BenQ PE8700 service manual Connector board trouble shooting guide, Ok?

Page 45

4. Connector board trouble shooting guide.

S-video is OK?

Composite is OK?

Component is OK?

DVI- A is

OK?

DVI-D (HDCP)is OK?

YPbPr is OK?

BNC-PC is OK?

J6 12V output?

No

No

No

No

No

No

No

Check L14,L17

Check U5

Check U10

Check L13

Check U5

Check U10

Check L15,L16,L18

Check U10

Check L28,,L29,L31,L32,L33 Check U17

Check U18 DDC

Check U17

Check L2,L3,L4

Check U2

Check U7

Check L2,L3,L4,L5,L6 Check U2,U3,U4

Check F1

Check Q2

Check L24

Check Q3

44

Image 45

Contents DLP Projector Contents Servicing Precautions Safety PrecautionsMinimum Engineering SpecificationPage Hdtv IEC Vcci Content Appendix a Optical MeasurementGeneral requirements A1. Brightness Practical considerationA2. Brightness Uniformity A5. Peak Contrast A9. Zoom Ratio Appendix B Design Verification Test Procedure PurposeTest Summary Test Order DefinitionAppendix C Drawings and Attachments Page Appendix D HD2 Front Projection Image Quality Specification Gray 10 test screen Gray 6 test screenWhite test screen Black test screenRed Ramp test screen Test Conditions as tested in OEM projector· Refer to for acceptance criteria, in specified order Image Quality Specification Appendix E Supporting Timings Support Timings by DVI-I Input Analog or Digital PC signalsPage Projector PE8700 99.J5877.B21 Spare Parts ListBNC Black DiagramPackaging Description Appearance Description Page Procedure Alignment ProcedureOSD Default value used for color delay alignment EquipmentSelect Save Setting at Factory OSDFactory OSD Default value used for DVI-Analog color alignment Procedure Black Level Adjustment DLP brightness White Level Adjustment AD contrast---R,G,B gainOffset adjustment at low brightness AD R, G, B offset User setupwhite C15400k C26500k C37500k OSD Default value used for Ypbpr color alignmentYPbPr Component Equipment Gray Level AD Ypbpr Contrast, Brightness Procedure Pbpr Offset adjustment AD PB, PR OffsetSaturation Level Scalar Case x1x0 & y1 y0 Factory SD User setupwhite C15700k C26500k C39300kSaturation Level Gray Level for Ycbcr Component ProcedureProcedure Gray Level OSD Default value Value USERPictureGray Level for Composite Video & S-Video Equipment Additional Patterns used for color final checkSystem trouble shooting Trouble Shooting GuideYES Main board trouble shootingSIL504 trouble shooting U4, U2 CPU U10 trouble shooting guide YES DMD board trouble shooting guideOK? Connector board trouble shooting guidePower board trouble shooting guide 鐐衒蘠耟  鞤矏矏耟礼袨蘠醥袓藜耟  韗齇耟  斉鞥觖罿蘠韘篧蚴礼  誜袨鷘矏篧袨ゾ篧礼榢譗む鞥觖蛂豽袕む醥藜罿袨矏篧ソ譂 Factory Factory OSD OperationSTD Adj HD AdjColor Balance Filter Bypass Pattern1 DLPPattern3 Pattern2Test Mode Firmware Upgrade Procedure Page 12. RS232 Codes Page X00 Must be Reversed , no function X57 Picture by picture display Page Following is the list of Y-group Page ACK = Y1Y Page Page Page Mcureset Dvdoreset DeintdoneOpenable Mcureset TriggerBenq Corporation DIIN9 DIIN6 DIIN8DIIN7 DIIN4Interlacedetect ResetdvdoCLK54 22DETECT 32DETECTBenq Corporation RM1CLKIN WIRETP31 RM1OP EnableMEMDQ14 WIRETP30 CP UD0 CP UD1Resetvcc Powerontest Resetn SDA SCLResetvcc CPUA8 CP UD0 CPUS2 Resetn CPUA3 CpurdnWIRETP52 INLTCH25 WIRETP53WIRETP51 INLTCH26 WIRETP46 INLTCH27This PIN only for Test MEMDQ15 MEMDQ48 MEMDQ31 MEMDQ0MEMDQ30 MEMDQ1 MEMDQ14 MEMDQ49Cwindex Circuit FLADDR16 FLADDR12U2C CTMN1M CTM1MP2P5VIN Screw HolesScrlr DDAN10 DDAN11 DDAN12 DDAN13 DDAN14 DDAN15DAD1000 SSI Color Wheel Drive Circuit Benq Corporation 500 OHM Vsync Capp 1CAPP+CAP HSB BnchsVoltage level of CB/CR is Datack Hsout ADR0Sogout Vsout AdrinScin ResetCR1IN CB 1IN Sogy Sogyin Sogrca Racin Inta1TURN on Larry Lin1 Resetzdvi RES Oclk INV Hsdjtr R101 ResetzdviRESETR111 Dviscl DVISCL3V Dvisda DVISDA3V

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