Fault flow chart, English 1.5
1.5 Fault flow chart, English
1.5
Fault
TV channels – No picture or only snow
PDP stby. Light = no light
220V supply OK
W58 connection OK
Possible causes
F900 and/or F901 defect
Defect 5V supply – PCB P
Replace defect fuse
Confirm voltage
PCB P STB 5V
p27p4 5.0±0.3
Replace module P
Fault
TV channels – No picture or only snow
PDP stby. Light = red
RS232 forced on => pictureW69,
RS232, connection OK
Possible causes
Defect RS232 driver, PCB J
Driver PCB D
PDP Self-check
IC9709 OK?
Picture
No
Yes
Fault flow chart, PDP
F900 & F901 on
PCB PF OK?
Replace PCB J
Replace PCB D
Fault
TV channels – No picture or only snow
PDP stby. Light = green
PDP OSD OK
PDP self-check, PCB J = OK
(IC1001, 3003, 3004, 3005 & 3006)
W70, RGB, connection OK
Possible causes
– RGB signal handling
Defect PCB HX
Defect PCB J
Defect PCB D
Fault may be found
in one of the PCBs
in the PDP
Replace PCB HX
Replace PCB J
Replace PCB D
Fault
Noise in picture, PDP OSD menu
No fault in main chassis
No noise from source
Connection OK
Possible causes
Noise in PDP, power, digital processing
Adjusted voltage out of specifications
Defect PCB P, SC or SS
No
Yes
Confirm/adjust
Vsus, Vda, Vbk,
Vad, Ve
Vsus failure
Replace PCB P
Vbk or Vad failure
Replace PCB SC
Vda or Ve failure
Replace PCB SS
Fault
Colour failure on picture
Confirmed OK
RGB from chassis OK
Possible causes
RGB failure in PDP, PCB D
Activate OSD on
PDP
Colours OK?
Fault may be found
in PDP
Replace PCB D
Check RGB
connection W70
PCB 3 p422 to PDP
OK?
Reestablish
connection
Fault
Vertical line in picture
Possible causes
Fault in PCB D, C2, C1, SD, SU, SC, SS
Refer to Local
Screen Failure