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35

ELECTRICAL PARTS LIST

LOC

PART-CODE

PART-NAME

PART-DESC

I

AD1

9979720013

ADAPTER POWER

ISA50-1

AD1A W3414M731-

CORD POWER

KKP-419C/KKS-15A 1.8M(BK)

C044 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C045 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C046 HCFK103ZCA C CHIP CERA

50V Y5V 0.01MF Z 2012

C047 HCFK103ZCA C CHIP CERA

50V Y5V 0.01MF Z 2012

C048 HCFK103ZCA C CHIP CERA

50V Y5V 0.01MF Z 2012

C049 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C050 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C051 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C052 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C053 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C054 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C055 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C056 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C057 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C058 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C059 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C060 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C061 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C062 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C063 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C064 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C065 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C066 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C067 HCQK220JCA C CHIP CERA

50V CH 22PF J 2012

C068 HCTAF109MB C CHIP TANTAL

16V 1MF M 3216

C069 HCTEF101MC C CHIP TANTAL

16V 100MF M 7343 TS

C070 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C071 HCTEF101MC C CHIP TANTAL

16V 100MF M 7343 TS

C072 HCTAF109MB C CHIP TANTAL

16V 1MF M 3216

C073 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C074 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C075 HCQK102JCA C CHIP CERA

50V CH 1000PF J 2012

C076 HCTEJ220MC C CHIP TANTAL

35V 22MF M 7343

C077 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C078 HCFK154ZCA C CHIP CERA

Y5V 50V 0.15MF Z 2012

C079 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C080 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C081 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C082 HCFK103ZCA C CHIP CERA

50V Y5V 0.01MF Z 2012

C083 HCFK103ZCA C CHIP CERA

50V Y5V 0.01MF Z 2012

C084 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C085 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C086 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C087 HCFK223ZCA C CHIP CERA

50V Y5V 0.022MF Z 2012

C088 HCFK223ZCA C CHIP CERA

50V Y5V 0.022MF Z 2012

C090 HCTBF100MB C CHIP TANTAL

16V 10MF M 3528 TS

C091 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C092 HCQK220JCA C CHIP CERA

50V CH 22PF J 2012

C093 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C094 HCFK103ZCA C CHIP CERA

50V Y5V 0.01MF Z 2012

C095 HCFK103ZCA C CHIP CERA

50V Y5V 0.01MF Z 2012

C096 HCQK220JCA C CHIP CERA

50V CH 22PF J 2012

C097 HCFK103ZCA C CHIP CERA

50V Y5V 0.01MF Z 2012

C098 HCTBF100MB C CHIP TANTAL

16V 10MF M 3528 TS

C099 HCFK223ZCA C CHIP CERA

50V Y5V 0.022MF Z 2012

C1

HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C10

HCTBF100MB C CHIP TANTAL

16V 10MF M 3528 TS

C100 HCFK223ZCA C CHIP CERA

50V Y5V 0.022MF Z 2012

C101 HCFK223ZCA C CHIP CERA

50V Y5V 0.022MF Z 2012

C102 HCFK223ZCA C CHIP CERA

50V Y5V 0.022MF Z 2012

C103 HCQK102JCA C CHIP CERA

50V CH 1000PF J 2012

C104 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C105 HCQK102JCA C CHIP CERA

50V CH 1000PF J 2012

C107 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C108 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C109 HCQK102JCA C CHIP CERA

50V CH 1000PF J 2012

C11

HCTBF100MB C CHIP TANTAL

16V 10MF M 3528 TS

C110 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C111 HCTEF101MC C CHIP TANTAL

16V 100MF M 7343 TS

C112 HCQK102JCA C CHIP CERA

50V CH 1000PF J 2012

C113 HCQK102JCA C CHIP CERA

50V CH 1000PF J 2012

C114 HCQK102JCA C CHIP CERA

50V CH 1000PF J 2012

C115 HCTBF100MB C CHIP TANTAL

16V 10MF M 3528 TS

C116 HCQK102JCA C CHIP CERA

50V CH 1000PF J 2012

C117 HCFK474ZCA C CHIP CERA

Y5V 50V 0.47MF Z 2012

C118 HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

C119 HCQK102JCA C CHIP CERA

50V CH 1000PF J 2012

C12

HCFK104ZCA C CHIP CERA

50V Y5V 0.1MF Z 2012

LOC

PART-CODE

PART-NAME

PART-DESC

The components identified by mark 

 

have special characteristics important for safety and X-ray.

