Table of Contents
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MAIN I (POWER SUPPLY/SYSTEM CONTROL/SERVO/OPERATION)
CAPSTAN SERVO
CYLINDER SERVO
POWER SUPPLY C.B.A.
HOT CIRCUIT. BE CAREFUL AND USE AN ISOLATION TRANSFORMER WHEN SERVICING.
L1001
ELF18D290A
D1001
F1001
10
/ELF18D290A-P
S1WBA40
AC CORD
1.6A 125V
125V/1.6A
/VLQS0157
/S1WBA60
2
C1027
C1001
R1004
0.01
0.01
33K
125V
125V
2W
1
C1006
C1002
C1004
220P
3300P
/500V
A,C
82/200V
125V
D,E
120/200V
C1025
R1001
100P
2.7M
125V
1/2W
Q1001
C1003
TP1001
R1003
2SC4533LP.KT
9
3300P
0
330K
/2SC5130LF608
125V
1/2W
(SWITCHING)
Q1002
2SD1458
SWITCHING
CAUTION:FORCONTINUEDPROTECTIONAGAINSTFIREHAZARD,
CONTROL
0.3
REPLACEONLYWITHTHESAMETYPE1.6A125VFUSE.
0.6
0
ATTENTION:POURUNEPROTECTIONCONTINUELESRISQUES
^
C1009
D'INCENDIE
N'UTILISERQUEDESFUSIBLEDEMEME
0.01
1.6A 125V
TYPE1.6A125V
D1003
ERA18-04
8
NOTE;THE VOLTAGE FOR PARTS IN HOT
CIRCUIT IS MEASURED USING TP1001
AS A COMMON TERMINAL.
R1008
3900
R1006
D1016
R1007
MA165-TA5.VT
100
2.2
5.1
4
1
IC1001
PS2501-1-X
ON3131-R.KT
/
UNLESS OTHERWISE SPECIFIED:
7
ERROR
3
2
WATTAGE OF RESISTORS IS
1/4W.
VOLTAGE
0.6
4.4
DET
(77)
(84)
N5
H9
Q6002
SWITCHING
REC-ON
(11.9)
12.0
(7)
N6
0.5
6
R6004
(11.2)
33K
(8)
N6
12.0
R6006
R6005
10K
22K
D,E
C6204
R6001
R6002
R6003
0.01
470
470
470
1/8W
1/8W
1/8W
D6001
R6214
VEKS5201
390K
5
SENSOR LED
(12)
N6
(52)
N3
(18)
N5
R6207
(13)
N6
22K
(14)
N6
TP6011
9.3
Q6001
9.3
R6036
R6206
2700
1/4W
0.3
12K
C6202
R6208
SENSOR LED
33/6.3V
82K
DRIVE
C6201
33/6.3V
4
Q6003
(11.2)
12.0
(5.1)
SWITCHING
0
DELAY REC
(4.4)
ON-ON
0
D6204
(15)
N6
(89)
M1
TP6013
2.6
(102)
H7
3
(53)
N3
(81)
H10
(83)
G7
(21)
N5
2
1
(80)H10
(22)
N5
A
B
C
17
G1
F7
/POWER SUPPLY
SCHEMATIC DIAGRAM
(A,C,D,E)
NOTE:
IMPORTANT SAFETY NOTICE:
FOR SCHEMATIC AND C.B.A. DIAGRAM NOTES,
COMPONENTS IDENTIFIED BY THE SIGN
REFER TO BEGINNING OF SCHEMATIC SECTION (SECTION III).
SPECIAL CHARACTERISTICS IMPORTANT FOR SAFETY.
WHEN REPLACING ANY OF THESE COMPONENTS,
USE ONLY THE SPECIFIED PARTS.
