Sony SRS-A27 (serv.man2) Service Manual ▷ View online
5
SRS-A27
2-2. SCHEMATIC DIAGRAM
R5
S1(1/4)
R9
CL5
CL4
R6
C13
C11
C7
R2
C3
R4
S1(3/4)
S1(2/4)
S1(4/4)
R8
CL7
R7
C14
C17
C9
C8
C12
C10
C6
C4
R1
R3
C2
C1
IC2
SP1
P1
CL6
JK2
SP2
JK1
IC1
RV1(2/2)
C5
RV1(1/2)
C19
C18
C15
C16
D1
10k
2.2
10k
2.2
50V
50V
3.3
50V
50V
1000p
18k
1000p
820
2.2
10k
1000p
1000p
470
16V
16V
0.01
2.2
50V
50V
3.3
50V
1000p
3.3
50V
18k
820
1000p
1000p
LA4525
(L-CH)
(INPUT)
(R-CH)
LA4525
5k
3.3
50V
50V
5k
470
6.3V
470
6.3V
470
6.3V
470
6.3V
LE-204HD
S1
POWER
OFF/DIRECT
ON
L-CH
POWER AMP
RV1
VOLUME
POWER AMP
R-CH
POWER
DRY BATTERY
DC IN 9V
V
G
R OUT
V
G
SIZE"AA"
4PC. 6V
(IEC DESIGNATION R6)
Ver. 1.1
6
SRS-A27
SECTION 3
EXPLODED VIEWS
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
X-3382-474-1 CABINET (L), ASSY, FRONT
2
3-227-533-11 CABINET (L), REAR
3
3-046-628-01 SPRING (A), BATTERY RELAY
4
3-046-629-01 SPRING (B), BATTERY RELAY
5
1-559-891-31 CORD (WITH PLUG)
6
3-046-630-01 SPRING, MINUS BATTERY
7
3-246-232-01 SPRING, PLUS BATTERY
8
3-227-535-01 LID, BATTERY CASE
9
4-982-232-01 SHEET, BLIND
10
4-308-878-99 CUSHION
11
A-3062-306-A AMPLIFIER BOARD, COMPLETE
12
3-227-537-01 KNOB (VOLUME)
13
3-227-536-01 KNOB (POWER)
SP1
1-544-824-32 SPEAKER (057F019FC) (5.7cm)
#1
7-685-645-14 SCREW +BVTP 3X6 TYPE2 N-S
#2
7-685-135-14 SCREW +P 2.6X10 TYPE2 NON-SLIT
3-1.
OVERALL ASSY (L)
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
•
The mechanical parts with no reference
number in the exploded views are not supplied.
number in the exploded views are not supplied.
•
Accessories are given in the last of the
electrical parts list.
electrical parts list.
NOTE:
•
-XX and -X mean standardized parts, so they
may have some difference from the original
one.
may have some difference from the original
one.
•
Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color
Cabinet's Color
1
SP1
not supplied
#1
#2
#2
2
3
4
6
7
5
8
9
11
12
13
10
7
SRS-A27
3-2.
