COLOR MONITOR SERVICE MANUAL
Contents
1. 412000279480R AT24CO4N 10SU 2 7 SOP8 4K A TMEL RoHS 80 412000279280R 24 04 6 8068 ST RoHS 80 412000479990R CAT24COAWI TE13 SOIC B CATALYST RoHS 90 ul02 412000330830R AS1117L 1 8 TR LF SOT223 A1 SEMI RoHS 90 4120003300208 IC LD1117AL 1 8V A SOT223 UTC RoHS 412000330070R IC AZ1117H 1 8 SOT223 AAC RoHS 100 0101 412000372830R AS1117L 3 3TR LF SOT223 A1S EMI RoHS 100 412000372020R LD1117AL 3 3V A SOT 223 UTC RoHS 100 4120003720705 AZ1117H 3 3 SOT 223 AAC RoHS 410 0103 412000435480R AT24CO2BN 10SU 1 8 SOIC8 2K ATMEL Ro 110 RA 4120004809908 CAT24CO2WI TE13 SOIC 8 CATALYST RoHS 110 IRA 4120004802808 M24C02 RMN6TP SO8 ST RoHS 120 0105 412000508190R TSUM16AL LF 1 PQFP100 MSTAR RoHS 130 0106 412000373190R SST25VF010A 33 4C SAE SOIC 8 SST RoH 130 412000486310R PM25LV010A 100SCE SOIC8 PMC RoHS 130 412000486190R PS25LV010A 100SCE SOIC8 MSTAR RoHS 140 190 8170 8171 8103 414916000050R RES SMD 0603 09 J RT RoHS 150 186 187 414916010050R RES SMD 0603 109 J RT RoHS R130 R129 R114 R117 R120 160 R125 R127 R131 R132 R101 414916010150R RES SMD 0603 1009 RoHS REV A R167 R168 R178 R179 R124 4149160102508 5 SMD 0603 1KQ RoHS REV A 180 R106 R172 R180 R181 R191 414916010350R RES SMD 0603 10 0 J RT RoHS 190 18102 414916010450R 5 SM2. CORE 5 0805 609 800mA GBK201209T 104 444099030030R SMD 1 0mm RoHS AL2309 A0G1Z 370 506140005700R LABEL BARCODE BLANK 33x7mm ROHS FOR 380 490831300100R BOARD LE1957 X10 390 R107 414916022150R SMD 0603 2209 J RT RoHS REV A 400 R113 R116 R119 414916560910R RES SMD 0603 560 F RT RoHS REV A 410 107 108 109 432002360140R CORE 5 603 609 600mA GBK160808 420 511130002203R SOLDER PASTE Sn96 5 Ag3 0 Cu0 5 SAC305 O 420 511130002200R SOLDER PASTE Sn96 5 Ag3 0 Cu0 5 ROHS 420 511130002201R SOLDER PASTE Sn96 5 Ag3 0 Cu0 5 For CMO module ITEM Location P N Description 790841300500R PCBAJ F BOARD LE 1957 510 ROHS 10 629030009410R IPROGRAM LE 1957 510 ROHS 20 790841320600R PCBA F BOARD MI LE 1957 610 ROHS 30 790841340600R BOARD SMD LE1957 610 ROHS 40 511130001201R SOLDER BAR Sn96 5 Ag3 0 Cu0 5 SAC305 40 RA 511130001200R SOLDER BAR Sn96 5 Ag3 0 Cu0 5 Ni0 06 Ge0 50 506440003800R _ LABEL BLANK YELLOW 10x4mm ITEM Location P N Description 790841320600R BOARD MI LE1957 610 ROHS 10 111 6144 420431000260R 10uF 25V 105 ST 5x11 RoHS 20 1 101 102 420431010461R EC 100uF 16V M 105C ST 5 11 5 30 1 130 133 142 145 105 420432200460R EC 22uF 16V M 105 C ST 5x11 RoHS 40 108 420432210460R EC 220uF 16V M 105 C ST 6 3x11 RoHS 5
3. soft the desk and lay the stand Twist the stand assy until click then take out the its side so that the base is accessible stand assy into the product in the correct direction as shown in picture Pry the hinge cover by flat tip screw driver or jig and Unscrew the 4 screws on the hinge to separate the be careful to prevent from scratching the hinge hinge neck ass y cover gt 5 lt H6 E Pull up the front cover side by side 4 sides and take Turn over the set and pull up the cabinet to separate away the front cover the control cable then take away the back cover Pull out the lamp wire Pull out the LVDS cable DIAGRAM L192WS consists of a main body stand base main body contains InnoLux CMO LCD module with 4 CCFL lamps a power board includes AC DC DC DC inverter and panel power source a control board key pad and an interface board The block diagram is shown as below 10 DESCRIPTION BLOCK DIAGRAM 1 Video Controller Part This part amplifies the level of video signal for the digital conversion and converts from the analog video signal to the digital video signal using a pixel clock The pixel clock for each mode is generated by the PLL The range of the pixel clock is from 25MHz to 135 2 This part consists of the Scaler ADC convertor and LVDS transmitter The Scaler gets the video signal converted analog to d
4. 460 523 530 419316820070R SMD 0805 X7R 6800PF 50V K RoHS 470 C510 C532 419316830060R C SMD 0603 X7R 0 068uF 50V K RoHS 480 790841410600R BOARD AI LE1957 610 ROHS Item Location P N Description 790841410600R BOARD AI LE1957 610 ROHS 10 790841450600R BOARD AI A LE1957 610 ROHS 20 790841460600R PCBA P I BOARD AI R LE1957 610 ROHS Item Location P N Description 790841450600R BOARD AI A LE1957 610 ROHS 10 828 415340101540R RES MOF 1W 1009 J AT MINI RoHS 20 820 821 415030105540R RES CF 1 2W 1 9 J AT MINI RoHS 30 R503 R501 414870305540R 5 MG HV 1 2Ws 3MQ J AT RoHS 40 R521 415020330540R 5 CF 1 4W 332 J AT MINI RoHS 50 812 414020689540R 5 FSM 1 4W 6 80 J AT MINI RoHS 60 804 415130680540R 5 CF 1 2W 689 J AT RoHS REV A 70 10806 411020052020R DIO A02 LF 200V 1A R1 FEC RoHS 70 RA 411030003040R DIO FR103 200V 1A DO 41 MOSPEC RoHS 70 411030065090R DIO PS102R 200V 1A DO 41 PEC ROHS 80 D809 411022003210R DIO 1N4148 75V 0 2A AT PHIL RoHS 80 RA 411022003020R DIO 1N4148 LF 75V 0 15A AT FEC RoHS 80 RA 411020048090R DIO 1N4148 35 75V 0 15A DO35 P EC RoHS 90 D804 411020053090R DIO PS1010R 1000V 1A DO 41 PAN JIT RoHS 90 RA 411032006020R DIO FR10 10 LF 1000V 1A NTIER RoH 100 20802 411020050090R DIO P6KE150A DO 15 AT PANJIT RoHS 100 RA 411020050020R DIO P6KE150A LF AT FRONTIER RoHS 100 RA 41102005001
