V
X
U
W
Z
Y
AB
AA
AD
AC
P
R
T
Q
S
5.0V
0V
0Vor5.0V
5V
0V
0V
0V
4.9V
0V
0.6V
0.6V
5.0V
13.0V
13.0V
0.6V
CAS:3.9V
SRW:6.8V
5V
0V
0V
5V
5.0V
0V
0V
5V
0V
5V
0V
5V
5.0V
0V or 5.0V
3.8V
1.6V
0.5V
0V-5.0V
0V-4.4V
5V
0V
0V
0V
5V
0V-5.0V
5.0V
5V
0V
5V
0V
5V
0V
5V
0V
5V
0V
5V
0V
0V
5V
5V
0V
0V
5V
0V
5V
5V
0V
5V
0V
5V
0V
0V
5V
5V
0V
0V
0V or 5.0V
5V
0V
0V or 5.0V
0V
0V
5.0V
0V or 5.0V
0V
5V
0V
5V
0V
5V
0V
0V or 5.0V
5V
0V
5V
0V
5V
0V
0V
5V
0V
5V
0V
5V
5V
0V
5V
0V
5V
0V
0V
5V
0V
5V
0V
5V
0V
0V
5V
0V
0V
5V
4.9V
2.4V
5V
4.9V
2.4V
0V
0V
7.9V
3.9V
3.9V
3.9V
3.9V
3.9V
0V
3.9V
B LINE
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.
CN1
D74
D72
D73
D77
D75
D76
D79
D78
D82
CN3
PAN 5V
Q45
ROM
E2P
RST IC
PH1
u-COM SYSTEM CONTROL
CN2
Q82
FORCED/
WIDE SW
Q89
AM+B
Q86
Q88
FM+B
Q87
WH1
IC1
:
IC2
: TDA7400
IC3
: M5237ML
IC4
: TDA7386
IC5
: TDA7401
IC6
:
IC7-9,12
: NJM4565M-TE2
IC10
: TC74HC02AF
IC11
: TDA7479D
IC13
: B6238A
IC14
: BR24C01AF or
IC15
: S-80830ANNP
Q1-6,21,24,25,37,55,57,60,61
: 2SC2412K (2SD601A)
Q18,32,35
: KRC104S (DTC144EK)
Q19,30,36,71 : KRA103S (DTA124EK)
Q20,22
: 2SB1565F(E,F)
Q23,29,45,58,59,62
: 2SA1037K
:
:
2SD1760
DTA123JK
:
:
Q26,28
:
2SB1277(Q,R)
Q31
:
DTC114EK (UN2211)
Q40
:
KRC107S (DTC114YK)
Q41
: DTC114YUA (UN5214)
Q44,92
: DTA124EUA (UN5112)
D1
: RD6.8MW
D3,22,72
: MA3062-M
D5
: DAP202K (MA152WA)
D6,7,50,51
: DAP202U (MA142WA)
D11-18,35,38
: MIF60
D21,75
: MA3062WA
D31
: RM10ZLF
D32,39,40,44 : 1SR139-400
D33,36
: MA4056 (N)-M
D37
: MA4062 (N)-M
D41,52,71,82 : DAN202K (MA152WK)
D42
: MA3220-H
D43,56
: MA3056-M
D45
: MA3075-M
D46
: MA3036-H
D53,55
: MA3110-L (HZM11N (B1) )
D61
: IMSA-6801
D73,74,76-79 : KDS226 (DA204K)
(X14-618X-XX)
A
B
C
E
F
G
(X14-618X-XX)
H
I
GND LINE
SIGNAL LINE
CN8
E
D81
G
D46
D45
Q43
M24C01-WMN6T
(UN2213)
(UN2112)
Q27,43,51
(UN2214)
Q33
Q38,42,56
2SB1443
Q39
DTC124EUA (UN5212)
Q93
Q72,82,86,87
Q91
Q88,89
DTC114TK (UN2215)
:
2SC4081 (2SD1819A)
2SB1188(Q,R)
KRC103S (DTC124EK)
:
:
:
(UN2212)
MA3047-M (HZM4.7N (B2) )
D81
:
MECHA MOTOR DRIVER
SUB MOTOR
VOLTAGE SW
D
ANT
M
FPC
CN1
X13-
2/2
(X13-978X-XX)
SEPARATION
I
RDS
DEMODULATOR
Q92
Q93
BUF
NOISE
DET
NOISE DET
CONSTANT SW
OUTPUT
Q91
D71
DET
NOISE
CN9
H
22K
22K
22K
