Sony Electret ECM-Z37C Manual de usuario

ECM-Z37C

SERVICE MANUAL

General

Type Electret condenser microphone

Microphone cord 1.5 mm dia. single core-shielded, OFC (Oxygen-free copper)

cord with the gold-plated L-shaped miniplug

Length: Approx. 30 cm (11 7/8 inches)

Dimensions Approx. 46 ×122 ×36.5 mm (W ×H ×D)

(1 13/16 ×4 7/8 ×1 7/16 inches) (without the projecting parts)

Mass Approx. 44 g (1 lb 6 oz) including battery and cord

Supplied accessories Wind screen (1)

Extension arm (1)

Carrying case (1)

Performance

Frequency response 100 - 10,000 Hz

Output impedance 2.2 kilohm ± 30 %

Sensitivity Open circuit output level*1: – 41 ± 3.5 dB (8.9 mV)

Power requirements Lithium battery CR2025

Continuous lasting hours: Approx. 300 hours

Plug-in power

Maximum input sound pressure level*2

More than 105 dBSPL

Dynamic range More than 79 dB

Operating temperature range

0°C to 40°C (32°F to 104°F)

*10 dB = 1 v/Pa, 1,000 Hz (1 Pa = 10 µbar = 94 dBSPL)

*24 % wave distortion is present at 1,000 Hz

(0 dBSPL = 2 ×10-5 Pa)

Design and specifications are subject to change without notice.

SPECIFICATIONS

US Model

Canadian Model

AEP Model

E Model

Ver 1.0 2001. 01

ELECTRET CONDENSER MICROPHONE

Ver 1.0 2001. 02

Sony Corporation

Audio Entertainment Group

General Engineering Dept.

9-927-983-11

2001B0400-1

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.

ECM-Z37C SECTION 1

GENERAL This section is extracted

from instruction manual.

ECM-Z37C

SECTION 2

DISASSEMBLY

Note : Follow the disassembly procedure in the numerical order given.

2-1. CASE, UPPER

OFF

6grille assy, front

0case, lower

8B 1.7 x 7

4P 1.4 x 2.5

7lid battery case

9case, upper

2PTPWH 2 x 4

1cap, switch

3knob, switch

5cap, rear

claws

knob, switch cap, switch

Section view

Note for installing the “cap, switch” :

Fit the claws.

claws

Push and

remove.

Section view

Spread and remove.

lid battery case

Note for installing the “knob, switch” :

Position the switch knob with the AMP board switch (SW1)

as shown below.

2-2. MICROPHONE UNIT, AMP BOARD

LED

1microphone unit

Note for installing the microphone unit:

Arrange the lead wires not to be put on the LED

on the AMP board.

microphone unit

switch (SW1)

Note for installing the AMP board:

Push the AMP board switch (SW1) down to position

the board with the switch knob.

3P 1.4 x 2.5

4AMP board

2Unsolder the

lead wires.

5Unsolder the

lead wires.

Note: Pay attention to drop of the compression

spring and stainless hall when removing

the AMP board.

ECM-Z37C SECTION 3

DIAGRAMS

3-1. SCHEMATIC DIAGRAM

2.9

2.4

2.9

Note:

• 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.

•A: B+ Line.

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

supply from battery terminal.

• Voltage is dc with respect to ground under no-signal

conditions.

• Signal path.

F: MIC

ECM-Z37C

3-2. PRINTEDWIRING BOARD

R4 R5

RED

BLK

D3 SW1

(POWER)

OFF

-1 -2

BLU

MINI PLUG

(MIC OUT)

FET1 MIC1

MIC UNIT

(CHASSIS)

TO TOP GRILLE

1-679-162- 11

(11)

R1 C1

LITHIUM

BATTERY

CR-2025

AMP BOARD (COMPONENT SIDE)

2345678

Note:

•X: parts extracted from the component side.

•Y: parts extracted from the conductor side.

•z: Through hole.

•: Pattern from the side which enables seeing.

•: Pattern of the rear side.