T1001
VTPS0034
R1010
D1005
P1001
P1051
/ETS28AD1F5AC
10
MA188
7
UNSW +37V
7
C1005
1
7
6
UNSW +14V
6
4.7/200V
C1010
1000P
C1011
2
UNSW -30V
2
D1002
L1002
4.7/50V
ERA18 -04
5
UNSW +5V
(SYS.CTL)
5
22
8
/EG01
4
UNSW +5V
(VIDEO)
4
/EG01LFH1A
3
POWER DOWN
(L)
3
/SFR104S
D1006
C1013
/RMPG06J
6203
ERB32-01L3
C1012
D1015
1
GND
1
A,C
330/18V
MA2180LA
/RU2YXLFC1
330/18V
9
F+
9
L1006
/1N4746ARL
VLPS 0005
D
ERC30-01L3
8
F-
8
D,E
/1N4746A-T
3
/RU3YXLFC1
(18V)
9
R1011
D1007
PR1054
10
A,C
MA188
A,C
UNH00010FA
4.7
D,E
EG01
D,E
/UNH000600A
10
D1008
A,C
D,E
/ICP-N38-TP1
D2S4M
/ERB83-004
ERB-81-004
C1014
/VSFS0029D25
WF31
4.7/50V
/EK13/EK13F7
/RK14
133.5
0.3
/ERB83-004G1
11
0
L1003
C1030
C1016
PR1001
0.018
9
UN10015
330/18V
C1017
/ICP-F38
1000
12
/ICP-F38-1
J1051
R1005
/6.3V
/VSF0029D25
56
D1009
D,E
1W
A,C
MA178
AK03
/1SS137T-77
/1GWJ43
6
13
C1052
10/16V
C1019
100/6.3V
C1007
0.1
5
14
2200
C1021
C1023
R1014
0.01
1/50V
220
C1018
R1017
Q1005
R1019
Q1003
5.1
10K
0.1
2SB641(R)
3900
2SD636(Q)
4.7
POWER
ERROR
R1020
DOWN-OFF
VOLTAGE
6800
5.2
4.1
DET
D1012
0
D1011
MA858
0.1
Q1004
MA4051NH
-0.6
R1022
2SB641(Q)
R1015
D1013
(100)
(5.1V)
R1018
220
220
4.1
ERROR
N7
R1016
MA165
18K
5600
4.4
VOLTAGE DET
VJBS1002
R6023
(11)
56K
N6
C6008
0.1
C6009
100P
C6010
100P
WF26
TP6205
2.6
R6222
82K
R6219
390K
R6218
180K
A,C
150K
D,E
2.7
C6205
C6206
TP6201
R6215
1000P
TP6208
TP6202
0.01
150K
2.5
2.3
25
24
23
22
21
20
19
18
R6209
2.3 2.6 2.7 0.1 2.6
4.4
5.1
220K
A,C
C6203
0.01
180K
D,E
26
2.6
27
4.1
28
5.1
D,E
R6011
1K
29
0
R6017
1K
30
5.1
V-LOCK PLUSE
R6018
1K
STEREO (H)
CAP PHASE ERROR
5.1
31
/MONO (L)
CAP SPEED ERROR
32
GND
C6005
15P
C6003
0.1
CYL PHASE ERROR
33
2.6
OSC1
C6006
12P
14MHz
CYL SPEED ERROR
2.6
34
OSC2
X6001
VSX0191-T
OSD-CS (L)
5.1
35
VDD
DATA SLICER CS (L)
C6002
0.1
36
AUDIO DEFEAT (H)
(5.1)
MAIN (H)/SAP (L)
37
VIDEO DELAY REC (H)
0
38
0
CAP TORQUE LIMIT 2
D,E
R6092
220
(0)
39
Hi-Fi HEAD SW
2.6
R6210
4.7M
40
2.2
H-ROLL ACCELERATION
SYSTEM CONTROL/SERVO/TIMER
R6211
220
MICROPROCESSOR
41
2.4
FORCED ACCELERATION
R6202
100K
42
0.1
CAP REV (H)/STOP (M)/FWD (L)
R6203
R6212
3300
43
5.0
CAP TORQUE LIMIT 1
33K
IR DATA
44
2.6
7.16MHz
+12V POWER ON (L)
45
2.6
BEEPER
Hi-Fi (H)/NORMAL (L)
R6205
D,E
R6095
1K
R6204
(5.2)
46
PB Hi-Fi AUDIO (H)
AIP CTL SIGNAL
24K
1K
4.5
R6019
22K
1/8W
SPATIALIZER CONTROL (H/L/OFF)
47
5.0
R6012
10K
48
0
5.1
49
5.1