5. break to the lead of the nearest component on the other side Carefully crimp and solder the connections CAUTION Be sure the insulated jumper wire is dressed so the it does not touch components or sharp edges VIDEO D B SYNC _ Back distingishme Frequency Total period Display Sync Polority Porch Resolution nt kHz Hz E A C D x ais EE EE E p V Lines H Pixels V Lines H Pixels V Lines H Pixels V Lines H Pixels V Lines H Pixels V Lines H Pixels V Lines H Pixels T ers 2575 31409 E e 7 ae PE 375 ss 200 x 600 800 600 gt 46 875 1056 57 283 49 725 ae 48 363 1024 oe ig ESEA 1024x768 75 029 50 ee E ERE 1152 x 870 75082 gt 2 gt 92978 Tes 2 s 108 0 63 981 1688 1280 m ca 112 1280 x ERE rela 135 0 1688 1280 1280 x 1024 H Pixels 55 5 1600 1440 88 750 1440 x 900 V Lines 59 90 17 H Pixels 55 935 1904 1440 152 106 500 1440x 900 V Lines 59 887 H Pixels 70 635 1936 1440 152 136 750 1440x 900 V Lines 74 984 37 879 1056 832 624 1024 768 N 13 DISASSEMBLY 2
6. MT190AW01 V2 panel Left 80 Right 80 Top 80 Bottom 80 at type CR210 6 ENVIRONMENT b For M190A1 L02 panel Left 85 Right 85 80 Bottom 80 at type CR210 6 1 Operating Temperature 0 C 40 C 2 2 Luminance Ambient a For InnoLux MT190AWO01 V2 panel 300cd m Typ 6 2 Relative Humidity 2090 9090 220cd m Min 6500k 170 cd m 9300 Non condensing b For CMO M190A1 L02 panel 300cd m Typ 7 0 i 220cd m 6500k 170 cd m Min 9300k 6 220000150 90401300108066 2 3 Contrast Ratio amp Life 50 000 Hours Min a For InnoLux MT190AW01 V2 panel 500 1 minimum 700 1 Typical 7 DIMENSIONS with TILT SWIVEL b For M190A1 L02 panel 500 1 minimum 850 1 Typical Width 434 8 mm 3 SIGNAL Refer to the Timing Chart Depth 180 mm 3 1 Sync Signal Height 370 mm Separate Sync Composite SOG Sync On Green 8 WEIGHT with TILT SWIVEL 3 2 Video Input Signal 1 Type R G B Analog Net Weight 4 2 0 4 kg 2 Voltage Level 0 0 71 V Gross Weight 5 2404 kg a Color 0 0 0 Vp p b Color 7 0 0 467 Vp p C Color 15 0 0 714 Vp p 3 Input Impedance 75 Q 3 3 Operating Frequency Horizontal 30 83kHz Vertical 50 77Hz 4 Max Resolution D sub Analog 1440 x 900 75Hz PRECAUTION WARNING FOR THE SAFETY RELATED COMPONENT There are some special components used LCD monitor that are important for safety These parts
7. PMBT3904 NPN 200MA 40V SOT23 PHILIP 10 RA 410500045140R XSTR MMBT3904LT1G NPN 200MA 40V SOT23 ON 10 RA 4105000450908 XSTR MMBT3904 NPN SOT 23 PANJIT RoHS 20 Q102 Q105 4105000462108 XSTR 3906 PNP 200MA 40V SOT23 PHILIP 20 RA 4105000461808 XSTR MMBT3906LT1G PNP 200mA 40V SOT23 ON 20 RA 4105000460908 XSTR MMBT3906 PNP SOT 23 PANJIT RoHS 30 Q101 410500068290R XSTR AP2305GN P CH SOT23 APEC RoHS 30 RA 410500075270R XSTR AO3415 P CH SOT23 AOS RoHS 40 Q107 410500050210R XSTR 2N7002 N CH FET SOT 23 PHILIPS RoH 40 RA 410500050130R XSTR SN7002N N CH SOT 23 INFINEON RoHS 40 RA 410500050090R XSTR 2N7002 N CH SOT 23 PANJIT RoHS 50 TVS101 TVS102 TVS103 TVS104 411020026210R 99 350mW 70V SOT 23 PHI RoHS 50 RA 411020026020R DIO BAV99 LF 350mW 70V SOT 23 FEC RoHS 50 RA 411020026390R DIO BAV99 SOT 23 INFINEON RoHS 50 RA 411020026090R DIO BAV99 350mW 75V SOT 23 PEC RoHS 60 D103 411020047210R DIO BAV70 85V SOT23 PHILIPS RoHS 30 411020047020R DIO BAV70 LF 70V SOT 23 FEC ROHS 411020047090R 010 BAV70 70V SOT 23 PEC ROHS 20101 20105 20106 20107 20108 411100956920R ZENER 5 6V MMSZ5232A SOD123 PE C RoHS 411131556920R ZENER 5 6 0 5W DDZ5V6B F SOD1 23 DIODES 70 411131456920R ZENER 5 6V MMSZ5232A SOD 123 WILLAS ROHS 80
8. U501 U502 fail 3 DC output is unstable Output Voltage Unstable Check Vbe of 0801 below 0 3V Check ZD801 ZD802 EE ZD803 D803 D805 Check Pin R of Check R809 R814 C801 R818 IC803 voltage about 2 5V uu Check R810 R811 Check reference voltage Check Vpin3 4 of Check C815 D806 801 about 6V R812 Check Vpinl 2 of IC801 about 1V Check feedback circuit Check R809 R814 END 4 Output power is unstable Unstable power Check sampling Circuit Check R810 R811 R818 Change R810 R811 R818 Check the R pin voltage of IC803 about 2 5V Check the C pin voltage of IC803 if 3V Check R809 R808 R814 D809 Check pin1 of IC802 voltage is 5 8V Check D806 C815 if short Change D806 C815 Check pin3 of IC802 voltage about 1V Change R801 R805 R822 R823 R817 18 5 Black Screen backlight turn Black Screen Check power supply Pin1 2 of CN101 NG Power Fail Check pin34 51 66 and 82 Of U105 Check FB103 And U102 Check FB106 9101 Check Reset 84 Of U105 Check C144 R172 Check Crystal Pin96 Pin97 Of U105 Check X101 C153 C154 Check CCFL Enable 85 of U105 Check pin5 of CN101 gt Inverter Fail Check R16
9. are marked N on the schematic diagram and the replacement parts list IL is essential that these critical parts should be replaced with the manufacturer s specified parts to prevent electric shock fire or other hazard Do not modify original design without obtaining written permission from manufacturer or you will void the original parts and labor guarantee TAKE CARE DURING HANDLING THE LCD MODULE WITH BACKLIGHT UNIT Must mount the module using mounting holes arranged in four corners Do not press on the panel edge of the frame strongly or electric shock as this will result in damage to the Screen Do not scratch or press on the panel with any sharp objects such as pencil or pen as this may result in damage to the panel Protect the module from the ESD as it may damage the electronic circuit C MOS e Make certain that treatment person s body are grounded through wrist band Do not leave the module in high temperature and in areas of high humidity for a long time module not be exposed to the direct sunlight Avoid contact with water as it may a short circuit within the module e Ifthe surface of panel become dirty please wipe it off with a softmaterial Cleaning with a dirty or rough cloth may damage the panel CAUTION Please use only a plastic screwdriver to protect yourself from shock hazard during service operation A WARNING BE CAREFUL ELECTRIC SHOCK
