Compaq MV7500 Manuel de service

Compaq MV7500SERVICE MANUALWebsite:http://biz.LGservice.comE-mail:http://www.LGEservice.com/techsup.html ColorealTMMODEL: S7500 (PE1165T), S7500 (PE11

- 10 -ADJUSTMENTGENERAL INFORMATIONAll adjustment are thoroughly checked and correctedwhen the monitor leaves the factory, but sometimesseveral adjust

- 11 -14)Set Brightness is cut-off(0.06FL) and Contrast toMax position.15)Set SUB-CONTRAST Max 127(7F) (decimal) position.16)Set B-DRIVE to 90(5A); LG

- 12 -TROUBLESHOOTING GUIDE1. NO POWERNO POWER(POWER INDICATOR OFF)TROUBLE IND900TROUBLE IN FUSE(F901)TROUBLE IN IC901TROUBLE IN D941, D942, D951, D96

- 13 -2. NO CHARACTERNO CHARACTERCHECKIC302 PIN 9(5V) ?CHECK IC302 PIN 5, 6, 7?CHECK IC302 PIN 20, 19, 18 ?CHECKIC303 PIN 1, 2, 3 ?CHECK IC303 PIN 4

- 14 -3. NO RASTERNO VIDEO(POWER INDICATOR ON)CHECK POWER INDICATORGREEN or AMBER?CHECKD712 ANODE(-157V)?CHECKG1 VOLTAGE?(-55V~-150V)TROUBLE IND712TRO

- 15 -4. NO HORIZONTAL DEFLECTIONNO H-DEFLECTION(ONE VERTICAL LINE)CHECKQ706?CHECK B+ VOLTAGE(50V)?CHECKT701(FBT) PIN 2 (31KHZ 60V,69KHZ 140V) ?CHECK

- 16 -5. TROUBLE IN H-LINEARITYUNBALANCED OF H-LIN.CHECKIC401 PIN 5, 6, 7 ?CHECK Q711~Q716?CHECK L703?TROUBLE IN IC401 (MICOM)TROUBLE INQ711 ~ Q716TRO

- 17 -6. NO VERTICAL DEFLECTIONNO V-DEFLECTION(ONE HORIZONTAL LINE)CHECKIC601 PIN 3(15V)?CHECK IC601 PIN 7 (40V)?CHECKIC701 PIN 12, 13?TROUBLE IN R603

- 18 -7. TROUBLE IN OSDTROUBLE INOSD PERIPHERALCIRCUITNO OSDTROUBLE IN 5V LINETROUBLE INIC601 PIN8 (V-FBP),T701 40V LINE (H-FBP)TROUBLE INIC302, IC301

- 19 -8. TROUBLE IN DPMCHECK IC401 (MICOM)PIN 31, 32 (H/V INPUT)SIGNAL?CHECK IC401 PIN 13 WAVEFORM?CHECK IC401 (MICOM)PIN 2, 3 ?CHECK B+LINE (6.3V,15V

1. PICTURE TUBE Size : 17 inch DefIection Angle : 90°Neck Diameter : 29.1 mmDot Pitch : 0.28 mmFace Treatment : Anti-GlareDiagonal Inch : 16.06&quo

- 20 -9. NO DEGAUSSINGCHECK IC401 PIN 19(0V)?CHECK Q953 COLLECTOR VOLTAGE?CHECK P902 ?CHECK RL901?TROUBLE IN IC401 (MICOM) TROUBLE INQ953TROUBLE INP90

- 21 -10. NO TILT (NO ROTATION)NO TILT (NO ROTATION)TROUBLE IN IC401 (MICOM)TROUBLE IN15V LINE, 6.3V LINETROUBLE INQ501~Q503TROUBLE INP501, TILT COIL,

EXPLODED VIEW- 22 -8BA214311116751012139

EXPLODED VIEW PARTS LISTRef. No.12345678910111213ABPart No.3091TKC078A3091TKC078B6318L17006A6318E17002A6318E17002B6318E17002C6318E17002D6318E17002E631

- 24 -DATE: 2002. 04. 15. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATIONC201 0CN1040K949 0.1M 50V Z F TA52C301 181-288N MKT 100V 103JTR PHS86103

DATE: 2002. 04. 15. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATIONC737 0CKZTTA002N 100PF K 2KV R TP5.0C738 0CKZTTA003D SC SAMWHA 250V 1000F M TA

DATE: 2002. 04. 15. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATIOND962 0DRGS00090A 31GF6L-5701 GENERAL SEMICONDUCD971 0DR100009DA RGP10J TP GULF

DATE: 2002. 04. 15. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATIONR306 0RD5601Q609 5.60K 1/4W(3 5% TA52R307 0RD1004Q609 1M OHM 1/4 W (3.4) 5% TA

DATE: 2002. 04. 15. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATIONR737 0RN0560H609 0.56 1/2W 5 TA52R738 0RN0560H609 0.56 1/2W 5 TA52R740 0RD

PIN CONFIGURATION- 29 -TDA4866J Current Driven Vertical Deflection BoosterSYMBOLINAINBVPOUTBGNDOUTAVFBGUARDFEEDBPIN123456789TDA4866J1INA2INB5G

SAFETY-RELATED COMPONENT WARNING!There are special components used in this color monitorwhich are important for safety. These parts are markedon the s

- 30 -TDA4857TDA4857 Autosync Deflection Controller TDA48571234567891011121314151623222524212019181732313029282726VREFVAGCSGNDVCAPVSMODi.cSDA

IIC-SDAIIC-SCLDDC-SDADDC-SCL- 32 -- 33 -SCHEMATIC DIAGRAMNOTICESince this is a basic schematic diagram.The value of components and some partial connec

- 34 -- 35 -PRINTED CIRCUIT BOARD3. MAIN BOARD (Component Side)4. MAIN BOARD (Solder Side)1. CONTROL BOARD (Component Side)2. CONTROL BOARD (Solder Si

TIMING CHART- 4 -VIDEOSYNCCEDFABH – 37.500 26.667 20.317 6.349 2.032 3.810 0.508V – 75.000 13.333 12.800 0.533 0.080 0.427 0.027H – 31.469 31.778 25.4

- 5 -OPERATING INSTRUCTIONSColorealTMFRONT VIEW REAR VIEWAC Power SocketSignal ConnectorSee Front Control Panel Front Control Panel 1. Power/LEDContro

WIRING DIAGRAM- 6 -P501P201P405P301P302P303P702P701T1P402P902S+SSignal CableAC SocketFBT

BLOCK DIAGRAM- 7 -MENUPOWERPOWER INPUT100~240VAC(50/60Hz)LineFilterDegaussingCircuit< OSD Control >SMPSTRANS(T901)SMPSCONTROL(IC901)DPMCONTROL C

DESCRIPTION OF BLOCK DIAGRAM- 8 -1. Line Filter & Associated Circuit.This is used for suppressing noise of power input lineflowing into the monito

- 9 -15. H& V Blanking and Brightness Control.Blanking circuit eliminates retrace line by supplyingnegative pulse to the G1 of the CRT. And Bright