion adaptive 3-d d...
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-18- description of video circuit “rocess mdin output signal to produce signal for lcd panel(15”± : 1024*768, 17”± : 1280*768, 20”± : 800*600 ). Control : mst9883 and mdin 74lv273a(ic40) switching ic features - itu-r 656 video interface - 2nd generation horizontal and vertical image scaling - pixel ...
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-19- description of video circuit 4-6. Ic17 (el-lv385) : lvds transmitter 24-bit flat panel display (fpd) link-85 mhz output signal of pw113 lv385 (converting lvds signal) lcd panel el-lv385 transmitter converts parallel 28bits cmos/ttl data to serial lvds(low voltage differential signaling) 4-7. Ic...
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Page 29: 6. Sl-110P Service Data
-29- 6. Sl-110p service data 6-1. Sl-110p service data 1. Heatrun item : svc remote controller 1) scv key 2) h/r key : heatrun 0 3) h/r key : heatrun 1 4) h/r key : heatrun 0 5) scv key : cancel 2. I2c stop item : svc remote controller 1) svc key 2) s.Stop key : bus stop no 3) s.Sotp key : bus stop ...
Page 30
Item contents data remark vert. Position +18 vert. Amplitude -120 vertical vert. Zoom +256 geometry vert.Linearity -30 vert. S-correction +40 vert. Blanking start +343 vert. Blanking stop +4 cutoff red 0 cutoff green 0 tube cutoff blue 0 settings whitedrv. Red +470 whitedrv. Green +470 whitedrv. Blu...
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-31- sl-110p service data 3. User_svc mode (normal 1,2 mode) : user_svc mode : pr91 sharpness 0 r g y menu normal (user remote controller) 15 17 20 normal 1 normal 2 normal 1 normal 2 normal 1 normal 2 contrast 48 32 48 30 52 35 brightness 40 45 32 45 40 45 colour 32 25 32 30 32 25 sharpness 32 20 3...
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-32- sl-110p service data 6-3. Sl-110p master ic exchanging method 1. After exchange eeprom(ic31), turn the set on and wait for 20 sec. 2. Confirm led blinking and turn the set on. 3. Tv reset : method (user remote controller) 1) pr91 sharpness 0 r g y menu sleep 2) select the “reset tv-set” on the ...
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-33- sl-110p service data 6-4. Adjusting white balance 1. More than 30 minutes, heat-run the set in full-white mode whit h/r button of svc remote controller. 2. Apply high/low pattern of white balance tester (nitsuki 2849) to video input terminal (croma : off, reference : g) 3. Adjust picture mode, ...
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-34- sl-110p service data 6-5. Component and pc test (1) component mode pcb line : - resolution : 480i or 720p - pattern : color bar finish line : - resolution : 1080i/60hz - pattren : color bar (2) pc mode pcb line : - resolution : 800 600 (svga vesa 72hz) - pattern : full color bar finish line : -...
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-35- sl-110p service data 6-6. Panel defect test visual inspection 15” ss panel 17” ss panel 20.1” auo panel bright spot diameter . Diameter . Diameter . Numberr numberr numberr dark spot diameter . Diameter . Diameter . Numberr numberr numberr width & width & width & bright lines length . Length . ...
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7. Service part list -36- adt1 4859000840 adapter ap06312 m124 485a101470 shieldron 30x140x7.5t m125 485a101470 shieldron 30x140x7.5t m126 485a101970 shieldron 8x170x22t m127 485a102070 shieldron 54x90x30t m128 485a102370 shieldron 30x70x7.5t m150 4850k02200 core ferrite zcat1325-0530a m170 21500901...
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Service part list -37- c223 hcbk104kba c chip cera 50v x7r 0.1mf k 1608 c228 hcbk102kba c chip cera 50v x7r 1000pf k 1608 c229 hcbk102kba c chip cera 50v x7r 1000pf k 1608 c230 hcqk100jba c chip cera 50v ch 10pf j 1608 c233 hcbk104kba c chip cera 50v x7r 0.1mf k 1608 c236 hcqk100jba c chip cera 50v ...
