Kenwood KRF-V7070D Service Manual page 13

AO AP
IC101 : NJM2284D Q101 : UN4212 or Q204
IC102 : BA7666FS DTC124ESA
IC201 : BA05T Q203 : KTC3199(Y,GR) or
IC202 : TC74HC00AP 2SC2785(F,E) or Q301-320,403-408,411,412
IC401,403 : NJM4580D-D 2SC1740S(Q,R)
IC402,404 : NJM4565D-D Q401,402,409
1
A
(X25- ) (B/2) : EXCEPT KRF-V7070D/-S
WH1-1
20dB ATT.
DRIVER
12.2V
CN301 R450
R452 15 560 1/4W
+12V 1 +12V
1/4W
2 GND 2
R434
15
-12V 3 12.2V R451
1/4W 1K
1/4W
C459
X09-A/5-
47P
PMUTE 4 4
CN5
SL OUT 5
2/4
FL-OUT 6
C OUT 7
AD-7
FR OUT 8 8
C401
SR OUT 9 9
22u50
FL 10
+
SL 11
R435
C 12
3 10K
SBR 13
Q403
SR 14
R436
FR 15
10K
SW OUT 16
SB OUT 17 Q404
C402
SUR MUTE 18 18
22u50
SB MUTE 19 19
+
C403
22u50
+
R437
WH2-1 10K
4
Q405
WH2-2
R438
10K
Q406
C404
22u50
+
C405
22u50
+
R439
5
10K
Q407
R440
10K
Q408
C406
22u50
+
C449
22u50
+
6
R463
10K
CN303
Q411
X09-A/5- GND 1
R464
WH221
10K
20dB ATT 2
2/4
Q412
SW IN 3
C452
22u50
SB IN 4
W - 7
+
7
CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list).
nents. 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.
AQ AR
X09-A/5-
: KTA1267(Y,GR) or D203-206 : 1SS133 or WH4
2SA1175(F,E) or HSS104A
2SA933AS(Q,R) D401 : MTZJ3.9(B) or AK-2
2/4
RD3.9ES(B)
: 2SC2878(B) D402 : MTZJ5.1(B) or
: DTA124ESA or RD5.1ES(B)
UN4112
CN304
1 2
WH1-2
Q401
+12V
SUR. MUTE
DRIVER R430
C437
10K
12.2V
22u25
+12V
Q409 Q402
SB MUTE
19 DRIVER
4.9V
R433
402
1K
R431
10K
R343
220
Q311
4
+12V
IC401(1/2)
FL Q312
C431
R419
3 8
R344
1 22 47u25
2 220
+
20dB ATT. C441
R353
100u10 R413 4.7K
220
+
R407
C425 100P
Q313
560
C426 100P
R408 C442
560 100u10 R414 4.7K
+
R420 C432
6
20dB ATT.
22 47u25
7
5
+
4
Q314
FR IC401(2/2)
R354
12.2V
220
+12V
IC402(1/2)
SL
R421 C433 R355
8
3
1 22 47u25 220
2
+
20dB ATT. Q315
C443
22u50 R415 47K
+
R409
C427 10P
6.2K
401
C428 10P
R410
C444
6.2K 22u50 R416 47K
Q316
+
R422 C434 R356
6
20dB ATT.
22 47u25 220
7
5
+
4
SR IC402(2/2)
12.2V
+12V
C439 R357
IC403(1/2)
C
47u25 220
R423
3 8
+
1 22
Q317
2
20dB ATT. C445
22u50 R417 47K
+
R411
C429 10P
6.2K
C430 10P
R412 C446
6.2K 22u50 R418 47K
Q318
+
R424 C435 R358
6
20dB ATT. 22 47u25 220
7
5
+
4
C436 R359
SBR IC403(2/2)
47u25 220
12.2V
+
Q319
+12V
IC404(1/2)
SW
R461
8
3
22
1
2
20dB ATT.
C451
R459 220u25 R455 47K Q320
+ C440 R360
1.2K
C457 3900P 47u25 220
+
C458 10P
R460 C450
6.2K 22u50 R456 47K
+
R462
6
20dB ATT.
