Sony ECM-TS125 Bedienungsanleitung

ECM-TS125

AEP Model

SERVICE MANUAL

ELECTRET CONDENSER MICROPHONE

MICROFILM

SPECIFICATIONS

SECTION 1

GENERAL This section is extracted

from instruction manual.

— 2 —

1. Check theareaofyourrepairforunsolderedor poorly-soldered

connections. Checkthe entire board surface for soldersplashes

and bridges.

2. Check the interboard wiring to ensure that no wires are

"pinched" or contact high-wattage resistors.

3. Look for unauthorized replacement parts, particularly

transistors, that were installed during a previous repair. Point

them out to the customer and recommend their replacement.

4. Look forpartswhich, through functioning, show obvious signs

of deterioration. Point them out to the customer and

recommend their replacement.

5. Check the B+ voltage to see it is at the values specified.

6. Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270˚C

during repairing.

• Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering

or unsoldering.

SAFETY CHECK-OUT

After correcting the original service problem, perform the following

safety checks before releasing the set to the customer.

Type Electret condenser microphone

Dimensions Microphone parts:

11 ×26 mm (diameter/length)(7/16 ×11/16 in.)

Battery box parts:

40 ×16.5 ×46 mm (w/h/d)

(15/8×21/32 ×113/16 in.)

Mass Microphone parts (including cord):

Approx. 15 g (0.53 oz.)

Battery box parts

(including lithium battery and cord):

Approx. 17 g (0.6 oz.)

Cord Microphone parts:

∅2.2 mm (3/32 in.)OFC litz cord (2 core shielded)

Length: approx. 1 m (393/8in.)

Battery box parts:

∅2.2 mm (3/32 in.)OFC litz cord (2 core shielded)

Length: approx. 0.3 m (117/8in.)

Supplied accessories

Battery box (1)

Holder clip (1)

Frequently response

100 – 16,000 Hz

Directivity Unidirectional ×2

Output impedance

3 kΩ±30%

Sensitivity Open circuit output voltage level -42 ±4dB

0 dB=1V/Pa, 1,000 Hz(1Pa=10µ bar=94 dBSPL)

Battery life Approx. 100 hours

(with Sony lithium battery CR2025(not supplied))

Maximum sound pressure input level

Approx. 110 dBSPL

1% wave distortion at 1,000 Hz

(0 dBSPL=2 ×10-5Pa)

Operating temperature range

0°C – 40°C (32°F – 104°F)

Design and specifications are subject to change without notice.

1POWER switch

2Battery check indicator

When you turn the power on, the battery check indicator lights up

momentarily. This is normal. The light tells you that the battery still

has life. When the battery becomes weak, the indicator lights

dimly or does not light at all.

3L-shaped stereo miniplug (gold plated)

4Battery box

You can clip the battery box to your tie, lapel or pocket.

5Microphone jack

6L-shaped stereo miniplug (gold plated)

7Battery compartment

8Microphone

9Holder clip

AInterlock the projection of the holder to the groove on the

microphone.

BThis microphone holder allows you to tilt the microphone 45°

backward or forward.

Ver 1.0 1999. 05

SECTION 2

DIAGRAMS

2-1. SCHEMATIC DIAGRAM

TOTAL CURRENT

MIC UNIT

CONNECT : 700uA

DISCONNECT : 460uA

LITHIUM BATTERY

(L CH)

(R CH)

R22

3.9K

R21

2.2M

R23

C22

0.01

2SC4116YG

MIC AMP

R24

C24

R12

2.2M

R13

C12

0.01

C14

2.3

0.5

1.0

2.3

0.5

1.0

3.9K

R11

2SC4116YG

MIC AMP

R14

2.9

MIC UNIT

2-2. PRINTEDWIRING BOARD

AMP BOARD

(SIDE B)

UNIT BOARD

(SIDE B)

UNIT BOARD

(SIDE A)

AMP BOARD

(SIDE A)

1-672-000-

(11)

1-672-000-

(11)

MIC IN

POWER

R13

R12

C14

C1 C2

C22

R24

R22

R14

R11

R21

R23

C12

C24

OFF

(MIC OUT) MINI

PLUG

LITHIUM

BATTERY

CR-2025

BATTERY

CHECK

LAMP

1-673-682-

(11)

D10

D20

MIC1

(L CH)

MINI PLUG

(MIC OUT)

MIC2

(R CH)

1-673-682-

(11)

MIC UNIT

34567

Note on Schematic Diagram:

• All capacitors are in µF unless otherwise noted. pF: µµF

50 WV or less are not indicated except for electrolytics

and tantalums.

• All resistors are in Ωand 1/4W or less unless otherwise

specified.

• % : indicates tolerance.

•C: panel designation.

•U: B+ Line.

• Power voltage is dc 3 V and fed with regulated dc power

supply from battery terminal.

Note on Printed Wiring Board:

•X: parts extracted from the component side.

•®: Through hole.

•b: Pattern of the rear side.

Caution:

Pattern face side: Partson the pattern facesideseen from

(Conductor B) the pattern face are indicated.

Parts face side: Parts on the parts face side seen from

(Component A) the parts face are indicated.

• Voltages and waveforms are dc with respect to ground

under no-signal (detuned) conditions.

• Voltages are taken with a VOM(Inputimpedance 10 MΩ).

Voltage variations may be noted due to normal produc-

tion tolerances.

• Signal path.

