AE
AG
AI
AK
AM
AF
AH
AJ
AL
AN
2
1
3
5
7
4
6
RXD-951/951E/951W(K) (3/9)
RXD-A700/A900(K) (3/9)
(X28-2960-10)
RXD-V616/V818V/V919(K) (3/9)
CASSETTE MECHANISM UNIT
DECK MECHA (D40-1588-08)
H
IC6
B(RPE) MECHA
A(PB) MECHA
IC4
G
IC1
OUT-SERI.)
(IN-PARA.
8BIT SHIFT
REGISTER
(1/2)
(2/2)
IC2
(1/2)
IC3
(1/2)
ON:
PLAY
PLAY
ON:
B
HEAD SW
PLAY/REC
OSC
B
A
MTZJ2.7(B)
D5
HZS2.7N(B2) or
HSS104A
:
:
:
:
DTA124ESA or
UN4112
2SC1845(F,E)
DTC124ESA or
UN4212
Q9
Q10,11
Q12
: 1SS133 or
D1-4
2SC1740S(Q,R)
: 2SC2785(F,E) or
Q7,8
: 2SC2003(L,K)
Q5
: 2SC3246
Q1-4
: TC74HC166AP
IC6
: BA10393
IC5
: BA3126N
IC4
: BA328
IC2,3
: HA12209F
IC1
D2
D1
CN5
IC5
D5
DETECTOR
Q4
B
SOLENOID
SOLENOID
A
Q3
DRIVE
MOTOR
Q2
Q1
B-DECK
A-DECK
MOTOR
DRIVE
(A)
A TAPE
SPEED
SPEED
B TAPE
B
A
PIN
TEST
BIAS
CURRENT
CANCEL
BEAT
BIAS
BIAS AVR
CN6
CN3
CN4
ROTARY HEAD
(B MECHA)
(A MECHA)
PHOTO
REFLECTOR
REFLECTOR
PHOTO
IC5
L
R
Q10
Q11
Q12
Q9
Q5
D4
Q8
Q7
EH
7/9
X09-A/8
-CN14
IC3
B-PB EQ
PLAYBACK
LEVEL
L
R
WH1
E1
7/9
X09-A/8
-CN13
DOLBY
HAED AMP
A/B SEL
D3
(2/2)
R
L
LEVEL
PLAYBACK
R
L
A-PB EQ
IC2
(2/2)
CN2
CN1
5.6V
5.6V
: 9.1V
: 6.0V
CrO2
REC NOR
: 0V
: -0.4V
REC NOR
CrO2
-B LINE
+B LINE
0V
3.9V
0V
0V
6.1V
6.0V
0V
6.1V
6.1V
0.7V
9.0V
6.0V
6.1V
6.1V
6.0V
2.3V
6.1V
1.3V
6.1V
0V
0V
1.0V
1.0V
1.5V
6.0V
6.0V
6.1V
6.0V
5.7V
6.0V
6.1V
6.0V
6.0V
5.6V
2.3V
3.0V
: 0V
: 5.0V
: 0V
: 10.0V
: 0V
: 10.0V
12.4V
0V
11.0V
0V
12.3V
0V
0.7V
: 0.3V
: 6.1V
: 9.2V
CrO2
STOP/PLAY
REC NOR
: 9.2V
: 6.8V
REC NOR
CrO2
: 0V
STOP/PLAY
: -0.4V
: 0V
REC NOR
CrO2
: 9.1V
: 6.0V
REC NOR
CrO2
0V
0V
0V
0V
0V
OV
0V
0V
12.3V
12.3V
1.4V
5.2V
0.9V
0.9V
8.6V
5.4V
1.4V
B PLAY
REC
PLAY
B PLAY
B REC
0V
11.5V
0V
B REC
9.0V
0.9V
1.4V
5.5V
5.4V
1.4V
1.4V
C15
R21
1.5K
1.5K
R22
R103
1K
+
C69
1u50
100
R71
R72
100
22K
VR7
VR8
C49
C50
R15
220(B)
220(B)
6.2K
-B
+B
SIGNAL LINE
GND LINE
C16
C36
C29
C35
9
8
7
5
VCC
4
CONT
GND
2
1
3
6
P/B SW
GND
REC SW
P/B SW
GND
REC SW
5
13
DOLBY
B-NR
4
6
(HEAD PCB)
(RPE HEAD)
(HEAD PCB)
(PB HEAD)
A.PH
B.PH
RECORDING LINE
4.7K(B)
B CPM
B SOL
B-PH
A-PH
R/P
BEAT. C
A/B
BIAS
R MUTE
DOLBY
D R/P
A CPM
A SOL
CD CLK
PS LOAD
PS IN
NC
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
R93 1K
R92
R90
1K
11
R91 1K
22K
4.7K(B)
10K
R102
10K
11
17
19
13
12
6
5
16
17
R95
10K
R98 10K
R99 10K
20
18
R101
1K
C74 470P
0.01
C76
R100
10K
R97
10K
R96
10K
2.2K
R68
R67
2.2K
4.7K
R66
R65
4.7K
R69
13K
VR5
VR6
220
R70
Q7,8
10K
R34
10K
R33
R36
15K
R35
15K
L5 10mH
220P
220P
L6 10mH
1
