Pioneer VSX-D814-K Service Manual page 19

5
PRE-AMP
IC110 (2/2)
uPC4570G2
(FL)
4
+
3
FL
1
Q321 -
8
2
2SC3326
R321 R327 *1
E
4.7k
C323 100p
B
CH
C
C
C324
4.7k 100p
B
CH
R322
E
R328 *1
Q322
2SC3326
6
8
-
7
FR
(FR)
5
+
4
IC110 (1/2)
OFF : -12.0v
uPC4570G2
ON : 4.3v
IC111 (2/2)
uPC4570G2
(SL)
4
+
3
SL
1
Q341 -
8
2
2SC3326
R341 R347
*1
E
4.7K
C343
100p
B
CH
C
C
C344
100p
4.7K
B
CH
R342
E
R348
*1
Q342
2SC3326
6
8
-
7
SR
(SR)
5
+
4
IC111 (1/2)
uPC4570G2
(1/2)
IC112
uPC4570G2
V-12
(C)
Q362
Q395
2SC3326
2SC3326
C
C
C364
R362
B
B
4.7k
E
E
C370
R376
2.2k 4.7/50
IC112 (2/2)
(SW)
uPC4570G2
(SB)
C384 IC115
4
+ uPC4570G2
3
10/50
SB
1
-
8
2
R392
*1
C386
100p
6
8
-
7
5
+
4
(2/2)
IC115
uPC4570G2
GNDA
5
6
A 3/3
GNDU
C325
47/25
V+12
GNDA
C326
47/50
V-12
GNDA
C345
47/25
V+12
GNDA
C346
47/25
V-12
GNDA
4
+
C365
3
C
1
47/25
-
8
2
*1
R363
C363 100p
CH
4700p
V+12
YB
*1
R372
6
8
-
NP
7 GNDA
SW
C366
5
+
4 4.7/25
V-12
GNDA
(1/2)
C388
SB
47/25
CH
*1
V+12
GNDA
V-12
GNDA
6
7
PREG
(FL)
(FR)
AMUTE
OLDT
DCDT
NECK
C392
GNDU
1000p
V+5U
BOARD_DET/6_OHM
V-12
STBY
GAV
FRONT, REAR
R327 R328 R363
R347 R348
GAIN(dB) R392
(Ohm)
(Ohm)
15K 14.1/24.1 8.2K
VSX-D814-K
7
8
TO AMP INPUT ASSY
R320
0
C320
1000p
YB
GNDA
YB
A 3/3
V+12
V+7
V-7
V-12
Center,SB SW
GAIN(dB) GAIN(dB)
R372
(Ohm)
19.3 15K 14.2/24.9
8
A
C
GNDA
GNDA
FL
GNDA
FR
B
GNDA
SL
GNDA
SR
GNDA
SB
A MUTE
ATT
BRD
DET/6 OHM
OLDT
DCDT
NECK
GNDU
C
GNDCH
D
E
F
A
2/3
19