These should be replaced only with the types specified in the parts list.

Содержание L500B

Страница 1: ...ServiceManual TFT LCD MONITOR Model L500B DAEWOO ELECTRONICS CO LTD OVERSEAS SERVICE DEPT...

Страница 2: ...G PRECAUTIONS 4 GENERAL INFORMATION 8 PIN CONNECTOR 9 OPERATION ADJUSTMENT 10 ALIGNMENT PROCEDURE 14 TROUBLE SHOOTING HINTS 15 BLOCK DIAGRAM 22 PCB LAYOUT 23 SCHEMATIC DIAGRAM 25 EXPLODED VIEW MECHANI...

Страница 3: ...sharp solder points Be certain to remove all foreign materials u Implosion Protection TFT LCD in this monitor employs integral implosion protection system but care should be taken to avoid damage and...

Страница 4: ...G Statements indicate a personal injury hazard immediately accessible as one reads the marking u Symbols in the manual This symbol indicates where applicable cautionary or other information is to be f...

Страница 5: ...pacitors may result in a explosion hazard 2 Do not any spray chemicals on or near this instrument or any or its assemblies 3 Unless specified otherwise in this service manual clean electrical contacts...

Страница 6: ...ally shorted together by conductive foam aluminum foil or comparable conductive material 7 Immediately before removing the protective material from the leads of a replacement ES device touch the prote...

Страница 7: ...lder with an anti static suction type solder removal device or with desolder ing braid before removing the IC u Replacement 1 Carefully insert the replacement IC in the circuit board 2 Carefully bend...

Страница 8: ...Observing diode polarity wrap each lead out of the new diode around the corresponding lead on the circuit board 4 Securely crimp each connection and solder it 5 Inspect the solder joints of the two o...

Страница 9: ...And so this TFT LCD monitor has a maximum horizontal resolution of 1024 dots and a maximum vertical resolution of 768 lines for superior clarity of display By accepting analog signal inputs which lev...

Страница 10: ...w Allow 20 minutes warm up time for the display before checking or adjusting only electrical specifica tion or function w Reform the leadwire after any repair work Pin Signal 1 Red 2 Green 3 Blue 4 G...

Страница 11: ...lected function w Move cursor to the left window on the OSD window w Decrease the value of any selected function w Launch OSD On Screen Display MENU window w Move cursor to the high window on the OSD...

Страница 12: ...11 OPERATION ADJUSTMENT u Key Process w When you choose the icon on the OSD window you can exit the OSD screen u Hot Key R G B Start...

Страница 13: ...Is the noise displayed on the screen Is the noise displayed on the screen Is the noise displayed on the screen yet End Adjust the FIT SCREEN Perform the Adjust the until the screen is cleared AUTO TR...

Страница 14: ...EN CONTROL Adjust the green color BLUE CONTROL Adjust the blue color H CENTER V CENTER Adjust the position of the display horizontally left or right and vertically up or down FIT SCREEN Make character...

Страница 15: ...5Hz available only non interlace mode u Adjustment 1 Smart scaling set to 50 2 Contrast set to 100 3 Brightness set to 50 4 Switching to factory alignment mode Press power key with down menu key t at...

Страница 16: ...G HINTS 1 Abnormal mode detect YES Abnormal mode detect Trouble video input circuit Check input H Sync of TDA8752 NO YES Trouble in the TDA8752 Check waveforms of 84 pin of TDA8752 correct YES Trouble...

Страница 17: ...video or No raster Power LED ON OFF Trouble in adapter Check output voltage of adapter YES Is the 5VS line normal NO Trouble in SQ8 and its ambient circuit NO YES YES Is the pulse of pin9 of the IC1...

