Kenwood KRC-708, Руководство по обслуживанию

Страница: 11 / 25

K L M N O A B D F H C E G I J
2
1
3
5
7
4
6
0V 7.4V
4.5V
7.4V
14.4V 7.4V
0V
7.4V 7.3V 7.2V 7.2V 7.3V
7.3V 0V
14.4V
7.3V
3.2V 7.3V
0V
0V
5.0V
0V
5V
0V
5V
0V
5V
5V
0V
0V
5V
0V
5V
0V
5V
0V
5V
0V
5V
0V
10.4V
0V
10.5V
0V
-10V
-9.8V
10.4V
5V
0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
0V
4.0V
4.0V
0V
0V
4.0V
4.0V
0V
4.0V
0V
8.1V
3.5V
0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
4.8V
4.8V
4.0V
0V
8.1V
4.0V
4.0V
4.0V
4.0V
4.0V
4.0V
13.6V
1.26V
0V
0V
0V
0V
-9.4V
9.8V
0V
0V
0V
0V
0V
0V
-9.4V
0V
0V
0V
9.8V
-9.4V
0V
0V
0V
9.8V
0V
0V
0V
4.10V
4.10V
4.04V
8.11V
4.02V
4.06V
4.12V
4.10V
: 0.4V
4.04V
4.16V
4.06V
4.02V
0V
1.23V
4.06V
4.06V 0V
4.06V
4.04V
4.03V
4.06V
4.06V
4.06V
0V
B,C
OFF
DOLBY
C :
OFF,B : 0.4V
DOLBY
:
: 0.4V
:
B,C
OFF
OFF,B :
DOLBY
C :
0.4V
DOLBY
REV
FWD
: 4.84V
: 0V
: 4.05V
: 0V
PLAY
FF,REW
PLAY
DPSS : 0V
: 2.9V
: 4.94V
0V
PLAY
DPSS
METAL
ON
OFF
: 0V
: 4.84V
MUTE
: 0V
: 4.77V ON
OFF
B
C
DOLBY
: 0V
: 4.73V
: 4.43V ON
: 0V OFF
DOLBY
CONSTANT
D33
VOLTAGE POWER
VARIABLE3 TERMINAL
Q18
SW5V
Q20
B.U.5V AVR
Q21
Q22
Q23
Q19
D
DC/DC
CONVERTER
Q55
Q56
DIF VOL.
REGULATOR
Q57
Q27
Q60
Q58 Q59
Q61
Q62
D38
Q26
D39
D40
Q28
CN4
Q41
Q42
Q31
P-CON SW
MUTE
Q29
D41
Q30
Q51
SW
SVR
D52
D12
D14
D16
D18
POWER IC
Q3 Q4
J1
MUTE
Q72
IC2
SYSTEM E'sIC
Q2 Q1 Q6 Q5
4V
OP AMP
E-VOL.NC.MPX
CN6
C
IC1 :
Q1 : KRC103S
(X87-301X-XX) (X87-301X-XX)
J3 TOP VIEW
J3
D31
D17
D15
D11
D13
D51
D1
D3
J2
2 Lch 1 Rch 3 Rch 4 Lch
D7
PRE OUT
MON FADER
MUTE
MUTE
PRE OUT
MUTE
PRE OUT
D5 D6
PRE OUT
4V
OP AMP
PRE OUT
4V
PRE OUT
OP AMP
A
GND GND
FRONT REAR
PRE OUT
NON-
FADER
D21
D22
D55
DC/DC
DET
CONV.
