LG 50PK950 Training Manual page 134

50PK950 Main Front Layout Drawing
50PK950 Main Front Layout Drawing
P400 Main to P813 SMPS
Pin Label STBY Run Diode
a
1, 2 17V 0V 17.3V
Open
3, 4 Gnd Gnd Gnd
Gnd
5, 7 5V 0.4V 5.17V
1.21V
c
8 Error Det 3.47V 4.1V
1.84V
9-12 Gnd
Gnd Gnd
Gnd
13-14 Stby 5V 3.49V 5.13V
1.24V
a
15 RL_ON 0V 3.26V 1.93V
d
16 AC_Det 0V 4.06V 1.93V
b
17 M5_ON 0V 3.28V 1.93V
e
18 Auto_Gnd Gnd Gnd Gnd
P703 (Main) to P100 (Ft IR)
Pin Label STBY Run Diode
1 IR 2.82V 2.82V 2.68V
Gnd Gnd Gnd Gnd
2
Key 1 3.14V 3.13V 1.83V
3
Key 2 3.28V 3.28V 1.83V
4
LED-R 3.15V 0V 1.87V
5
Gnd Gnd Gnd Gnd
6
7
SCL 0.57V 3.28V 1.82V
8 SDA 0.8V 3.28V 1.82V
9
Gnd Gnd Gnd Gnd
10 3.3V_ST 3.28V 3.28V 1.24V
11 3.3V_Multi 0.42V 5.17V 1.24V
0V 0V 1.7V
12 LED W
P1001
P702
10MHz
X701
X700
32.768khz
P700
n/c
P902
IC700
Q900
D
S
G
D
S
G
Q901
SW700
P703
IC300
IC705
Other
Main
p/n:
IC200
To
Speakers
(All Pins
8.63V)
Q?
3 1
L406
IC401
IC405
2
IC400
IC603 IC605
MAIN BOARD
p/n: EBT60955910
p/n: EBT60955910 50PK950-UA AUSALHR
p/n: EBR68027905 50PK950-UA AUSALJR
p/n: EBT60955914 50PK950-UA AUSALUR
p/n: EBT60955914 50PK950-UA AUSLLUR
134
October 2010
P400
IC404
P900
IC402
n/c
3
2
1
L408
IC406
IC500
X900
54MHz
IC1102
3 2 1
IC1101
IC403
TU1400
TDVJ-H001F
18. IF p
Digital Video
17. IF n
16. IF AGC C
15. Reset
Q1402
14. 3.3V
13. 1.26V
B E
12. GND
Analog Video 11. CVBS
10. NC
9. SIF
8. NC
7. SDA
6. SCL
5. NC
4. NC
3. 5V
2. NC
1. NC
50PK950 Plasma