G
I
F
H
K
J
M
L
O
N
A
C
E
B
D
2
1
3
5
7
4
6
B LINE
1.3V
0.8V
3.5V
0V
8.0V
3.5V
0.8V
1.3V
0V
4.4V
0V
5V
0V
5V
0V
5V
0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
0V
3.5V
0V
8.0V
4.0V
0V
5V
5.0V
0V
5V
0V
5.0V
0V or 5.0V
0V
5V
0V
5V
0V
0V
5V
5V
0V
0V or 5.0V
0V
5V
5V
0.9V
0V or 5.0V
5V
0V
5V
0V
0V
5.0V
0V
5.0V
1V
0V
5.0V
0V
4V
0V
5V
1.6V
14.4V
4.8V
0V
7.3V
0V
7.2V
7.2V
3.3V
14.4V
0V
7.3V
7.3V
7.3V
7.3V
7.2V
0V
7.2V
7.3V
7.3V
7.3V
7.3V
0V
7.3V
0V
0V
2.5V
5.0V
0.3V
3V
0V
5.0V
5.0V
2.4V
2.4V
5.0V
0V
0V
5.0V
AM+B
13
4
3
12
8
7
11
2
1
6
10
5
9
19
23
20
21
22
AUDIO OUT
SD
S-METER
IF1+B
14
17
18
VDD 5V
IF2+B
15
16
SDA
SCL
DIG GND
10
11
12
13
OSC GND
VT
PLL+B
IFC OUT
7
8
9
OSC GND
OSC GND
OSC GND
FM ANT
3
4
5
6
AM ANT
RF GND
FM+B
1
2
RF GND
10u16
C450
+
270
R450
10u16
C451
R451
R454 100
R452
30K
Lch
R453
30K
R455 100
+
270
Rch
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
P-CON
ACC
B.U
GND
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
+
100K
100K
R413 100K
L1
3300u16
C50
+
0.01
3.3K 1/2W
30K
R52
10K
R54
∗
R370 4.7K
R350 4.7K
R351 1K
R352
3.3u25
C350
+
22K
C351
0.1u50
C352
+
1K
0.068
100u10
C159
+
+
C160
10u16
R152 1K
R151 4.7K
R153 91K
180K
C162 1u50
+
R157 100
R158 33K
0.01
R155 430
R156
23
24
25
26
0.01
C151
47u10
C150
+
L3 4.7uH
100P
C158
R150 4.7K
0.1
C155
C153 0.015
C154 0.22
0.033
150P
C157
C156
7
5
6
0.22
0.22
23
IF1 GND
IF2 GND
0.01
C202
0.01
C204
22K
R203
22K
R201
1K
R202
1K
R200
R205
150
35
36
4.7uH
76
32
C209 47u10
+
1
2
3
4
5
FWD/REV
GND
HEAD R
HEAD COM
HEAD L
0.047
C251
10K
R251
1500P
C2
1500P
C1
22K
R1
22K
R2
12
11
10
9
8
7
6
5
4
3
2
1
P
AN 5W
L
D
ATA
S
L
CLK
L C
E
L
D
ATA
L
u GND
P
AN5V
RESET
ILL
GND
ILL
+B
ESD GND
R322 2.2K
R301 470
R302 470
R303 1K
R304 1K
27K
47K
R320
R321
100u16
C57
+
R62
100u10
C58
+
1K
R64
1K
R63
R65
2.2 1/2W
R66
2.2 1/2W
R207 2.7K
R206 4.7K
3
4
48
49
43
13
12
2
11
60
55
C56
100u6.3
5.6K
R61
+
47K
R60
10u10
R58
22K
100
R59
C55
+
C54
0.01
100u16
+
1K
R67
50
GND
7
R162 47K
6
5
4
3
C164 0.01
2
1
9
8
11
10
12
13
VDD
14
+
0.022
4
C7
120K
R7
100u10
100
+
100P
C5
C9
R5 6.8K
R3
L I
N
8
L N
F
L
OUT
7
6
C3
47u6.3
3
10
R250
120K
R8
C250
100u10
R6 6.8K
+
C8
0.022
C10
100u10
R4 100
GND
VCC
R OUT
5
4
100P
C6
R NF
3
2
+
+
C4
47u6.3
R IN
1
40
39
18
C53
37
38
2-72
2-71
NO
YES
NO
YES
MODEL NAME
KRC-281RG (M)
UNIT NO.