10. 0 CM101 430631060020R WAFER 2 0mm 180 RoHS 60 105 430631080130R WAFER 2x4P 2 0mm 200PHD 2 4ST RoHS 70 101 432008010370 XTAL 14 31818MHz 16pF HC 49US 80 103 440819015030R CON D SUB FEM 15P RA W O SCREW DZ11AAT H ITEM Location P N Description 790841340600R BOARD SMD LE1957 610 ROHS 10 10103 0106 410500045210R XSTR PMBT3904 NPN 200MA 40V SOT23 PHILIP 10 410500045140R XSTR MMBT3904LT1G NPN 200 40V SOT23 ON 10 RA 410500045090R XSTR MMBT3904 NPN SOT 23 PANJIT RoHS 20 10102 0105 410500046210R _ XSTR PMBT3906 PNP 200 SOT23 PHILIP 20 IRA 410500046180R XSTR MMBT3906LT1G PNP 200mA 40V SOT23 ON 20 IRA 410500046090R XSTR MMBT3906 PNP SOT 23 PANJIT ROHS 30 0104 410500068290R XSTR AP2305GN P CH SOT23 APEC RoHS 30 RA 410500075270R XSTR AO3415 P CH SOT23 AOS RoHS 40 0107 410500050210R XSTR 2N7002 N CH FET SOT 23 PHILIPS RoH 40 410500050130R XSTR SN7002N N CH SOT 23 INFINEON RoHS 40 4105000500908 XSTR 27002 N CH SOT 23 PANJIT RoHS 50 IV5101 IV5102 IV5103 IV5104 4110200262108 DIO 99 350mW 70V SOT 23 PHI RoHS 50 RA 411020026020R DIO BAV99 LF 350mW 70V SOT 23 FEC RoHS 50 411020026390R DIO BAV99 SOT 23 INFINEON RoHS 50 411020026090R DIO 99 350mW 75V SOT 23 PEC RoHS 60 0103 411020047210R DIO BAV70 85V 50723 PHILIPS RoHS 60 IRA 411020047020R DIO 70V SOT 23 FEC ROHS 60 RA 411020047090R DIO 70 70V SOT 23
11. 00050R RES SMD 0603 09 J RT RoHS 150 186 8187 414916010050R 5 SMD 0603 109 J RT RoHS R130 R129 R114 R117 R120 R125 R127 160 R131 R132 R101 R167 R168 R178 R179 414916010150R RES SMD 0603 1009 J RT RoHS R124 170 R157 R158 R159 R160 R161 R162 R163 414916010250R SMD 0603 1KQ RoHS 180 R106 R172 R180 R181 R191 414916010350R 5 SMD 0603 10 9 J RT RoHS 190 8102 414916010450R 5 SMD 0603 100 9 REV A RoHS 200 105 414916020350R 5 SMD 0603 20KQ J RT RoHS REV A 210 136 137 414916022250R 5 SMD 0603 2 2 9 J RT RoHS 220 8121 414916047150R RES SMD 0603 4709 J RT RoHS R108 R110 R149 R150 R154 R155 R173 230 R174 R166 R182 R183 R184 R185 R109 414916047250R SMD 0603 47KQ J RT RoHS R122 240 8169 414916390010R 5 SMD 0603 3900 F RT RoHS 250 8133 8134 8135 414916750910R RES SMD 0603 759 F RT RoHS 260 102 415751035080R RP 0612 10KQ x4 1 16W J 8P4R RoHS 270 158 159 160 161 162 163 164 4193010105608 SMD 0603 NPO 100PF 50V J RoHS 280 153 154 419302200560R SMD 0603 NPO 22PF 50V J RoHS 290 126 419302210560R SMD 0603 NPO 220PF 50V J RoHS 300 125 419303300560R SMD 0603 NPO 33PF 50V J RoHS C103 C104 C106 C107 C109 C129 C156 C131 C132 C134 C135 C136 C137 C139 310 C143 C147 C148 C149 C150 6151 4193110400608 SMD 0603 X7R 0 1uF 50V K RoHS C152 C166 3
12. 0R DIO P6KE150A DO 15AT TSC RoHS 110 F802 430613040100R FUSE SLOW PICO II 4A 125V U C AT RoHS 120 J502 J503 J510 J511 J514 J804 J805 J809 430405000000R JMPR ROLL KG D 0 6mm AT RoHS 7 5MM 120 RA 430405000000R ROLL KG D 0 6mm AT RoHS 7 5MM 130 J501 J504 J512 J513 J803 J808 430405000000R JMPR ROLL KG D 0 6mm AT RoHS 10MM 130 IRA 430405000000R JMPR ROLL KG D 0 6mm AT RoHS 10MM 140 J506 J509 J810 J812 430405000000R JMPR ROLL KG D 0 6mm AT RoHS 12 5MM 140 IRA 430405000000R JMPR ROLL KG D 0 6mm AT RoHS 12 5MM 150 J507 J508 430405000000R JMPR ROLL KG D 0 6mm AT RoHS 15MM 150 IRA 430405000000R JMPR ROLL KG D 0 6mm AT RoHS 15MM 160 19802 430405000000R JMPR ROLL KG D 0 6mm AT RoHS 17 5MM 160 IRA 430405000000R ROLL KG D 0 6mm AT RoHS 17 5MM 170 2505 430405000000R JMPR ROLL KG D 0 6mm AT RoHS 20MM 28 170 IRA 430405000000R JMPR ROLL KG D 0 6mm AT RoHS 20MM 180 506140005700R LABEL BARCODE BLANK 33x7mm ROHS FOR PCB 190 700000000300R ASSY PCB amp RIVENT LE1957 ROHS Item Location P N Description 790841460600R BOARD AI R LE1957 610 ROHS 10 802 811 418210227030R CD X7R 1000pF 500V K VT RoHS 20 817 822 419111040030R CAP MTL X7R 0 1uF 50V RoHS 30 816 416231041530R MEB 0 1uF 100V J RSB VT RSBEC3100D 30 IRA 416141041531
13. 20 0805 411090024480R SCHTKY SP1040C 40V 10A ITO220 WILLAS RoH 20 RA 411090040010R SCHTKY SRF1050 50V 10A ITO220AB TSC RoHS 20 RA 411090024010R SCHTKY SRF1040 40V 10A ITO220AB TSC RoHS 30 507200003800R HEATSINK 56x20xt10mm LE1904 05 40 509112306100R SCREW P CROSS T T 3 6 ZnROHS Item Location P N Description 790841440600R BOARD SMD LE1957 610 ROHS 10 0801 410500045210R XSTR PMBT3904 NPN 200 40 SOT23 PHILIP 10 RA 410500045140R 5 MMBT3904LT1G NPN 200MA 40V SOT23 ON 10 RA 410500045090R XSTR MMBT3904 NPN SOT 23 PANJIT RoHS 20 IC501 412000455630R IC OZ9938GN SOIC16 O2 MICRO RoHS 30 D501 D502 D503 D504 D507 D508 411020026210R DIO BAV99 350mW 70V SOT 23 PHI RoHS 30 RA 411020026390R DIO BAV99 SOT 23 INFINEON RoHS 30 RA 411020026020R DIO BAV99 LF 350mW 70V SOT 23 FEC RoHS 30 IRA 411020026090R DIO BAV99 350mW 75V SOT 23 PEC RoHS 40 D505 D506 411020068020R DIO BAW56 70V SOT 23 FRONTIER RoHS 40 RA 411020068090R DIO BAW56 75V SOT 23 PANJIT RoHS 40 RA 411020068210R DIO BAW56 85V SOT 23 PHILIPS RoHS 50 20803 411100956920R ZENER 5 6V MMSZ5232A SOD123 PE C RoHS 50 RA 411131556920R ZENER 5 6V 0 5W DDZ5V6B F SOD1 23 DIODES 50 RA 411131456920R ZENER 5 6V MMSZ5232A SOD 123 WILLAS ROHS 60 20801 411100991950R ZENER 9 1V MMSZ5239B SOD123 PE C RoHS 60 RA 411131591952R ZENER 9 1 0 5W DDZ9V1C F SOD1 23 DIODES 60 RA 411131491920R ZENER 9 1V MMSZ5239A SOD 123 WILLAS ROHS 70 20804 411100916020R ZENER 16V MMSZ5
