AI
Z
AB
AD
AF
AH
AA
AC
AE
AG
RXD-M55-H/M55-N/M55-S/M55E-H/M55E-N/M55E-S
Y39-4252-70
R709
R770
2.2K
X701
8.388MHz
X702
32.768kMz
R774 47K
47K
47K
K1
R789 5.1K
R788 5.1K
R1
12
2W
C31
0.01
R122
47
R121
47
C55
47P
R48
10
R49
4.7
R47
2.4K
R755
100K
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
FLASH UC 1
FLASH UC 2
EVOL
CE
EVOL
CLK
EVOL
DA
T
A
POWER RL
Y
NC
NC
FLASH WRITE
NC
PLL
CLK
PLL
DO/ST
PLL
DA
T
PLL
CE
SD
TU MUTE
PLA
Y
SW
REC R SW
REC F SW
HALF SW
BEAT C
R/P
BIAS
A/B 1
A/B 2
MUTE
CPM
SOL
RDS DATA
PROTECT
A.MUTE
SP RLY
EEP SDA
EEP SCL
ENC A
ENC B
LED STBY RED
LED PWR GRN
NCS
MMOD
XO
XI
VSS
OSC1
OSC2
VDD
VREF+
CD PROTECTION
TH
A
LEVEL
KEY
2
KEY
1
S LEVEL
TN TYPE
PH
VREF-
S1
GND
S1
HELP
S2
S2
S3
S3
FLAC
FLAC
P RELAY
uCOM 5V
D.GND
F OFF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
STBY LED
TIMER LED
F2
F1
SDO
SDI
SCK
NCS
KEY1
VCC+5V
KEY2
GND
REM CON
VPP
REM+5V
ENC A
ENC B
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
PH
PLAY SW
REC R SW
REC F SW
HALF SW
BEAT C
R/P
BIAS
NC
A/B
MUTE
CPM
SOL
M+9V
R REC
M+9V
L REC
M GND
R PLAY OUT
M GND
L PLAY OUT
A GND
TA+9V
24
R131
22
R129
1W
820
R51
1K
R14
47
R124
2W
0.22
R1
14
0.1
C6
2W
4.7
R12
33K
R16
22P
C16
1.2K
R18
4700P
C18
4700P
C17
0.1
C8
470P
C12
0.1
C7
22u50
C9
470P
C1
1
2W
0.22
R1
13
22u50
C103
2W
0.22
R
111
4.7K
4.7K
4.7K
R754 3.3K
R752 100
R793 3.3k
R761 100
R765
R766
100
R767
R759 3.3K
4.7K
R727
R768 100
R722 3.3K
R721 3.3K
R720 3.3K
R724 10K
R723 4.7K
R762 1K
R719 100
R718 100
100
R735
R715
R714
R713 100
R729 100
R730 100
100P
C716
100P
C715
100K
R742
0.01
C712
5.1K
R712
100
R711
1K
R706
100
R773
100
R790
R710 10K
R775 47K
C709 0.01
100K
R708
18P
C705
18P
C706
10K
R792
47
R123
1.2K
R17
0.1
C5
33K
R15
22P
C15
470P
C24
470P
C23
2W
390
R34
2W
4.7
R1
1
1K
R13
4.7u50
C22
10K
R27
12K
R26
1K
R21
1K
R22
2.4K
R20
0.01
C20
2.4K
R19
47K
R29
47K
R31
10K
R30
0.01
C19
47K
R32
150 2W
R133
4.7K
R35
18
R134
1K
R41
47K
+
C1
13
47u50
+
C1
14
100u50
0.22
C104
22u50
+
C10
22u50
+
C21
100u10
+
C27
2200u45
+
C26
2200u45
R53
R52
IN
GND
OUT
+
C30
47u25
+
C32
47u10
+
C50
47u10
+
C34
47u63
+
C35
22u50
+
C36
22u50
2
1
7
3
4
5
6
13
12
10
8
9
11
14
+
C25
4
3
10K
R28
10K
R23
2W
R33 390
4
3
2
1
L(-)
L(+)
R(-)
R(+)
61
62
64
63
67
68
66
71
69
73
74
75
76
79
80
78
77
56
52
53
54
55
60
59
58
45
44
46
R726
R725
R728
R764
100
100
R791
100
R781 100K
C710 0.01
C71
1 0.01
R782 100K
5
6
57
4
70
100
100
100
R738
+
73
41
71
41
3
4
79
78
31
76
77
6
5
20
80
19
18
67
68
69
66
64
62
63
60
61
59
58
21
13
1000P
C708
+
C707
100u10
0-11
0-21
2-70
No.
KOREA
EUROPE
U.K.
H1
E1
T2
DESTINATION
COUNTRY
U.S.A.
GENERAL MARKET
ABB.
M1
K1
2200u25
NO
2200u25
3300u25 YES
NO
C25
C720
UNIT
NO
NO
YES
E70-0123-05
J1
E70-0155-05
R709
18K
6.8K
220K
NO
R739
10K
NO
AUSTRALIA
DESTINATION
42-70
SHANGHAI
V
40-11
40-71
No.
UNIT
EUROPE
U.S.A.
COUNTRY
E
X1
K
ABB.
C720
C25
2200u25
NO
NO
J1
E70-0155-05
E70-0123-05
220K
R739
R709
NO
2.7K
18K
92-10
YES
E70-0053-05 6.8K
100
DESTINATION
GENERAL MARKET
NO
R739
NO
10K
220K
NO
NO
2200u25
T3
U.K.