F: MIC

Ref. No. Location

D1 F-2

D2 F-3

D3 D-2

D6 H-3

D7 G-3

D10 B-3

D20 B-4

Q1 E-3

Q2 D-3

• Semiconductor

Location

— 3 — — 4 —

ECM-TS125

— 5 — — 6 —

SECTION 3

EXPLODED VIEW

NOTE:

• -XX, -X mean standardized parts, so they may

have some differences from the original one.

• Items marked “*” are not stocked since they

are seldom required for routine service. Some

delayshould beanticipated whenordering these

items.

• Themechanical parts with no reference number

in the exploded views are not supplied.

• Accessories and packing materials is given in

the last of this parts list.

3-1. BATTERY BOX SECTION

3-2. MAIN SECTION

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

not supplied

1 1-790-506-21 CORD,MICROPHONE (2 CORE)

2 2-545-592-01 BUSHING

4 X-2542-165-1 CASE(UPPER) ASSY, BATTERY

5 2-545-588-01 KNOB,SWITCH (POWER)

*6 A-4542-575-A AMP BOARD, COMPLETE

7 2-545-589-01 TERMINAL, PLUS

51 A-4540-182-A CLIP ASSY, HOLDER

52 X-2542-079-1 CLIP ASSY

53 3-704-197-12 SCREW (M1.4 ×2.0), LOCKING

54 3-309-597-31 SCREW (1.4), TAPPING,PRECISION

55 A-4540-570-A MICROPHONE ASSY, LAVALIER (MIC UNIT)

8 2-545-590-01 TERMINAL, MINUS

9 2-545-599-01 SHEET, BLIND

10 2-545-586-01 CASE(LOWER), BATTERY

11 2-545-587-01 HOLDER, BATTERY

12 2-545-668-01 LABEL, MODEL NUMBER

#1 7-685-103-19 SCREW +P 2 ×5 TYPE2 NON-SLIT

SECTION 4

ELECTRICAL PARTS LEST

NOTE:

• Due to standardization, replacements in the

parts list may be different from the parts

specifiedin the diagrams or the components

used on the set.

• -XX, -X mean standardized parts, so they

may have some difference from the original

one.

• Itemsmarked “*” are not stocked since they

are seldom required for routine service.

Some delay should be anticipated when

ordering these items.

• CAPACITORS:

uF: µF

• RESISTORS

All resistors are in ohms.

METAL: metal-film resistor

METAL OXIDE: Metal Oxide-film resistor

F: nonflammable

• COILS

uH: µH

• SEMICONDUCTORS

In each case, u: µ, for example:

uA...: µA... , uPA... , µPA... ,

uPB... , µPB... , uPC... , µPC... ,

uPD..., µPD...

When indicating parts by reference number,

please include the board name.

Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks

*A-4542-575-A AMP BOARD, COMPLETE

********************

< CAPACITOR >

C1 1-119-749-11 TANTAL. CHIP 33uF 20% 4V

C2 1-104-908-11 TANTAL. CHIP 47uF 20% 4V

C12 1-162-974-11 CERAMIC CHIP 0.01uF 50V

C14 1-164-346-11 CERAMIC CHIP 1uF 16V

C22 1-162-974-11 CERAMIC CHIP 0.01uF 50V

C24 1-164-346-11 CERAMIC CHIP 1uF 16V

< DIODE >

D1 8-719-072-95 DIODE 015AZ3.9-X-TPL3

D2 8-719-064-07 LEDSML-310LTT86 (BATTERY CHECK UNIT)

D3 8-719-056-29 DIODE 015AZ4.7-TPL3

D6 8-719-056-29 DIODE 015AZ4.7-TPL3

D7 8-719-056-29 DIODE 015AZ4.7-TPL3

< JACK >

J1 1-764-624-51 JACK(MIC IN)

< TRANSISTOR >

Q1 8-729-230-63 TRANSISTOR 2SC4116-YG

Q2 8-729-230-63 TRANSISTOR 2SC4116-YG

< RESISTOR >

R1 1-216-833-91 RES,CHIP 10K 5% 1/16W

R3 1-216-813-11 METAL CHIP 220 5% 1/16W

R11 1-218-706-11 METAL CHIP 3.9K 0.50% 1/16W

R12 1-216-861-11 METAL CHIP 2.2M 5% 1/16W

R13 1-218-703-11 METAL CHIP 3K 0.50% 1/16W

R14 1-218-703-11 METAL CHIP 3K 0.50% 1/16W

R21 1-218-706-11 METAL CHIP 3.9K 0.50% 1/16W

R22 1-216-861-11 METAL CHIP 2.2M 5% 1/16W

R23 1-218-703-11 METAL CHIP 3K 0.50% 1/16W

R24 1-218-703-11 METAL CHIP 3K 0.50% 1/16W

< SWITCH >

S1 1-692-397-21 SWITCH, SLIDE (POWER)

************************************************************

MISCELLANEOUS

*************

1 1-790-506-21 CORD, MICROPHONE (2 CORE)

************************************************************

ACCESSORIES & PACKING MATERIALS

*******************************

3-866-282-11 MANUAL, INSTRUCTION (ENGLISH)

A-4540-182-A CLIP ASSY, HOLDER

AMP

— 7 — — 8 —

ECM-TS125

Sony Corporation

Personal Audio Company 99E1639-1

Published by General Engineering Dept.

9-926-940-11

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