Kenwood KRF-V7070D, Service Manual

Page: 11 / 32

U W Y AA AC V X Z AB AD
C53 0.1
R112 100
R222 100
R162 100
R161 100
R221 100
R111 100
C57 2.2u50
C58 2.2u50
C55 2700P
C312 100u10
C352 220P
C46 0.082 C47 0.082
∗
W6
∗
W7
∗
W5
R311
68 1W
C44 47u25 C45 47u25
R310
68 1W
C231
220P
C232 220P
47
R314
680 1W
C223
47u25
C310
R312
1
1 2 3 4 5
3
1
2
8
5
7
6
4
L.AUX
G.GND
R.AUX
R.TUNER L.TUNER
+12V
G.GND G.GND
4 3 2 1
SW OUT
SB OUT
-20dB A
T
T
GND
8
7
6
5
4
3
2
1
SBR
SR
FR
-12V
GND
+12V
G.GND
PROT
22u50
∗ C227
10K
R230
10K
R229
R231 1K
R437 1K
R438 1K
R232 1K
47
R235
100K R233
100K R234
47u25
C224
15K
R226
R224 47K
4.7u50
C222
22u50
∗ C228
1K
R237
22u50
C229
22u50
C230
C233 470P
2.2K
R225
R223 47K
R227 47K
C225 3900P
C226 10P
R228 47K
4.7u50
C221
22u50
C351 220P
C353 220P
R351 100
R352 100
R353 100
7.5K R59
C51 0.1
C354 1200P
22u50
64 63 62 61 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
1
2 3 4 5 6 7 8 9
10
11
12 13 14 15 16 17 18 19 20
21
22 23 24
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
R 6ch
R REC
R MD REC
R V1 REC
Rch
R LOUDNESS
IN GND
L
LOUDNESS
Lch
VOL
GND3
DVD/6ch FL DVD/6ch SL
DVD/6ch C
DVD/6ch SW
DVD/6ch SR DVD/6ch FR
R2 BASS
R TRE
R T.OUT
FR VIN
FR OUT
SR OUT
SBR OUT
SW OUT
C OUT
SL OUT
FL OUT
OUT GND
DGND
CLOCK
DATA
LATCH
L V
3
L
6ch
L R
E
C
L
MD REC
L
V1 REC
VOL
GND1
FL
IN
SL
IN
SBL
IN
C IN SW IN SBR IN SR IN FR IN L1 BASS L2 BASS L
TRE
L T
.O
U
T
FL
VIN
VOL
GND2
TIM1 DVDD
R V3
R V2
R V1
R MD/TAPE
R AUX
R TUNER
R PHONO
R CD/DVD
AVEE(-7V)
L CD/DVD
L PHONO
L TUNER
L AUX
L MD/TAPE
L V1
L V2
C2
220P
C1
10u50
10u50 1K
R2
1K
R1
220P
C52 0.1 C54 0.1
C56 2700P
7.5K R60
VOL
GND4
R1 BASS
SBL OUT
AVCC (+7V)
3 2 1
45 47 48 50 51 44
9
10 13
11
12 14 15 16
35
33
15 14 16
25
26
27
9
33
8
35
7
6
R236
+ +
+
+
+
C3
C4
+
54 58
(+5.0V)
64 62
61
5 4
3
1 2
C31
1
34
37
32
4700P
∗
R80
R169
100
R120
47K
R118
C116
R114
1K
100K
R434
2.2K
R1
16
3.3u50
C1
12
3.3u50
C1
14
R163
100K
47K
R435
R167
1K
R431
100K
3.3u50
2.2K
+
+
C161
∗
C163
R165
1K
R63
1K
47K
R67
∗ W3
R601 1.5K
R605
∗
R603
∗
C65
C63
∗ R65
3.3u50
+
∗
W21
+
R606
1K
R64
100K
47K
R68
1K
R432
C171 100P
R189 47K
C175 10P
330 1/4W 330 1/4W
R138
C124
220u10
C122 100P
C126 10P
R140 47K
330P
C128
1/4W
R136
5.6K
C120
1.5K
R126
R124
R128
1.5K
6.8K
R122
5P
C1
18
∗
R130
47P
C136
C165
330P
1.5K
R175
R177
1.5K
R132
220
R134
220
1/4W
1/4W
∗
C173
R187
22u50
C134
220 1/4W
47 1/4W
R146
47P
C138
R148
470
VR4
4700P
∗
R384 R382
30K
47 1/4W
560P
R144
1K
R191
100
R386
R388 470
C177
1/4W
∗ C181
R185
5.6K
10P
100
2200P
C169
3.3K
