September LCD TV 47LX9500
36
3D Troubleshooting: 3D Not Working Pg 2
3D Troubleshooting: 3D Not Working Pg 2
Q906 (Collector)
5.5V p/p 60 Hz
Q907 (Collector)
3.9V p/p 60 Hz
Open
1.6V
0V
3D_SYNC
3
Gnd
Gnd
Gnd
Gnd
2
Open
5.1V
0V
+5V_EMITTER
1
Diode
Check
Run
SBY
LABEL
Pin
"3D-Emitter" to P2401 "Main"
1
5) 5.1V
6) 0V
7) 0V
8) Gnd
4) 5.1V
3) 1.6V
2) 2.15V
1) 5.1V
Possible Main or
T-CON/3D has problems.
Replace T-CON/3D or
Main Board
Should be
OK
Replace
T-CON
(Formatter B/D)
B) 0.61V
E) Gnd
C) 0.03V
Q906
B) 0V
E) Gnd
C) 1.9V
Q907
B) 0V
E) Gnd
C) 3.5V
Q102
IC100
5.3V p/p 12 MHz
5.5V p/p
60 Hz
Continued from previous page
Check 3D_SYNC Line
• Main P7800 pin 50
• T-CON/3D P802 pin 2
Should be
5.5V p/p
60 Hz
1.6VDC
Check Q906, Q907 of
T-CON/3D Board
NG
NG
Additional Information
On the 3D Emitter Board
