Pb-Board Block And Schematic Diagram - Panasonic TH-42PZ77U Service Manual

TH-42PZ77U

15.6. PB-Board Block and Schematic Diagram

A
FAN CONTROL
IC850
REGULATOR
VOLTAGE
1 2
CONTROL
4 3
B
PB
H30
30
DR15V 1
FAN SOS 3
MAIN9V 4
FAN CONT 5
FAN SOS
SOS BLINKING TIMES:
LED 11 TIMES
PB
FAN CONTROL
C
D
E
TH-42PZ77U
PB-Board Schematic Diagram
1
FAN PB
31
+9V/+7.2V FAN A
1 1
2 2
D851
3 3
R851
PB
32
FAN B
1 1
2 2
D852
3 3
R852
PB
34
FAN C
1 1
2 2
D854
3 3
R854
PB
37
FAN D
1 1
2
2
D857
3 3
R857
2 3
PB31 PB32
+B FOR FAN
1 1
GND FOR FAN
2 2
3 3
D851 D852
MA2J11100L MA2J11100L
R851 R852
4.7k 4.7k
9V
C858
25V
0.1u
TP850
TP852
TP851
D860
MAZ81100ML
R874
R861
470
4.7k
TP853
C859
D862
25V
MAZ80330LL
0.1u !
PB30
TO
H-BOARD
(H30)
4 5
70
TO FAN
PB34 PB37
1 1
2 2
3 3
D854 D857
MA2J11100L MA2J11100L
R854 R857
4.7k 4.7k
9V
IC850
C0DBAZF00003
R869
1k
FAN CONTROL
REGULATOR
C869 C861
25V 25V
470u 0.1u
D859
B0JCME000037
R859 R871
13k
2k
C862 C860 L852
25V 25V
G0C101KA0167
0.1u 470u
R872
620
R867
0
PB-BOARD TNPA4243AES
TH-42PZ77U
PB-Board Schematic Diagram
6 7 8