2-70
KOREA
H2
UNIT
No.
0-21
0-71
ABB.
COUNTRY
AUSTRALIA
EUROPE
X2
M2
E2
C720
2200u25
3300u25
NO
YES
C25
E70-0123-05
11
NO
YES
D10,
6.8K
2.7K
J1
R709
DESTINATION
EUROPE
COUNTRY
2-70
ABB.
E5
No.
UNIT
C25
C720
D10,
11
J1
R709
2200u25
NO
E70-0123-05
NO
220K
R132
24
R130
22
Q5
+9V
+5V
29V
29V
+9V
+9V
+9V
29V
29V
29V
Q114
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+B
+5V
B
+9V
+9V
+9V
+9V
+9V
+9V
K1
NO
YES
NO
D10,
NO
11
D10,
11
YES
YES
NO
NO
NO
NO
YES
YES
NO
NO
NO YES
B
+B
NO
R739
YES
COUNTRY
EUROPE
DESTINATION
No.
ABB.
2-70
E4
NO
UNIT
E70-0123-05
11
NO
2200u25
NO
C720
C25
D10,
220K
NO
R709
J1
R739
YES
DESTINATION
EUROPE
COUNTRY
UNIT
2-70
No.
E3
ABB.
NO
E70-0123-05
C720
NO
C25
2200u25
D10,
NO
11
R709
220K
J1
R739
NO
+5V
+B
+5V
+B
+5V
+B
+B
B
+B
B
B
B
+B
B
+
+B
+5V
+B
+5V
+B
+5V
B
+B
+5V
B
+B
+
+
+B
Q702
Q14
D13
D7
D1
D14
D16
D15
D2
D12
D50
Q114
Q113
Q110
Q112
Q111
D5
Q106
Q13
D104
D105
Q107
D106
Q10
Q5
J1
(BOTTOM VIEW)
CN71
CN72
J2
D3
CN2
D4
RELAY
DRIVER
THERMAL
FEED BACK
OVER
PROT.
CURRENT
PROTECTION
DC VOLTAGE
PROT.
BIAS CURRENT
ADJ. POINT
CN11
TUNER
MUTE
D11
D10
RXD-M55-H (X29-284X-XX)
RXD-M55-S (X29-28XX-XX)
RXD-M55-N (X29-284X-XX)
RXD-M55E-N (X29-2842-70)
AN8399SA-E1
:
IC21
:
IC22
MN6627482WB
AN4801SB-E1
IC23
:
IC24
: NJM4565M
KIA7805API
IC25,101
:
IC501,702
IC601
IC26
S-80840CNY
:
: LC75343M
: TA8409S
IC701
IC901
IC801
MN101C51FGB
:
BR24C02F-W
:
: BU1923F
Q101,102
Q51
Q13
Q103,104,106
Q105
Q107
Q109,110
Q14
Q52
Q5,12
Q1,2
: KTA1268
IMT4
IMX8
2SD2227S
UMX2N
:
:
:
:
2SC1845(F,E)
UMT2N
UMH5N
DTC113ZSA
:
:
:
:
KTA1267(YGR)
2SC2878(B)
:
:
2SD2641
2SA1577(Q,R)
2SB1685
UN5219
DTA124EUA
2SC4081(R,S)
:
Q203
Q702
Q701
:
:
Q113,114
Q111,112
Q201
:
:
:
D14
D5
D3
D15
D50
D702
D4
D12,13
D2
D1,7,10,11,16,101-106,
: MTZJ5.1(B)
MTZJ16(B)
MTZJ13(B)
1SS402
MTZJ5.6(B)
:
:
:
:
D2SBA20F03
1T2
MTZJ4.3(B)
TS4B03G-81
:
:
:
:
1SS133 or
:
3/3
CN501
X14-
X28-
1/3
CN1
+9V
AVR
AVR
+5V
AVR
-29V
3/3
WH401
X14-
SP. RELAY
u-COM
A
5
5
B
A
B
B
A
A
B
B LINE
B LINE
GND LINE
SIGNAL LINE
DIGITAL LINE
HSS104A
KTC3199(Y,GR)
Q10
:
201,501,701,704-707
RXD-M55E-H (X29-2842-70)
B
A
RXD-M55E-S (X29-2842-70)
A
B
PHONES
L-
L+
R-
R+
LINE
RECORDING
IC701
IC101
(X29-28XX-XX)
RXD-M55 (2/3)
33.0V
1.1V
-1.1V
-1.1V
1.1V
33.0V
-33.0V
5.1V
5.0V
32.6V
32.7V
0V
32.7V
9.3V
33.0V
19.9V
-33.0V
4.9V
5.1V
-28.4V
9.3V
9.3V
33.0V
-33.0V
9.3V
4.9V
8.9V
5.6V
4.3V
-28.4V
-29.2V
-42.5V
CD : 17.7V
: 18.1V
DECK/TUNER
5.0V
5.4V
4.9V
MUTE OFF : 4.9V
TUNER MUTE ON : 0V
4.0V
CAUTION:
For continued safety, replace safety critical com-
ponents only with manufacturer's recommended parts (refer
to parts list).
indicates safety critical components. For
continued 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 insulated from the
supply circuit) before the appliance is returned to the cus-
tomer.
The DC voltage is an actual reading measured with a high
impedance type voltmeter with no signal input. The mea-
surement value may vary depending on the measuring
instruments used or on the product.
A N - 4
D - 1
A J - 5