D56
Q24
Q25
SW
P-ANT
F
D35
D36
B.U DET
ACC DET
D37
D50
Q71
D32
Q32 D43
Q39
Q44
D53
Q33
Q40
Q36
Q35
D42
Q38
Q37
B
D44
MOTOR
POWER SW
C MECHA
A8V
A8V AVR
EX AMP
DIMMER
ILLUMI AVR
14V
AVR
DRIVER
MOTOR
CN4 CN2
Q1
S1
CN3
CN1
Rch
Lch
Rch
Lch
MAIN MOTOR
SUB MOTOR
D
D
MODE SW
R
L
CH CN
M
M
REV
FWD
PLAY
PACK
IN SW
(X87-301X-XX)
22K
22K
47K
10K
10K
10K
22K
22K
47K
10K
22K
22K
47K
47K
2.2K
4.7K
47K
47K
22K
22K
22K
22K
22K
22K
47K
47K
22K
22K
10K
47K
22K
22K
(X87-301X-XX)
IC3
IC6
IC10
IC4
IC7
IC5
IC8 IC9
IC2
(X14-618X-XX) (A/2)
IC1
TAPE MECHA (D40-1138)
(E30-4779-05)
KRC-X858/708/888
DC CORD
KRC-778RV/778RYV
(E30-4789-05)
DC CORD
DC CORD
KRC-PS978R/878R/778R/778RY
(E30-4788-05)
DC CORD
KRC-PS988R
(E30-4781-05)
1
R109
22K
VIN VREF
R95 R96
C63 0.01
10u10
220u16
C85 100u6.3
+
C82
+
C84
22K
R93
100
R94
+
GND
4.3K
R89
220u10
C87
220
R92
4
47K
15K
R90
R88
1
C86
47K R87
C120
5 4
2
2.2
R144 100K
4.7u16
R141 1K
+
2.2
C117
2.2
C1
19
VOUT CAP-
BOOST V+
75
100u16
R142
C118
+
33u16
LV 3
GND
6
+
C121
OSC
2
CAP+ 7
1 8
560 1W
1K
R108 1/2W
0.022
Q57-62
2.2
10u16
C125 +
C126 2.2
C124 0.01
R152 91K
56K
R147
7.5K
2.7K
47
47
91K
91K
R150
10K
R146
R107 4.7K
3.3u25
C90
R104 4.7K
22K
R105
R106
W33
SUB+
SUB- MOT
+B
4 3 2 1
2
10
11
Q28,30,31
1/2W
89
86
1
2 3 4
0.068
C92
+
0.1u50
R110 1K
+
C91
14 13 12
5 6 7
10 9 8
C48 10u16
R134
82 92
1u50
C111
R131
+
33K
RL
FL
13
27K
R136
FR RR
430
TH1
R35 4.7K R36 4.7K
10u16
C27
+
360
R8
13
FR+ RR+
FR- RR-
C31
0.22u50
C33
0.22u50
+
4.7K
R13
4.7K
R1
1
100u16
R132
C112
1K
8
TA
B
GND RR- ST
-BY
RR+ VCC FR-
1
2 3 5 6 7 4
FRIN RRIN FR+ SVR GND
9
10
11
12
R42
22K R41
C34
0.22u50 0.22u50
750
R133
C32
+
4.7K
R12
4.7K
R14
1u50 C1
13
R38 R37
R43 10K R44 10K
4
-B
5
2
3
22K
6
RL+ RLIN FLIN ACGND FL+ GND FL- VCC GND
14 15 16 17 18 19 20
21
CD MUTE RL- GND
22 23 24 25
8 1
+B
7
82
R45 R46
10u16
+
C47
RR+
FR+ RR-
FR- RL-
FL+
FL-
RL+
2 3
10
RL-
FL+
RL+
FL-
1 2
9
FR-
RR-
FR+ RR+
ACC
TEL
MUTE P-CON
EXT
CONT
ANT
CON
GND
DIMMER
6 7 3 4 5
13 11 12 14 15
8
B.U.