14. 20 C140 419311054070R SMD 0805 X7R 1uF 16V K RoHS REV A 330 C112 C113 C114 C115 C116 C117 C118 419314730060R SMD 0603 X7R 0 047uF 50V K RoHS 340 101 4320023121118 BEAD CORE 5 0 0805 1209 300mA RoHS 350 102 103 105 106 432002360012R BEAD CORE SMD 0805 609 800mA GBK201209T 360 104 444099030030R SMD 1 0mm 30PIN RoHS AL2309 A0G1Z 370 506140005700R LABEL BARCODE BLANK 33x7mm ROHS FOR 380 490831300100R BOARD LE1957 X10 390 R107 414916022150R RES SMD 0603 2209 J RT RoHS REV A 400 113 8116 119 414916560910R RES SMD 0603 560 F RT RoHS REV A 410 107 108 109 432002360140R BEAD CORE SMD 0603 609 600mA GBK160808 420 511130002203 SOLDER PASTE Sn96 5 Ag3 0 Cu0 5 SAC305 420 RA 511130002200R SOLDER PASTE Sn96 5 Ag3 0 Cu0 5 ROHS 420 RA 511130002201R SOLDER PASTE Sn96 5 Ag3 0 Cu0 5 33 SCHEMATIC DIAGRAM 1 DC to DC vo sv v c33 LD1117AL 3 M 33 38 ale ENABLE LDT11TAL 1 8V 4 vecas 4 oi PMBTICS LED 100 R101 vecas LED AMSER 3 Scaler TSUM16AL ERD EE AVOO AVOO_ADS AvcO H MP HS 3 1 8888888 FINMOGPIO_F25 Pie REFM soc 82 2 soi REXT VOTRE st 9999999 o000000 4 Key Pad TO
15. 246A SOD123 PEC RoHS 26 70 IRA 411131516052R 7 16V 0 5W DDZ16 F SOD123 DIODES RoH 70 RA 411131416020R ZENER 16V MMSZ5246A SOD 123 WILLAS ROHS 80 70805 411100912020R 7 12V MMSZ5242A SOD123 PEC RoHS 80 RA 411131512052R 7 12V 0 5W DDZ12C F SOD123 DIODES R 80 RA 411131412020R 7 12V MMSZ5242A SOD 123 WILLAS ROHS 90 511 510 414916033050R 5 SMD 0603 339 J RT RoHS REV A 100 R802 R806 414904010050R RES SMD 1206 10 J RT RoHS 110 R809 414904100010R 5 SMD 1206 1009 F RT RoHS 120 R813 R814 R815 414908010250R RES SMD 0805 1KQ J RT RoHS REV A 130 R512 R526 414916010350R RES SMD 0603 10KQ J RT RoHS 140 R808 R819 R827 414908010350R 5 SMD 0805 10KQ J RT RoHS 150 R514 414916010450R 5 SMD 0603 100 92 J RT REV A RoHS 160 R513 R529 R530 414916010550R RES SMD 0603 1 9 J RT RoHS REV A 170 R817 414908120210R 5 SMD 0805 12K F RT RoHS REV A 180 R829 414908020150R 5 SMD 0805 20082 J RT RoHS 190 R534 414916220110R 5 SMD 0603 2 2KQ RoHS 200 R524 414916220210R 5 SMD 0603 22 9 F RT RoHS 210 R506 R508 R532 R533 414908033050R RES SMD 0805 33 J RT RoHS 220 R818 R517 R520 414908330110R RES SMD 0805 3 3KQ F RT RoHS REV A 230 R523 414916330210R 5 SMD 0603 33KQ F RT R
16. 7 Q106 R108 R110 MCU imbedded in Scaler IC Fail 19 6 White Screen OK Workmanship MC OK LVDS Cable MC Cable NG heck Panel_Enabl Of U105 pin48 is High Check LVDS OK Signals gt Panel Fail Check C144 NG heck the HW Rese Of U105 pin84 172 168 10 0103 0101 Check the pins Of U105 END 20 7 BAD SCREEN OK LVDS Cable Reinsert NG OK Change LVDS Cable NG heck Crystal Pin96 9 Of U105 OK NG heck the communication Of U105 and U106 OK Check the pins of U105 and U106 21 Workmanship LVDS Cable NG Check X101 C153 C154 Check SDO SCZ SCK SDI Reset WIRING DIAGRAM Connector Ass P N 4303030007308 i EXPLODED VIEW x vit NOS S oe 8 ean Fx OQ n S W S q WURI ORK is MX 4 23 EXPLODED VIEW PARTS LIST Ref No LGE Part No INL Part No Description ABJ32903501 501010209600R BEZEL FRONT Silver cabinet LE1957 L192WS SNQ gt ABJ32903502 501010209610R BEZEL FRONT Black cabinet LE1957 L192WS BNQ 020 MKC37547001 501120105100R LENS T LE1957 L192WS EBU36594401 631102090821R LCP 19 190 01 2 G1 AM1900004201 I
17. CN502 CN503 CN504 430637020030R WFR 2P P 3 5mm 90 W LOCK RoHS 170 801 430300600170R ASS Y 90mm 011007424 ROHS 180 525 527 418105058010R CD SL 5pF K F7 5 RoHS 190 C803 418247233020R CD X7R 4700pF 1 RMING RoH 200 C524 C526 418110058510R CAP CD SL 10pF J F7 5 RoHS CC45SL3FD 210 T501 T502 426000090680R XFMR SW 121 5uH EEL19M SPW 068 RoHS 220 H501 502040604500R SHIELD EMI LE1915 ROHS 230 735100007120R ASSY H S SBR10U100CT U40CT LE1710 240 735100005900R ASSY H S TOP246Y LE1X09 ROHS 250 790841440600R BOARD SMD LE1957 610 ROHS 260 511130001201R SOLDER BAR Sn96 5 Ag3 0 Cu0 5 SAC305 VAC 25 260 511130001200R SOLDER 5 96 5 93 0 0 5 0 06 0 270 511110000101R HOT MELT ADHESIVES 526 280 511110000501R RTV RUBBER UB 511 EURO Item Location P N Description 735100005900R ASSY H S TOP246Y LE1X09 ROHS 10 802 412000379270R TOP246YN TO 220 7C POWER TEGRATION 20 507200003700R HEATSINK 46x20xt10mm LE1704 05 30 509112306100R SCREW P CROSS T T 3 6 ZnROHS Item Location P N Description 735100007120R ASSY H S SBR10U100CT U40CT LE1710 10 10803 411090009480R SCHTKY SP10100C 100V 10A ITO220 WILLAS R 10 RA 411090041010R SCHTKY SRF10100 100V 10A ITO220AB TSC Ro
18. D 0603 100KQ J RT REV A RoHS 200 R105 414916020350R 5 SMD 0603 20KQ J RT RoHS REV A 210 R136R137 414916022250R 5 SMD 0603 22 J RT RoHS 220 5121 414916047150R 5 SMD 0603 4709 RoHS REV A R108 R110 R149 R150 R154 230 R155 R173 R174 R166 R182 414916047250R 5 SMD 0603 4 7KQ J RT RoHS R183 R184 R185 R109 R122 240 69 414916390010R RES SMD 0603 3900 F RT RoHS 250 133 8134 8135 414916750910R RES SMD 0603 759 F RT RoHS 260 RP102 415751035080R RP 0612 10KQ x4 1 16W J 8648 RoHS 270 C162 419301010560R SMD 0603 NPO 100 50 J RoHS 280 153 154 4193022005608 SMD 0603 NPO 22PF 50V J RoHS 290 c126 419302210560R C SMD 0603 NPO 220PF 50V J RoHS 300 125 4193033005608 C SMD 0603 NPO 33PF 50V J RoHS 31 103 104 106 107 109 129 156 131 132 134 310 135 136 137 139 141 419311040060R SMD 0603 X7R 0 1uF 50V K RoHS C143 C147 C148 C149 C150 151 152 166 320 140 419311054070R SMD 0805 X7R 1uF 16V K RoHS REV A MM Reo ee 419314730060R SMD 0603 X7R 0 047uF 50V K RoHS 340 FB401 432002312111R CORE SMD 0805 1202 300mA RoHS 350 102 103 105 106 432002360012R
19. E mail http www LGEservice com techsup html COLOR MONITOR MODEL L192WS BNQ SNQ A QQP CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL apply the MSTAR Chip 5 SPECIFICATIONS 2 SERVICGE OQSD z kay ea u ite 14 PRECAUTIONS 0 3 TROUBLESHOOTING GUIDE 2222 15 TIMING 7 DISASSEMBLY 8 WIRING DIAGRAM 22 BLOCK DIAGRAVM 10 EXPEODEDB VIEW cet 23 DISCRIPTION OF BLOCK DIAGRAM 1 REPLACEMENT PARTS LIST 25 ADJUSTMENT 13 SCHEMATIC DIAGRAM 34 SPECIFICATIONS 1 LCD CHARACTERISTICS 5 POWER SUPPLY Type TFT Color LCD Module 5 1 Power AC 90 264 50 60Hz lt 0 8 Active Display Area 19 inch 5 2 Power Consumption Pixel Pitch 0 285 H x 0 285 V woe SNS VIDE POWER CONSUMPTION COLOR Color Depth 16 2M colors Electrical Interface LVDS lt 9 Surface Treatment Hard coating 3H Haze 25 Anti Glare treatment Operating Mode Normally White Transmissive mode Backlight Unit Top Bottom edge side 4 CCFL Cold Cathode Fluorescent Lamp 2 OPTICAL CHARACTERISTICS 2 1 Viewing Angle by Contrast Ratio gt 10 a For InnoLux
