KENWOOD KMC 36 User Manual

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 ................................................ 1k30% 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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