Q7T4-FP71G LCD Monitor Service Guide
Trouble Shooting
1
Confidential
Q7T4 TROUBLE SHOOTING GUIDE
No Display or display is unstable:
1.1 Interface
Board:
No picture or picture unstable
Power off Yes Turn on power
No
Does cable plugs in No Check all of wire then turn on power
connector? switch again.
Yes
Does power stable? No Check Power BD
Yes
Is LED light green/orange? No Check control BD
Yes
Is LED status normal? No Check Flash Rom or replace it
Yes
Does crystal work correctly? No Check crystal CKT or replace it
Yes
Is interface BD normally? No Replace interface BD
Yes
Replace panel
Summary of Contents for Q7T4-FP71G
Page 9: ...Q7T4 FP71G LCD Monitor Service Guide Alignment Procedure 9 Confidential Add FFC...
Page 10: ...Q7T4 FP71G LCD Monitor Service Guide Alignment Procedure 10 Confidential Add Tape...
Page 14: ...Q7T4 FP71G LCD Monitor Service Guide Alignment Procedure 14 Confidential Add one tape...
Page 16: ...Q7T4 FP71G LCD Monitor Service Guide Alignment Procedure 16 Confidential Add one screw...
Page 17: ...Q7T4 FP71G LCD Monitor Service Guide Alignment Procedure 17 Confidential Add 5 screw...
Page 19: ...Q7T4 FP71G LCD Monitor Service Guide Alignment Procedure 19 Confidential Add 2 screw...
Page 21: ...Q7T4 FP71G LCD Monitor Service Guide Alignment Procedure 21 Confidential...
Page 22: ...Q7T4 FP71G LCD Monitor Service Guide Alignment Procedure 22 Confidential Add one tape...
Page 24: ...Q7T4 FP71G LCD Monitor Service Guide Alignment Procedure 24 Confidential Add 4 screw...
Page 25: ...Q7T4 FP71G LCD Monitor Service Guide Alignment Procedure 25 Confidential Add 1 screw...
Page 27: ...Q7T4 FP71G LCD Monitor Service Guide Alignment Procedure 27 Confidential Finished...
Page 28: ...Q7T4 FP71G LCD Monitor Service Guide Alignment Procedure 28 Confidential...
Page 29: ...Q7T4 FP71G LCD Monitor Service Guide Alignment Procedure 29 Confidential...
Page 65: ......