0-20
YES
NO
R103
D350
KRC-179RA/G (E)
KRC-179RYA/YG (E)
KRC-15RG (E)
KRC-279RA/G (E)
YES
NO
YES
F1 (10A)
R159 100K
28
27
26
25
24
23
22
21
20
18
17
16
15
AC OUT
L
AC OUT
R
OUT
LF
OUT
RF
OUT
LR
OUT
RR
VDD
GND
SDA
S MUTE
QUAL
MUX R
MUX L
1
2
3
4
5
6
7
8
9
10
11
12
13
14
VREF
CREF
T
APE L
T
APE R
CDR
CDGND
CDL
PH-
PH+
AM
MPX
LEVEL
1
MP
IN
MP
OUT
1
C14
C13
L4
52mH
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
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
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
P
.ON
B.U.DET
ACC DET
P
. CONT
BEEP
AMP
STBY
SVR
REQ H
CH CON
AMP
MUTE
MUTE
AFC
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
IC2 SEL
0
L
D
ATA
L
L
D
ATA
S
D
ATA
C
SEL 1
R CLK
PACK IN
VDD 1
X2
X1
IC
XT1
VDD O
S METER
R306 1K
2
2
C452
YES
NO
2-71
NO
YES
NO
2-71
NO
IC1
UPD780058GC172
1
A GND
REQ C
DATA C
8
B.U.
3
CON
MUTE
4
5
9
10
GND
REQ H
1
2
9
6
7
CLK
Rch
13
10
6
RST
11
12
7
5
DATA H
Lch
13
11
12
8
4
3
1
2
TH1
P1
10
R323
1/2W
T.MUTE
GND
MOT GND
MOT+B
GND
PACK IN
Lch
1
2
FWD
REV
Rch
Ref.99
6
3
4
5
1/2W
Q151
Q153
Q320
10K
Q54,55
Q150
16
D
ATA
H
17
CH CLK
18
19
20
IC2 SEL
1
A
VREF 1
L
CLK
16
17
18
11
12
13
28
27
4.7K
R117
R119 2.2K
R120 1K
R121 10K
1K
1K
R123 10K
R122
R124
IC2 CLK
IC2 DATA
FM+B
AM+B
4.7K
R125
36
35
39
37
38
40
41
32
41
REQ C
KEY-REQ
SEL O
VSS O
AVREF O
PHONE
NOISE
AV CONT
R107
R106
2.2K
10K
62
47K
R105
6.8K
X1
C102
15P
15P
C103
3
2
1
57
58
59
60
10
R100
0.022
C104
RESET
FWD/REV
ILLUMI
55
R55
47K
47K
R57
C52
54
54
R353
Q351
53
48
50
49
43
45
46
T
-MUTE
R380
10K
0.01
C380
22K
R381
∗
R104 47K
∗
R103 47K
R140 47K
2.2K
47K
R142
R1
10 100K
R1
13
2.2K
R102
L
RES
R305 1K
3
57
57
R49
100K
100K
R48
53
21
3
1
11
5
7
9
13
15
17
19
23
25
TA
B
RR+
RR-
FR-
FR+
FRI
GND
RLI
RL+
RL-
FL-
FL+
CD
GND
2
4
STBY
6
VCC
8
GND
10
SVR
12
RRI
14
FLI
16
AC GND
18
GND
20
VCC
22
MUTE
24
GND
4.7K
R14
0.22u50
C16
750
4.7K
0.22u50
C18
R16
4.7K
0.22u50
C15
R13
1u50
+
0.22u50
4.7K
R15
C17
17
19
23
21
24
25
23
26
R154
C161
19
SCL
1u50
C152
+
41
0.1
C506
78
1K
R160
L6
4.7uH
4.7uH
L7
L10
0.01
C214
1
2
3
4
5
6
7
8
QUAL
RDDA
VREF
MPX
OSEL
GND
ARI
FILOUT
16
15
14
13
12
11
10
9
RDCK
T57
OSCO
OSCI
VCC
EXTRES
TM
TSEL
R501 2.2K
R502 2.2K
R500 2.2K
C500 10u6.3
+
4.7K
R504
330P
C501
L12
4.7uH
X2
4.3320MHz
C504 10P
C505 10P
10u6.3
C503
+
0.01
C502
R503
1K
58
60
63
5
6
YES
2-72
2-72
KRC-25RA/G (E)
KRC-279RYA/YG (E)
YES
YES
NO
YES
NO
D370,
371
NO
NO
YES
NO
NO
YES
YES
NO
YES
YES
YES
YES
YES
YES
R370
YES
YES
NO
YES
YES
NO
NO
R104
UPD780058GCxxx
UPD780058GC211
UPD780058GC211
UPD780058GC211
UPD780058GC211
UPD780058GC211
UPD780058GC211
RL-
BU
YEL
9
TEL MUTE
BRN
12
11
10
VIOL/BLK
GRN/BLK
RR+
RR-
RL-
VIOL
15
13
14
RL+
GRN
16
1
3
5
7
RR+
RL+
FL+
FL-
FR-
RR-
FR+
2
2
6
8
5
7
4
1
3
6
8
GND
4
ACC
P-CON
B
A
BLK
1
ANT. CON
P. CON
BLU/WHT
BLU/WHT
RED
4
2
3
GRY/BLK
WHT/BLK
GRY
7
6
5
FR-
FR+
FL-
WHT
8
FL+
FRONT
R
GND
ACC
BLK
RED
10
9
1
2
GR
Y
BLU/WHT
13
11
12
4
3
5
P
. CON/ANT
. CON
WHT
WHT/BLK
GR
Y/BLK
16
14
15
6
7
8
FRONT
L
R261
R262 47K
GND
1
P
ACK IN
2
1/2W
R260 1K
10K
R263 47K
5
MOT
3
MOT
4
6
2
8
27
+B
GND
IC4
Q58,59
Q60,61
Q350,353
Q352
Q51,52
Q450,451
Q503
502
Q501,
Q500
Q56,57
76
78
3
5
7
9
5
6
62
47K
R252
R405
R404
R382 47K
R51
47K
R133
10K
R161
C163 0.01
4.19MHz
47K
R108
100K
R
111
R1
12
W200
L8
4.7uH
1
2
3
4
5
C101
0.01
58
J4
A1
REAR PRE OUT
Q450
J5
Q451
J2
D400
D401
D408
D405
D410
D409
D404
D50
D261
D52
D51
Q50
D351
∗
D370
ANT-CON.