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Service part list -38- d23 dz02w5r6va diode chip zener z02w5.6v d32 dz02w5r6va diode chip zener z02w5.6v d33 dz02w5r6va diode chip zener z02w5.6v d36 dz02w5r6va diode chip zener z02w5.6v d37 dz02w5r6va diode chip zener z02w5.6v d38 dz02w5r6va diode chip zener z02w5.6v d39 dz02w5r6va diode chip zener...
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Service part list -39- loc parts_code parts_name parts_descr r80 hrft750jba r chip 1/10 75 ohm j 1608 r82 hrft750jba r chip 1/10 75 ohm j 1608 r83 hrft750jba r chip 1/10 75 ohm j 1608 r90 hrft750jba r chip 1/10 75 ohm j 1608 r96 hrft750jba r chip 1/10 75 ohm j 1608 a001 4859804996 pcb main 260x234 g...
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Service part list -40- c96 hcbk104kba c chip cera 50v x7r 0.1mf k 1608 d10 dz02w5r6va diode chip zener z02w5.6v d15 dm2fm3—-c diode chip schottky m2fm3 m2f type d16 dbav99l—b diode chip bav99l d24 dz02w5r6va diode chip zener z02w5.6v d25 dbav99l—b diode chip bav99l d26 dz02w5r6va diode chip zener z0...
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Service part list -41- p9a 49590009s0 conn wafer 12505wr-05a00 q1 t2n7002m-b fet chip 2n7002mtf sot-23 60v 0.2a q10 t2sa1037kb tr chip 2sa1037akt146-r q11 t2sc2412kb tr chip 2sc2412k-t146-br q13 t2sc2412kb tr chip 2sc2412k-t146-br q14 t2sc2412kb tr chip 2sc2412k-t146-br q15 t2sc2412kb tr chip 2sc241...
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Service part list -42- loc parts_code parts_name parts_descr r279 hrft303jba r chip 1/10 30k ohm j 1608 r280 hrft271jba r chip 1/10 270 ohm j 1608 r281 hrft103jba r chip 1/10 10k ohm j 1608 r282 hrft103jba r chip 1/10 10k ohm j 1608 r29 hrft202jba r chip 1/10 2k ohm j 1608 r290 hrft101jba r chip 1/1...
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Service part list -43- dlp-15d3shs dlp-17d3shs dsl-20d3 loc parts_name parts_desc parts_code parts_desc parts_code parts_desc parts_code v901 lcd panel ltm150xh-l06 485ld01156 ltm170w1-l01 485ld05171 a201sn02-v0 485ld08200 v902 module ds-1015wds 4850m001nv ds-1017wds 4850m008nv ds-1020wda 4850m004nv...
Page 44: 10. Adapter
-61- 10. Adapter 10-1. Dlp-15d3shs / dlp-17d3shs * specification model ap06312 sad6012se manufacturing anam instrument h&e input voltage ac100~240v 50/60hz ac100~240v 50/60hz output voltage 12vdc (11.4~12.6vdc) 12vdc (11.4~12.6vdc) output current 0~5.25a 0~5.0a stand by power 3w under 3w under power...
Page 45: 9. Inverter
-45- 9. Inverter 9-1. Specificatin dlp-15d3shs dlp-17d3shs dsl-20d3 model ds-1015wds ds-1017wds ds-1020wda input voltage(vin_pwr) 10.8~13.2v 10.8~13.2v 14.5~16.5v dimming voltage(vbrt) 0~5.0v 0~5.0v 0~5.0v lamp on/pff voltage (blkon) 3.0~7.0v 3.0~7.0v 3.0~7.0v lamp active voltage (vo) 665 vrms 710 v...
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-46- inverter 9-3. Troubleshooting *backlight doesn’t turn on is voltage of pin#1,2,3 of p3 and vin_pwr 12v(15/17inch)/15v(20inch)? Is voltage of pin#9 of p3 over 2.5v? Check adapter. Check main pcb. Ch eck start y n n y y exchange inverter or panel..
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