Kenwood RXD-DV50 Service Manual page 13

AO AP
MAIN BOARD
CP401
RDSCLK 1 12
RDSDATA 2 13
CE 3 14
+12VA
1 DI 4 15
CLK 5 16
DO 6 17
DGND 7
FMVSM 8
R421
NC 9
10
+12V 10 +12VA
NC 11
C401 4.7u50
L OUT 12
+
AGND 13
C402 4.7u50
R OUT 14 +
C403 4.7u50
MUTE 15 18
+
TUNED 16 19
R424 470 C404 4.7u50
+
2 5.0V
C405 4.7u50
STEREO 17 5.0V
+
Q401
C406 4.7u550
5.0V
+
C407 4.7u50
+
R425 470 C408 4.7u50
+
CP402
PB-L 1
REC-L 2
DVD-
AGND 3
CN908
AGND 4
1/4
REC-R 5
PB-R 6
3
A
GND 7
GND 8
F-3
+12V(A) 9 +12VA
+12V(A) 10 +12VA
+12V(M) 11 +12VM
+12V(M) 12
+5V 13
JK402
R472
470
Lch
AUX IN
R473 R477
470 56K
Rch
DV70 ONLY
4
AUX OUTPUT
AMPLIFIER
Lch
-11.0V
AUX OUT
0V
R462 C470 4
R491 1K 4.7u50
0V 1
Rch
+
1K R463
D1 R460
4.7K
15K
D2 0.6V
Q406
C466 100P
0V
C441
0.1
R464 C467 100P
Q407
4.7K
R467 15K
JK401
0.6V
R466 C473
0V 1K 4.7u50 7
SUPER
+
WOOFER
0V 8
5
PRE OUT
AUX OUTPUT 12.0V
1dB STEP
Q408
ATTENUATION 4.0V 0V
4.0V
CN352 CP352
1 1
M
2 2 +12VM
6.0V
R357 R356
0V R355 100
4.7K 4.7K
7.0V
FAN MOTOR
-0.6V
Q255 R372 R371
R358 0.6V
Q256
4.7K 4.7K
10K 6.0V 0V
12.0V
Q253
0V
R373
0.7V
Q257
10K 12.0V
CN350 CP350
6
0V 12.0V
1 1
0.2V
2 2
Q254
0V
CN351 CP351
2 2
1 1
FRONT-
CP804
1/4
F
7
AQ AR
+12VA
R402
100K
FUNCTION SELECTOR/
TONE/VOLUME
CONTROL
IC401
5.3V 11
5.3V 12
ATT
6 4.6V
VOLUME TREBLE MODLE BASS L-CH
5.3V 13
29 0V
5.3V 14
30 4.6V
I'CBUS DECODER+LATCHES
5.3V 10
1 4.5V
5.3V 9
5 5.0V
VOLUME TREBLE MODLE BASS ATT
5.3V 8
R-CH
3 10.5V
5.3V 7
5.3V
SUPPLY 4 0V
5.3V
5.3V 5.3V
+12VA +12VA
+12VM +12VM
9.0V
+12VA
IC403
C422
1 14 0.022
VDD
2 13
3 12 0V
4 11 0V
R438
100K 9.0V 5 10
0V 6 9
9.0V 7 8
VSS
R457 12VA
220
12VA 12VA
C465
Q404
4.7u50
3 0V 9.0V 0V Q402
+
2
IC406
(1/2)
0V
9.0V
Rch
Q403
Q410
0V 0V
Lch
0V
0V
0V
IC406 Q409
6
C468 3.0V
(2/2)
5 0V 4.7u50
+
R470 0V
220
+12VA +12VA
R244
Q258
22K
+12VM +12VM
6.0V
Q252
-2.0V
0V
Q259
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
CP404
RECORDING LINE
SIGNAL LINE
GND LINE
+B B LINE
B B LINE
AS AT
12VA
+12VA
+12VA
+12VM
PRE
AMPLIFIER
+12VA
R414
IC402
-9.0V 220
(1/2)
C416
C431 R263
4.7u50 4
0V 3
4.7u50 1K
1 0V
+
0V 2
+
0V 1.0V
R413 47K R264
R405 1K
30
4.7K
C433 C450
R406 1K Q219
0.15 0.15
1
0V
C420
4.7u50
R431 5.6K
11
+
R432 5.6K
8
C434 C453
0.15 0.15
R418 47K
C436
0V 6
7 4.7u50
0V 5
+
0V
IC402 8
(2/2)
9.0V
R293
220K -1.0V 0V
R271
4.7K
Q224
+12VA
+12VM
0V
-9.0V
Q223
+12VA
5.0V
+12VA
5.0V
11
0V
0V
8
12VA
12VA 12VA
Q245
5.0V 11.0V
+5V
5.0V
DIFFERENTIAL
AMPLIFIER