2
3
4
5
L-PLAY
L-REC
A. GND
R-PLAY
R-REC
(A PH)
(HALF A)
MOTOR-(A)
MOTOR-(B)
+12V
(GND)
(GND)
SOL(-)
5
10 9
8
7
6
4
3
2
1
11
12
13
14
15
MOTOR(-)
(CRO A)
(PLAY A)
COM
COM
(PLAY B)
(CRO B)
MOTOR(-)
15 14 13 12 11
1
2
3
4
6
7
8
9
10
5
SOL(-)
(GND)
(GND)
+12V
MOTOR-(B)
MOTOR-(A)
(HALF B)
(B PH)
(INH A)
(NH B)
Lch(-)
GREEN
WHITE
Lch(+)
E(+)
GRAY
BLUE
Rch(-)
Rch(+)
RED
BLACK
E(-)
E(-)
BLACK
GRAY
E(+)
Lch(+)
WHITE
GREEN
Lch(-)
Rch(-)
BLUE
RED
Rch(+)
RED
Rch(+)
Lch(+)
WHITE
GREEN
Lch(-)
BLACK
E(-)
GRAY
E(+)
Rch(-)
BLUE
Rch(+)
RED
BLUE
GND
Lch(+)
WHITE
WHITE
Lch(+)
GND
BLUE
RED
Rch(+)
Lch(+)
WHITE
RED
Rch(+)
BLUE
COM(-)
RVS REC
FWD REC
Lch
Rch
ERASE
R PLAY
R REC
L REC
2
3
4
6
5
1
GND
EH
L PLAY
PHOTO
PACK
NC
MOTOR(A)
MOTOR(B)
MOTOR(+)
NC
NC
RVS REC
SOL
5
10
9
8
7
6
4
3
2
1
11
12
13
14
15
MOTOR(-)
CrO2
PLAY
FWD REC
COM
R89 620
10K
R87
R85
100K
R79
150K
110K
R81
22K
R83
5
6
-
+
7
4
1
+
-
2
8
3
R84
R82 110K
150K
R80
100K
R86
R88
10K
R73 10K
16
6
5
17
1/4W
0.01
C75
12
R76 10K
3
4
2
1
SOL
COM
NC
PLAY
CrO2
MOTOR(-)
15
14
13
12
11
1
2
3
4
6
7
8
9
10
5
SOL
NC
NC
NC
MOTOR(+)
MOTOR(B)
MOTOR(A)
NC
PACK
PHOTO
Lch
Rch
3
2
1
Lch
GND
Rch
VR4 100K(B)
VR3 100K(B)
220P
C52
22K
R58
R59
22K
C51
220P
C68
470P
R60
5.6K
R61
5.6K
0.01
C67
1/4W
+
C70 10u16
10K
R52
+
C63
4.7u35
R53
10
R54
R55
1/4W
3.3
1/4W
3.3
C65 0.01
R57 27K
C66 4700P
R56 27K
C64 4700P
4
3
2
6
1
L7
16
15
14
12
11
9
10
13
1
PS LOAD
VCC
2
R REC
3
DPSS
PS IN
5
A PLAY
B PLAY
6
A PACK
F REC
B PACK
8
CK
GND
7
4
+
(A)
(B)
(+)
(-)
MS15U
PLAY
CrO2
PACK
EMITTER
EMITTER
PACK
CrO2
PLAY
MS15U
(-)
(+)
(B)
(A)
2.2K
SOL
1
2
4
3
2.2K
75
R13
6.2K
R17
C25
0.022
1K
R64
C62 100u16
+
150K
R12 100K
C18 470P
C20
10u16
+
C22
390P
R16
150K
R18
C24
22u16
+
0.022
C26
2
1
-
+
3
R14
75
12
5V
11
D.GND
10
R-REC
9
L-REC
8
A. 12V
7
R-PLAY
6
A. GND
5
L-PLAY
4
MECH G
3
MECH 12V
2
BIAS G
BIAS 12V
1
R47 22K
R46 22K
+
C60 22u16
+
C59 22u16
R45 22K
R44 22K
16
17
19
20
+
C58
100u16
R43
10
R40
R41 5.1K
R42 750
R48 22K
R49 22K
R50 22K
R26 33K
+
C38 2.2u50
+
C40 0.1u50
C17 470P
R11 100K
C21
390P
+
10u16
C19
+
22u16
C23
C71
10u16
1/4W
R62
100
VR2
220(B)
220(B)
VR1
6
-
+
7
5
8
4
C46
0.47u50
2.2K
R32
+
C48 2.2u50
C45
2.2K
R31
4.3K
R27
C43
C41
+
2.2u50
100K
R38
+
C57
0.1u50
+
C47 2.2u50
R29 4.3K
+
0.47u50
+
10u16
+
C39 0.1u50
R25 24K
R37
100K
C56
0.01
+
C37 2.2u50
1
2
3
6800P
C32
L2
C34 1000P
R24 3.9K
+
0.47u50
C28 3300P
R20 1.5K
C30 1u50
+
C54 4700P
C12 3300P
+
1u50
R10 1.5K
L1
C27 3300P
