MICROPHONE / KEYPAD MICROPHONE
KMC-35/36
SERVICE MANUAL
© 2004-7 PRINTED IN JAPAN
( )
B51-8697-00 N 1309
KMC-35
Lever knob (PTT)
(K29-9333-08)
Curl cable
(E30-7531-08)
KMC-36
Lever knob (PTT)
(K29-9333-08)
Curl cable
(E30-7531-08)
Key top
(K29-9335-08)
PARTS LIST
KMC-35 (Y58-3740-20), KMC-36 (Y58-3750-20)
✽ : New parts
New
Ref. No.
Parts No.
Description
CURL CABLE
Destination
parts
1
2
✽
E30-7531-08
E58-0475-05
MODULAR JACK
3
4
✽
✽
G01-4546-08
G53-1646-08
COIL SPRING (PTT)
PACKING
5
6
✽
✽
J19-5479-08
J19-5482-05
MIC HOLDER
MIC HANGER (ACCESSORY)
7
8
9
✽
✽
✽
K29-9333-08
K29-9334-08
K29-9335-08
LEVER KNOB (PTT)
KNOB (PTT)
KEY TOP
KMC-36
A
N52-3012-60
S70-0499-08
T91-0538-05
PAN HEAD TAPPING SCREW
TACT SWITCH
10
11
✽
MIC ELEMENT
KMC-35/36
CIRCUIT DESCRIPTION
■ Circuit description
Hot microphone operation can be performed by cutting
the jumper (JP1).
If the jumper is not cut (Normal microphone state), bias
voltage is always applied to the microphone element (Q3 is
always ON) and if the microphone mute of the transceiver to
which the KMC-35/36 is connected is released, modulation
signals can be sent even when the microphone PTT switch is
not pressed.
Hot Microphone Function
In the Hot microphone state, only microphones whose
PTT switch is pressed can send modulation signals in the
environment in which several microphones are connected to
the transceiver in parallel.
In the Normal microphone state, if the PTT switch on one
of the microphones is pressed, modulation signals are sent
from all microphones.
If the jumper is cut (Hot microphone state), bias voltage is
applied to the microphone element only when the PTT switch
is pressed (Q3 turns ON only when the PTT SW is pressed),
and modulation signals cannot be sent when the microphone
PTT switch is not pressed.
5V
Q1
DTC114EUA
R1 10k
Q3
Q2
DTA144EUA
DTC144EUA
J1
*L1
1 BLC
L2
L3
2 SB
0
R6
3 GND
L4
4
5
6
PTT
C7
L5
ME(MIC GND)
MIC
1u 16
C9
10u 16
L6
L7
7 HK(HOOK)
R8
1k
MIC
*L8
8
DM
E58-0475-05
T91-0538-05
3
KMC-35/36
EXPLODED VIEW
KMC-35
KMC-36
8 Knob (PTT)
(K29-9334-08)
8 Knob (PTT)
(K29-9334-08)
3 Coil spring (PTT)
(G01-4546-08)
3 Coil spring (PTT)
(G01-4546-08)
5 MIC holder
(J19-5479-08)
5 MIC holder
(J19-5479-08)
700 Spacer
700 Spacer
7 Lever knob (PTT)
(K29-9333-08)
7 Lever knob (PTT)
(K29-9333-08)
9 Key top
(K29-9335-08)
11 MIC element
(T91-0538-05)
10 Tact switch
(S70-0499-08)
2 Modular jack
(E58-0475-05)
4 Packing
(G53-1646-08)
1 Curl cable
(E30-7531-08)
6 MIC hanger
(J19-5482-05)
701 Model name plate
A
A
A
A
M3 x 12 : N52-3012-60
A
Parts with the exploded numbers larger than 700 are not supplied.
4
A
B
C
D
E
SCHEMATIC DIAGRAM KMC-35/36
1
2
3
4
5
6
7
1 k
* R 2 7
2 2 k * R 3 3
1 0 0 0 p * C 2 2
3 3 k * R 2 8
1 0 0 0 p * C 2 1
0
* R 4 4
1 0 k
* R 4 0
4 7 k
* R 4 2
1 S S 1 8 4
* D 2 5
2 2 0 k
* R 2 6
1 0 k
0
* R 4 3
* R 3 2
* C 2 5
1 0 0 p
L 9
1 0 k R 5
3 . 9 k R 4
3 . 9 k R 7
4 7 0 p
C 1 1
J P 1
1 0 k R 3
P T T S W
0 . 0 6 8 u
C 1 0
S 1
1 0 k R 2
S 7 0 - 0 4 9 9 - 0 8
1 . 5 k
R 9
1 0 0 0 C p 6
1 0 0 0 C p 4
0 . 1 u C 3
1 0 0 0 p C 2 0
C O M
0
R 1 0
0 . 1 u C 2
1 0 0 0 C p 1
* C 1 9
1 0 0 0 p C 1 4
1 0 0 0 p C 1 8
1 0 0 0 p C 1 3
1 0 0 p C 1 7
1 0 0 0 p C 1 2
* C 1 6
* C 1 5
* C 5
5
KMC-35/36
SPECIFICATIONS
Voltage Required....................................... 13.6V 15%
Operating Temperature Range.................. –30°C~+60°C
Microphone Sensitivity.............................. –46dB 6dB at 1kHz (0dB=1V/Pa)
Impedance ................................................ 1kΩ 30% at 1kHz
Current Drain............................................. Less than 20mA (KMC-35)
Less than 100mA (KMC-36)
KENWOOD CORPORATION
2967-3, Ishikawa-machi, Hachioji-shi, Tokyo, 192-8525 Japan
KENWOOD U.S.A. CORPORATION
P.O. BOX 22745, 2201 East Dominguez Street, Long Beach, CA 90801-5745, U.S.A.
KENWOOD ELECTRONICS CANADA INC.
6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8
KENWOOD ELECTRONICS DEUTSCHLAND GMBH
Rembrücker Str. 15, 63150 Heusenstamm, Germany
KENWOOD ELECTRONICS BELGIUM N.V.
Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium
KENWOOD ELECTRONICS FRANCE S.A.
13, Boulevard Ney, 75018 Paris, France
KENWOOD ELECTRONICS U.K. LIMITED
KENWOOD House, Dwight Road, Watford, Herts., WD18 9EB United Kingdom
KENWOOD ELECTRONICS EUROPE B.V.
Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands
KENWOOD ELECTRONICS ITALIA S.p.A.
Via G. Sirtori, 7/9 20129 Milano, Italy
KENWOOD IBERICA S.A.
Bolivia, 239-08020 Barcelona, Spain
KENWOOD ELECTRONICS AUSTRALIA PTY. LTD.
(A.C.N. 001 499 074)
16 Giffnock Avenue, Centrecourt Estate, North Ryde, N.S.W. 2113 Australia
KENWOOD ELECTRONICS (HONG KONG) LTD.
Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road, Kwai Fong, N.T., Hong Kong
KENWOOD ELECTRONICS SINGAPORE PTE LTD.
1 Genting Lane #07-00 Kenwood Building, Singapore 349544
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