A
B
D
F
H
J
C
E
G
I
2
1
3
5
7
4
6
0V
5V
0V
5V
0V
5.0V
0V
or5.0V
0V
or5.0V
0V
5V
0V
0V
5V
0Vor5.0V
0V
5V
0Vor5.0V
0V
5V
0Vor5.0V
0V
5.0V
0V
5.0V
0V
4V
0.6V
4V
1.6V
0V
1V
5.0V
0V
5.0V
0V
7.3V
7.3V
7.3V
7.3V
0V
0V
4.8V
14.4V
0V
7.3V
7.2V
7.2V
7.3V
0V
14.4V
3.3V
0V
7.2V
7.3V
7.3V
7.3V
7.3V
0V
4.4V
0V
2.5V
0V
5V
0V
0V
5V
5.0V
0.9V
5V
B LINE
CAUTION: For continued safety, replace safety
critical components 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 customer.
10
MUTE
5
REQ H
2
1
4
3
7
6
GND
9
CON
B.U.
8
DATA C
12
11
13
RST
REQ C
Rch
A GND
Lch
DATA H
CLK
1
2
13
4
3
12
8
7
11
2
1
6
10
5
9
16
15
14
13
12
11
10 9
8
7
6
5
4
3
2
1
FL+
RL+
FL-
RL-
FR-
RR-
FR+
RR+
P-ANT
TEL
MUTE
P-CON
ACC
B.U.
GND
2
4
6
8
10
12
14
16
18
20
22
24
GND
STBY
VCC
GND
SVR
RR1
FL1
AC GND
GND
VCC
MUTE
GND
1
3
5
7
9
11
13
15
17
19
21
23
25
TA
B
RR-
RR+
FR-
FR+
FR1
GND
RL1
RL+
RL-
FL+
FL-
CD
19
23
17
21
9
3
7
5
R412 100
R410 4.7K
R409 4.7K
R402 10
R411 100
R406 4.7K
R407 4.7K
R408 1K
R403 100
7
6
5
46
45
1
17
63
16
10
0.47u50
C401
+
R401
C402 0.47u50
+
R400 4.7
C400 22u6.3
+
R405 100K
R404 100K
R413
100K
17
23
21
19
L1
3300u16
C50
+
6
5
4
3
2
1
T.MUTE
GND
MOT GND
MOT +B
PACK IN
GND
10K
R261
1K
R260
R263
47K
R262 47K
47K
R57
0.01
C52
47K
R55
R51 3.3K 1/2W
30K
R52
10K
R54
R380
0.01
C380
22K
R381
10K
4.7K
R370
R350 4.7K
R351
1K
R352
3.3u25
C350
+
22K
C351
0.1u50
C352
+
R353 1K 1/2W
0.068
C104 0.022
4.7K
R16
0.22u50
C18
0.22u50
C15
4.7K
R13
0.22u50
C17
4.7K
R15
0.22u50
C16
R14 4.7K
100u10
C159
+
+
C160
1u50
R152 1K
R151 4.7K
R153 91K
430
1u50
+
180K
1u50
C162
+
R157 100
R158 33K
750
C161
R154
R155
R156
12
11
10
9
8
7
6
5
4
3
2
1
P
AN SW
L
D
ATA
S
L
CLK
L C
E
L
D
ATA
L
L
RES
u GND
P
AN5V
RESET
ILL
G
ILL+B
ESD GND
R322 2.2K
R301 470
R302 470
R303 1K
R304 1K
R305 1K
R306 1K
27K
47K
R320
R321
R323 10
24
26
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
RESET
FWD/REV
ILL
P.
O
N
B.U. DET
ACC DET
P
.CONT
BEEP
AMP
STBY
SVR
REQ H
CH CON
AMP
MUTE
MUTE
AFC
IC2 CLK
IC2 DATA
FM+B
AM+B
PLL DATA
PLL CLK
VSS 1
SD
FF/REW
MOTOR
P
ANEL
L C
E
L
RES
A
VSS
R DA
T
A
R QUAL
A
VREF 1
IC2 SEL
1
IC2 SEL
0
L
D
ATA
L
L
D
ATA
S
L
CLK
D
ATA
C
D
ATA
H
CH CLK
SEL 1
R CLK
REQ C
PACK IN
KEY-REQ
SEL 0
VSS 0
VDD 1
X2
X1
IC
XT2
XT1
VDD0
AVREF 0
S METER
PHONE
NOISE
AV CONT
R1
13
48
43
46
45
48
49
50
41
42
49
43
47K
R104
R103 47K
X1
4.19MHz
R105 6.8K
15P
C103
C102
15P
R107
R106
10K
2.2K
58
1K
R124
1K
R123
R120 1K
R121 10K
40
39
R119 2.2K
R117 4.7K
47K
47K
R1
10
100K
2.2K
R
111
2.2K
100K
18
17
3
2
1
6
5
11
12
13
16
27
28
32
35
37
38
13
1
12
2
11
3
60
5
36
60
28
27
77
55
53
54
56
C56
100u6.3
5.6K
R61
+
47K
R60
10u10
R58
22K
100
R59
C55
+
C54
0.01
100u16
+
53
55
R48
100K
100K
R49
R125
R108
47K
77
76
78
1K
R67
5
3
7
5
9
50
GND
0.01
C163
10K
R162
7
47K
6
100K
5
4
3
C164
2
1
9
8
11
10
12
R133
13
VDD
14
47K
1
1/2W
62
63
25
23
R1
12
18
R159
R161
C53
2-72
2-71
YES
YES
NO
YES
NO
YES
MODEL NAME
KRC-280RG (M)
UNIT NO.
