Kenwood KRF-V7510D Service Manual page 18

AE AF
(X09-XXXX-XX) (A/3)
15.0V
PHONO EQ AMP
J1
(AUDIO)
C103
R101 10u50 R105 100
Lch 1
+
1K R107
1 360
+
PHONO
+
R108 360
R102 C104
1K 10u50 R106 100
Rch 2
+
IC5
(2/2)
R117
Lch 3 24
1K
CD
R118
Rch 4 5
1K
2
J7
R121
Lch 1 19 -14.8V
1K
REC OUT
R122
Rch 2 10
1K
MD/TAPE
R125
25
Lch 3
1K
PLAY IN
R126
Rch 4 4
1K
3
15.0V
J2
R129
Lch 1
1K
REC OUT
R130
Rch 2
1K
MONITOR
R135
Lch 3 21
1K
PLAY IN
R136
IC7
Rch 4 8
1K ATT 1.2 SW
4
VIDEO SEL.
AC-3 ON/OFF
R139
Lch 5 18
1K
REC OUT
R140
Rch 6 11
1K
-14.8V
VIDEO1
J3
R143
IC7
Lch 1 23
1K
R
PLAY IN
R144
Rch 2 6
1K
5
R147
22
Lch 3
1K
VIDEO2
PLAY IN
R148
Rch 4 7 L
1K
R151
Lch 5 21
1K
VIDEO3
PLAY IN
15.0V
R152
8
Rch 6
1K
X05-
CN1
6 1/4
A
X08-
CN2
2/4
B
5 4
CN12
X08-
CN3
2/4
7
C
AG AH
+15V
VR-208 (X09-4890-11)
IC5
DESTINATION
UNIT No. C1,2 C3 C5,6 C7,8
(1/2)
COUNTRY ABB.
3 8 C115 R115
1 4.7u35 100 U.S.A. K
+
0-11 YES NO 3300u50 NO
2 CANADA P
+
-
C111 0.012 VR-209 (X09-4890-10)
DESTINATION
R109 270K C117
UNIT No. C1,2 C3 C5,6 C7,8
100P COUNTRY ABB.
U.S.A. K
C112 0.012 0-10 YES NO 4700u75 3300u42
CANADA P
R110 270K
KRF-V5551D (X09-4890-01)
6 C116
DESTINATION
4.7u35 UNIT No. C1,2 C3 C5,6 C7,8
-
COUNTRY ABB.
5
+
+ 7
JAPAN J 0-01 YES NO 4700u63 3300u35
4 C118
0.01
-14.8V
+15V
15V 15V
INPUT SELECTOR BYPASS(R)
R159
C169 1K
220P
R
IC6
(BOTTOM
VIEW)
L
+15V +15V
C155
15.0V
2.2u50 8 C163
5
+ 7 22u16
+
6
- +
IC8
(1/2)
R157
4.7
IC8
LINE BUFFER
R158
4.7
IC8
(2/2)
2 C164
- 1 22u16
3
+ +
4
15V 15V
-14.8V
R170 R172 R174
22K 22K 47K
R166
10K
R162
+
C170 1K
220P
(BOTTOM
VIEW)
15
R169 R171
22K 22K
16
R165
10K
+15V +15V
C171
0.01
3 2 1 1 2 3 4 5 6 7 8 9 10 11 12 13 15 14 13 12 11 10
CN8 CN9
I
E
AI AJ
C21,22, C23-26, C33,34, D1,11-14, R1,2, R3,4,16,
D26 IC3 IC4 Q2
29,30 31,32 39,40 29 15 22,25,26
NO 47u50 3900P50 NO MA111 STK407-090K STK407-290K 2SA1534A(R,S) 27K NO
C21,22, C23-26, C33,34, D1,12-14,
D11 D26 IC3 IC4
29,30 31,32 39,40 29
MTZJ7.5(B) or STK411-230K or STK410-030K or
YES 10u100 3900P500 YES MA111 2SB1640
RD7.5JS(B2) STK411-230D STK410-030D
C21,22, C23-26, C33,34, D1,12-14,
D11 D26 IC3 IC4 Q2
29,30 31,32 39,40 29
MTZJ7.5(B) or STK410-030K or
YES 10u100 3900P500 YES MA111 STK411-230D 2SB1640
RD7.5JS(B2) STK410-030D
+15V
15V
D16
C224
10u16
+
IC9
4.7u35
(BOTTOM VIEW)
ELECTRIC
VOLUME, TONE
C201
C221
0.33u50
21
0.33u50
LBASS1 22
+ 20 RBASS1
+
LBASS2 23
C202 RBASS2
0.015 19 C220
LBASS3 0.015
24
R205 C211 RBASS3
10 8200P C219 R206
