Schematic Diagram; Amp Unit(Guide Page) - Pioneer PRS-A900 Service Manual

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10. SCHEMATIC DIAGRAM

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10.1 AMP UNIT(GUIDE PAGE)

A
Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or
"ELECTRICAL PARTS LIST".
Large size
SCH diagram
A-a A-b
A-a A-b
Guide page
Detailed page
A-a A-b
B
C
TE
L 13942296513
D
E
www
F
A
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A Right
B Right
CN101
BR 1
BRGND
BR(GND) 2
BL 3
BLGND
4
BL(GND)
AR 5
ARGND
AR(GND) 6
AL 7
ALGND
AL(GND) 8
B Left
A Left
+VLL (+31V)
Q709
LP15V TP201 R715 L701
2SC4883
+15VL
10
320μH
(1/2W)
GND
TP203 L702
R714
-15VL
Q710
LM15V 10 320μH
2SA1859 (1/2W)
-VLL (-31V) LP33V
R713 D703
+VHL (+33V)
10 (1/2W) RF101L2S
C711
470/50
C712
470/50
D704
-VHL (-33V) R712
RF101L2S
LM33V
10
(1/2W)
+VLR (+31V)
Q809
TP205 R815 L801
2SC4883
RP15V
+15VR
10 320μH
(1/2W)
GND
x ao
y
R814 L802
TP207
-15VR
Q810
10 320μH
RM15V
2SA1859
(1/2W)
-VLR (-31V)
RP33V R813 D803
10
+VHR (+33V) (1/2W) RF101L2S
. i
C811
470/50
C812
470/50
D804
-VHR (-33V) R812 RF101L2S
RM33V
10 (1/2W)
PRS-A900/XS/UC
2
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3
8
A-a
C202
R201
AR
470
10/50
(RN1/10W)
ISO GND(AR)
R204
10K
(RN1/10W)
R404
10K
(RN1/10W)
10/50
R401
BR
470
C402
(RN1/10W)
BRI
INPUT SELECT
BLI ISO GND(BR)
12 11 10 9 8 7
ARI
ALI
6 5 4 3 2 1
ISO GND(AL)
4CH
2CH
R301 C302
BL
470
10/50
(RN1/10W)
ISO GND(BL)
R304
10K
(RN1/10W)
Q Q
3 6 7
R104
10K
(RN1/10W)
10/50
R101
470
AL C102
(RN1/10W)
TP104
D701
FCH10A15
FKV550N
Q707
5
4
C703
DDGNL
6 3
GND
6800/16
7 2
8 1
T701
Q708
FKV550N
FRH10A15
D702
FKV550N
TP105
TP106
FKV550N
D801
FCH10A15
Q807
FKV550N
5
4
DDGNR
C803
6 3
GND
6800/16
7 2
8 1
T801
Q808
FKV550N
u163
FRH10A15
D802
Q806
FKV550N
TP107
3
4
2 9 9 4
+3.2dB
ISOLATOR
C208
R2061R5K
(RN1/10W)
22/16
C209
4 3 2 1
R01
C205
22/16
C206
R01
6 8
5 7
R207
10K
(RN1/10W)
C207
33P
C407
33P
R407
10K
(RN1/10W)
5 6 7 8
C406
R01
C405
22/16
C409
4 3 2 1 R01
R406 C408
1R5K
(RN1/10W)
22/16
C308
22/16
R306 1R5K
C309
(RN1/10W)
R01
4 3 2 1
C305
22/16
C306
R01
5 6 7 8
R307
10K (RN1/10W)
C307
1 3 1 5 0 5 8 2 9
33P
C107
33P
R107
10K (RN1/10W)
5 6 7 8
C109
R01
C108
22/16
C106
4 3 2 1
R01
R1061R5K C105
(RN1/10W)
22/16
B.U
Q705
FKV550N
R705
2SD1862
82 Q701
(1W)
R707
82
(1W)
Q703
2SB1240
2SB1240
Q704
R708
82
(1W)
Q702
R706
2SD1862
82 R740
(1W)
Q706
10
(1/4W)
Q805
R805
2SD1862
82 Q801
(1W)
R807
82
(1W)
Q803
2SB1240
2SB1240
Q804 m
R808
82
(1W)
R806 Q802
2SD1862
82
co R840
(1W)
10
(1/4W)
.
4
2 8
9 9
GAIN
VOLUME
R219
2R2K
(RN1/10W)
AR INPUT LEVE
RGND
BR INPUT LEVE
R419
2R2K
(RN1/10W)
R319
2R2K
(RN1/10W)
BL INPUT LEVE
9 4 2 8 9 9
LGND
AL INPUT LEVE
R119
2R2K
(RN1/10W)
fosc=1/(0.817
C643
R1 IC
UPC
C644
9
R01 E1
10
E2
11
C2
C618
47/50
12
VCC
R632 R630
13
Outo
14
4R7K 4R7K RetO
R631
15
Inv2
4R7K 16 Non-I
TH601
R633
C
2R7K
2R
TH602
R634
D
2R7K
TH603
R635
DA
D
2R7K
TH604 R636
DA
2R7K
GND