22K
22K
22K
47K
10K
10K
22K
22K
IC15
IC14
IC1
KRC-PS987R/PS988R (1/2)
A1
IC13
KRC-878R/858/888/708 (1/2)
KRC-778R/RY/RV/RYV (1/2)
SRM MECHA
(x13-978X-XX)
A
IC11
IC12
(X14-618X-XX) (B/2)
R295 1K
29
96
R268 1K
1K
L CLK
ILL-G
ILL+B
L CE
L DATAS
L DATAL
RESET
R338
R337
R341
R335
R336
R340
1
2
4
5
3
6
7
470
1K
1K
1K
1K
DIMMER
LOCK SW
REMO
NC
D.GND
VDD
R342
R339
10
8
9
11
12
13
1K
1K
100K
1
4
2
3
1
C256
MS OUT
+B 8V
OUT
-R
PON 5V
ON/OFF
B/C
A
GND
OUT
-L
5
4
3
2
1
19
7
6
42
50
41
40
43
51
R316
10K
47K
R317
36
8
7
1
VCC
2
SCL
5
4
SDA
VSS
3
1
2
R273 2.2K
R275 4.7K
61
44
63
62
18
C254
24P
C253
X1
X2
27P
R280 100K
R265
9
100
CHCON
CH MUTE
REQ H
DIMMER
NC
NC
1
2
3
4
5
6
7
8
MUTE
97
99
98
98
NC
SW 5V
97
SCK IC2
SUB MOT
OR1
A
VDD
XT1
VSS
XT2
VDD
RST
CH RST
R CLK
REQ C
10
12
13
14
X2
X1
11
15
16
17
18
19
20
22
23
R281 1K
21
R322
A
VREF0
PHONE
100K
25
24
470
R321
26
SRM SW1
R292 4.7K
R291
27
NOISE
R293 4.7K
W32
C257
27
28
S METER
R294
F REEL
28
29
95
R267 1K
96
SDA IC2
94
R266 1K
92
92
93
BU DET
TEST
P ON
FM+B
88
90
91
89
89
ACC DET
REMO
P CON
R260 1K
R261 1K
87
88
AM+B
EXT.AMP
31
30
NC
33
32
AVSS
NC
AVREF1
35
AM/IF
34
R297
36
35
L DATAL
1M
L9
DATAH
37
DATAC
39
CH CLK
38
47
38
37
39
40
R301
R302
40
79
83
84
86
84
83
85
CASS/SRM
ANT CONT
PRE MUTE
81
82
80
VDD
77
78
47K
76
47K
ST TYPE1
ST TYPE0
TYPE2
TYPE1
TYPE0
MODE1
MODE3
VSS
46
L CLK
L DATAS
43
41
42
DIMMER
41
43
42
44
BEEP
45
PLL DATA
PLL CE
46
45
WIDE
AFC
NARROW
MSC
F/R
B/C
MUSIC
SRM DET
FM SD
EQ MUTE
R DA
T
QUAL
SRM SW2
P-5V
ILL ON
47
PLL CLK
48
48
47
LOCK SW
50
L CE
49
50
CP4 4.7K
72
75
74
73
71
70
69
68
69
68
CP5 4.7K
CP6 4.7K
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
58
63
64
66
67
61
59
56
57
R318 47K
51
51
53
52
54
SUB+
SRM DET
GND
SW2
SUB-
2
55
1
4
58
3
5
C162
470P
100u10
0.01
35
PON 5V
0.01
24
D GND
46
L5
4.7uH
47
45
PLL DATA
22
PLL CLK
23
20
PLL CE
21
FSD OUT
28
12
10
R174 2.7K
AM DET OUT
+
VR1
100K
4.7uH
L6
18
HI UP ADJ
19
IF GND
B
17
14
15
FM DET OUT
IF MODE OUT/
16
52
53
C155 1
R173 1M
W22
W21
59
0.01
C164
15K
R181
VCO GND
13
FM SD OUT
14
12
54
9
10
REQUEST
11
K2I VTH
IF SELECT
8
9
RDS OUT
1
4.7uH
Q87,89
L4
87
Q86,88
1K
R167
22K
R165
4.7uH
88
R168
22K
R166
1K
4
0.01
C153
N.C.
N.C.