R173
R171
C167
6P
6.8K
∗
R179
C185
47P
C73 100P
1.5K
R75
330P
C67
R77
1.5K
R181
220
1/4W
1/4W
220
R183
C77 10P
∗
C75
330 1/4W
R89 47K
R87
220 1/4W
R197
47 1/4W
R195
470
VR5
∗
R403
4700P
R401
30K
47 1/4W
560P
R193
47 1/4W
R95
1K
R91
R405
100
C79
R69
C71
2200P
100
R73
3.3K
R71
8P
C69
6.8K
∗
R79
C87
47P 10P
∗ C83
5.6K
R85
1/4W
C72 100P
1.5K
R76
C66
330P
1.5K
R78
R81
220
R83
1/4W
1/4W
220
∗
C74
C76 10P
R90 47K
R88
330 1/4W
47 1/4W
220 1/4W
470
R97
VR1
47P C89
∗
C85
∗
R359
4700P
R357
30K
560P
R93
47 1/4W
R96
1K
R92
100
R361
R407 470 R363 470
∗
R604
1.5K
∗
W4
R602
3.3u50
C62
∗
W20
∗ C64
∗
R66
R84
C70
2200P
100 R70
3.3K
R74
R72
7P
C68
6.8K
C86
47P
10P
∗ C82
R86
5.6K
1/4W
R82
220
C78
1/4W
1/4W
220
R94
220 1/4W
470
VR2
R98
47 1/4W
47P
∗
C84
C88
∗
R358 R356
30K
560P
R360
100
R362 470
C OUT
13
FL
OUT
-12V
P
MUTE
+12V
GND
SL
OUT
19
14 16 18
17 15
SBR
SR OUT FR OUT
9
10
7 8 6
C
SL
8
FL
10 12
9 11
SR
6
7
Q26
Q45
Q32,34
C358
Q51,53 Q11,13
Q5
C359 C355
Q6
+
+
76 70 77 69
4 3
+5.1V
R343
10 1W
4.7u50
C14 3300P
R1
1 22K
C13 3300P
R12 22K
R4 30K
360
C6 220P
100
4
6 5
C10
R6
270P
360
C8
100u10 100u10
C7
R3 30K
C5 220P
2
C9
R8 R7
C12 0.012
R9 270K
C1
1 0.012
R10 270K
270P
C320 100P
C18
100P
R14 47K
C16
7
4.7u50
+
C17
100P
R13 47K
1
C319 100P
100
8
3
R5
C15
470u16
470u16
C324
C325
Q12,14
C356
32
34
37
10 1/4W
SW OUT
47K
R355 3K
10 1/4W
C314 47u25
14 13
47u25
SB IN SB OUT
VDD
(SB)
u-COM
1
2
12 10
R315
VCC
9 8
SW IN u-COM (SW)
11
6 7 3 4 5
R316
C313
75
71
R342
47 1W
38
15
1
4
1
4
63
+7V
+7V
80
IC4
31
13 11 15
38
31
12
14
10 5
+12V +12V
+12V
15 14 13 12 11
+12V
12.2V
+12V
12.2V
+B
B
+B
B
48.3V
B
+B
+47.2V
+B
12.2V
7.5V
+12V
+12V
8
7 5
6 4
3
1
2
2 1
11 12
1 2
10
9 7 8
2 1 1 2
6 5 1 2
2 1 1 2
4 3
12.2V
IC5
+B
B B
+
2.2
R313
+
+
+
+ +
+
2200P
3.3K
FR
-6db A
T
T
DSP
R
DSP
L
-12V
+12V
AN L
AGND
FL
3 2 4 7 8 6 10 9 5 1
AN R
AN R
4 3
ANL
R
2
1
DSP
R
DSP
R
OUT
5 7 6
-7V
11 12
DSP
R
+7V
13 14 8 9 10
DSP
L
SW
AN L
DSP
L
AN L
AN L
3
2
8
4
1
6
5
7
R616 10K
4.7K
R618
C606 82P
R620 4.7K
R622 13K
4.7K
R617
47u25
+
C603
10K
R615
C605 82P
R619 4.7K
R621 13K
+
C607
22u50
R611 270
270
R612
R623 100K
100K
R624
R613 47K
1K
R614
47u25
+
C604
+
C608
22u50
BLU
1 2 4 3 7 8 5 6 9 10
BLK RED BLU RED
WHT
BLK
YEL
GR
Y
ORG
21
19
∗ W22
9
16
∗ W23
9
16 13
6
6
OUT
SW
AN R
D
SP
L
SW SW
OUT
OUT
WH2-2
RED BLUE
47P
C187
∗
C183
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+12V
+
+ +
+
+
+
+
33P
∗
C610
330P
∗
C609
WH2-1
WH5-2 WH5-1 WH6-2 WH6-1
+47.2V +47.2V +47.2V +47.2V
+47.2V +47.2V +47.2V
+15.4V
+15.4V +15.4V +15.4V +15.4V