20. ER BAR Sn96 5 Ag3 0 Cu0 5 SAC305 50 511130001200R SOLDER BAR Sn96 5 Ag3 0 Cu0 5 Ni0 06 GeO 60 5021104001008 SPRING SHEET LE1730 29 Main Board For INL Module Item Location P N Description 7908413006008 BOARD V2 LE1957 610 ROHS 10 629030009400R PROGRAM V2 LE1957 610 ROHS 20 790841320600R BOARD MI LE1957 610 ROHS 30 7908413406008 BOARD SMD LE1957 610 ROHS 40 5111300012018 SOLDER BAR Sn96 5 Ag3 0 Cu0 5 SAC305 40 RA 511130001200R SOLDER BAR Sn96 5 Ag3 0 Cu0 5 Ni0 06 Ge0 50 506440003800R LABEL BLANK YELLOW 10x4mm Item Location P N Description 790841320600R BOARD MI LE1957 610 ROHS 10 C111 C144 420431000260R CAP EC 10uF 25V M 105 C ST 5x11 RoHS 20 C101 C102 420431010461R CAP EC 100uF 16V 105 ST 5x11 SK 30 C130 C133 C142 C145 C105 420432200460R EC 22uF 16V 105 ST 5x11 RoHS 40 C108 420432210460R CAP EC 220uF 16V 105 ST 6 3 11 RoHS 50 CN101 430631060020R WAFER 2 0mm 6P 180 RoHS 60 CN105 4306310801308 WAFER 2x4P 2 0mm 200PHD 2 4ST RoHS 70 101 432008010370R XTAL 14 31818 2 16pF HC 49US 30PPM DIP 80 CN103 4408190150308 CON D SUB FEM 15P RA W O SCREW DZ11AA1 H Item Location P N Description 790841340600R PCBAJI F BOARD SMD LE1957 610 ROHS 10 Q103 Q106 410500045210R XSTR
21. I you want to replace with the new backlight CCFL or inverter circuit must disconnect the AC adapter because high voltage appears at inverter circuit about 650Vrms Handle with care wires connectors of the inverter circuit If the wires are pressed cause short and may burn or take fire e Be careful while tilting and rotating the monitor to avoid pinching hand s Leakage Current Hot Check Circuit AC Volt meter Good Earth Ground such as WATER PIPE CONDUIT etc To Instrument s exposed METALLIC PARTS lt ANN 1 5 Kohm 10W SERVICING PRECAUTIONS CAUTION Before servicing receivers covered by this service manual and its supplements and addenda read and follow the SAFETY PRECAUTIONS on page 3 of this publication NOTE If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions on page 3 of this publication always follow the safety precautions Remember Safety First General Servicing Precautions 1 Always unplug the receiver AC power cord from the AC power source before a Removing or reinstalling any component circuit board module or any other receiver assembly b Disconnecting or reconnecting any receiver electrical plug or other electrical connection c Connecting a test substitute in parallel with an electrolytic capacitor in the receiver CAUTION A wrong part substitution or incorrect polarity installation of electr
22. NL EBU36577201 631102090650R LCD PANEL 19 M190A1 L02 A CMO ROHS 040 EBU36576401 790841400600R PCBA P I BOARD LE1957 L192WS 610 ROHS m EBU36589602 790841300600R EBU36589601 790841300500R 2 Boho For CMO Module 060 ADV32904101 701000003000R 55 5515 1 1957 070 EBU36589701 790841500000R PCBA KEYPAD BOARD LE1957 ROHS 080 MEY37547401 501030205700R BUTTON FUNCTION KEY B LE1957 ROHS 090 MEY37547601 501030205710R BUTTON POWER KEY B LE1957 ROHS 100 ACQ32904401 714020008900R ASSY BASE B LE1957 110 ACQ32904601 714010009300R ASSY STAND B LE1957 120 ACQ32904701 714010009310R ASSY STAND NECK LE1957 130 MCK37548201 501020212000R COVER HINGE B LE1957 ROHS 140 MCK37548401 501020211900R 1957 150 EBU36589801 430303000730R HRN LVDS FFC 30P 155mm ACCP30155MU28MY 64101VVI008 asaoroaoorsor OA A BLE SET UUCSASVT 3 6410TBW004A 453070800720R E n se sha ORT UK HOSNY E BOXO 160 641 6410TSW003A 4530708007408 10A 250V BLK 1850mm SAA H05W F 3 6410TTWO01A 453070800750R 7 V125V 1850 CNS VCTF 36X0 170 EBU36590701 430300800830R HRN ASS Y 2 4p to 1 8 305mm UL1571 28 24 REPLACEMENT PARTS LIST CAUTION READ CAREFULLY THE SAFETY PRECAUTIONS NOTE AL ALTERNATIVE PARTS BEFORE REPLACING ANY OF THESE COMPONENTS S SAFETY Mark IN THIS MANUAL Power an
23. PEC ROHS 32 70 20101 20105 20106 20107 20108 __ 4111009569208 ZENER 5 6V 525232 SOD123 PE C RoHS 70 411131556920R ZENER 5 6 0 5W DDZ5V6B F SOD1 23 DIODES 70 411131456920R ZENER 5 6V 525232 SOD 123 WILLAS ROHS 80 0108 412000279480R IC AT24CO4N 10SU 2 7 SOP8 4K A TMEL RoHS 80 IRA 412000279280R 1 24 04 6 SOP8 ST RoHS 80 412000479990R 24 4 13 SOIC 8 CATALYST RoHS 90 0102 412000330830R AS1117L 1 8 TR LF SOT223 A1 SEMI RoHS 9 RA 412000330020R IC LD1117AL 1 8V A SOT223 UTC RoHS 90 RA 412000330070R IC 21117 1 8 SOT223 AAC RoHS 100 0101 412000372830R AS1117L 3 3TR LF SOT223 A1S EMI RoHS 100 IRA 412000372020R IC LD1117AL 3 3V A SOT 223 UTC RoHS 100 412000372070R AZ1117H 3 3 SOT 223 AAC RoHS 110 0103 412000435480R AT24CO2BN 10SU 1 8 SOIC8 2K ATMEL Ro 110 412000480990R IC CAT24CO2WI TE13 SOIC 8 CATALYST RoHS 110 412000480280R 24 02 SOB ST RoHS 120 0105 412000508190R TSUM16AL LF 1 PQFP100 MSTAR RoHS 130 0106 412000373190R 1 SST25VF010A 33 4C SAE SOIC 8 55 130 412000486310R _ IC PM25LV010A 100SCE SOIC8 PMC RoHS 130 RA 4120004861908 1 PS25LV010A 100SCE SOIC8 MSTAR RoHS 140 R190 R170 R171 R103 4149160
