Philips S42AX-YD04 Service Manual page 49

5.2.9 Defect Overview
Table 5-2 Defects, symptoms and defective parts
Condition Name
No output voltage
No display
Abnormal display
Sustain open
Sustain short
Address open
Address short
Defective panel cells
Symptom : A line or block does not light up in address
Cause
Service Modes, Error Codes, and Fault Finding
Description
Operating voltages don't exist.
Operating voltages exist, but no image on screen
Abnormal Image (not open or short) is on screen.
Some horizontal lines are missing on screen
Some horizontal lines appear to be linked on screen
Some vertical lines are missing on screen
Some vertical lines appear to be linked on screen
Some cells seem to be defective
Defect: Address(vertical stripe) Open
electrode direction.(1 line ,block open)
manufacturing : Panel electrode single line/
foreign material./electrostatic/
TCP defect
Parts : TCP, Board connection defect
Operation : Assembly error / Film damage
Figure 5-40 Defect overview [1/11]
Defect: Address output error
Symptom.: A defect other than address open
and short Data printout signal error
occurring at certain Gradation or pattern
Figure 5-41 Defect overview [2/11]
Defect: Address(vertical stripe) Short
Symptom: Another color simultaneously appears because
adjacent data recognizes the single pattern signal
Cause
manufacturing : Panel electrode short / Foreign material
conductive foreign object inside TCP
Part : TCP/buffer defect lighting electrode cutting defect
Defect: Sustain(horizontal stripe) Open
Symptom : One or more line do not light up in Sustain direction
Cause : manufacturing : .Panel bus electrode single line
FPC pressure defect
Parts : FPC/board/connection disconnection
operation : assembly error.
SDI PDP 2K7 5.
Related Board
SMPS
Y-MAIN, X-MAIN, Logic Main, Cables
Y-MAIN, X-MAIN, Logic Main
Scan Buffer, FPC of X / Y
Scan Buffer, FPC of X / Y
Logic Main, Logic Buffer, FFC,TCP
Logic Main, Logic Buffer, FFC,TCP
Check criteria for replacement of the panel
H_16870_021.eps
020407
H_16870_022.eps
020407
EN 49