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
CYLINDER APC SIGNAL
CYLINDER AFC SIGNAL
AUDIO SIGNAL(PB)
AUDIO SIGNAL(REC)
PLAYBACK COLOR SIGNAL
RECORD COLOR SIGNAL
PLAYBACK LUMINANCE SIGNAL
RECORD LUMINANCE SIGNAL
CAPSTAN AFC SIGNAL
R4111
20K
R4109
1.5K
R4113
330
R4102
120K
R4103
1K
R4104
1.5K
C4104
15P
CH
C4120
33P
CH
C4119
33P
CH
C4110
0.01
B
C4113
0.001
B
C4112
0.001
B
C4115
0.001
B
C4114
0.001
B
C4127
0.01
B
C4106
1F
C4102
0.1
B
C4103
10P
CH
C4105
0.33
F
C4108
1F
W801
0
L4101
100uH
C4107
220
6.3V
KA
IC4101_2
LA7411M
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
CD4102
8283_0212_00_000
1
2
CP4101_2
52492-0420
1
2
3
4
CP4102_1(CD5001)
52492-0520
1
2
3
4
5
CP4106(CD2001) 177640-6
1
2
3
4
5
6
CP4105
TKC-F09X-L1
1
2
3
4
5
6
7
8
9
CP4103(CP1002) TMC-W20X-A1
1
10
11
12
13
14
15
16
17
18
19
2
20
3
4
5
6
7
8
9
CP4104(CP4001) TMC-W16X-A1
1
10
11
12
13
14
15
16
2
3
4
5
6
7
8
9
Q4101
2SC2412K
BUFFER
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
CYL_PG-A
CYL+B-A
CYL_FG-A
GND_B
CYL_DRIVE_A
CYL_DRIVE_A
GND_B
CYL_FG-A
CYL_PG-A
GND_A
CYL+B-A
J-5
HEAD AMP SCHEMATIC DIAGRAM
43
42
41
40
39
44
45
44
46
NC
NC
NC
NC
NC
FROM/TO SYSCON
FROM/TO HEAD,AUDIO CONTROL
FROM/TO CYL
FROM/TO CYL
TO LOADING MOTOR
FROM/TO CAPSTAN DD UNIT
(HEAD AMP PCB)
PCB330
VE6773
CH2(L)F
CH1/2 S
CH1(R)F
A2
A1
PB OFF
REC ON
VCC
H CH
(LP)
OFF
ON
PB OFF
1.5
SP
EP
SW 30 REC MUTE
1.0
L CH
3.2
EP/SP
REC/PB
2.0
REC
PB
SW30
DET
ENVELOPE
0.1
1.2
0.2
0
0.45
0
2.2
1.1
0
2.9
5.0
5.0
0.9
0
2.1
0.7
0
2.16
0.7
0
0
NC
NC
NC
0.2
0.2
REC ON
PB OFF
VCC2
H.SYNC
AGC
5K
1K
DET
CURRENT AMP
REC
L
VCC A2
A1
REC ON
H
REC ON
PB OFF
REC ON
PB OFF
AGC
BUF
BUF
REC
PB
4.99
CYL DRIVE
CYL PG
CYL +B
CYL FG
CYL GND
CAP/M/F/R
CTL
VCC
FG
I LIMIT
V.REF
LDM+
LDM-
AE HEAD(+)
AE HEAD(-)
AUDIO PB
AUDIO REC
CTL+
CTL-
NC
H.SYNC
ENV.DET
GND
P.CON 5V
AE HEAD(-)
AE HEAD(+)
GND
V.REC ST-H
H.SW
VCO
CTL
VCC
FG
V.REF
I LIMIT
GND
CYL PG
CYL +B
CYL FG
CYL GND
CYL DRIVE
LDM+
LDM-
MOTOR GND
CTL+
CTL-
AUDIO PB
AUDIO REC
REC-Y/C
PB Y/C
2.2
1.6
5.0
CAP-M_F/R
FROM/TO Y/C
MOTOR GND
VCO
GND