A
B
D
C
E
2
1
3
5
7
4
6
RXD-M55-H/M55-N/M55-S/M55E-H/M55E-N/M55E-S
Y39-4252-70
Q13
Q14
D3
Q12
Q11
Q5
Q17
Q18
Q4
Q3
Q2
Q1
Q19
Q15
Q16
WH1
(Lch)
BIAS
(Rch)
BIAS
SYSTEM IC
PB/REC EQ.
REC (Rch)
CANCEL
BEAT
CN1
(REC/PAUSE)
MUTING
R/P
SW
CONT.
BIAS
SW
OSC
(105kHz)
BIAS OSC
PLAY (Lch)
PLAY (Lch)
REC (Rch)
ERASE
Rch
Lch
R/P
2/3
X29-CN72
: DTC124EUA or
Q5,11,12,18
D1-3
: 1SS133 or
: DTA124EUA or
: 2SC2785(F,E)
: 2SA1286-T11
Q19
Q15,16
Q17
: KTC3205 or
: KTC3200 or
Q13,14
Q8,9
Q6,7
: KRC103M or
IC1
Q1-4
: HA12230NT
: RK7002
Q8
D1
Q9
D2
CAPSTAN
CONT.
Q6
SOLENOID
CONT.
Q7
CN2
M
SOLENOID
END
PACK
REC-F
REC-R
PLAY
REC
RXD-M55-S (X28-32XX-XX)
RXD-M55-H (X28-320X-XX)
RXD-M55-N (X28-320X-XX)
UN5212
UN4212
2SC1845(F,E)
UN5112
2SC3940A(R,S)
HSS104A
B LINE
GND LINE
SIGNAL LINE
RECORDING LINE
RXD-M55E-H (X28-3202-70)
RXD-M55E-N (X28-3202-70)
RXD-M55E-S (X28-3202-70)
A
L3
VCC
6
5
4
3
2
1
R-REC
R-PLAY
GND
ERASE
L-PLAY
L-REC
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
RECRET
BINL
AINL
PBNFL
PBEQL
EQOL
TA
IL
PBOL
B1/1
1
A/B
A120/70
MUTE
RECIL
VCC
RECOL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
VREF
GND
BINR
AINR
PBNFR
PBEQR
EQOR
TA
IR
PBOR
MAOUT
MAI
IREF
RECIR
RIP
RECOR
47u25
C58
C57 6800P
C53 0.01
C54 8200P
C55 8200P
C56 0.022
R58 5.6K
R57 5.6K
1/4W
R60 3.3
+
1/4W
R54 10
10u50
C52
R56 18K
10uH
L4
1.5K
R53
1u50
C51
+
R51 1
1/4W
3.3
R59
R55 4.7K
1M
R26
1M
R28
1M
R25
1M
R27
10K
R36
R1 100K
R2 100K
C1 470P
C2 470P
10K
R10
100P
C10
0.01
C6
22K
R32
1u50
C35
8.2K
R8
10u50
C22
100u10
C31
1/4W
4.7
R31
100P
C9
10K
R9
C32 47u25
4.7u50
C33
10u50
C21
100
R34
0.01
C5
10K
R33
R7 8.2K
+
4.7u50
C19
4.7u50
C20
0.22u50
C18
10u50
C15
4.7K
R13
4.7K
R14
10u50
C16
0.22u50
C17
R15 2K
R16 2K
4.3K
R18
4.3K
R17
+
+
1K
R12
4.7u50
C12
4700P
C14
+
1K
R1
1
4.7u50
C1
1
4700P
C13
R5 5.1K
C7 0.039
+
5.1K
C8 0.039
15K
R24
15K
R23
220P
C26
220P
C25
10K
R19
10K
R20
C23 220P
C24 220P
330K
VR1
330K
VR2
+
+
L2 10mH
L1 10mH
15K
R22
15K
R21
1000P
C60
1000P
C59
5.6K
R61
5.6K
R62
13
MUTE
15
19
17
21
23
20
REC-F-SW
REC-R-SW
PLA
Y
-SW
PHOT
O
22
B.CANCEL
P
ACK-SW
R/P
18
A/B
NC
16
14
BIAS
1
5
3
9
7
11
6
M.GND
M+9V
SOL
CPM
10
12
REC IN LCH
M+9V
REC IN RCH
8
M.GND
RCH
4
LCH
T
A+9V
A.GND
2
Q1-4
1/4W
10K
R52
+
VCC
22
21
20
19
23
VCC
1
2
3
4
5
6
IC1
47K
47K
R38
1.8K
R40
1.8K
R37
23
19
20
21
22
2
3
4
R39
CPM
SOL
GND
PHOTO
7
8
6
5
1
5
6
7
8
PLAY-SW
REC-R-SW
REC-F-SW
PACK-SW
4
3
2
1
Q11,12
+9V
+9V
+9V
+9V
+9V
+9V
+9V
+9V
+9V
+9V
+9V
00-11
UNIT No.
AUSTRALIA
EUROPE
E
X1
DESTINATION
COUNTRY
U.S.A.
ABB.
K
NO
NO
YES YES
NO
NO
A
10
C9,
SHANGHAI
V
00-11
02-70
12-10
NO
NO
0-11
UNIT No.
EUROPE
COUNTRY
DESTINATION
ABB.
E1
NO
A
NO
C9,
10
GENERAL MARKET
M1
H1
KOREA
T2
U.K.
U.S.A.
K1
2-70
YES YES
0-11
UNIT No.
2-70
GENERAL MARKET
EUROPE
KOREA
U.K.
E2
T3
M2
H2
COUNTRY
DESTINATION
ABB.
YES
NO
YES
NO
A
C9,
10
AUSTRALIA
X2
+B
+9V
+9V
+9V
+9V
+
YES
EUROPE
COUNTRY
DESTINATION
ABB.
E4
2-70
UNIT No.
10
C9,
YES
A
YES
EUROPE
COUNTRY
DESTINATION
ABB.
E5
2-70
UNIT No.
10
C9,
YES
A
YES
EUROPE
COUNTRY
DESTINATION
ABB.
E3
2-70
UNIT No.
10
C9,
YES
A
R6
+
+
+
+
+
+
9.26V
5.8V
5.2V
4.7V
9.2V
0V
(REC MODE)
(REC MODE)
(REC MODE)
9.3V
9.3V
: 4.9V
PLAY
STOP : 1.5V
PLAY : 0V
REC/STOP : 4.9V
PLAY : 0V
REC : 4.8V
4.6V
4.6V
4.6V
4.6V
PLAY
: 4.2V
: 8.2V
REC
: 8.2V
REC
PLAY
: 4.2V
4.6V
4.6V
4.6V
4.6V
4.6V
4.6V
4.6V
4.6V
4.6V
1.2V
4.6V
4.4V
4.6V
9.2V
REC
: 4.2V
: 4.2V
REC
IC1
RXD-M55 (1/3)
(X28-3200-11)
(D40-1772-05)
CAUTION:
For contin-
ued safety, replace
safety critical compo-
nents only with manu-
facturer's recommend-
ed parts (refer to parts
list).
indicates safety
critical components.
For continued protec-
tion 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
insulated from the sup-
ply circuit) before the
appliance is returned to
the customer.
The DC voltage is an
actual reading mea-
sured with a high
impedance type volt-
meter with no signal
input. The measure-
ment value may vary
depending on the mea-
suring instruments
used or on the product.
DOLBY and the dou-
ble-D symbol are trade-
marks of Dolby Labora-
tories Licensing Corpo-
ration. Noise reduction
circuit made under
license from Dolby Lab-
oratories Licensing
Corporation.
A D - 5