24. R MKT 0 1uF 100V J VT ARCO RoHS R82EC 40 522 420421510330R SD 150uF 35V M 105C VT 8x12 RoHS 50 C509 420422210360R SD 220uF 35V 105 ST 10x13 RoHS 60 813 418147038530R CD NPO 47pF 1KV J VT RoHS 70 814 815 818 819 420264700230R SH 47uF 25V M 125 C VT 6 3x11 RoHS 80 810 420424710260R SD 470uF 25V 105C ST 10x16 RoHS 90 Q802 410072013210R XSTR 2PC1815GR IVT PHILIPS RoHS REV 90 RA 410072013370R XSTR 2SC1815 GR T2SPF T VT TOSHIBA Ro 90 RA 410072013150R XSTR UTC2SC1815L GR NPN 1092 UTC RoHS 100 803 412022002840R TLA31ACLPG TO 92 196 VT ON RoHS 100 RA 412022002240R KA431AZ 196 VT FAIRCHILD RoHS 100 IRA 412022002300R IC AP431VL 92 1 VT RoHS 100 IRA 412022002830R IC AS431 92 VT A1SEMI RoHS Item Location P N Description 700000000300R ASSY PCB amp RIVENT LE1957 ROHS 10 490831400100R BOARD LE1957 ROHS 20 3 4 5 6 7 8 512006000500R 3 0 1 6x3 0mm 30 1 2 512006000600R 4 1x 2 2x3 0mm Control Board Item Location P N Description 790841500000R BOARD LE1957 ROHS 10 LED101 411070089450R LED Y G 3x5mm HTL 7VYVG4B1F D12 FB LC4 20 SW101 SW102 SW103 SW104 SW105 4306029801208 SW TACT 160gf 1P H 4 3mm DIP SFKHHAL2420 30 101 4303008008408 HRN ASS Y 8p 65mm 011571828 40 490831500100R PCB KEYPAD BOARD LE1957 ROHS 50 511130001201R SOLD
25. This part function is to make a pulse width modulation control and to provide the driver signal to power switch to adjust the duty cycle during different AC input and output loading condition to achive the dc output stablize and also the over power protection is also monitor by this part 5 Photo Coupler isolation This part function is to feed back the dc output changing status through a photo transistor to primary controller to achieve the stabilized dc output voltage 6 Signal collection This part function is to collect the any change from the dc output and feed back to the primary through photo transistor 12 ADJUSTMENT Windows EDID V1 0 User Manual 2 EDID Read amp Write 1 Run WinEDID exe Operating System MS Windows 98 2000 XP Port Setup Windows 98 gt Don t need setup Windows 2000 XP gt Need to Port Setup This program is available to LCD Monitor only 1 Port Setup a Copy UserPort sys file to c WINNTsystem32 drivers folder b Run Userport exe 2 Edit Week of Manufacture Year of Manufacture Serial Number Input User Info Data b Click Update button C Click Write button c Remove all default number d Add 300 3FF ITT Tp e Click Start button f Click Exit button 13 SERVICE OSD 1 Turn off the power switch at the front side of the display 2 Wait for about 5 seconds and press MENU POWER switch with 1 second interval 3 The SVC OSD menu contains addit
26. WF BO CM105 35 5 Inverter 6 1 SSS Se 36 2006 1 36713651 Printed China
27. arefully remove the transistor from the heat sink of the circuit board Insert new transistor in the circuit board Solder each transistor lead and clip off excess lead Replace heat sink Diode Removal Replacement 1 2 3 Remove defective diode by clipping its leads as close as possible to diode body Bend the two remaining leads perpendicular y to the circuit board Observing diode polarity wrap each lead of the new diode around the corresponding lead on the circuit board Securely crimp each connection and solder it Inspect on the circuit board copper side the solder joints of the two original leads If they are not shiny reheat them and if necessary apply additional solder Fuse and Conventional Resistor Removal Replacement 1 2 3 Clip each fuse or resistor lead at top of the circuit board hollow stake Securely crimp the leads of replacement component around notch at stake top Solder the connections CAUTION Maintain original spacing between the replaced component and adjacent components and the Circuitboard to prevent excessive component temperatures Circuit Board Foil Repair Excessive heat applied to the copper foil of any printed circuit board will weaken the adhesive that bonds the foil to the circuit board causing the foil to separate from or lift off the board The following guidelines and procedures should be followed whenever this condition is encountered At IC Connect
28. d Inverter PCBA Board Item Location P N Description 790841400600R PCBA P I BOARD LE1957 610 ROHS 10 801 412140002380R LTV817M PR VDE LITE ON P 10mm RoHS 10 RA 412140001390 EL817M B EVERLIGHT RoHS 20 U501 U502 410500071290R XSTR AP9971GD N CH PDIP 8 APEC RoHS 20 RA 410500061271R XSTR AOP802 DUAL N CH PDIP 8 AOS RoHS 30 D801 411050005020R DIO BRDG BL4 06 BF52 LF 600V 4A FRONTIER 30 RA 411050007010R DIO BRDG KBL405G 600V 4A TSC RoHS 30 RA 411050005090R DIO FL406 600V 4A PEC RoH S 40 C804 416194743011R MEX 0 47uF 275V K X2 F15 RoHS 50 820 801 806 416202224610R MEY 2200pF 400V M Y F10mm RoHS 60 812 809 420421020102R EC 1000uF 10V M 105 C N F 10x16 L ES 70 808 420421020211R SD 1000uF 25V M 105 C F 13x20 RoHS 80 805 420431214580R SEK 120uF 450V 18 40 M CF 105 C 90 824 416204724610R MEY 4700pF 400V M Y F10mm RoHS 100 1802 1803 425000010530R CHK 5uH 7 8X10 053 0 181085ROL 110 1801 426000050070R L FILTER 12mH LIN 007 ET 20 RoHS 120 801 426000090510R XFMR 750u 1K 8 3m 113m SPW 051 DIP 1 130 RT801 432009401300 82 13 7 5 F ROHS 140 801 430613430290R FUSE SLOW 3 15 250 Lead 3 6 x10mm 150 P801 4401490002208 10A 250V U C V G Y 45mm TU 301 SP 160 CN501