50
5.1
0
0
0
5.2
3.0
2.4 2.6
51
52 53 54 55 56 57
58 59 60 61 62 63
D,E
R6213
R6093
10K
47K
TP6209
2.4
R6216
2200
C6209
PG SHIFTER
C6207
R6201
0.039
100KB
TP6010
Z
Z
5.1
R6096
R6098
1500
10K
R6015
5.6K
C6028
R6111
10K
1000P
(24) (65)
(64)
(63)
(17)
(16)
(1)
(54)
(19)
(20)
(50)
N5
N1
N1
N1
N6 N6
N7
N3
N5
N5
N3
D
E
F
HAVE
U6301 VEKS5442
INFRARED
(69)
(70)
(91)
IR RECEIVER
RECEIVER
M9
M9
M9
OUT GND VCC
UNIT
1
2
3
R6346
47
(81)
A3
C6306
C6307
(4)
N6
47
0.1
C6305
47/6.3V
/6.3V
R1055
120
A,C 33 D,E
1/4W
(76)
N7
44
43
42
(2) N7
(-16.2)
(-29.2)
-20.5
(-29.0)
(80)
A1
-11.7
-16.0
-20.3
(88)
N6
(61)
M9
(-20.7)
1
SEGMENT
g
-16.5
(101)
M9
(72)
L9
(-24.8)
2
SEGMENT
h
(75)
M9
-28.9
(96)
L9
3
-24.9
SEGMENT
i
Z
(97)
L9
SEGMENT
f
4
SEGMENT
j
-20.9
R1057
(98)
L9
5
-25.2
GRID
1G
680
1/4W
(66)
L9
6
-25.2
GRID
2G
Q1051
D,E
(67)
L9
A,C
7
-25.2
GRID
3G
2SC3852
2SD2159(T)
/2SD1776(P,Q)
(68)
L9
(-29.2)
GRID
4G
/2SD1581(T)
8
/2SD2375(P,Q)
-25.0
+12V
9
5.2
KEY DATA
0
TP1058
REGULATOR
12.0
13.2
10
5.2
KEY DATA
1
12.0
(84) B7
(85)M7
11
5.2
KEY DATA
2
D1051
12.6
MA4100N
(10V)
5.2
2.6
2.6
5.1
R1052
12
13
14
12K
A,C
D1052
15K
D,E
Z
1/4W
D1053
R6321
R1053
10K
C6320
0.01
15K
1/4W
C1051
1/4W
D,E
0.47/50V
12.6
Q1052
Z
0.7
2.6
+12V
R1051
Q6304
C6308
REGULATOR
4700
0.01
2.6
(BUFFER)
R6320
180
(83)
(102)
A3
A3
(60)
(74)
(28) (10) (9) (30)
(31)
(29)
K9
K7
N5
N6 N6
N5
N5
N5
SWITCHING
R6024
D6003
56K
R6038
POWER ON-ON
56
R6032
1/4W
R6031
10K
3300
R6033
C6016
Q6008
10K
470/6.3V
IC6001
RESET
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
4.5 5.1 1.3
5.1
(5.0)
0.1 0.1 0.1 0.1
5.1
(5.1)
0.2 0.3
0.1 1.4
5.1
0.1
0.1
100
99
0.2
Z
R6065
R6039
98
22K
22K
0.1
97
2.6
KEY DATA 0
R6040
22K
MODE SW POSITION A
96
/
0.1
KEY DATA 1
R6041
22K
/
MODE SW POSITION B
5.2
95
R6042
22K
KEY DATA 2
5.2
94
/
MODE SW POSITION C
R6043
22K
KEY DATA 3
5.2
93
MODE SW POSITION D
/
AUDIO MUTE (H)
KEY DATA 4
5.0
92
TV (H)/VCR (L)
KEY DATA 5
5.2
91
SENSOR LED ON (H)/SCAN 3
KEY DATA 6
5.2
90
ENVELOPE DET
KEY DATA 7
5.2
89
HEAD AMP SW
KEY DATA 8
5.2
88
ROTARY SW
IC6001
MTS SIGNAL (L)
5.2
87
MN675048A3J
SAP SIGNAL (L)
5.2
86
R6051
10K
(3.7)
ENVELOPE VOLTAGE
85
5.1
R6052
10K
TAKEUP REEL PULSE/SERVICE (L)
84
TAKEUP PHOTO TR (L)
5.1
83
SUPPLY PHOTO TR (L)
5.1
82
R6055
22K
0
SIGNAL (L)
81
R6056
22K
PB CTL PULSE
AFC
2.6
80
R6068
22K
79
CH FREQUENCY LOCK (L)
0.1
SIGNAL LINE (H)