7
5
FM+B
AM+B
6
0.01
C151
L2
3
AM ANT IN
2
RF GND
FM ANT IN
L3
D61
2
1
L1 52mH
NO
ICL7660SIBA
NO
UPD784218GC105
IC1
NO
TC7662BEOA
A1
X86-3222-70
YES
NO
NO
YES
NO
NO
NO
YES
YES
NO
NO
YES
NO
NO
YES
YES
YES
NO
NO
NO
NO
NO
YES
NO
NO
YES
NO
YES
NO
NO
YES
YES
YES
YES
NO
NO
YES
YES
NO
NO
IC6
0-21
0-12
0-11
0-22
2-73
2-72
2-71
2-70
X86-3100-10
UPD784217GC103
NO
NO
MODEL
NAME
UNIT
No.
KRC-PS978R
KRC-878R
KRC-778R/RY
KRC-PS988R
KRC-778RV/RYV
KRC-708
KRC-888
KRC-X858
YES
NO
YES
NO
YES
YES
YES
YES
TGND
FM+B
SMETER
NOISE
AFC
DGND
PON5V
RDSOUT
RDAT
QUAL
RCLK
11
10
9
8
7
6
5
4
3
2
1
NC
DOLBY
MTL
MODE2
P
ACK DET
R REEL
P MUTE
SVR
NC
NC
NC
NC
MOT
OR
NC
SUB MOT
OR2
SUB MOT
OR3
KEY
REQ
R296 1K
R257
R258
R254
47K
R252
47K
47K
R256
R255
47K
R251
47K
R253
R307 4.7K
R305 2.2K
65
62
R332 4.7K
R331 4.7K
R329 4.7K
R330 10K
R313 4.7K
55
R326 47K
R327 1K
R328 1K
R324 4.7K
R325 47K
82
R334 22K
R282 1K
R259 4.7K
87
CP10 4.7K
86
C160
10u10
C161
+
100u10
C152
+
14
C158
C159
10
3
470
R192
100K
R191
14
9
DOLBY
8
64
MS MODE
MUTE
MTL
MODE3
9 10 11 12
F/R
13
68
65
67
66
69
F REEL
MODE1
MODE2
14
16
15
70
29
30
T
APE IN
D GND
17 18
71
27
54
57
56
17
RST
91
CP3 2.2K
30
R304 1K
34
R333
100K
43K
R315
R314
43K
4.7uH
L8
4
R274 1K
16
R271 100K
95
R269 5.6K
R270 5.6K
10
9
8
7
6
5
4
3
2
1
OUT1
VCC2
VREF
VCC1
IN3
IN2
IN1
OUT3
OUT2
GND
CP1 1K
22
21
20
71
70
R279 2.2K
RST
25
43
R264 2.2K
91
54
CP9 100K
93
90
95
96
96
95
180K
R303
W31
1K
R287
22K
R288
47K
R286
C251 0.01
47u6.3
+
R278 1K
GND OUT
NC
IN
22
21
20
470
R194
0.01
C191
R193 100K
10u16
C190
+
R195 4.7K
R196 4.7K
R197 4.7K
R198 47K
R REEL
DOLBY
R289
W11
3
10
C99
C98 0.22
10
2
2.2 1W
R121
R120 1.2K
2.2 1W
R122
47u16
C100
+
X86-3100-10
X86-3100-10
X86-3222-70
X86-3222-70
X86-3222-70
X86-3222-70
1u50
NO
YES
NO
NO
C90-5242
100u10
NO
C90-5243
C90-5243
C90-5242
C90-2822
C90-5242
NO
YES
NO
YES
NO
YES
YES
YES
NO
YES
NO
NO
NO
YES
YES
YES
YES
NO
NO
YES
1u50
NO
1u50
2.2u50
1u50
1u50
47u10
100u10
22u25
47u10
NO
NO
C90-2822
C90-5242
NO
NO
NO
NO
YES
YES
YES
YES
2.2u50
1u50
47u10
100u10
47u10
22u25
UPD784218GC105
UPD784218GC105
UPD784217GC103
UPD784217GC103
UPD784217GC103
UPD784217GC103
TC7662BEOA
D11-
18
D35
D38,
39
10
C7-
C81
C132
C133
C142
4700P
1000P
C257
22K
22K
2.2K
2.2K
22K
22K
2.2K
22K
YES
NO
YES
YES
YES
YES
NO
NO
YES
YES
YES
YES
YES
YES
NO
YES
R104
NO
YES
