LG 50PV350T-ZD (CHASSIS:PD11L) Service Manual ▷ View online
Making
Revision
PDP TV
Input
Block
HDMI Video Problem
Check input signal format
Is it supported?
Check EDID D/L
Re-Download EDID
Check HDMI Cable for damage or
open conductors
Replace Connector
Replace MSTAR(IC400)
Y
Y
Y
Y
N
N
Check JK200 / J201 / J202
for proper connection or damage
A6-6
Repair Process-Reference data
A6
Making
Revision
PDP TV
Symptom
A. Picture Problem
Fuse Checking Method
Repair Process-Reference data
A7
1) Sound comes, the fuse is OK.
2) If Fuse is defects, it should check again voltage of 5V, Va, Va after replacing the fuse.
3) In case there are no voltage of 5V, Va, Vs, the board is failure, it need to replace the board.
Pic. 2.
Pic. 1.
< DMM mode >
A7
Pic. 1. Fuse check
Making
Revision
PDP TV
Symptom
A. Picture Problem
Y-Sus Board Checking Method(50R3)
Repair Process-Reference data
A8
A8
A9
▣ Check Method
① Check input voltages(5V, Va, Vs) at P103 connector.
② Check it is short or not between Vs and GND at P103 connector.
③ Check all of fuses open. (FS201, FS202, FS203, FS501)
④ Check voltage of diode , FET by using digital multi-meter.
② Check it is short or not between Vs and GND at P103 connector.
③ Check all of fuses open. (FS201, FS202, FS203, FS501)
④ Check voltage of diode , FET by using digital multi-meter.
▣ Measurement method
0.4V~0.5V
Q610,Q612
0.45V~0.55V
Q608,Q609
0.45V~0.55V
Q601,Q602
0.35V ~ 0.45V
Q603,Q605
D604,D605
HS602
0.35V ~ 0.45V
Forward
O.L. (Overload)
Reverse
D602
HS603
0.35V ~ 0.45V
Forward
O.L. (Overload)
Reverse
Position
Direction
Circuit No.
HS601
D610
Q606,Q607
Forward
0.35V ~ 0.45V
0.45V~0.55V
Reverse
O.L. (Overload)
▣ Specifications
Diode
FET
HS603
HS601
HS602
YSUS board
FS202
5V fuse
FS203
Vs fuse
FS201
Va fuse
P113
FS501
18V fuse
Making
Revision
PDP TV
Symptom
A. Picture Problem
Z-Sus Board Checking Method(50R3)
Repair Process-Reference data
A9
A9
① Check input voltages(5V, Va, Vs) at P203 connector.
② Check it is short or not between Vs and GND at P203 connector.
③ Check all of fuses open. (FS202)
④ Check voltage of diode , FET by using digital multi-meter.
② Check it is short or not between Vs and GND at P203 connector.
③ Check all of fuses open. (FS202)
④ Check voltage of diode , FET by using digital multi-meter.
▣ Measuring Method
▣ Specifications
0.45V~0.55V
Q102,Q103
0.5V ~ 0.6V
0.35V ~ 0.45V
Q106, Q109
Position
Direction
Circuit No.
HS101
D114,D118
Q107, Q110
Forward
0.35V ~ 0.45V
0.35V ~ 0.45V
Reverse
O.L. (Overload)
HS102
D109,D110,D108,D111 Q104,Q113,Q114
Forward
0.35V ~ 0.45V
Reverse
O.L. (Overload)
Diode
FET
ZSUS board
FS202
5V fuse
P203
HS102
HS101
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