7 22
5
4
SBL
IC404(2/2)
12.2V
AS AT
SIGNAL LINE
X09-A/5-
GND LINE
WH1
B LINE
+B
B B LINE
2/4 AK-2
J101
CR
CN302
1 2 3 4 J301
Rch
CR
C316
100P CB
Lch SPEAKERS
CB
SURROUND BACK/
SUB WOOFER
R301 R331
220 47
DVD &
Q301 VIDEO IN
J302
ROOM B
ROOM B
Lch
L
Y
ROOM B
R
ROOM B
Q302
Rch
Y
R302 R332
220 47
J102
R303 R333
220 47
CR
Q303
MONITOR
Lch
FL
OUT
CB
FR
Rch
Q304
R362 R334
220 47
Y
R305 R335
220 47
Q305
SLch
SL
SR
SRch
PRE OUT
Q306
R306 R336
220 47
R307 R337
CN202
220 47
IR-SW 1
Q307
X14-
CE
WH87
SBLch
DATA
SBL
4/4 CLK 4
+7.3V
BM-1
D-GND
SBR
REMO-
SBRch
CON
Q308
R308 R338
220 47
R309 R339
220 47
Q309
J303
Cch
C
SW
SWch
Q310
R310 R340
220 47
Q301-310,
311-320
MUTE
indicates safety critical compo-
AU AV
(X25-6490-14)
DESTINATION
MODEL NAME UNIT No.
(X25-6490-14) (A/2)
COUNTRY ABB.
: EXCEPT KRF-V7070D/-S KRF-V8070D-S EUROPE E2
0-13
KRF-V8070D EUROPE E8
KRF-X9070D-S EUROPE E3
C110 2-72
EUROPE E9
47u25
KRF-X9070D
PX Y1 2-72
+
U.S.A. K8
VR-7080 0-14
CANADA P8
U.S.A. K7
VR-7070 0-14
C111 CANADA P7
47u25
U.S.A. K6
VR-7060 0-13
+ CANADA P6
C112
47u25
+
+5.1V
C113
47u25
+
IC101
IC101
COMPOSITE
SELECTOR
C114
47u25
+
C115
47u25
+
6dB & 75
IC102
R110 C116 DRIVER
75 22u50
9 8
OUTC2 GND3
+
C118 C117
470u10 47u25
10 7
OUTC1 INC
+ +
6
11
NC1
R111 C119
NC2
5
75 22u50 12
GND2
OUTB2
+
C120
C121
47u25
4
470u10
13
INB
OUTB1 +
3
+
GND1
R112 C122
75 22u50 C123
14
OUTA2 47u25
2
+
INA
C124 +
1
MUTE
470u10 15
OUTA1
+ 16
+5.1V VCC
+5.1V
+5V
W5
IC202
IR/RF
SWITCH
2
+5.6V
3
IC201
AVR
R205
100
5 +7.9V IN OUT +5V
GND
6
0.6V
7
+7.9V +7.9V
D206
R202
+5V
10K
R207
1K
VR-7060/7070/7080/KRF-8070D/8070D-S/X9070D/X9070D-S (3/4)
KRF-V7070D/V8070D/X9070D/VR-7060/7070/7080
Y05-4700-10
AW AX
A C
NO NO
YES NO
YES NO
YES YES
YES YES
NO NO
CN101
4.8V
1 CV MUTE
X14-G/11-
2 CTRL
WH66
+5.1V 3 +5V
Q101
4/4 BD-1
R113
10K
4 GND
CV MUTE
The DC voltage is an
actual reading mea-
sured with a high
impedance type volt-
meter with no signal
input. The measurement
value may vary depend-
ing on the measuring
instruments used or on
the product.
C
R216
220 J201
IR IN
D203
R217
470 1/4W
+7.9V
R208
7.9V 22K
R210
Q203,204
100
REPEATER
R213
OUT AMP
Q204
470
Q203
1/4W
IR OUT
R214
J202
R211 470
22K 1/4W
C214
0.01
P201