Service Modes, Error Codes, and Fault Finding
EN 31SDI PDP 5.
Figure 5-9 Repair scenario 42”/50” SD/HD v4 stand alone panels
Repair 42" & 50" SD/HD v4
Check PDP type number:
PDP identification =
S42SD-YD07?
S42AX-YD01?
S50HW-XD04?
Disconnect and remove SSB.
Remove plastic frame to have acces to all boards
- Insert jumpers at J8003, J8004 (and BJ8902 for
stand alone application without Logic brd).
- Insert jumper CN2012 on Logic Brd for full white picture.
Connect Mains to PSU board
(CN8001 on Power Supply, use mains filter).
Green LEDs
are “on” ?
8002, 8001, BD8903 (on PSU)
Go to other repair scenario
Other PDP
type
Power Supply
is defective.
Replace Power
Supply board.
No
go to fault finding part:
PSU okay. If display problems,
Go to “Power Supply Check”
repair procedure for v4 versions.
Ye s
No
Ye s
No Display Abnormal Display
Some horizontal or
Vertical Lines don´t exist
F_14991_037.eps
111005
as stand alone.
Determine defective
part via error table.
Protection
LED BD8903 is
blinking?
LED signature Detected error condition
1 time V_A OVP, UVP
2 times 12V OVP, UVP
3 times V_SCAN OVP, UVP
4 times D3V3 OVP, UVP
5 times V_S OVP, UVP
6 times V_G OVP, UVP
7 times V_SET OVP, UVP
8 times V_E OVP, UVP
9 times Over-temperature (> 105 oC)
10 times PFC_OK UVP (> 330 V)
11 times 5V2 OVP or Active DC_PROT
13 times D5VL OVP, UVP
LED8002 LED8001 CN8001
BD8903
BJ8902
right pos.
J8004
J8003
(jumper setting ok?)
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