5.1
78
R6058
22K
SAFETY TAB
0
77
BROKEN (H)
V-SYNC
1.2
76
C6225
(2.6) (2.6)
0.1
2.6
2.6
2.6
2.6 2.6
1.2
2.6
2.6
0
0
0
5.1
2.6
2.6
64 65
66 67 68 69 70
71 72 73 74 75
TP6207
C6227
4700P
2.6
WF27
0
C6223
R6229
D6201
0.01
TP6009
0
5.1
4.7/25V
C6221
C6217
22/6.3V
0.1
2.6
TP6203
C6224
C6228
WF24
100/6.3V
0.1
C6212
TP6204
0.1
1.2
WF25
C6222
R6230
D6203
D6202
C6214
2700P
2200
2700P
(45)
(23)
(62)
(26)
(82)
(87)
(86)
N1
N5
N1
N1
N1
N3
N5
G
H
I
DP6301 VEKS5381
(DISPLAY TUBE)
(92)
(5)
(93)
(94)
M9
N6
M9
M9
D6324
MA4068-M
R6358
(6.8V)
22K
41
40
39
38
37
36
35
34
-29.4
5.1
(-25.0) (-17.0)
-17.0
-20.9
j
F+ F+
4G 3G
2G 1G
i
33
1
2
3
4
5
6 7
8
9 10 11 12 13 14 15 16 17 18 19 20
32
(68) (67) (66) (98) (97) (96) (101)(61) (69)
31
H9 H9 H9 H9 H9 H9 H9 H10 I10
30
(72)
H9
29
IC6301
R6350
82
1/4W
T47C216FF911
28
INDICATOR
75
A,C
PANEL CONTROL
R6351
82
D,E
27
1/4W
(71)
N5
75
A,C
SERIAL CLOCK
4.5
26
R6352
100
D,E
R6316
100
1/4W
(60)
F7
SERIAL DATA
1
5.1
25
PANEL CONTROL CS (L)
(73) N5
(51)
N3
SERIAL DATA
0
4.4
24
5.1
23
TP6301
1.8
1.7
1.8
1.3
C6301
15
16
17
18
19
20
21
22
100P
SW6309
SW6310
CH UP
PLAY
SW6306
SW6307
SW6308
X6301
EFOEC7164T4
CH DOWN
REC/TIME
STOP/EJECT
SW6301
SW6302
SW6303
SW6304
POWER
TV/VCR
FF/CUE
REW/REVIEW
(74)
G7
5.1
4.4
Q6005
0.1
2SB710(Q)
0.8
Q6007
R6037
Q6006
5.1
DTA143EK
390
R6109
SWITCHING
R6110
1/4W
0.1
POWER ON-ON
10K
IC6001
10K
RESET
IC6004
5.1
MN12821-RTX
(IC6001 RESET)
RESET
5.1
D6004
5.1
0
R6060
1
R6061
R6059
4.7M
C6019
D6005
1K
1800
100/6.3V
R6067
5600
R6099
47K
IC6003
R6034
10K
XRA6418N
R6035
10K
LOADING
CONTROL
MOTOR
LOGIC
DRIVE
THERMAL
SHUT DOWN
1
2
3
C6026
0.01
R6062
220K
0
C6027
0.01
15K
R6063
R6064
15K
R6066
22K
Z
J6003
(3.7)
TP6003
5.1
D6007
D,E
D6011
Z
D6015
Z
A,C
R6078
D6008
Z
D6012
Z
D6016
Z
R6079
Z
D6009
Z
D6013
Z
D6017
J6007
Z
R6080
D6010
Z
Z
D6014
Z
D6018
J6008
Z
R6081
Z
D6021
Z
D6019
Z
D6020
Z
J6009
R6082
Z
R6076
J6010
22K
R6077
22K
R6073
R6075
R6069
R6070
IC6002
TP6007
47K
1200
68K
68K
VEKS5202
TP6004
TP6005
0
TP6001
TAKEUP
5.1
5.1
5.1
5.1
REEL SENSOR
1.3
1
4
R6074
Q6010
2700
Q6009
VEKS5200
R6071
VEKS5200
2
3
1/4W
TAKEUP
820
SUPPLY
1.3
PHOTO TR
1/4W
PHOTO TR
(44)
(43)
(41)
(6)
(89)
N4
N4
N4
N6
A4
J
K
L
h g
f
e
d
c
b
a
F-
F-
R6353
(70)
(91)
(92)
(93) (94)
(75)
47K
I10
I10
J10
J10
J10
H9
(85) (100) (76)
H8
F7
H10
J6002
(FOIL CONNECTION)
TO MAIN II
(1) E1
1
UNSW +5V (VIDEO)
(2)
