Power Amp-L Assy - Pioneer VSX-56TXi Service Manual

1

3.19 POWER AMP-L ASSY

W
POWER AMP-L ASSY (AWX7984)
A
CN4403
KM250MA3L
THERMISTER
3
AEX7014
2
1
B
+VH
CN4401
XKP3079
+VH
1
2
+VH
VHG
VHG 3
4
VHG
-VH 5
-VH
6
-VH
V+5V 7
8
TEMP
AMUTE 9
OL DET 10
DC DET 11
12
AGFL
(F)
FL 13
AGSL 14
C
SL 15
AGSBL 16
(SB)
SBL 17
KN4402
VNF1084
CHASSIS
Q4402
D
2SC2412K
Q4401
2SC2412K
AMPG
STBY
E
(F)
: AUDIO SIGNAL ROUTE (FRONT Lch)
(S)
: AUDIO SIGNAL ROUTE (SURROUND Lch)
(SB)
: AUDIO SIGNAL ROUTE (SURROUND BACK Lch)
(C)
: AUDIO SIGNAL ROUTE (CENTER ch)
F
W
62
1
2
R4101 C4101
(F)
10/50
1k
CEHAT
Q4101
R4102
10k
2SC3326(AB)
VHG
OL
(S)
R4201 C4201
1k 10/50
(S)
CEHAT
Q4201
R4202
10k
2SC3326(AB)
VHG
(SB)
R4301 C4301
1k 10/50
CEHAT
Q4301
R4302
10k
2SC3326(AB)
VHG
2
3
FL
R4103
(F)
1k
R4105
1.2K
IC4101,4201
IC4301
1.+IN
2.-IN
3.EFOUT+
AMPG
4.EFOUT-
5.+OUT
SL
6.-OUT
7.+VCC
8.-VCC
9.NC
10.TRIM
R4203
1k
R4205
1.2K
AMPG
SBL
R4303
1k
R4305
1.2K
AMPG
VSX-56TXi
3
4
+VH
R4110
56
7
(F)
1 10
3
5
IC4101
PA9009A
6
2 4
8
R4111
56
C4112 C4113
6p 6p
CH CH
-VH
R4112
+VH
33k
RN1/10SE
R4210
56
(S)
7
1 10
3
5
IC4201
PA9009A
6
2 4
8
R4211
56
C4212 C4213
6p 6p
-VH
CH CH
R4212
33k
+VH
RN1/10SE
R4310
56
7
(SB)
1 10
3
5
IC4301
PA9009A
6
2 4
8
R4311
56
C4312 C4313
6p 6p
-VH
CH CH
R4312
33k
RN1/10SE
4
(F)
(F)
(S)
(S)
(SB)
(SB)