29. igital interpolates input to 1440 X 900 resolution signal and outputs 8 bit R G B signal to transmitter 2 Power Part This part consists of the one 3 3V and one 1 8V regulators to convert power which is provided 5V in Power board 14V is provided for inverter 14V is provided for LCD panel and 5V for micom Also 5V is converted 3 3V and 1 8V by regulator Converted power is provided for IC in the main board The inverter converts from DC14V to 700Vrms and operates back light lamps of module 3 MICOM Part This part is include video controller part And this part consists of EEPROM IC which stores control data and the Micom which imbedded in scaler IC The Micom distinguishes polarity and frequency of the H V sync are supplied from signal cable The controlled data of each modes is stored in EEPROM 11 LIPS Board Block Diagram 50 60Hz LINE 100 240 PRIMARY BECONDARY Operation description LIPS 1 EMI components This part contains of EMI components to comply with global marketing EMI standards like FCC VCCI CISPR the circuit included a line filter across line capacitor and of course the primary protection fuse 2 Input rectifier and filter This part function is for transfer the input AC voltage to a DC voltage through a bridge rectifier and a bulk capacitor 3 Energy Transfer This part function is transfer the primary energy to secondary through a power transformer 4 Output rectifier and filter
30. ional menus that the User OSD menu as described below Auto Color W B balance and Automatically sets the gain and offset value NVRAM INIT EEPROM initialize 24C04 CLEAR To initialize using time AGING Select Aging mode on off i MODULE Show Current module Type j RS232 Enable Disable Debug Mode on off LCD Monitor D ISP Board Figure 1 Cable Connection For ISP TROUBLESHOOTING GUIDE 1 No Power amp Power LED Off Check 802 C805 T801 Check primary rectifier voltage Check F801 P801 D801 Check pin3 of C802 voltage Check R801 R805 about 1V 1 822 823 817 803 807 R824 825 Check 2 of IC802 voltage about 2V Check R812 R816 Check pin1 of IC802 C818 voltage is 5 8V m 15 2 Backlight can t be turned Yes Backlight can t be turned on Is there 5Vdc voltage on pin2 of IC501 Check power supply Is there high level voltage on 10 of IC501 Yes Check I F board No R526 open Yes No Are connected rightly CN501 CN502 CN503 and CN504 Connecting the output connector again Yes Is there instantaneously pulse wave on pinl pin3 pin15 of IC501 at the moment of restart No IC501 fail sip No T501 T502 fail Yes Check feedback circuit Isen Vsen D501 D502 D503 D504 D507 D508 END 16 Yes No
31. ions To repair a defective copper pattern at IC connections use the following procedure to install a jumper wire on the copper pattern side of the circuit board Use this technique only on IC connections 1 Carefully remove the damaged copper pattern with a sharp knife Remove only as much copper as absolutely necessary 2 carefully scratch away the solder resist and acrylic coating if used from the end of the remaining copper pattern 3 Bend a small U in one end of a small gauge jumper wire and carefully crimp it around the IC pin Solder the IC connection 4 Route the jumper wire along the path of the out away copper pattern and let it overlap the previously scraped end of the good copper pattern Solder the overlapped area and clip off any excess jumper wire At Other Connections Use the following technique to repair the defective copper pattern at connections other than IC Pins This technique involves the installation of a jumper wire on the component side of the circuit board 1 Remove the defective copper pattern with a sharp knife Remove at least 1 4 inch of copper to ensure that a hazardous condition will not exist if the jumper wire opens 2 Trace along the copper pattern from both sides of the pattern break and locate the nearest component that is directly connected to the affected copper pattern 3 Connect insulated 20 gauge jumper wire from the lead of the nearest component on one side of the pattern
32. ip soldering iron to solder or unsolder ES devices 4 Use only an anti static type solder removal device Some solder removal devices not classified as anti static can generate electrical charges sufficient to damage ES devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ES devices 6 Do not remove a replacement ES device from its protective package until immediately before you are ready to install it Most replacement ES devices are packaged with leads electrically 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 protective material to the chassis or circuit assembly into which the device will be installed CAUTION Be sure no power is applied to the chassis or circuit and observe all other safety precautions 8 Minimize bodily motions when handling unpackaged replacement ES devices Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES device General Soldering Guidelines 1 Use a grounded tip low wattage soldering iron and appropriate tip size and shape that will maintain tip temperature within the range or 500F to 600F 2 Use an appropriate gauge of RMA resin core solder composed of 60 pa
33. oHS 240 527 414916330410R 5 SMD 0603 3 3M F RT RoHS 250 R801 R805 R822 R823 414908033550R RES SMD 0805 3 3 9 J RT RoHS 270 R522 414916453210R 5 SMD 0603 45 3KQ RT ROHS 280 R509 R539 R540 R541 R542 414916470010R RES SMD 0603 4709 F RT RoHS 290 R825 414908047450R 5 SMD 0805 470 J RT RoHS 300 R810 414908510110R 5 SMD 0805 5 1KQ RoHS 310 R811 414908510210R 5 SMD 0805 51KQ F RT RoHS 320 R803 R807 R824 414908051450R RES SMD 0805 510KQ J RT RoHS 330 R538 414916604310R 5 SMD 0603 604KQ RoHS 340 R816 414908068950R RES SMD 0805 6 89 J RT RoHS 350 R535 414908075150R 5 SMD 0805 750 J RT RoHS 360 C504 419311020060R C SMD 0603 X7R 1000PF 50V K RoHS 370 C501 C502 C513 C514 C535 C536 419311020070R SMD 0805 X7R 1000PF 50V K RoHS 380 505 419311030060R C SMD 0603 X7R 0 01uF 50V K RoHS 390 C821 419311040060R C SMD 0603 X7R 0 1uF 50V K RoHS 400 C531 419301810560R SMD 0603 180PF 50V J RoHS 410 C511 C507 419342254670R SMD 0805 5 2 2uF 16V Z RoHS 420 C529 419302710560R SMD 0603 NPO 270PF 50V J RoHS 430 508 512 516 419313333060R SMD 0603 X7R 0 033uF 25V K RoHS 450 C506 419314720060R C SMD 0603 X7R 4700PF 50V K RoHS 27