OVERALL ASSY (R)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
SP2
#1
#2
#2
52
53
51
X-3382-475-1 CABINET (R) ASSY, FRONT
52
3-227-534-01 CABINET (R), REAR
53
1-696-003-41 CORD (WITH PLUG)
SP2
1-544-824-32 SPEAKER (057F019FC) (5.7cm)
#1
7-685-645-14 SCREW +BVTP 3X6 TYPE2 N-S
#2
7-685-135-14 SCREW +P 2.6X10 TYPE2 NON-SLIT
8
SRS-A27
SECTION 4
ELECTRICAL PARTS LIST
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
A-3062-306-A AMPLIFIER BOARD, COMPLETE
**************************
< CAPACITOR >
C1
1-162-294-31 CERAMIC
0.001uF
10%
50V
C2
1-162-294-31 CERAMIC
0.001uF
10%
50V
C3
1-162-294-31 CERAMIC
0.001uF
10%
50V
C4
1-126-962-11 ELECT
3.3uF
20%
50V
C5
1-126-962-11 ELECT
3.3uF
20%
50V
C6
1-162-294-31 CERAMIC
0.001uF
10%
50V
C7
1-162-294-31 CERAMIC
0.001uF
10%
50V
C8
1-162-306-11 CERAMIC
0.01uF
20%
16V
C9
1-126-935-11 ELECT
470uF
20%
16V
C10
1-126-962-11 ELECT
3.3uF
20%
50V
C11
1-126-962-11 ELECT
3.3uF
20%
50V
C12
1-126-961-11 ELECT
2.2uF
20%
50V
C13
1-126-961-11 ELECT
2.2uF
20%
50V
C14
1-162-294-31 CERAMIC
0.001uF
10%
50V
C15
1-104-655-91 ELECT
470uF
20%
6.3V
C16
1-104-655-91 ELECT
470uF
20%
6.3V
C17
1-162-294-31 CERAMIC
0.001uF
10%
50V
C18
1-104-655-91 ELECT
470uF
20%
6.3V
C19
1-104-655-91 ELECT
470uF
20%
6.3V
< LED >
D1
8-719-812-41 LED TLR124 (POWER)
< IC >
IC1
8-759-366-92 IC LA4525-E
IC2
8-759-366-92 IC LA4525-E
< JACK >
JK1
1-566-822-51 JACK (R OUT)
JK2
1-569-966-21 JACK, DC (POLARITY UNIFIED TYPE) (DC IN 9V)
< RESISTOR >
R1
1-249-432-11 CARBON
18K
5%
1/4W
R2
1-249-432-11 CARBON
18K
5%
1/4W
R3
1-249-416-11 CARBON
820
5%
1/4W
R4
1-249-416-11 CARBON
820
5%
1/4W
R5
1-249-429-11 CARBON
10K
5%
1/4W
R6
1-249-429-11 CARBON
10K
5%
1/4W
R7
1-249-429-11 CARBON
10K
5%
1/4W
R8
1-249-385-11 CARBON
2.2
5%
1/4W
R9
1-249-385-11 CARBON
2.2
5%
1/4W
< VARIABLE RESISTOR >
RV1
1-227-368-12 RES, VAR, CARBON 5K/5K (VOLUME)
< SWITCH >
S1
1-692-040-21 SWITCH, PUSH (1 KEY) (POWER)
************************************************************
MISCELLANEOUS
**************
**************
5
1-559-891-31 CORD (WITH PLUG)
53
1-696-003-41 CORD (WITH PLUG)
SP1
1-544-824-32 SPEAKER (057F019FC) (5.7cm)
SP2
1-544-824-32 SPEAKER (057F019FC) (5.7cm)
************************************************************
ACCESSORIES
************
************
3-230-600-32 MANUAL, INSTRUCTION
(ENGLISH, FRENCH, GERMAN, SPANISH,
DUTCH, SWEDISH, ITALIAN, PORTUGUESE)
NOTE:
•
Due to standardization, replacements in the
parts list may be different from the parts
specified in the diagrams or the components
used on the set.
parts list may be different from the parts
specified in the diagrams or the components
used on the set.
•
-XX and -X mean standardized parts, so they
may have some difference from the original
one.
may have some difference from the original
one.
•
RESISTORS
All resistors are in ohms.
METAL: Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F: nonflammable
All resistors are in ohms.
METAL: Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F: nonflammable
•
Items marked “*” are not stocked since they
are seldom required for routine service.
Some delay should be anticipated when
ordering these items.
are seldom required for routine service.
Some delay should be anticipated when
ordering these items.
•
SEMICONDUCTORS
In each case, u:
In each case, u:
µ
, for example:
uA... :
µ
A...
uPA... :
µ
PA...
uPB... :
µ
PB...
uPC... :
µ
PC...
uPD... :
µ
PD...
•
CAPACITORS
uF:
uF:
µ
F
•
COILS
uH:
uH:
µ
H
AMPLIFIER
When indicating parts by reference
number, please include the board.
number, please include the board.
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