Sony SRS-T55 Service Manual ▷ View online
2
SRS-T55
Specifications ........................................................................... 1
1. GENERAL
...................................................................... 2
2. DISASSEMBLY
2-1. Battery box ................................................................. 3
2-2. Speaker ....................................................................... 3
2-3. AMP board, DC Jack board ........................................ 4
2-2. Speaker ....................................................................... 3
2-3. AMP board, DC Jack board ........................................ 4
3. DIAGRAMS
3-1. Printed Wiring Boards ................................................ 5
3-2. Schematic Diagram ..................................................... 6
3-2. Schematic Diagram ..................................................... 6
6. EXPLODED VIEWS
.................................................... 7
7. ELECTRICAL PARTS LIST
..................................... 8
TABLE OF CONTENTS
SECTION 1
GENERAL
This section is extracted from
instruction manual.
instruction manual.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
LOCATION AND FUNCTION OF CONTROLS
3
SRS-T55
SECTION 2
DISASSEMBLY
2-1. BATTERY BOX
2-2. SPEAKER
• The equipment can be removed using the following procedure.
Note :
Remove Speaker (R) in the same way.
2
6
4
7
B
9
3 Screws (+ P2X6)
8 Screws (+2.6X6)
1 Screws (+ P2X5)
Cabinet (L), rear
Speaker
lead
lead
Cabinet (L), front
Bar, tension
Shaft (L), rotary
Speaker (L)
(SP1)
(SP1)
A
5 Remove the speaker
lead from groove of
"Cabinet (L), front".
On attaching, set it
as shown in the
figure.
"Cabinet (L), front".
On attaching, set it
as shown in the
figure.
While pushing claw in the arrow
A
A
direction, remove "Shaft (L),
rotary" by pushing it out in the
arrow B direction.
arrow B direction.
2
4
3
6
1
5 Screws (+ P2X6)
7 Remove soider
(four places)
5 Screws (+ P2X6)
Front section
Battery box
Lid, battery case
Set
Front section
Speaker
Battery box
AMP board, DC Jack board
Note : Follow the disassembly procedure in the numerical order given.
4
SRS-T55
2-3. AMP BOARD, DC JACK BOARD
5
2
3
1 Screws (+ P2X6)
Lid, battery case
Box (L), battery
AMP board
DC Jack board
Box (R), battery
Cord (with plug)
6 Remove solder
(two places)
4 Remove solder
(five places)
5
5
SRS-T55
12
(12)
1-679-480-
12
(12)
1-679-473-
12
(12)
1-679-473-
DC JACK BOARD (SIDE A)
AMP BOARD (SIDE A)
AMP BOARD (SIDE B)
DC JACK BOARD (SIDE B)
12
(12)
1-679-480-
BCE
Q2
BCE
Q1
R11
R9
R1
R5
R7
R3
R15
C21
C19
R16
R17
C20
C1
C103
R6
C25
R20
R18
C18
R10
R12
C2
-1
-3
-4
-2
C104
C101
C26
R4
C102
OFF/DIRECT
C24
R19
R2
V+
V+
GND
GND
R
L
G
R8
R14
C23
D1
D3
C13
C16
C15
C4
C3
C22
C5
C6
C14
C10
C17
+
-
C9
C7
C8
C12
C11
SP2
SPEAKER(R)
8
Ω
+
-
SP1
SPEAKER(L)
8
Ω
P1
(INPUT)
ON
r
S1
POWER
1
5
11
15
20
10
IC2
1
5
11
15
20
10
IC1
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION LR6)
4PCS, 6V
JK1
DC IN 6V
D2
POWER
2
3
4
5
6
7
8
9
1
B
C
D
E
F
G
A
3-1. PRINTED WIRING BOARDS
D1
D-7
D2
E-7
D3
E-8
IC1
F-9
IC2
D-9
Q1
B-6
Q2
C-5
Ref. No.
Location
z
Semiconductor
Location
SECTION 3
DIAGRAMS
Note:
• X : parts extracted from the component side.
•
• X : parts extracted from the component side.
•
z
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)