0-20
NO
YES
NO
R370
D350
KRC-178RG/A (E)
KRC-178RYG/YA (E)
KRC-13RG (E)
KRC-278RG/A (E)
KRC-278RYG/YA (E)
KRC-23RG/A (E)
YES
NO
YES
D370,
NO
YES
NO
R103
NO
YES
R104
YES
371
F1 (10A)
(F52-0006-05)
FRONT L
FRONT R
P. CONT/ANT.CON
ACC
GND
6 14
8 16
7 15
REAR L
3 11
5 13
4 12
REAR R
2 10
1
9
TEL MUTE
B.U.
15
16
7
8
RR-
ACC
B
A
ANT.CON
14
13
6
5
12
4
ANT.CON
P.CON/
B.U.
MUTE
TEL.
11
3
9
1
10
2
TEL MUTE
FR+
RR+
FR-
FL+
FL-
7
8
7
6
4
2
3
1
5
3
1
5
RL+
RL-
8
GND
P
.CON
ACC
4
2
6
B.U.
3
5
4
7
8
6
12
10
11
9
13
1/2W
47K
R382
0.01
C101
TH1
P1
YES
NO
NO
YES
YES
YES
YES
NO
NO
YES
YES
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
2-71
2-71
2-72
2-72
42
1
2
3
4
5
56
R142
R140
R102
R122
10K
Q58,59
Q350
Q352
Q351
54
Q51.52
47K
4.7K
Q151
0.01
Q153
IC4
IC3
Q320
TOP VIEW
J4
J4
J2
D400
D401
D403
D402
D408
D405
D410
D409
D404
D50
WH1
D261
D260
Q260
Q49
D52
D51
Q50
ACC
SW
D380
SW
D351
D370
ANT-CON.
D371
Q350
D350
P-CON.
Q351
D352
Q353
Q352
Q151
D150
D152
D151
J3
Q320
D100
Q301
5V SW
Q53
B.U. 5V DRIVER
Q52
Q51
D53
D54
DET.
P-CON.
Q58
Q60
Q61
Q59
D56
ILLUMI.
Q153
IC1
: UPD780058GC134
IC2
: TDA7400D
IC3
: HD74HC27FP
IC4
: TDA7384A
IC5
: LA3161
IC6
: PST9130NR
IC7
: TDA7479D
Q49,50,52,57,61,500,503
: 2SC2412K or
Q51,261
: 2SB1443
Q53
: 2SA1036K
Q54,58
: DTC144EK or
Q55,59,153,352,502
: DTC124EK or
Q56,60
: 2SB1655(E,F)
Q150
: DTA124EK or
Q151,260,353
: DTC114YK or
Q201,203,350
: 2SB1277(Q,R)
Q301
: DTA144EK or
Q320,351
: 2SA1037K
Q450,451
: DTC143TK or
Q501
: DTC114TK or
D50
: S2V20 A
D51,405,410
: MA4068(N)-M
D52,200
: MA4051(N)-M
D53,260,261,350,351,370,371
: AM01Z or
D54
: MA4056(N)-M
D55
: MA4091(N)-L
D56
: MA4110-L
D100,150-152,352
: 1SS133
D380
: MA4047-M
D400-404,408,409
: MA4062-L
GND LINE
SIGNAL LINE
A
(X14-613x-xxx)
A
Q261
ERA15-01
2SD601A
UN2213
UN2112
UN2212
UN2214
UN2113
UN2216
UN2215
2SB1565(E,F)
+B SW
ILLUMI.
+B DRIVER
MOTOR
+B SW
MOTOR
+B DRIVER
P-CON DRIVER
SW
B.U. DET.
SW
P-CON.
PROTECTION
PROTECTION
P-CON.
INHIBITION
SW
P.ON.
CHANGER
RESET SW
RESET
SVR
FORCED
DISCHARGE SW
MUTE
SW
PRE OUT
SYSTEM u-COM
POWER IC
MUTE
5V SW
PANEL
47K
47K
22K
22K
10K
47K
22K
22K
47K
10K
47K
47K
47K
10K
22K
22K
IC4
IC6
IC1
IC3
SYNTHESIZER UNIT (X14-613x-xx)
DC1 (E30-4785-05)
KRC-280R (M)
DC1 (E30-4790-05)
KRC-13R,178R,23R,278R (E)
2SB1565
DTA114EK
DTA124EK
DTA144EK
DTC114TK
DTC114YK
DTC124EK
DTC143TK
DTC144EK
2SA1036K
2SC2412K
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299