34. olytic capacitors may result in an explosion hazard d Discharging the picture tube anode Test high voltage only by measuring it with an appropriate high voltage meter or other voltage measuring device DVM FETVOM etc equipped with a suitable high voltage probe Do not test high voltage by drawing an arc Discharge the picture tube anode only by a first connecting one end of an insulated clip lead to the degaussing or kine aquadag grounding system shield at the point where the picture tube socket ground lead is connected and then b touch the other end of the insulated clip lead to the picture tube anode button using an insulating handle to avoid personal contact with high voltage Do not spray chemicals on or near this receiver or any of its assemblies Unless specified otherwise in this service manual clean electrical contacts only by applying the following mixture to the contacts with a pipe cleaner cotton tipped stick or comparable non abrasive applicator 1096 by volume Acetone and 9096 by volume isopropyl alcohol 9096 9996 strength CAUTION This is a flammable mixture Unless specified otherwise in this service manual lubrication of contacts in not required Do not defeat any plug socket B voltage interlocks with which receivers covered by this service manual might be equipped Do not apply AC power to this instrument and or any of its electrical assemblies unless all solid sta
35. rts tin 40 parts lead 3 Keep the soldering iron tip clean and well tinned 4 Thoroughly clean the surfaces to be soldered Use mall wire bristle 0 5 inch or 1 25cm brush with a metal handle Do not use freon propelled spray on cleaners 5 Use the following unsoldering technique a Allow the soldering iron tip to reach normal temperature 500F to 600F b Heat the component lead until the solder melts c Quickly draw the melted solder with an anti static suction type solder removal device or with solder braid CAUTION Work quickly to avoid overheating the circuitboard printed foil 6 Use the following soldering technique a Allow the soldering iron tip to reach a normal temperature 500E to 600 b First hold the soldering iron tip and solder the strand against the component lead until the solder melts Quickly move the soldering iron tip to the junction of the component lead and the printed circuit foil and hold it there only until the solder flows onto and around both the component lead and the foil CAUTION Work quickly to avoid overheating the circuit board printed foil d inspect the solder area and remove any excess or splashed solder with a small wire bristle brush IC Remove Replacement Some chassis circuit boards have slotted holes oblong through which the IC leads are inserted and then bent flat against the circuit foil When holes are the slotted type the following techniq
36. te device heat sinks are correctly installed Always connect the test receiver ground lead to the receiver chassis ground before connecting the test receiver positive lead Always remove the test receiver ground lead last 9 Use with this receiver only the test fixtures specified in this service manual CAUTION Do not connect the test fixture ground strap to any heat sink in this receiver Electrostatically Sensitive ES Devices Some semiconductor solid state devices can be damaged easily by static electricity Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are integrated circuits some field effect transistors and semiconductor chip components The following techniques should be used to help reduce the incidence of component damage caused by static by static electricity 1 Immediately before handling any semiconductor component or semiconductor equipped assembly drain off any electrostatic charge on your body by touching a known earth ground Alternatively obtain and wear a commercially available discharging wrist strap device which should be removed to prevent potential shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrostatic charge buildup or exposure of the assembly 3 Use only a grounded t
37. ue should be used to remove and replace the IC When working with boards using the familiar round hole use the standard technique as outlined in paragraphs 5 and 6 above Removal 1 Desolder and straighten each IC lead in one operation by gently prying up on the lead with the soldering iron tip as the solder melts 2 Draw away the melted solder with an anti static suction type solder removal device or with solder braid before removing the IC Replacement 1 2 3 Carefully insert the replacement IC in the circuit board Carefully bend each IC lead against the circuit foil pad and solder it Clean the soldered areas with a small wire bristle brush It is not necessary to reapply acrylic coating to the areas Small Signal Discrete Transistor Removal Replacement 1 2 3 4 Remove the defective transistor by clipping its leads as close as possible to the component body Bend into a U shape the end of each of three leads remaining on the circuit board Bend into a U shape the replacement transistor leads Connect the replacement transistor leads to the corresponding leads extending from the circuit board and crimp the U with long nose pliers to insure metal to metal contact then solder each connection Power Output Transistor Device Removal Replacement 1 2 3 4 5 6 Heat and remove all solder from around the transistor leads Remove the heat sink mounting screw if so equipped C
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