16
33
ACIN RR ACIN LR ACOUT
L
ACOUT
R
ACIN RF
14
13
12
11
10
CR1
DGND
0.082
14
8 9
R22 4.7K R21 4.7K
10u16
C28
+
360
R7
R49 22K R50 22K
C157
10u16
C26
+
10u16
C25
10
360
R6
360
R5
0.018
C156
96
4.7K 0.47
C135
R162
4.7K
4.7uH
95
L7
AUX1 INR
SDA
28
VCC
1
AUX1 INL
26
SCL
27
3
MUTE
2
1
3
2
5
7
8
6
9
10
11
4
R56
R28
R55 22K 22K R27
R29 10K
R24 R23
R30 10K
5
-B
4
6 3
2
22K
R58 10K
R52 2.2K R51 2.2K
R57 10K
4
-B
2
3
5
22K
6
82
1 8
7
+B
+
4
1
+B
8
7
82
R59
5
2
3
+
1
AUX2 OUTL
HP FR1
0.01
C131 C132
GND
QUAL MP
IN
LEVEL
MP
OUT
SMUTE
18 14 12 13 15 16 17
MPX
NC NC
19 20 21 22
NC
NC
NC
AM/IF
24
23
SDA
SCL
25
NC
6
23
+
1u50
C143
AGND
25
CL1
4
CREF
24
CL2
5
0.27
7
22
C11
HP FL1
0.27
CR2
21
HP FL2
0.27
8
AUX2 OUTR
29
CDL OUT
NC
NC
NC
CDL
NC
27
VDD
26
OUT RR
28
CDR OUT
CD GND
CDR
31
30
OUT RF
OUT LR
32
NC
OUT LF
+
0.27
C13
C14
19
HP FR2
20
C12
HP FLOUT
9
18
HP RL1
0.27
C15
HP FROUT
0.27
C17
0.27
C18
16
C16
17
HP RR1
0.27
HP RL2
HP RLOUT
OUT REF
HP RR2
15
HP RROUT
34
35
C21 0.1
C20 0.1
C19 0.1
C22 0.1
10
11
13
14
Lch Rch GND A
GND
1 2 3 4
35 34
C133
CREF VREF T
APE R
T
APE L
ACINLF
44 43 42
41
40 39
NC
34 37 36 35 38
+
W4
W2
W3
W1 44 43
4 2
RL
W8
RR
W7
No.
CXA2561Q
2-70
IC1
UNIT
C24
0.047
4
C81
+
FL+
FL-
RL- RL+
1u50
+
C114
44
100
84
R135
1 9 5
4
3
6 2
11
10
12
13
8
7
1
2
3
4
5
6
7
8
9
10
11
12
13
REQ H
D GND
B.U.
CH CON
MUTE
A
GND
RST
Rch
REQC
D
ATA
C
D
ATA
H
Lch
CH CLK
1
2
3
4
5
6
7
8
9
10
11
12
13
REQ H
B.U
MUTE
Rch
A GND
REQ C
RST
DATA C
CH CLK
Lch
DATA H
D GND
CH CON
+
C51
10u16
82
R31
10u16
C43
+
C44 10u16
R32
82
+
C52 10u16
82
R60
+
R9
360
10
C29
10u16
+
360
11
10u16
+
R10
C30
220
R34 R33
220
R48
220
R47
220
1000P
C57
1000P
C58
C61
0.01 0.01 C60 0.01 C59
1000P
C55
1000P
C56
1000P
C53
1000P
C54
C4 0.01
R71 100
0.47u50
+
C1
10
R1
4.7
R3
47u6.3
+
C3
R2
10
C2
+
0.47u50
R74 1K
R72 2.2K R73 3.6K
R75 1K R76 1K
R77 100
47
R78
R80 100K
R81 100K
R82 100K
R79 100K
100K
R83
4.7
R143
10u16
+
C123
3
100K
100K 12K
12K
R97
R98 R102
R101
90
93
5.6K
R99
1000P
C88
3.3K
R100
18K
R103
0.01 C89
1/2W
83 97 93 RST
1
3
5
1
2
39
38
3
8
9
10
12
12
10
10K
R111
R1
12
100K
0.01 C93
R117
1K
560
R1
14
34
4
C94 1u50
+
R124
750
48
FR
FL
W5 W6
R149
R145 C122 R148
R153
R151
C1
15
C1
16
37
16
18
1.2K
R115
100K
R1
16
C8 2.2 C7 2.2 C9 2.2
C10 2.2
C6
2.2u35
C5
2.2u35
C136
12
0.1
C137
14
R161
120P
0.027
C138
C142
+
1K
R118
10K
R119
-G
MOT
98
92
