Panasonic TH-50PB2E / TH-65PB2E Service Manual / Other ▷ View online
P module
A module
Check the F15 line
P module
Check the short circuit
between A16 11pin and
GND
between A16 11pin and
GND
Check the short circuit
between P6 11pin and
GND?
between P6 11pin and
GND?
< F15V line power supply chart >
2 Times Blinking (abnormal F15V)
A
DS
P
A16
P6 F15V
A13
DS13
F15V
10,11
5-7
4
5-7
4
15V
LAN15V
9V
A1
1-5
7-12
DS1
64-68
57-62
F1.5V
F3.3V
F1.2V
5V
9V
10,11
Remove the cable
connected to P6
connected to P6
No short
A16
P6
F5V
Shorted
Shorted
No short
A module
< F5V line power supply chart >
5 Times Blinking (abnormal F5V)
SS module
SC module
No short
shorted on SC20
Remove the cables connected
SC20 and SS33.
SC20 and SS33.
P module
shorted on A20
shorted on SS33
Check the short circuit.
between
between
SC20 SRV P5V and GND
SS33 SRV P5V and GND
A20 1pin and GND
SS33 SRV P5V and GND
A20 1pin and GND
A
SC
SS
SC20
SS33
A20
A33
F5V
1
4
5V
P15V
30
17
SRV P5V
SRV P5V
SC20
SS33
A20
6 Times Blinking
(abnormal power recovery / FFC connection failure)
SC module
Check the short circuit
between
between
Vsus -VFG
VFG -GND
VAD -GND
VFG -GND
VAD -GND
FFC connection failure
YES
NO
Reconnect the
FFC
FFC
SC or A module (SC >> A)
Vsus
VFG
GND
VAD
If these are shorted, Power Recovery Voltage becomes abnormal.
6 Blinks Factor
7 Blinks Factor
SC
SD
SU
SD42
SU41
Panel
Recovery
Floating
A
Control
The power recovery voltage is controlled by
A board signal and is generated in SC board.
A board signal and is generated in SC board.
Shorted
No short
7 Times Blinking (abnormal floating voltage)(1/3)
Check the short circuit
between
between
TPSC1 and VFG on SC
VFO and VFG on SU/SD
VFO and VFG on SU/SD
Shorted
No short
Shorted SC/SU/SD
module
module
Check the short circuit
between
VF5V and VFG on SU/SD
between
VF5V and VFG on SU/SD
Remove SU41/SD42
connector
connector
Shorted SU/SD
module
And SC module
module
And SC module
Continue to
“Check 2”
Check 1
< VFO/VF5V line power supply chart>
SC
SU
41
VFO
VF5V
SU
SD
SD
42
VFO
VF5V
TPSC1
VFG
Each voltages (VFO, VF5V) are generated between these and VFG.
Then, these voltages are supplied to the scan driver IC.
Then, these voltages are supplied to the scan driver IC.
Though replace all boards shorted, if 7 times
blinking remains, it is highly possible that PDP
panel is defective also.
In this case, SU / SD / SC board breaks again.
blinking remains, it is highly possible that PDP
panel is defective also.
In this case, SU / SD / SC board breaks again.
Shorted
No short
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