User Guide


Product System (PS)
Subject:
C4-425 Trouble Shooting Guide
Part No.:
99.K4501.000
Rev.: 0
Doc. No.
99.K4501.000-C4-425-001
Project Code:
99.K4501.001
Component Part.
No.:
NA
Page 25 of 35
Model Name:
DHS5
Form No: BQY0-0B-003-32(031205)
25
still an error, perform Check 4.
Check 4 The FL inverter board may be faulty. Replace it with a new one and return to Procedure 2.
If there is still an error, perform Check 5.
Check 5 Make sure the LCD/FL cable has been firmly connected to the system board and LCD
module.
LCD module
System board
CPU
LCD/FL cable
If the cable is loose or off, reconnect it firmly and return to Procedure 2. If there is still an
error, perform Check 6.
Check 6 The LCD/FL inverter cable may be faulty. Replace it with a new one and return to
Procedure 2. If there is still an error, perform Check 7.
Check 7 The LCD module may be faulty. Replace it with a new one and return to Procedure 2. If
there is still an error, perform Check 8.
Check 8 The System board may be faulty. Replace it with a new one.