NO
NO
YES
YES
YES
YES
100u10
100u10
100u10
4700P
4700P
1000P
1000P
1000P
1000P
R23,24,
37,38
47,48
R33,34,
NO
NO
YES
NO
NO
NO
NO
YES
YES
YES
YES
YES
NO
YES
NO
YES
YES
NO
YES
YES
NO
YES
YES
NO
160K
120K
R254
R291
R251
YES
YES
YES
NO
YES
R252
NO
YES
NO
NO
NO
NO
YES
NO
R253
YES
YES
NO
YES
NO
NO
NO
NO
R255
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
R256
NO
NO
NO
YES
YES
YES
YES
YES
NO
NO
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
120K
160K
120K
160K
120K
120K
27K
22K
22K
22K
27K
R294
27K
27K
27K
YES
YES
NO
NO
NO
NO
YES
NO
YES
YES
NO
NO
NO
YES
NO
R329
YES
NO
NO
YES
YES
NO
YES
NO
YES
E63-0853
YES
NO
YES
YES
NO
E63-0853
E63-0853
YES
YES
YES
NO
YES
NO
YES
YES
YES
NO
NO
NO
YES
NO
NO
NO
NO
YES
NO
NO
E63-0854(GOLD)
E63-0854(GOLD)
J2
W33
NO
NO
NO
YES
NO
YES
NO
YES
NO
YES
YES
YES
YES
YES
YES
E63-0854(GOLD)
E63-0853
E63-0853
W21,22,
31,32
W1-
4
W5,
6
8
W7,
VR1
CN8,
9
49
49
Q43
44
KRC-778R/RY
KRC-PS978R
KRC-878R
KRC-PS988R
KRC-778RV/RYV
KRC-X858
KRC-708
KRC-888
MODEL
NAME
KRC-778R/RY
KRC-PS978R
KRC-878R
KRC-PS988R
KRC-778RV/RYV
KRC-X858
KRC-708
KRC-888
MODEL
NAME
KRC-778R/RY
KRC-PS978R
KRC-878R
KRC-PS988R
KRC-778RV/RYV
KRC-X858
KRC-708
KRC-888
MODEL
NAME
C95,
162,164
R113,181,
293,297,307
R259,
333
R279,
327,328
R280,
325,326
7
L DATAL
DIMMER
LOCK SW
NC
3
1
2
VDD
DGND
4
6
5
REMO
L DATAS
11
L CLK
8
10
9
RESET
L CE
12
13
ILLMG
ILL+B
L DATAL
8
NC
4
NC
1
2
3
VDD
DGND
DIMMER
LOCK SW
REMO
7
6
5
L CLK
12
L DATAS
L CE
11
10
9
RESET
S.GND
ILL+B
ILLMG
15
14
13
KRC-X858
KRC-888
KRC-708
KRC-PS988R
KRC-778RV/RYV
KRC-778R/RY
KRC-878R
KRC-PS978R
NAME
MODEL
No.
0-10
0-11
UNIT
VR1
WP
RST
17
9
2
3
1
5.6K
R207
R203
7
8
2.2K
R202
C202
2200P
100K
TGND
R213
R216
R206
C209
1200P
10K
6
C226 10u6.3
EXTRES
GND
3
3
2
1
QUAL
RCLK
2
1
1
2
+
10u6.3
3
4
RDAT
5
C224
4
270P
C222
10
R221
5
10P
14
RDDA
RDCK
QUAL
16
OSC0
VREF
15
T57
1200P
C208
13
OSC1
MPX
X3
VCC
OSEL
12
10P
C221
C223
8
8
7
DGND
AFC
7
9
NOISE
9
6
7
8
10
11
FM+B
C225 0.01
TSEL
FILOUT
ARI
11
10
TM
9
+
22
R212
R209 33K
C203
R205
C201
8200P
R201
10K
5.6K
1000P
470P
C205
15K
82P
C206
R208
R204
10K
82K
C204
0.022
1
8
7
5
6
2.7K
R210
3
IN+
IN-
GND
IN+
4
OUT
IN-
+B
OUT
2
IC12
6P
R211
C210
470P
C211
R214 10K
120P
10K
C212
10K
RDSOUT
PON5V
SMETER
C207 18P
0.22
2.2M
4.7K
C252
10u16
C214
+
R215
10K
KRC-778R/RV/RY/RYV,878R,PS978R
