Sony SRS-T88 Service Manual ▷ View online
9
9
SRS-T88
4-1. PRINTED WIRING BOARD
SP2
(R CH)
SP1
(L CH)
ON
OFF
10
1
20
11
10
1
20
11
POWER
VOLUME
DRY BATTERY
SIZE "AA"
(IEC DESGNATION LR6)
4PCS, 6.0V
12
(12)
12
(12)
12
(12)
12
(12)
12
(12)
C105
C106
IC1
IC2
1
2
A
B
C
D
3
4
DC
IN
STEREO
PLUG
(
(
(
(
E
E
Ref. No.
Location
D1
C-4
D2
C-1
IC1
D-4
IC2
D-3
Q1
C-3
Q2
C-2
• Semiconductor
Location
10
10
SRS-T88
4-2. SCHEMATIC DIAGRAMS
RV1(1/2)
RV1(2/2)
SW1(1/4)
SW1(2/4)
SW1(3/4)
SW1(4/4)
C9
C7
C10
C14
C12
C6
C11
R1
R2
C8
C16
C18
C19
C20
TP12
TP10
TP11
R3
C2
R4
R5
R6
R9
R10
R12
R13
R14
R15
R16
R17
C17
C15
TP15
TP16
TP17
J1
TP4
TP5
TP6
TP7
TP8
TP9
C23
C25
R8
R22
R7
R21
R11
C13
C24
C101
C1
IC1
Q1
C102
Q2
C104
IC2
D1
D2
C3
TP1
TP2
TP3
C22
C21
C4
C103
C5
10K
10K
16V
16V
16V
16V
4V
4V
4V
4.7k
4.7k
16V
6.3V
6.3V
16V
16V
GND
VCC+
JACK SW(GND)
220
220
1k
1k
220
220
2.2
1k
1k
1k
10k
10k
6.3V
6.3V
VCC
JACK SW(GND)
GND
L+
L-
R+
R-
B+
B-
10V
4.7k
4.7k
4.7k
4.7k
2.2
16V
TEA2025D-013TR
DTC144TKA-T146
DTC144TKA-T146
TEA2025D-013TR
1SS123-T1
UDZSTE-176.8B
50V
4V
16V
50V
4V
0.047
C106
C105
11
SRS-T88
• IC Block Diagram
IC1, IC2 TEA2025D-013TR (AMP board)
+
–
+
–
VCC
OUT 1
BOOT 1
GND
START
CIRCUIT
CIRCUIT
(THERMAL
PROTECT)
PROTECT)
GND
GND
GND
GND
BOOT 2
OUT 2
BRIDGE
GND
GND
GND
SVR
FEEDBACK
FEEDBACK
IN 1(+)
IN 2(+)
GND(Sub)
20
19
18
17
16
15
14
13
12
11
1
1
1
2
2
2
3
4
5
6
7
8
9
10
DECOUPLING
SECTION 5
EXPLODED VIEWS
NOTE:
•
-XX, -X mean standardized parts, so they may
have some differences from the original one.
have some differences from the original one.
•
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.
in the exploded views are not supplied.
12
SRS-T88
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
17
18
23
22
22
SP1
1
2
11
12
13
15
21
14
10
11
9
20
19
23
16
16
4
5
7
5
6
21
16
16
21
4
3
8
a
a
16
16
SP2
1
X-3384-186-1 CABINET ASSY, FRONT
2
X-3384-656-1 SUB ASSY, KNOB (VOLUME)
3
3-258-788-01 KNOB (POWER)
4
3-258-790-11 PIPE
5
3-259-725-01 JOINT
6
3-260-136-02 URETHANE, JOINT
7
3-258-790-01 PIPE
8
3-258-783-01 COVER, TOP
9
3-258-784-01 LID, BATTERY CASE
10
3-258-785-01 STAND
11
3-260-137-01 URETHANE, BATTERY
12
3-258-792-01 SPRING, PLUS BATTERY
13
3-046-629-01 SPRING (B), BATTERY RELAY
14
3-258-791-01 SPRING, MINUS BATTERY
15
1-827-763-21 CORD (WITH PLUG)
16
3-260-134-01 SHEET, PACKING
17
3-258-786-01 PLATE, BATTERY
* 18
A-4541-780-A AMP BOARD, COMPLETE
19
3-258-782-01 CABINET, REAR
20
3-046-628-01 SPRING (A), BATTERY RELAY
21
3-253-143-01 SCREW (B2.6), (+) P TAPPING
22
3-254-070-01 SCREW
23
3-260-135-02 URETHANE, PACKING
SP1
1-825-612-11 SPEAKER
SP2
1-825-612-11 SPEAKER
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