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SRS-T57
SERVICE MANUAL
Ver 1.0 2004.04
E Model Tourist Model
SPECIFICATIONS
Speaker section
Enclosure type Speaker system Impedance Rated input power Maximum input power Full range, Bass reflex, magnetically shielded 34 mm (diameter) 8 1W 2W
Amplifier section
Rated output Bass boost Input Input impedance 1W+1W (10% T.H.D., 1 kHz, 8 ) MEGA BASS Input cord a stereo-mini plug (50 cm) × 1 4.7 k (at 1 kHz)
General
Power Dimensions (w/h/d) Four R6 (size AA) batteries, DC 6 V (optional AC power adaptor) approx. 224 × 85 × 57 mm (8 7/8 × 3 3/8 × 2 1/4 inch) (during use) approx. 50 × 85 × 100 mm (2 × 3 3/8 × 4 inch) (folded) approx. 330 g (12 oz.) including batteries
Mass
Supplied accessories
Operating Instructions (1)
Design and specifications are subject to change without notice.
ACTIVE SPEAKER SYSTEM
9-877-807-01
2004D0278-1 © 2004.04
Sony Corporation
Personal Audio Company Published by Sony Engineering Corporation
SRS-T57
Notes on chip component replacement · Never reuse a disconnected chip component. · Notice that the minus side of a tantalum capacitor may be damaged by heat.
SECTION 1 GENERAL
LOCATING THE CONTROLS
This section is extracted from instruction manual.
Slide button Bouton coulissant Mando deslizable POWER indicator Témoin POWER Indicador POWER Left speaker Haut-parleur gauche Altavoz izquierdo POWER switch Interrupteur POWER Interruptor POWER Speaker cord Cordon de haut-parleur Cable de altavoz
Bass reflex duct Conduit bass-reflex Conducto de reflexión de graves
Right speaker Haut-parleur droit Altavoz derecho
2
SRS-T57 SECTION 2 DISASSEMBLY
· The equipment can be removed using the following procedure.
2-1. DISASSEMBLY FLOW
SET
2-2. BATTERY BOX (Page 3)
2-3. SPEAKER (Page 4)
2-4. AMP BOARD, DC JACK BOARD (Page 4)
Note: Follow the disassembly procedure in the numerical order given.
2-2. BATTERY BOX
lid, battery case
2 5 two screws (+ P2 × 6) 3 4 6
7 Remove soider (four places)
battery box
1
front section
5 two screws (+ P2 × 6)
3
SRS-T57
2-3. SPEAKER
Note: Remove Speaker (R) in the same way.
cabinet (L), rear
5 Remove the speaker lead from groove of "Cabinet (L), front". On attaching, set it as shown in the figure. 8 two screws (+2.6 × 6)
Speaker lead
3 four screws (+ P2 × 6)
speaker (L) (SP1)
B 9 4 A
6 While pushing claw in the arrow A direction, remove "Shaft (L), rotary" by pushing it out in the arrow B direction.
1 screw (+ P2 × 5) 2 7
bar, tension
shaft (L), rotary cabinet (L), front
2-4. AMP BOARD, DC JACK BOARD
9 lid, battery case 1 two screws (+ P2 × 6)
box (L), battery
7 cord (with plug) 2
DC Jack board
5
AMP board
3
8 box (R), battery 4 Remove solder (five places) 6 Remove solder (two places)
4
SRS-T57 SECTION 3 DIAGRAMS
3-1. PRINTED WIRING BOARDS
1 2 3 4 5 6 + 7 SP1 SPEAKER(L) 8 8 9
A
DC JACK BOARD (SIDE A)
AMP BOARD (SIDE A)
C3 C16
-
C23 C22
C9
C5
C13
C15
BCE
R11 R9
R14
B C11 C12 C8 C7
C4 C10 Q2 1-679-48012 (12) + P1 (INPUT) SP2 SPEAKER(R) 8 C6 C14
C
BCE
R10 R12
C17
R18
C18
JK1 DC IN 6V
Q1
1-679-473-
12 (12)
DC JACK BOARD (SIDE B)
D
AMP BOARD (SIDE B)
10 L GND GND 5 1 D1
R20
C25
R6
C2 C104 C101 -1 -3 S1 POWER ON r OFF/DIRECT D2 POWER C26
C21
R
R8
R15
R1
C102 C24
C19
R2
R4
IC2
D3
R16
G E V+ V+
11 10
15 5
20 1
R5
R19
R3
R7
C103
C1
-2
-4
IC1
R17 C20
F DRY BATTERY SIZE "AA" (IEC DESIGNATION LR6) 4PCS, 6V
1-679-480-
12 (12)
11
15
20 1-679-473-
12 (12)
Note: · X : parts extracted from the component side. · z : Through hole. · : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.)
