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2. Main board trouble shooting:
(1) Main:
REMOTE
POWERON
OSD ok?
When no valid
signal
1. See
CPU trouble shooting
U18, reset successful?
2. U17, RP25, RP24 OK?
3.
CPU (U10) 56pin(IR) signal?
1. RP19,RP17,RP15,RP13
ok?
2. U19, U20 OK?
3. Check L8 with 100Mhz ok?
4. check L9 with 40Mhz ok?
OSD ok.
When input PC
signal
1.check J2
OSD ok.
When input
Video signal
1. RP1, RP2, RP3, RP4, R6
R3, R2, R4 ok? (SIL504
output)
2. check
J2
Saving data in
EEPROM
NO
NO
NO
NO
NO
YES
YES
YES
YES
1.Replace U6 (EEP
ROM)
2.check R36 R37(IIC pull high
resistors)
Summary of Contents for PE8700 - DLP Projector - HD
Page 16: ...15 Appendix C Drawings and Attachments Drawing 1 Top view of BENQ PE8700 video projector ...
Page 17: ...16 ...
Page 26: ...25 6 Packaging Description ...
Page 27: ...26 7 Appearance Description ...
Page 28: ...27 ...