+15.4V +15.4V +15.4V
48.3V 48.3V 48.3V
48.3V 48.3V
+12V +12V
12.2V 12.2V
12.2V
12.2V 12.2V 12.2V
12.2V
12.2V
12.2V 12.2V
12.2V
12.2V
12.2V
12.2V
6.9V
+7V
+7V
+7V
+7V
R354
+7.3V
+12V
+12V
+12V
+12V
+12V
+12V
D21
D20
Q338
Q337
D22
CN3
E22
WH21
: 1SR139-400 D14,15
: 1SS133 or
D1-6,13,16,28-30,32-35,
53,54,57,58,61,64,66,
: 1SS244
D27,51,52,55,56,59,60
: 2SA992(F,E)
Q1-4,21-24,41-44,308,359,
: 2SA1123(R,S) Q5,6,25,26,45,46
: 2SB1640 Q304,306
: 2SC1845(F,E)
Q353-358,360,361,363,364,
: 2SC2631(R,S) Q7-10,27-30,47-50
: 2SC2878(B) Q331-338,605,606
: 2SC3940A(R,S)
: 2SD2525 Q307
: BU4066BC IC3
: KTC3200 Q301,309-312
: MTZJ3.9(B) or D63,65,67,69
: MTZJ5.1(B) or D22,26
: MTZJ6.8(B) or D20,21
: MTZJ7.5(B) or D605-607
: D24
: D23
: MTZJ15(B) or D18
: MTZJ16(B) or D17,19
: NJM4565D IC4
: NJM4580L IC1
: TRAIT3KN Q11,12,31,32,51,52
: TRAIT3KP Q13,14,33,34,53,54
: TS6P03G-B or D11,12
: UN421N Q305,313,351
: UN4212 or Q352,608,609
: UN4219 or Q302
∗
WH221
C
E
INPUT SELECTOR
& E.VOLUME
IC4
(1/2)
(2/2)
IC4
Q334
Cch
Q335
FRONT Lch
Q605
ATT.
6dB
Q331
Q606
D604
D28
Q26
Q22
Q24
Q28
D4
Q30
Q34
Q356
Q32
D56
Q603
D603
Q45
Q604
Q41
Q43
Q47
D5
Q357
Q53
D59
Q51
Q5
Q3
Q1
Q7
D602
Q602
D1
Q9
Q13
Q353
D51
Q11
Q332
Q6
D2
Q2
Q4
Q8
Q10
Q14
Q354
D52
Q12
∗
CN5
CURRENT
MIRROR
1st
SURROUND Rch
MIRROR
CURRENT
1st
PROTECTION PROTECTION
POWER
AMP
IDLE ADJ.(SRch)
2ND
AMP
POWER
IDLE ADJ.(Cch)
POWER
AMP
PROTECTION
IDLE ADJ.(FLch)
2ND
MIRROR
CURRENT
1st
PROTECTION
MIRROR
CURRENT
IDLE ADJ.(FRch)
2ND
1st
FRONT Rch
SW OUT
SB OUT
(2/2)
R OUT
IC1
(1/2)
L OUT
IC1
AMP
POWER
PHONO
EQ AMP
Q351
Q352
B
D221
SW&SB
PRE AMP
MUTE
∗
CN15 CN14 CN13 CN12 CN10 CN11
Q303
: M61516FP IC2
SB/SW
SWITCH IC
SEL.
SB/SW
MD/TAPE
REC OUT
VIDEO1
REC OUT
SB/SW
SLE.
6dB ATT.
D25 :
362,365,607
602-604
4/4
WH20
X14-H/11-
X25-B/2-
CN303
3/4
CN301
3/4
X25-B/2-
68,602-604
CN8
(1/2)
IC6(2/2)
AN L
OUT
IC6
Q609
Q608
D606
D605
AN R
OUT
WH7
F
IC6 : NJM4580D-D
Q49
2ND
DTC113ZSA
DTC124ESA
HSS104A
D5SBA20F03
RD16ES(B)
RD15ES(B)
RD6.8ES(B)
RD7.5ES(B)
RD3.9ES(B)
RD5.1ES(B)
D607
: LC4966 IC5
D221 : MTZJ11(B) or
RD11ES(B)
∗
∗
∗
IC2
IC5
(X09-6760-10) (A/5)
IC3
(X09- ) (E/5)
SW:4.8V
SB:0V
HI-TAP ON : -61.3V
OFF : -55.3V
OFF : 55.3V
ON : 61.3V
HI-TAP
4.9V
0.6V
-46.2V
0V
46.2V
46.8V
33.3V
-46.8V
1.2V -1.2V
-46.2V
0.6V
0V
46.2V
46.8V
33.3V
-46.8V
1.2V -1.2V
-46.2V
0V
0.6V
33.3V
-46.8V 46.2V
46.8V
-1.2V 1.2V
0.6V
-46.2V
-46.2V
0V
-46.8V 46.2V
46.8V
-1.2V 1.2V
33.3V
20mA 20mA 20mA 20mA
BA-6
AO-6
AO-3
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