A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
IC4101_1
LA70001M-TRM
HEAD AMP
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
3
4
5
6
7
8
9
CP4101_1
TOC-T04X-A1
1
2
3
4
TP4102
ENV
TP4101
H.SW
R4104
22K
R4105
1K
R4107
680
R4112
1.8K
+-1%
R4111
100
R4101
27K
R4106
1K
R4109
470
C4126
1F
C4119
33P CH
C4134
0.01
B
C4122
1 F
C4102
0.01 B
C4124
33P CH
C4129
0.1
B
C4131
0.01 B
C4103
0.1
B
C4128
22P
CH
C4106
33P CH
C4101
220P
CH
C4130
47
6.3V
KS
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
DURING PLAYBACK
MEASURED WITH THE DIGITAL TESTER
NOTE:
THE DC VOLTAGE AT EACH PART WAS
W819
W854
W805
L4102
100uH
L4101
22uH
SP-L/LP-M/EP-H
H.SW
ENV.DET
V.REC_ST-H
GND
PB-Y/C_REC-C
REC-Y
SYNC_OUT
GND
P.CON+5V[A]
FROM/TO CYL
HIGH
LOW
1.5
1.0
EP
SP
FROM POWER(VCR)
FROM/TO Y/C/AUDIO
FROM/TO IF/CHROMA
FROM/TO SYSCON/SERVO
HEAD AMP SCHEMATIC DIAGRAM
39
38
40
41
42
43
46
45
44
G-18
G-17
PCB010
VM8135
NC
NC
NC
NC
NC
CH2(L)F
CH1/2 S
CH1(R)F
EP/SP
H.SYNC
1.5
SW 30
H CH
L CH
PB OFF
REC ON
VCC
AMP
3.0
1.0
ATT
AGC
VCC
AMP
REC ON
PB OFF
REC
PB
CURRENT
1K
BIAS
ENVELOPE
DET
10K
REC OFF
PB ON
H L
SW30
PLL 5V
H.SYNC
AGC-DET
REC/MUTE/PB
REC
RECMUTE
PB
0
0
2.0
0
0
0
0
0
0
0
2.0
0
4.9
4.9
0
2.0
2.4
0.6
0
1.7
3.5
1.2
1.6
0
