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3-1. PRINTED WIRING BOARD
1
2
3
SW1
(DIRECTIVITY)
A
OMNI
UNI
YEL
AMP BOARD
BRN
MIC1
B
CAPSULE
BRN
D5
D4
R19
C
R4
B
Q2
E
R7
R10
R8
R18
D
C6
C5
R22
C4
SW3
PAD
E
SW3
0dB
R6
-10dB
F
C7
IC1
C14
3
1
2
G
D7
DRY BATTERY
6
SIZE"AA"
1
(IEC DESIGNATION R6)
1PCS,1.5V
5
2
3
4
T2
H
RED
L1
C10
CN1
R13
C11
1
2
L2
WHT
3
I
R12
D2
Q3
C
PUL
C8
B
J
1-671-801-
16
SECTION 3
DIAGRAMS
4
5
6
AMP BOARD
(SIDE A)
(SIDE B)
C3
C2
C1
Q1
D5
BATTERY
S
CHECK
R3
R2
INDICATOR
R5
POWER
/LOW-CUT
SW2
–1
–2
C
OFF
RED
YEL
BLU
GRN
BLK
WHT
T1
R21
R20
D6
E
1-671-801-
12
— 5 —
3-2. SCHAMITIC DIAGRAM
7
MIC1
CAPSULE
R1
19.6
•TOTAL CURRENT
7 mA
M
V
DRY BATTERY
SIZE"AA"
(IEC DESIGNATION R6)
1PCS,1.5V
• Waveform
5µsec/div
1
D6 ANODE
20V/div
Note on Printed Wiring Board:
• Semiconductor
• X : parts extracted from the component side.
Location
•
®
Ref. No. Location
• b : Pattern from the side which enables seeing.
D1
F-3
D2
I-3
Caution:
D3
H-3
Pattern face side:
D4
B-3
(Side B)
D5
B-3
Parts face side:
D6
G-3
(Side A)
D7
G-2
IC1
G-2
Q1
B-5
Q2
C-3
Q3
I-3
12
0
0
(DIRECTIVITY)
UNI
OMNI
C16
POWER/LOW-CUT
0.0012
R24
999.99M
100K
999.99M
R25
47K
24.0
46.4
D-D CONV.
POWER/LOW-CUT
CL-220HR-C
0dB
(
BATTERY CHECK
)
INDICATOR
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
: Through hole.
• All resistors are in Ω and
•
Parts on the pattern face side seen from
• C : panel designation.
the pattern face are indicated.
• U : B+ Line.
Parts on the parts face side seen from
• Power voltage is dc 1.5 V and fed with regulated dc power
the parts face are indicated.
• Voltages and waveforms are dc with respect to ground
• Voltages are taken with a VOM (Input impedance 10 MΩ).
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
— 6 —
C-357
8
0
H
TYPE
H
-10dB
50 WV or less are not indicated except for electrolytics
and tantalums.
1
/
W or less unless otherwise
4
specified.
%
: indicates tolerance.
supply from battery terminal.
under no-signal (detuned) conditions.
Voltage variations may be noted due to normal produc-
tion tolerances.
Voltage variations may be noted due to normal produc-
tion tolerances.
F
: MIC
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