18
LTRE 8200P 10
25
C203 RTRE
4.7u35 17
4.7u35
R203 C205
+
26 1K 2200P
C204 TONE
4.7u35
16 C319
3.3u550
27
+
+
R204 C206
1K 2200P
28
TONE
C320
29 3.3u50
15
+
14
GNDL 30
AVSS 7V
R213
-6.6V
470
31
13
12
GNDR
R214
470
11 32
10
GNDC 33 R217 470
R215 470
9 34
8 35 R216 470
( )
8
7
GND
+
R218 C226 R266
6 36 470 4.7u35 2.2K
( )
6
+
5 37
AVDD AGND
38
4
R211 1K
39
3
17
40 R210 1K
2 MCU
15
I/F
41 R209 1K
1
16
C200 1u50
42
+B
+
5.0V
R219 R202
220 1W R201 750 2.7K
+B
+15V +15V
-15V -15V
-31V
C327 C328
10u50 10u50
+ +
9 8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8 9
WH1
B
A
AK AL
R27,28, R229, R241, R315,316, R343, R367, R369- W4,10,12,28,57,58,60, W56,63,
R13 R21 R46
35 230 242,253 329,330,363 347,358 368 371 129,130,219,220 79,128
56K 6.2K 820 YES 13K 51K 39K 20K 3.3K 6.2K YES NO
R1,2, R3,4,16, R27,28, R229, R241, R315,316, R343, R367, R369- W4,10,12,28,57,58,60,
Q2 R13 R21 R46
15 22,25,26 35 230 242,253 329,330,363 347,358 368 371 129,130,219,220
3.9K
51K YES 43K 2.7K NO 9.1K 36K 24K 27K 2.4K 5.6K
1W
R1,2, R3,4,16, R27,28, R229, R241, R315,316, R343, R367, R369- W4,10,12,28,57,58,60,
R13 R21 R46
15 22,25,26 35 230 242,253 329,330,363 347,358 368 371 129,130,219,220
3.9K
51K YES 27K 1.8K NO 13K 51K 24K 20K 3.3K 6.2K NO
1W
+15V +15V
15V 15V
15.0V
IC10-12
Q3-8
BUFFER C237 100P
-10dB ATT +15V
C227
5 8 C321
+ 7 1u50
+
R367 C329 6
+
- +
FLch
-4.6V 47u16
0V
R231 18K
R225 IC10
(1/2)
Q3
10K
R226
Q4 IC10
10K
(2/2)
R232 18K
-4.6V C330
R368 47u16 C322
0V 2
C228 - 1 1u50
+
3
+ +
C238
+
4 0.01
15V
FRch
-14.8V
15.0V
+15V
C239 SLch
4.7u35 5 8 C323
+ 7 1u50
+
R369 C331 6
+
- +
-4.6V
47u16
0V
R243 18K
R237
IC11
10K (1/2)
Q5
R238
IC11
Q6
10K
(2/2)
R244 18K
-4.6V C332
R370 47u16 C324
0V 2
C240 1u50
- 1
+
4.7u35 3
+ +
+
4
SRch 15V
-14.8V
15.0V
Cch +15V
C251
4.7u35 5 8 C325
+ 7 1u50
+
R371 C333 6
+
- +
-4.6V
47u16
0V
R255 18K
R249
IC12
10K (1/2)
Q7
Q14 R268
1K
R250
IC12
10K Q8
(2/2)
R256 18K
0.7V
-4.6V C334
R372 47u16 C326
0V 2
C252 - 1 1u50
+
4.7u35 1.6K 3
+ +
+
4
-14.8V
SWch 15V
3.7V
-4.6V 3.6V
Q16
R269 R272
3.7V
1K 360
Q15
+
3.0V
4.6V
MUTE
ATT DRIVE
DRIVE
R356
15V
100K
-31V
10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
CN51
F
AM AN
W56,63,
79,128
NO YES
W56,63,
79,128
YES
POWER IC (FL, FRch)
IC3
D29 D11 D12
+
C22
47u50
+
-65V
C24
+
+
+37V
-37V
X
R21 W219
FIRST OFF
+65V
0V
0.7V Q37 R47
R50
Q38
4.7K 10K
+ A
-0.8V
R19
4.7K
0V
-65V
+15V
+65V
-65V
-37V
+37V
15V
-31V
Q39
18 19