H10
Z
2
UNSW +5V (SYS.CTL)
(3)
N1
3
UNSW +14V
(4) H10
4
UNSW +37V
(5)
J10
5
UNSW -30V
(6)
K1
2
3
6
SW +12V
(7)
A6
7
DELAY REC +12V
(8)
A6
8
Hi-Fi DELAY REC (H)
(9)
G7
C6021
9
VIDEO EE (H)
(10)
G7
0.01
10
CUE/REV/SS (L)
(11)
11
V-LOCK PULSE
(88)
H10
(12)
A5
12
OSD-CS (L)
(13)
A5
13
MAIN (H)/SAP (L)
(14)
A4
14
STEREO (H)/MONO (L)
(15)
A4
15
Hi-Fi HEAD SW
(16)
D1
16
7.16MHz
(17)
D1
AIP CTL SIGNAL
(18)
A5
18
AUDIO DEFEAT (H)
(19)
F1
GND
19
INPUT SELECT 1
(20)
F1
4
5
6
7
8
9
20
INPUT SELECT 2
(21)
A3
21
Hi-Fi (H)/NORMAL (L)
0
13.2
1.8
1.8
(22)
C1
(77)
A7
22
PB Hi-Fi AUDIO (H)
(23)
I1
23
SIGNAL LINE (H)
(24)
C1
24
CYL ERROR
(25)
N1
25
V-REF
(73)
K9
(26)
26
CYL PG/FG
27
HEAD SW
(28)
G7
28
SERIAL DATA 0
R6008
(29)
H7
R6007
29
PB (L)
8.2
8.2
(71)
K9
(30)
G7
30
SERIAL CLOCK
1.2W
1.2W
(31)
G7
31
SP (L)/LP (M)/SLP (H)
32
AUDIO MUTE (H)
33
DTS CS (H)
34
TV (H)/VCR (L)
35
36
ENVELOPE DET
37
HEAD AMP SW
38
ROTARY SW
39
SAP SIGNAL (L)
40
MTS SIGNAL (L)
(41)
J1
41
ENVELOPE VOLTAGE
42
CH FREQUENCY LOCK (L)
(43)
J1
43
43
SIGNAL (L)
(44)
J1
44
AFC
(45)
I1
45
V-SYNC
(46)
N2
46
AUDIO HEAD
(47)
N2
47
AUDIO HEAD
(48)
N2
48
AUDIO ERASE HEAD
(49)
N2
49
AUDIO ERASE HEAD
(50)
F1
50
EDS CLOCK DATA
(51)
L9
51
SERIAL DATA 1
(52)
A5
52
DATA SLICER CS (L)
(53)
A3
53
BEEPER
(54)
F1
54
SPATIALIZER CTL
LOCATION GRID NO. IN MAIN II
SCHEMATIC DIAGRAM:
O3~O6
P6201
TO CAPSTAN MOTOR DRIVE
(47)
N3
22
AUDIO HEAD
P2501-
22
(49)
N3
19
AUDIO ERASE HEAD
P2501-
19
(48)
N3
20
AUDIO ERASE HEAD
P2501-
20
(46)
N3
21
AUDIO HEAD
P2501-
21
1
MODE SW POSITION A
P2501-
1
15
MODE SW POSITION B
P2501-
15
16
MODE SW POSITION C
P2501-
16
2
MODE SW POSITION D
P2501-
2
14
UNSW +5V (SYS.CTL)
P2501-
14
10
GND
TP6008
P2501-
10
(86)
H1
0
18
CONTROL HEAD
P2501-
18
(87)
H1
17
CONTROL HEAD GND
P2501-
17
(62)
G1
5
CAP FG (+)
P2501-
5
(63)
D1
11
CAP TORQUE LIMIT
P2501-
11
(64)
D1
SAFETY
9
REV (H)/STOP (M)/FWD (L)
P2501-
9
(65)
C1
TAB SW
7
CAP ERROR
P2501-
7
UNLESS OTHERWISE SPECIFIED;
(25)
N5
8
V-REF
SW6001
P2501-
8
PNP TRANSISTORS IS 2SB709(R),
(82) G1
6
VSHS0051
J6004
CAP FG (-)
P2501-
6
NPN TRANSISTORS IS 2SD601(R),
4
DIODES IS MA165,
LOADING MOTOR (-)
P2501-
4
SWITCHES IS EVQ21309K AND
3
LOADING MOTOR (+)
P2501-
3
(3)
N6
WATTAGE OF RESISTORS IS 1/10W
J6005
12
UNSW +14V
P2501-
12
13
GND
P2501-
13
VJBS6001
M
N
O
P
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