Q350
∗
D350
Q351
D352
Q353
Q352
Q151
D150
D152
D151
Q150
Q201
D200
Q203
ANT
J1
CN1
J3
Q320
Q55
Q54
D55
Q56
Q57
SW
Q301
Q53
Q52
Q51
D53
D54
Q58
Q60
Q61
Q59
D56
Q153
GND LINE
SIGNAL LINE
A
(X14-656x-xxx)
A
8V
IC1
:
IC2
: TDA7400D
IC3
: HD74HC27FP
IC4
: TDA7384A
IC5
: LA3161
Q49,50,52,57,61,500,503
: 2SC2412K or
2SD601A
Q51,261
: 2SB1443
Q53
: 2SA1036K
Q54,58
: DTC144EK or
UN2213
Q55,59,153,352,502
: DTA124EK or
UN2112
Q56,60
: 2SB1655(E,F) or
2SB1565(E,F)
Q201,203,350 : 2SB1277(Q,R)
Q301
: DTA144EK or
UN2113
Q320,351
: 2SA1037K
Q450,451
: DTC143TK or
UN2216
D50
: S2V20 A
D51,405,410 : MA4068(N)-M
D52,200
: MA4051(N)-M
D53,260,261,350,351,370,371
:
AM01Z or
ERA15-01
D54
: MA4056(N)-M
D55
: MA4091(N)-L
D56
: MA4110-L
D100,150-152,352
: 1SS133
TOP VIEW
J4
J1
X13-
2/2
∗
D371
Q150
UN2212
DTC124EK or
:
Q151,260,353
UN2214
DTC114YK or
:
MA4062-L
D400,401,404,408,409
:
HD1
S3
M
M1
S1
S2
ILLUMI
+B SW
ILLUMI
+B DRIVER
DRIVER SW
P-CON. PROTECTION SW
P.ON
5V SW
SYSTEM u-COM
DISCHARGE SW
PRE OUT
MUTE SW
PANEL 5V
SW
8V
DRIVER
EQUALIZER
AMPLIFIER
E-VOLUME
MUTE SW
PRE OUT
FM+B
SW
AM+B
SW
FRONT END
E-VOLUME
MUTE SW
Q49
P-CON.
P-CON.
SVR FORCED
DETECTION
ACC
D382
D100
Q501
Q502
Q503
Q500
PST9130NR
TDA7479D
IC6
IC7
:
:
DTC114TK or
Q501
:
UN2215
MOTOR
+B SW
Q260
MOTOR+B
DRIVER
D260
WH1
Q261
MUTE LOGIC
POWER
ANPLIFIER
RESET
RDS DECODER
RESET
CD-CH
SW
P-CON. PROTECTION
INHIBIT SW
BACK-UP
5V DRIVER
SW
DETECTION
BACK-UP
SW
NOISE
BUFFER
AFC TIME
CONSTANT SW
OUTPUT
AUDIO
BUFFER
DSM1SD2 or
D380
MA4047-M
:
4.7K
4.7K
47K
47K
22K
22K
22K
47K
10K
47K
47K
47K
10K
22K
22K
22K
22K
47K
22K
47K
22K
22K
10K
47K
22K
22K
10K
IC3
IC5
KRC-15R,179R,25R,279R,281R (E,M) (1/2)
SYNTHESIZER UNIT (X14-656x-xx)
IC4
IC2
∗
IC1
A
ME1 (D40-1136-05)
IC6
IC7
KRC-281R
(E30-4785-05)
DC1
(E30-4790-05)
KRC-15R,179R,
DC1
25R,279R
∗
∗
KRC-15R,179R,25R,279R,281R
2SB1565
DTA114EK
DTA124EK
DTA144EK
DTC114TK
DTC114YK
DTC124EK
DTC143TK
DTC144EK
2SA1036K
2SC2412K
2SB1548
2SB1277
2SB1443
2SA1037K
LA3161
PST9130NR
TDA7479D
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.
Manufactured under license from Dolby Laboratories.
"Dolby" and the double-D symbol are trademarks
of Dolby Laboratories.
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
