Onkyo A-9377 Service Manual
SERVICE MANUAL
SERVICE MANUAL
INTEGRATED AMPLIFIER
MODEL A-9377(B)/(S)
A-9377
Ref. No. 4140
062009
Black and Silver models
B CPP
S CPP
B CWT
S CWT
230 AC, 50Hz
230 AC, 50Hz
120/220-240V AC, 50/60Hz
120/220-240V AC, 50/60Hz
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
RC-748S
A-9377
EXPLODED VIEW
A39
Sxx
x 2 pcs.
A32
Sxx
x 2 pcs.<CWT>
x 2 pcs.
F202
Sxx
x 17 pcs.
U01-3<CWT>
F203<CWT>
U01-2
E02
<CWT>
F201
A33
Sxx
x 4 pcs.
(NSP)
A31
(NSP)
A27
Sxx
x 4 pcs.
A24
(T201)
A29
x 2 pcs.
A28
A35
A50
x 8 pcs.
Q737a
x 4 pcs.
Sxx
x 2 pcs.
Sxx
x 5 pcs.
<Note>
Sxx = NSP
Q738
P01a
A34
Q737
BD702
Q739
Sxx
x 3 pcs.
Sxx
x 4 pcs.
Sxx
x 2 pcs.
Q740
Sxx
x 2 pcs.
A20
Sxx
Sxx
x 4 pcs.
E01
x 2 pcs.
U02-3
A10
A09
U01-1
U02-5
Sxx
x 7 pcs.
U02-1
Sxx
x 2 pcs.
U02-2
A06
x 3 pcs.
A38
x 6 pcs.
A14
DF-Tape
Sxx
U02-4
Sxx
x 2 pcs.
A36
x 2 pcs.
A40
x 2 pcs.
A13
A37
A08
Sxx
x 5 pcs.
A07
DF-Tape
A18
A05
A02
E01
x 4 pcs.
A23
x 2 pcs.
A22
x 3 pcs.
A21
x 4 pcs.
A19
x 4 pcs.
Sxx
x 4 pcs.
A04
Sxx
x 3 pcs.
For SPEAKERS
and REC SELECTOR
A03
x 5 pcs.
A01
A41
x 2 pcs.
A-9377
A-9377
A
BLOCK DIAGRAM
1
2
BCDEFGH
3
4
5
A-9377
A
SCHEMATIC DIAGRAM-1
MAIN
1
2
BCDEFGH
0.22/50
3
4
5
A-9377
A
SCHEMATIC DIAGRAM-2
POWER
1
2
BCD
3
4
ST RLY
+7.6V(ST/BY)
P/D
GND
5
A-9377
A
SCHEMATIC DIAGRAM-3
FRONT
1
2
BCDEFGH
0.22/5.5
3
4
5
A-9377
WIRING VIEW
1
2
A
BCDEFGH
3
4
CWT Version
5
PACKING PROCEDURE
P09
P02
<L>
Top side
marking
T
O
P
TOP
Left side
marking
L
L
FRONT
P05
P04
P10
P11
x 2 pcs
P17
<CPP>
P16
<CPP>
A-9377
P12
P13
<CPP>
P14
<CPP>
P15
<CWT>
P18
<CWT>
Front side
marking
P01
Front side
A-9377
Front side
A-93
77
P05
T
O
P
R
P
O
T
R
NT
O
FR
Front side
marking
Right side
marking
P06-d
P02
<R>
Top side
marking
P07
A-9377
A-9377
A-9377
P06a-d
P07
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