Philips S42AX-YD04 Service Manual page 29

Service Modes, Error Codes, and Fault Finding
Logic Main Y – Main
[LED 2000 Blinks]
Check
LVDS Cable
LED 2000;Green
Fuse F2001
CN2000 Cable
Check
F5003 for V (15V)
cc
F5001 for Vs (205V)
F5006 for Vccf
R5116 for Vs
Check
Q5001, Q5002, Q5003,
Q5004, Q5005, Q5006,
Q5007, Q5010
Check
F4001 for V (15V)
CC
F4002 for Vs (205V)
Check
Q4001 ~ Q4007
Measure
Resistance
OUTH&OUTL
Short?
Check
F2602 for V (63V)
A
Figure 5-13 Fault finding tree: "No Display", 42" HD W2 Plus [1/5]
No Display
X – Main Y – Buffer
NO
Logic-main
YES
Y-main
YES
OPEN
Fuse
Short
SHORT
FET, IGBT
Open
X-main
YES
OPEN
Fuse
SHORT
SHORT
FET, IGBT
OPEN
SHORT
Y-BUFFER
OPEN
Logic Buffer
YES
OPEN
Fuse
SHORT
Panel
SDI PDP 2K7 5.
Logic Broken
Buffer panel
Replace Logic B'd
Replace Y-B'd
Replace Y-B'd
Replace X-B'd
Replace X-B'd
Replace Y-BUFFER
Replace Logic Buffer
Replace PDP
H_16871_004.eps
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