PRS-A900/XS/UC
26
1
2
3
4
1
2
4
C
D
F
A
B
E
10. SCHEMATIC DIAGRAM
10.1 AMP UNIT(GUIDE PAGE)
A-a
A
A-a
A-b
A-a
A-b
A-b
A-a
Large size
SCH diagram
Guide page
Detailed page
Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or
"ELECTRICAL PARTS LIST".
E1
E2
C2
VCC
Outo
RetO
Inv2
Non-I
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(1/2W)
(1/2W)
(1/2W)
(1/2W)
(1/2W)
(1/2W)
(1/2W)
(1/2W)
(1W)
(RN1/10W)
(RN1/10W)
(1W)
(1W)
(1W)
(1/4W)
(1/4W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(1/2W)
(1/2W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(1/10W)
(1/10W)
(1/10W)
(1/10W)
(1/4W)
(1/4W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(RN1/10W)
(1W)
(1W)
(1W)
(1W)
S901
CSH1042
1
2
3
4
5
6
7
8
9
10
11
12
UPC
IC
9
10
11
12
13
14
15
16
47/50
C618
100/35
C716
100/35
C715
TH601
TH602
TH603
TH604
R709
10
R710
10
LT1358CS8
IC201
1
2
3
4
5
LT1358CS8
IC401
1
2
3
4
LT1358CS8
IC301
1
2
3
4
LT1358CS8
IC101
1
2
3
4
R817
4R7K
D805
HZS16L(1)
R810
10
D806
HZS16L(1)
100/35
C815
100/35
C816
R816
4R7K
R809
10
R102
22K
R302
22K
R402
22K
R202
22K
R208
10K
R218
2R2K
R418
2R2K
R318
2R2K
R118
2R2K
R630
4R7K
R631
4R7K
R633
R634
R635
R636
R632
4R7K
R204
10K
R404
10K
R407
10K
R405
10K
R304
10K
R104
10K
R307
10K
R107
10K
R105
10K
C101
470P
C301
470P
C401
470P
C201
470P
C404
33P
C104
33P
R803
4R7K
R804
4R7K
R703
4R7K
R704
4R7K
C204
33P
R205
10K
R305
10K
C304
33P
470/50
C811
470/50
C812
470/50
C711
470/50
C712
D701
FCH10A15
D702
FRH10A15
D802
FRH10A15
D801
FCH10A15
10/50
C202
10/50
C402
10/50
C302
10/50
C102
C207
33P
C407
33P
C307
33P
C107
33P
47/25
C821
47/25
C822
10/50
C817
10/50
C818
Q801
2SD1862
Q802
2SD1862
Q701
2SD1862
Q702
2SD1862
2SB1240
Q703
2SB1240
Q704
2SB1240
Q803
2SB1240
Q804
C819
R01
C820
R01
FKV550N
Q705
FKV550N
Q707
FKV550N
Q708
FKV550N
Q706
FKV550N
Q807
FKV550N
Q805
FKV550N
Q808
FKV550N
Q806
R207
10K
2R
C
R219
2R2K
R419
2R2K
R319
2R2K
R119
2R2K
Q709
2SC4883
2SA1859
Q810
CN101
1
2
3
4
5
6
7
8
R108
10K
R308
10K
R408
10K
C309
R01
C306
R01
C206
R01
C209
R01
GND
C406
R01
C409
R01
C106
R01
C109
R01
R301
470
R101
470
R201
470
C701
4700P
C702
4700P
C801
4700P
C802
4700P
D
DA
D
DA
R701
3R3K
R702
3R3K
R801
3R3K
R802
3R3K
L701
L702
L801
L802
D803
RF101L2S
D704
RF101L2S
D804
RF101L2S
D703
RF101L2S
R805
82
R807
82
R808
82
R806
82
6800/16
C803
6800/16
C703
R707
82
R708
82
R706
82
R705
82
C641
R1
C642
R1
C643
R1
C644
R01
R221
100
R421
100
R321
100
R121
100
T701
1
2
3
4
5
6
7
8
T801
1
2
3
4
5
6
7
8
R740
10
R840
10
4700/35
C707
4700/35
C708
4700/35
C807
4700/35
C808
R713
10
R712
10
R813
10
R812
10
R401
470
TP104
TP105
TP106
TP107
DDGNL
DDGNR
DD1LP
M
L
1
D
D
P
R
1
D
D
DD1RM
LP31V
LM31V
RP31V
RM31V
LP33V
RP33V
LM33V
RM33V
LP15V
RM15V
BRI
BRGND
BLI
BLGND
ARI
ARGND
ALI
ALGND
ALVOL
ARVOL
BLVOL
BRVOL
LGND
RGND
C203
4700P
C403
4700P
C303
4700P
C103
4700P
TP201
TP204
TP206
TP207
22/16
C208
22/16
C205
22/16
C405
22/16
C408
22/16
C308
22/16
C305
22/16
C108
22/16
C105
R715
10
R714
10
R815
10
R814
10
CCW1030
VR201
1 3
2
CCW1030
VR401
1
3
2
CCW1030
VR301
1 3
2
CCW1030
VR101
1
3
2
R1061R5K
R306
R406
R2061R5K
R203
3R3K
R403
3R3K
R303
3R3K
R103
3R3K
RCA Input
A Right
B Right
A Left
B Left
AL
BL
BR
AR
ISO GND(AR)
2CH
ISOLATOR
-VCC
+V
+IN_B
+IN_A
-IN_B
-IN_A
OUT_B
OUT_A
-IN_B
+IN_B
+V
-IN_A
OUT_A
-VCC
+IN_A
OUT_B
-IN_B
+IN_B
+V
-IN_A
OUT_A
-VCC
+IN_A
OUT_B
-IN_B
+IN_B
+V
-IN_A
OUT_A
-VCC
+IN_A
OUT_B
GND
GND
GND
GND
AVF
20K(A)
GAIN
ISO GND(BR)
ISO GND(BL)
ISO GND(AL)
VOLUME
BR
BL
AR
AL
BR(GND)
BL(GND)
AR(GND)
AL(GND)
B.U
(+33V)
+VHR
(-33V)
-VHR
(-31V)
-VLR
(+31V)
+VLL
+15VL
-15VR
+15VL
-15VL
-15VR
+15VR
20K(A)
20K(A)
20K(A)
+3.2dB
fosc=1/(0.817
4CH
6
7
8
5
6
7
8
5
6
7
8
5
6
7
8
1R5K
1R5K
2R7K
2R7K
2R7K
2R7K
(1/2W)
(1/2W)
320μH
320μH
320μH
320μH
AR INPUT LEVE
BR INPUT LEVE
BL INPUT LEVE
AL INPUT LEVE
INPUT SELECT
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TEL 13942296513
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299