C252
100u16
12.0V 11.0V
+
Q244
12.0V
+12VA
1 2 3
CP405
L-7
AU AV
+B
POWER
46.0V
DIFFERENTIAL VOLTAGE
C208
AMPLIFIER
AMPLIFIER AMPLIFIER
45.0V 100P
48.0V
R256 Q217 R237 30.0V
D235 Q212
10K 100
1.0V
C213 C212
10P 8P 1.0V
R250 -0.4V
0.6V
Q213
C218 R261 Q218 R254 3.3K
Q220
1.0V
Q215
4.7u50 560 56K
0V 0V
+
-46.0V 1.0V
-0.5V
R259 C215 45.0V
47 820P
0V
Q250
R248 Q243
0V 100
C216 C211
-1.0V
Q214
47P 47P C210
0V -1.0V
-30.0V
100P
-46.0V VR201 -48.0V
-46.0V
IDLE
Q221 Q216 CURRENT
ADJ.(Lch)
-46.0V
B B
VR202
-46.0V
IDLE
Q222
Q227
-46.0V R340
CURRENT
-46.0V
10
ADJ.(Rch)
C221 -0.4V C226 C227 48.0V
-30.0V
47P 47P R286 100P
Q249 Q230
100
0V -1.0V
0V
1.0V
46.0V
R276 C222 Q229
0V
47 820P
-46.0V
C219 R274 R280
1.0V
4.7u50 560 56K
0.5V
+
-0.5V
0V R292
Q225 Q226 -1.0V
3.3K
0V
R297
C225
0.5V
D234
Q228 100
C224 8P
R200
10K 10P 1.0V
Q233
Q232
C229
45.0V 30.0V
VOLTAGE
100P
48.0V
46.0V
AMPLIFIER
+B
POWER
AMPLIFIER
1
2
CURRENT
PROTECTION
R322 R319
18K 18K
R320
Q239
D228
560 1W
12.0V 0V
+12VA
12.0V
R474
47K
12.0V
K201
Q240
0V
0V
Q241
0V
R480
47K
+12VA +12VA
DC FRONT SPEAKER
PROTECTION RELAY ON/OFF
0V 3.0V
Q242
R327
2.2K
0.6V
Q251
0V
5
6
4 5
Q201,202,236,252,255 Q210,211 : 2SC5198
IC401 : TDA7439D : KTC3205Y Q212,234 : 2SC5200
IC402,406 Q203,204,217,232,235, Q213,233 : 2SC4793
: BA4558 237,238 : KTA1024 Q214,230 : 2SA1943
IC403 : MC14066 Q205 : KTB631K Q215,228 : 2SC4883A
Q206,207 : 2SA1941 Q218,220,225,226
Q208,216,221,222,227,231, : KTA1268
242,249,250 : KTC3200GR Q219,224,246,247,
Q209 : KTD600K 406,407 : KTD1302
AW AX
12VA
+12VA
+12VA
+12VM
+B +B
VDD CONTROL
POWER SUPPLY
48.0V
48.0V
48.0V
Q205
48.0V
Q207 Q206
48.0V
R233 D207
30.0V 30.0V
5.6K
12.0V
0V
0V
OVERLOAD
DETECTOR
Q231
0V
R227
D211
15K
D217
R228
D212
15K
D208
0V
12.0V
Q208
0V
VEE CONTROL
POWER SUPPLY
D206
-30.0V
-48.0V
Q211
-48.0V
Q209
-48.0V
D218
Q210
B
D221
R299
5.6K
0V
0V
Q234
Q235
0V
R306 Q236
0V
2.2K 0V
48.0V
Q237
0V
0V
+B
Q238
HIGH FREQUENCY 0V
-48.0V
LEVEL DETECTOR
+B
B
B
+B
+B
C266
JK203
0.01
L
FRONT
SPEAKERS
R
JK204
EX-BASS
CANCEL DRIVER
S201 L
ON
R364 R366
1 4
D232
47K 10K
SURROUND
2 5
SPEAKERS
0V 3
R
6
OFF
Q223,245,258,404,408,410 D1,2,202,205,208,209,
: DTA114YSA 211-213,217-219,221,
Q229,243 : 2SA1837 227,228,232-235 : 1N4148
Q239,244,253,256 D201,203,204,210 : 1N4004
: KTA1266(Y) D206,207,229 : MTZ5.1J(B)
Q240,241,251,254,257 D222-225 : 1N5402
: KTC3198Y D226 : MTZ13J(C)
Q259,403,409 : DTC114YSA
Q401 : KTA1266(Y)