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C-357

SECTION 3

DIAGRAMS

3-1. PRINTED WIRING BOARD

— 5 —

3-2. SCHAMITIC DIAGRAM

— 6 —

Note on Printed Wiring Board:

X

: parts extracted from the component side.

®

: Through hole.

b

: Pattern from the side which enables seeing.

Caution:
Pattern face side:

Parts on the pattern face side seen from

(Side B)

the pattern face are indicated.

Parts face side:

Parts on the parts face side seen from

(Side A)

the parts face are indicated.

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 

 and 

1

/

4

 

W or less unless otherwise

specified.

%

: indicates tolerance.

C

: panel designation.

U

: B+ Line.

• Power voltage is dc 1.5 V and fed with regulated dc power

supply from battery terminal.

• Voltages and waveforms are dc with respect to ground

under no-signal (detuned) conditions.

• Voltages are taken with a VOM (Input impedance 10 M

).

Voltage variations may be noted due to normal produc-
tion tolerances.

• Waveforms are taken with a oscilloscope.

Voltage variations may be noted due to normal produc-
tion tolerances.

• Circled numbers refer to waveforms.
• Signal path.

F

: MIC

Ref. No.

Location

D1

F-3

D2

I-3

D3

H-3

D4

B-3

D5

B-3

D6

G-3

D7

G-2

IC1

G-2

Q1

B-5

Q2

C-3

Q3

I-3

• Semiconductor

Location

1

 

D6  ANODE

5

µ

sec/div

20V/div

 Waveform

MIC1

•TOTAL CURRENT

   7 mA

CAPSULE

DRY BATTERY

SIZE"AA"

(IEC DESIGNATION R6)

1PCS,1.5V

CL-220HR-C

BATTERY CHECK

INDICATOR

(

)

POWER/LOW-CUT

D-D CONV.

R24

100K

R25
47K

POWER/LOW-CUT

H

H

TYPE

8

(DIRECTIVITY)

UNI

OMNI

C16

0.0012

19.6

999.99M

999.99M

46.4

24.0

0

0

0

0dB

-10dB

AMP BOARD

   

(SIDE B)

AMP BOARD

   (SIDE A)

1-671-801-

12

1-671-801-

12

DRY BATTERY

SIZE"AA"

(IEC DESIGNATION R6)

1PCS,1.5V

T1

RED

RED

WHT

PUL

YEL

YEL

YEL

BRN

BRN

BLU

GRN

BLU

BLK

WHT

R3

D5

D5

D4

R5

R9

R25

R24

C16

C13

R4

C

E

B

R10
R8

R7

R19

Q2

C6

C5

C4

R18

R16

SW1

SW3

SW3

R6

R22

R23

R11

R17

D3

R14

R15

C9

C12

D1

C7

C14

IC1

D7

T2

R20

R21

D6

C10

C11

R13

L1

L2

D2

E

C

B

3

4

6

1

1

3

2

R12

Q3

C8

CN1

1

2

3

MIC1

CAPSULE

C3

C2

C1

C15

R1

R2

POWER

/LOW-CUT

BATTERY

CHECK

INDICATOR

Q1

M

V

OFF

SW2

–1

–2

S

  PAD

(DIRECTIVITY)

OMNI     UNI

2

5

  0dB

 -10dB

1

2

A

B

C

D

E

F

G

H

I

J

3

4

5

6

7

16

Summary of Contents for C-357

Page 1: ...S SECTION 1 GENERAL 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 This section is extracted from instruction manual 2 CONDENSER MICROPHONE MICROFILM Ver 1 0 1999 02 ...

Page 2: ...ws K 2 5 6 Screw K 2 5 5 Chassis 4 Terminal ground 1 Two screws 2 Two screws 8 Sleeve connector Note To re attach it turn the PAD knob first in the direction of the arrow and attach it 2 2 CHASSIS SLEEVE CONNECTOR 3 6 Remove the two solderings and remove the harness 3 Remove soldering 8 AMP board 4 Terminal plus 2 Terminal minus 9 Transformer output 5 Remove three solderings and remove the three h...

Page 3: ...duc tion tolerances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion tolerances Circled numbers refer to waveforms Signal path F MIC Ref No Location D1 F 3 D2 I 3 D3 H 3 D4 B 3 D5 B 3 D6 G 3 D7 G 2 IC1 G 2 Q1 B 5 Q2 C 3 Q3 I 3 Semiconductor Location 1 D6 ANODE 5µsec div 20V div Waveform MIC1 TOTAL CURRENT 7 mA CAPSULE DRY BATTERY SIZE AA IEC DESIGNA...

Page 4: ...RY CHECK INDICATOR D6 8 719 820 41 DIODE 1SS302 D7 8 719 975 40 DIODE RB411D IC IC1 8 759 564 83 IC XC6371A701PR COIL L1 1 412 963 11 INDUCTOR 100uH L2 1 412 963 11 INDUCTOR 100uH TRANSISTOR Q1 8 729 203 02 TRANSISTOR 2SK30A O Q2 8 729 230 63 TRANSISTOR 2SC4116 YG Q3 8 729 230 63 TRANSISTOR 2SC4116 YG RESISTOR R1 1 215 065 00 METAL OXIDE 999 99M 20 1 8W R2 1 215 065 00 METAL OXIDE 999 99M 20 1 8W ...

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