+
1/2W
Q33,40,44
40
39
38
37
36
35
34
33
32
31
30 29 28 27 26 25 24 23 22 21
11
12
13
14
15
16
17
18
19
20
1
2 3
4
5 6
7
8 9
10
PB FB1
PB R IN1
PB GND
PB F IN1
PB REF
VCT
PB F IN2
PB GND
PB R IN2
PB FB2
PBTC2
PB OUT2
OUT
REF2
T
APE IN2
GND
DIREF
LINE OUT2
TCH2
TCL2
MS SW
G2FB
G1FB
MSTC
MS OUT
NR MODE
NR SW
MUTE SW
TAPE SW
DR SW
MODE
PBTC1 PB OUT1 OUT
REF1
T
APE IN1
VCC NC LINE OUT1 TCH1 TCL1 MSLPF
MS MODE
7 6 1 2 3 4 5
+B 8V
OUT
-L
A
GND
OUT
-R
ON/OFF
DOLBY
B/C
MS OUT
DOLBY
13 12 11 10 9 8
MTL
MUTE
F/R
MODE1
MODE3
18 17 15 16 14 19
T
APE IN
R REEL MODE2 F REEL
D GND
PON 5V
L
GND
1 2
R
3
15
16
17
18
19
20
14
R9
C17 0.47
C20
R10
5600P
R8
0.22
C23
C24
C13 0.1
C21 0.068
47u16
C6
+
0.1
C1
1
VR1 10K
0.01
C7
R11
56P
C25
R13
5
4
3
2
1
5
4
3
2
1
1
2
3
4
5
6
7
8
9
9
8
7
6
5
4
3
2
1
20 16 17 18 19 14 15 15 16 13 14 12
R16
120
15
16
14
13
12
C14 0.1
C22
R7 20K
C12
0.1
10K VR2
R12 0.01
C8
C26 56P
C5 33u10
+
+
33u50
C16
C15 33u50
+
C3 470P
180
R6
R5
180
R3 24K
C1 470P
R1 24K
470P
C4
470P
C2
R4
24K
24K
R2
2
4
3
1
TAKE UP
C
E
C
E
3
1
2
A
K
A
K
C
SUPPLY
0-11 CXA2560Q 0.039
Dolby BC
Dolby B
NO
YES
C25,26
R8
680K
560K 3K
3.6K
R9 R10
33K
30K
R11,12
2.4K
1K
PNK/BLK BLU
BU
1
YEL
EXT.
CONT
ILLMI
ORG/WHT
3
2
4
BLK
GND
ANT CONT
P. CON
BLU/WHT
RED
ACC
REAR L
REAR R
6
5
VIOL
GRN/BLK
VIOL/BLK
7
8
GRN
FRONT L
GRY
FRONT R
WHT/BLK
GRY/BLK
WHT
3 1 7 5
FR+
5 7
RL- FR- FL- FL+ RL+
6 8
1
3
RR+ RR-
B
2 4
GND
BU
6 8
A
2 4
VIOL/BLK
GRN/BLK
ORG/WHT
PNK/BLK
TEL MUTE
EXT. CONT.
RR+
RL+
RL-
RR-
WHT GRN
BLU/WHT BRN
14
15
16
YEL BLK
RED
3
2
1
GRY/BLK
WHT/BLK
BLU/WHT
GRY VIOL
12
13 5
4
9
10
11
8
7
6
FR+
P. CON
FL+
FL-
FR-
5 7 1 3
8
RL+
7
RL-
3 5 1
RR-
FL+ FL- FR- FR+
RR+
6 4 2
B
PNK/BLK BLU/WHT
8
GND
6 4 2
A
ACC
ORG/WHT
1
2
YEL
EXT. CONT.
TEL MUTE
BRN
3
4
RED
BLK
BLU/WHT
P. CON
GRN/BLK
RR+ 5
VIOL
VIOL/BLK
RR-
RL-
6
7
RL+ 8
GRN
WHT/BLK
GRY
FR+
GRY/BLK
FR-
FL-
WHT
FL+
BU
1 GND
6
3
ILLMI
ORG/WHT
2
YEL
REAR R
EXT.CONT
PNK/BLK
4
BRN
5
VIOL
P. CON/ANT CON
RED
BLK
ACC
BLU/WHT
GRY
FRONT R
REAR L
GRN/BLK
VIOL/BLK
7
8
GRN
FRONT L
WHT/BLK
GRY/BLK
WHT
9
10
11
12
16
13
14
15
9
10
11
12
16
13
14
15
10
9
11
12
16
14
13
15
R1
13
7.5K
0.01
C95
25
VDD
GND
4.7
0.068
10K 2.2K
MS
BU
ACC
TEL MUTE
KRC-778RV/RYV
KRC-778R/RY
KRC-X858
KRC-888
KRC-708
KRC-878R
KRC-PS988R
KRC-PS978R
NAME
MODEL
0-11
No.
UNIT
2-70
3
2
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