Страница 18: ...the Q10 or MX88281 If it s trouble in the MX88282 change the main B D Check the output of the Q10 or 3 pin of CN1 2 5V 2 5V Check the 12V of the main power CN1 1 pin 12V check YES Check the DC AC out...

Страница 19: ...missing Check the output signal of the MX88281 and 74act573 Is OSD color normal NO YES Replace the main B D Are the R G B digital 8 bit output of the U17 TDA8752 YES Check video signal cable or video...

Страница 20: ...Check reset signal 9 pin of micom and its ambient circuit Check output voltage 5V 3 3V 12V NO Trouble in the Q9 and its ambient circuit NO YES Trouble each trouble item Check on off signal of micom YE...

Страница 21: ...ING HINTS 6 Abnormal video Abnormal video Check the output of MX88281 Is the OSD normal NO YES YES Check the control and data signal of SDRAM Is LCLK output the L1 waveform normal Check connection of...

Страница 22: ...O YES U8 2 pin output 12V check YES YES LVCC 3 3V check No raster NO YES Is OSD normal Change the contrast control value to maximum NO YES Are the contrast controls maximum NO YES YES Are the output s...

Страница 23: ...plifier TDA8752 3 RGB signal 15PIN DSUB CONNECTOR PRE AMP Controller Buffer 2 H V sync ADC PLL Sampling clock KM416S1020CT X 3 16M SDRAM X 3 Scaling Controller Red Micom 78 E58 I2C bus 12V adapter AC...

Страница 24: ...25 SCHEMATIC DIAGRAM u MAIN88281A...

Страница 25: ...26 SCHEMATIC DIAGRAM u TOP CIRCUIT...

Страница 26: ...27 SCHEMATIC DIAGRAM u BUFFER...

Страница 27: ...28 SCHEMATIC DIAGRAM u POWER DC DC...

Страница 28: ...29 SCHEMATIC DIAGRAM u MEMORY...

Страница 29: ...30 SCHEMATIC DIAGRAM u MICOM...

Страница 30: ...31 SCHEMATIC DIAGRAM u RGB SYNC...

Страница 31: ...32 SCHEMATIC DIAGRAM u TDA8752A...

Страница 32: ...33 EXPLODED VIEW MECHANICAL PARTS LIST...

Страница 33: ...omponents use only manufacturer s specified parts Abbreviation of Description RESISTOR Description Example CAPACITOR Description Example Allowance F 1 J 5 K 10 M 20 G 2 Fig Index Part No Description R...

Страница 34: ...5V 0 1MF Z 2012 C082 HCFK103ZCA C CHIP CERA 50V Y5V 0 01MF Z 2012 C083 HCFK103ZCA C CHIP CERA 50V Y5V 0 01MF Z 2012 C084 HCFK104ZCA C CHIP CERA 50V Y5V 0 1MF Z 2012 C085 HCFK104ZCA C CHIP CERA 50V Y5V...

Страница 35: ...ERA 50V Y5V 0 1MF Z 2012 C25 HCFK104ZCA C CHIP CERA 50V Y5V 0 1MF Z 2012 C27 HCFK104ZCA C CHIP CERA 50V Y5V 0 1MF Z 2012 LOC PART CODE PART NAME PART DESC C273 HCQK102JCA C CHIP CERA 50V CH 1000PF J 2...

Страница 36: ...RTK Q16 DKDS226RTK DIODE CHIP KDS226 RTK Q17 DKDS226RTK DIODE CHIP KDS226 RTK LOC PART CODE PART NAME PART DESC Q2 TKTC3875SY TR CHIP KTC3875SY RTK Q3 TKTC3875SY TR CHIP KTC3875SY RTK Q4 1K1A7805P1 I...

Страница 37: ...1MF Z 2012 SC6 HCFK103ZCA C CHIP CERA 50V Y5V 0 01MF Z 2012 SC7 HCFK103ZCA C CHIP CERA 50V Y5V 0 01MF Z 2012 SC8 HCFF105ZEA C CHIP CERA 16V Y5V 1MF Z 3216 SD1 DKDS181RTK DIODE CHIP KDS181 RTK LOC PAR...

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