D1 C-6

D2 C-6

D3 A-7

D4 B-7

• Semiconductor

Location

Ref.No. Location

ECM-Z37C SECTION 4

EXPLODEDVIEWS

Ref. No. Part No. Description Remark

4-1. MAIN SECTION

Ref. No. Part No. Description Remark

*1 1-679-162-11 AMP BOARD

2 3-686-420-01 SCREW (P1.4X2.5), TAPPING

3 3-222-905-01 CAP, SWITCH

4 3-222-904-01 KNOB, SWITCH

5 3-222-910-01 SPRING, SWITCH

6 3-222-903-01 CAP, REAR

7 3-222-901-01 LID, BATTERY CASE

8 3-222-907-01 HINGE

9 3-222-899-01 CASE, UPPER

10 3-222-909-01 GRILLE, TOP

11 3-222-913-01 SCREEN, TOP

*12 3-387-142-01 CUSHION (BUTTON)

13 1-418-258-11 MICROPHONE UNIT (including MIC1 and FET1)

14 X-3379-570-1 GRILLE ASSY, FRONT

15 3-222-912-01 SCREEN, FRONT

16 3-222-900-01 CASE, LOWER

17 1-757-041-11 CORD, MICROPHONE

18 3-307-259-11 SPACER (2.6X3.5)

19 3-222-911-01 BRACKET, SHOE

20 X-3379-656-1 HOLDER ASSY, SHOE

21 3-318-203-81 SCREW (B1.7X7), TAPPING

22 3-222-915-01 CUSHION (A)

23 3-302-492-00 SPRING, COMPRESSION

24 3-222-906-01 WINDOW, LED

25 1-550-104-11 HOLDER, BATTERY

26 3-222-914-01 SCREEN, BOTTOM

27 3-313-392-01 SCREW (2X4), + PTPWH

28 7-671-112-11 BALL, STAINLESS (DIA.2.5)

29 7-682-902-11 SCREW +PWH 2.6X5

30 7-627-454-08 SCREW, PRECISION +K 2.6X3.5

31 3-223-917-01 CUSHION (B)

R9 1-249-385-11 CARBON 2.2 5% 1/4W

NOTE:

• The mechanical parts with no reference

number in the exploded views are not supplied.

• Items marked “*” are not stocked since

they are seldom required for routine service.

Some delay should be anticipated

when ordering these items.

• Color Indication of Appearance Parts

Example :

KNOB, BALANCE (WHITE) ... (RED)

Parts Color Cabinet’s Color

• Accessories and packing materials are

given in the last of this parts list.

2R9

13 26 14 15

16 18

ECM-Z37C

4-2. ARM SECTION

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

51 A-4540-573-A ARM ASSY (EXTENSION ARM)

52 2-509-712-21 SCREW

53 7-621-284-20 SCREW +P 2.6X6

54 2-545-662-01 O RING (P20)

55 A-4521-030-A HOLDER ASSY, SHOE

not

supplied

not

supplied

not

supplied

ECM-Z37C SECTION 5

ELECTRICAL PARTS LIST

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

• 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..

Ref. No. Part No. Description Remark

*1-679-162-11 AMP BOARD

***********

1-550-104-11 HOLDER, BATTERY

< CAPACITOR >

C1 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V

C2 1-110-563-11 CERAMIC CHIP 0.068uF 10% 16V

C3 1-110-563-11 CERAMIC CHIP 0.068uF 10% 16V

C4 1-125-839-11 TANTAL. CHIP 47uF 20% 6.3V

C5 1-125-839-11 TANTAL. CHIP 47uF 20% 6.3V

C6 1-127-760-11 CERAMIC CHIP 4.7uF 10% 6.3V

< DIODE >

D1 8-719-976-96 DIODE DTZ4.7C

D2 8-719-049-09 DIODE 1SS367-T3SONY

D3 8-719-072-95 DIODE 015AZ3.9-X-TPL3

D4 8-719-052-72 LED CL-220HR-C (ON)

< RESISTOR >

R1 1-216-827-11 METAL CHIP 3.3K 5% 1/16W

R2 1-216-833-11 METAL CHIP 10K 5% 1/16W

R3 1-216-827-11 METAL CHIP 3.3K 5% 1/16W

R4 1-216-813-11 METAL CHIP 220 5% 1/16W

R5 1-216-833-11 METAL CHIP 10K 5% 1/16W

< SWITCH >

SW1 1-786-043-21 SWITCH, SLIDE (POWER)

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

MISCELLANEOUS

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

13 1-418-258-11 MICROPHONE UNIT (including MIC1 and FET1)

17 1-757-041-11 CORD, MICROPHONE

R9 1-249-385-11 CARBON 2.2 5% 1/4W

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

ACCESSORIES & PACKING MATERIALS

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

3-222-848-01 SCREEN, WINDOW

3-229-587-11 MANUAL, INSTRUCTION (ENGLISH,FRENCH,

SPANISH)

3-229-587-21 MANUAL, INSTRUCTION (GERMAN,ITALIAN,

PORTUGUESE) (AEP)

3-926-629-02 PORCH, CARRYING

AMP

ECM-Z37C

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. Date Description of Revision

1.0 2001. 02 New

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