Panasonic CY-VHD9401U Service Manual page 43

19 SCHEMATIC DIAGRAM -2
19.1. Main Block -1
L R
L
R
9V
9V
Q270,370
L
MUTE
YEANDTC323TK
0
9.0
2.3
0
IC370
AMP
0
R
2.3
0
YEANDTC323TK
R
YEAMPJ78L05AC
9.0
0
IC10
+5V REG
Q762
YEADDAN202KT
SWITCH
YEADDAN202KT YEANFB1F3PT1
0
0
0
YEADDAN202KT
Q760,761
LAMP DRIVE
The following symbols are
shown on the schematic diagram.
3V
5V 5V
9V
9V
AUDIO (L,R)
L
R
0 YEANA124EKTX
5.2 5.2
2.8
2.9
0.8
B1GDCFJJ0002
Q680-682
MUTE DRIVE
YEADAP202KTX
1.0
0
B1GBCFNN0004
0
L
R
5V
Q400,401,430,431
IR AMP
9V
9V 9V
IC371
AGC AMP
L
C1BB000007101 0
L
0.5
0.8 0
0.8
YEANA812T2
0
L
5.0
5.0
0
0
0.8
YEANA812T2
0.8 0
R 0.5
0 0
B1GBCFNN0004
0
5.0 Q10,11
IR AMP CONTROL
0
0
0
5V
YEAD1921BHC
E-4C280a
5V
5V
5V
R
5.2
5.2
0
0
0
0
5.4
0
5.2
4.8
5.1
0
B1GBCFJN0009
5V
Q631
0
0
BUFFER 0 C0JBAZ000525
0
Q656
5V
LED DRIVE
YEAD1921BHC
43
5V
0
5.4
5.1
5.2
5.1
0
0
0
0
IC601
0
CPU
0
2V/DIV, 50ms/DIV
C2DBJH000035
5.2
0.5V/DIV, 0.1ms/DIV
0
2V/DIV, 50us/DIV
1.5
1.6
2V/DIV, 50ms/DIV
3.3
2V/DIV, 2ms/DIV
0.5V/DIV, 0.1ms/DIV
0
5.2
0
2V/DIV, 2ms/DIV
2V/DIV, 2ms/DIV
0
0
5.2
2V/DIV, 2ms/DIV
5V 5V
0
5
B1GBCFNN0004
0
CY-VHD9401U MAIN-1
CY-VHD9401U
Q640
BUZZER DRIVE
B1GBCFNN0004
2 2
2.6
2.6
2
5.6 5.6
2.6
6.4
Q750,751,754
LED DRIVE
5V