LG 42PW350 - 42 PW350 3 D Sync Troubleshooting Flow Chart Page 3 of 3; Checking 3 D_SYNC Line

Check 3D_SYNC Line
Control P106 pin 79
Check 3D_SYNC Line
Pin 12
Control Board
42PW350 3D Sync Troubleshooting Flow Chart Page 3 of 3
44
June 2011 42PW350 Plasma
Continued from
previous page
3D_SYNC straight from
the MCM (IC702) chip.
Check 3D_SYNC Line
Main P1402 pin 2
3
D
_
SY
N
C
pi
n
1
2
To R1572
3D_SYNC straight
from (IC3202) chip.
Note: The 3D sync on the LVDS cable is not
the same as the 3D_SYNC route shown on
the Main board. This is just a TP.
GPI0 – 1
(pin 9, 10, 11)
Pin 9 or 10
should be high
3.48V p/p
60 Hz
1.59VDC
3.48V p/p
60 Hz
1.59VDC
Connector
has no ID
CONTROL BOARD
P/N: EBR71200701
X1
25 MHz
IC702
MCM
IC101
IC701
IC22
Serial
Flash
D1
IC703
L1
P105
P107 P108
P22 n/c
Auto Gen
VS_DA
P2
P106
IC53
IC11
3.3V from IC53
Pins 41~43
n/c Upgrades
3.3V from IC53
Pins 8~10
4.94V
1.05V
1.06V
1.05V
3.3V 1.8V
1.8V On
3.31V
3.27V
1
2
3
2
1
2
3
2
12
3
DDR
Memory
3D-Sync
Pin 50
3.48V p/p 60 Hz
IC101
Micro/
Video
Processor
P1401
IC1400
P902
1
2
3
2
P1404
1
2
3
2
IC1401
IC700
P700
1
2
3
2
IC1406
IC506
IC504
IC1407
IC1202
123
1
2
3
IC600
IC507
IC1404
L1402
IC502
L503
Q501
L506
IC1201
A2 A1
C
D200
IC103
Q901
L502
Q1401
C
B
E
C
B
E
Q1402
X1400
C
BE
Q1400
P501
X200
24Mhz
L700L701
L702
L703
R-R+L-L+
D501
IC501
TUNER
MAIN BOARD
p/n: EBT61267425 AUSLLJR
Other Main Boards
used
p/n: EBR72942901
AUSLLHR
C
BE
D
S
G
24Mhz
18. IF p
17. IF n
16. IF AGC
15. Reset
14. 3.3V
13. 1.26V
12. GND
11. CVBS
10. NC
9. SIF
8. NC
7. SDA
6. SCL
5. NC
4. NC
3. 5V
2. NC
1. NC
TU1300
3D Formatter
+3.3V Regulator
P1401
LVDS
P106
LVDS
Motion Remote Board
Pin 12 3D-Sync R1572
Front side of Board
3.48V p/p
60 Hz
1.59VDC