Service Modes, Error Codes, and Fault Finding
EN 23
FHP PDP
5.
Figure 5-13 Vertical line / vertical bar problem analysis procedure (2/4)
Bar of 1/2 screen width on the
left does not light?
Voltage exists at
ABUSL board CN52?
Switch off
Disconnect CN52 from ABUSL board
Switch on
Voltage exists
at PSU board?
Logic board is
defective
ABUSL board is
defective
PSU Cable is defective.
Connector has poor connection.
Logic board is defective.
1
Y
Y
Y
N
Bar of 1/2 screen width on the
right does not light?
Voltage exists at
ABUSR board CN42?
Switch off
Disconnect CN42 from ABUSR board
Switch on
Voltage exists
at PSU board?
Logic board is
defective
ABUSR board is
defective
PSU Cable is defective.
Connector has poor connection.
Logic board is defective.
Y
Y
N
Y
N
Switch off
End of analysis
N
N
2
N
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