· Semiconductor Location
Ref. No. D1 D2 D3 IC1 IC2 Q1 Q2 Location D-7 E-7 E-8 F-9 D-9 B-6 C-5
G
5
5
SRS-T57
3-2. SCHEMATIC DIAGRAM
· IC BLOCK DIAGRAM IC1, 2 TEA2025D-013TR
BOOT 1
S1-1 S1 POWER OFF/DIRECT ON
20
19
18
17 16 15 14
13 12
11
VCC FEEDBACK FEEDBACK
SPEAKER (L-CH)
IC1 TEA2025D-013TR
GND(SUB)
BOOT1
GND
IN1(+)
OUT1
GND
GND
GND
DECOUPLING +
BOOT2
GND
GND
GND
IN2(+)
OUT2
POWER AMP
BRIDGE
GND
SVR
1 BRIDGE
DRY BATTERY SIZE"AA" (IEC DESIGNATION LR6) 4PCS,6V
2 OUT 2
3 BOOT 2
4 5 6 7 GND GND GND GND
FEEDBACK IN2 (+)
S1-2 DC IN 6V
S1-3
+ GND GND VCC GND
SPEAKER (R-CH)
IC2 TEA2025D-013TR
BOOT2
GND
GND
GND
IN2(+)
OUT2
POWER AMP
FEEDBACK
BRIDGE
GND
FEEDBACK
SVR
GND(SUB)
GND
BOOT1
IN1(+)
OUT1
S1-4
For Schematic Diagrams. Note: · All capacitors are in µF unless otherwise noted. (p: pF) 50 WV or less are not indicated except for electrolytics and tantalums. · All resistors are in and 1/4 W or less unless otherwise specified. · C : panel designation. · A : B+ Line. · Power voltage is dc 6 V and fed with regulated dc power supply from external power voltage jack (JK1). · Voltages are dc with respect to ground under no-signal conditions. · Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. · Signal path. F : LINE INPUT
6
6
SVR
+
+
THERMAL PROTECT START CIRCUIT
8 9
10
GND (SUB)
FEEDBACK IN1 (+)
OUT 1
GND GND GND GND
VCC
SRS-T57 SECTION 4 EXPLODED VIEWS
NOTE: · -XX and -X mean standardized parts, so they may have some difference 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. · · The mechanical parts with no reference number in the exploded views are not supplied. Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE) . . . (RED) Parts Color Cabinet's Color
9
8
23
10 11
5
23
7 21 6 12 13 16
SP1
23 22 4 23 24
14 17
not supplied
18 20 3
22 23 19 23
2 23 25 1
SP2
Ref. No. 1 1 2 3 3 4 5 * 6 7 8 9 10 11 12
Part No. 3-222-473-11 3-222-473-21 3-222-484-02 3-222-472-11 3-222-472-21 3-222-476-01 3-222-474-11 A-4542-657-A 3-222-470-04 3-222-477-31 3-222-462-03 3-222-480-01 3-224-484-01 3-222-481-02
Description CABINET (R), FRONT (SILVER) CABINET (R), FRONT (BLUE) KNOB, POWER CABINET (L), FRONT (SILVER) CABINET (L), FRONT (BLUE) SHAFT (L), ROTARY CABINET (L), REAR AMP BOARD, COMPLETE BOX (L), BATTERY LID, BATTERY CASE LEVER, EJECT TERMINAL, RELAY TERMINAL (B), RELAY SPRING, RELAY
Remark
Ref. No. 13 14 16 17 18 19 20 21 22 23 24 25 SP1 SP2
Part No. 3-222-482-02 3-222-483-01 3-222-471-03 1-824-827-31 3-222-479-01 3-222-475-11 3-222-478-01 3-224-496-02 3-253-143-01 3-255-458-21 3-255-458-11 3-222-469-31 1-825-339-12 1-825-339-12
Description TERMINAL (MINUS), BATTERY TERMINAL (PLUS), BATTERY BOX (R), BATTERY CORD (WITH PLUG) BAR, TENSION CABINET (R), REAR SHAFT (R), ROTARY SCREW (1.7) SCREW (B2.6), (+) P TAPPING SCREW (DIA.2), TAPPING SCREW (DIA.2), TAPPING PANEL, FRONT SPEAKER (034F003) SPEAKER (034F003)
Remark
7
SRS-T57 AMP JACK SECTION 5 ELECTRICAL PARTS LIST
· · COILS uH: µH Items marked "*" are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. SEMICONDUCTORS In each case, u: µ, for example: uA. . : µA. . uPA. . : µPA. . uPB. . : µPB. . uPC. . : µPC. . uPD. . : µPD. . Accessories are given in the last of this parts list. Remark Ref. No. Part No. When indicating parts by reference number, please include the board name.