R19 1.5K
+
1u50
C53 4700P
C11 3300P
R9 1.5K
1u50
+
+
C55 1u50
75
R4
3
+
-
1
2
C10
0.022
+
22u16
C8
R8
150K
R6 6.8K
390P
C6
+
10u16
C4
C2 560P
R2 100K
150K
+
C61 100u16
R63
1K
0.022
C9
R7
R5 6.8K
R3
75
C7
22u16
+
C3
10u16
+
390P
C5
R1 100K
C1 560P
4
8
5
7
+
-
6
BIAS SW
MS
DET
45K
100K
-
+
12K
15K
12K
15K
EQ
+
C44
2.2u50
R30 4.3K
4.3K
R28
+
C42
10u16
+
EQ
LPF
+
B-NR
DOLBY
29
MS DET
B:120/70
14
30
NC
NC
13
31
MS IN
NORM/HIGH
12
32
MA OUT
A:120/70
11
33
MAI
PB A/B
10
34
NC
NC
9
35
EQOUT
EQOUT
8
36
NC
NC
7
37
EQIN
EQIN
6
38
REC OUT
REC OUT
5
39
DET
DET(R)
4
40
PB OUT
PB OUT(R)
3
41
NC
NC
2
28
NC
NC
43
27
MS OUT
RIN(L)
44
26
BIAS N
BIN(L)
45
25
BIAS C
ABO(L)
46
24
NC
NC
47
23
VCC
AIN(L)
48
22
VCC
RIP
49
21
LM ON/OFF
GND
50
20
REC/PB
GND
51
19
NR ON/OFF
A IN(R)
52
18
NC
ABO(R)
53
17
RM ON/OFF
B IN(R)
54
16
BIAS ON/OFF
NC
55
1
BIAS1
BIAS2
42
15
56
RIN(R)
NC
C31
6800P 3
4
2
6
1
C33 1000P
R23 3.9K
0.47u50
+
1
R PLAY
2
3
4
R REC
L REC
L PLAY
6
GND
5
EH
1
Rch
2
3
GND
Lch
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+B
+12V
+12V
+12V
+B
+B
+B
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+B
+B
+B
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+5V
+5V
+5V
+5V
+5V
+5V
+12V
+12V
+5V
+5V
+5V
+5V
)
(
)
(
)
(
)
(
)
(
(
)
(
)
)
(
)
(
)
(
(
)
)
((
)
94-V0
E5D9003-1
TCI-A7S
TCI-A7S
E5D9003-1
94-V0
(
)
)
(
(
)
)
(
(
)
)
(
)
(
)
(
(
)
Y39-2950-10
RXD-951/A700/A900/V616/V818/V919
CAUTION: For continued safety,
replace safety critical components only
with manufacturer's recommended
parts (refer to parts list). indicates
safety critical components. For contin-
ued protection against risk of fire,
replace only with same type and rating
fuse(s). To reduce the risk of electric
shock, leakage-current or resistance
measurements shall be carried out
(exposed parts are acceptably insulat-
ed from the supply circuit) before the
appliance is returned to the customer.
DOLBY and the double-D symbol are trademarks of Dolby Lab-
oratories Licensing Corporation. Noise reduction circuit made
under license from Dolby Laboratories Licensing Corporation.
The DC voltage is an actual reading measured with a high impedance type voltmeter. The
measurement value may vary depending on the measuring instruments used or on the
product. Refer to the voltage dur ing PLAY unless otherwise specified; The value shown in
( ) is the voltage measured at the moment of STOP.
RXD-951(K)
PCBSD1,2(
98.12.14
17:12
y [ W 4