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. · -XX and -X mean standardized parts, so they 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 · CAPACITORS uF: µF Ref. No. * Part No. Description
·
·
Description < RESISTOR >
Remark
A-4542-657-A AMP BOARD, COMPLETE ******************** < CAPACITOR > C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 C26 C101 C102 C103 C104 1-115-467-11 1-115-467-11 1-126-188-11 1-126-188-11 1-128-397-21 1-128-397-21 1-126-209-11 1-126-209-11 1-128-397-21 1-128-397-21 1-126-209-11 1-126-209-11 1-128-397-21 1-128-397-21 1-126-393-11 1-124-779-00 1-124-779-00 1-125-837-91 1-125-837-91 1-125-837-91 1-125-837-91 1-126-935-11 1-107-726-91 1-165-176-11 1-165-176-11 1-162-964-11 1-162-964-11 1-162-964-11 1-162-964-11 1-162-964-11 CERAMIC CHIP CERAMIC CHIP ELECT CHIP ELECT CHIP ELECT CHIP ELECT CHIP ELECT CHIP ELECT CHIP ELECT CHIP ELECT CHIP ELECT CHIP ELECT CHIP ELECT CHIP ELECT CHIP ELECT CHIP ELECT CHIP ELECT CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP ELECT CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP < DIODE > D1 D2 D3 8-719-800-76 DIODE 1SS226 8-719-812-43 DIODE TLG124A 8-719-105-57 DIODE RD3.9M-B1 < IC > IC1 IC2 8-759-524-84 IC TEA2025D-013TR 8-759-524-84 IC TEA2025D-013TR < TRANSISTOR > Q1 Q2 8-729-230-49 TRANSISTOR 2SC2712-YG 8-729-230-49 TRANSISTOR 2SC2712-YG 0.22uF 0.22uF 0.15uF 0.15uF 100uF 100uF 100uF 100uF 100uF 100uF 100uF 100uF 100uF 100uF 33uF 10uF 10uF 1uF 1uF 1uF 1uF 470uF 0.01uF 0.047uF 0.047uF 0.001uF 0.001uF 0.001uF 0.001uF 0.001uF 10% 10% 20% 20% 20% 20% 20% 20% 20% 20% 20% 20% 20% 20% 20% 20% 20% 10% 10% 10% 10% 20% 10% 10% 10% 10% 10% 10% 10% 10% 10V 10V 50V 50V 16V 16V 4V 4V 16V 16V 4V 4V 16V 16V 10V 16V 16V 6.3V 6.3V 6.3V 6.3V 16V 16V 16V 16V 50V 50V 50V 50V 50V JK1 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R14 R15 R16 R17 R18 R19 R20 1-216-829-11 1-216-829-11 1-216-814-11 1-216-814-11 1-216-821-11 1-216-821-11 1-216-823-11 1-216-823-11 1-216-813-11 1-216-813-11 1-216-833-11 1-216-833-11 1-216-821-11 1-216-821-11 1-216-821-11 1-216-789-11 1-216-789-11 1-216-823-11 1-216-823-11
METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP < SWITCH >
4.7K 4.7K 270 270 1K 1K 1.5K 1.5K 220 220 10K 10K 1K 1K 1K 2.2 2.2 1.5K 1.5K
5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5%
1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W
S1 1-554-896-21 SWITCH, SLIDE (POWER) ************************************************************ JACK BOARD *********** < JACK > 1-568-907-21 JACK, DC (POLARITY UNIFIED TYPE) (DC IN 6V !) ************************************************************ MISCELLANEOUS *************** 17 1-824-827-31 CORD (WITH PLUG) SP1 1-825-339-12 SPEAKER (034F003) SP2 1-825-339-12 SPEAKER (034F003) ************************************************************ ACCESSORIES ************ 3-261-127-11 MANUAL, INSTRUCTION (ENGLISH, FRENCH, SPANISH)
8
SRS-T57
MEMO
9
SRS-T57
REVISION HISTORY
Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. 1.0 Date 2004.04 New Description of Revision