Kenwood KMC-18 User manual

DTMF MICROPHONE
KMC-18/18A
SERVICE MANUAL
PACKING
(G53-07;),,-uo
I·-~
KNOB
(K24-2004-0S)
CASE (FRONT)
(A02-1744-0S)
CASE (REAR)
(A02-1745-0S)
KEY TOP
(K29-4S56-0S)
KENWOOD
© 1993-2 PRINTED IN JAPAN
851822000(J)972
--------CONTENTS-------
INTRODUCTIOI\lS
~!~'CONDucTOIi.DATi:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::...................... 2
TS LIST ................. ...................... 3
~~~~~rE~;7::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: ~
TERMINAL FUNCTION ................................................................................. 8
SCHEMATIC DIAGRAM···············································......................................................................... 9
............... .................. 10
~~CC=1188A .......................................................................................................................
SPECIFICATIONS .... :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::·BACK··COV·~~

KMC-18/18A
2
INTRODUCTIONS
II\lTRODUCTIOI\lS --- KMC-18/18A (DTMF MICROPHONE)
The KMC-18/18A is a DTMF microphone for mobile transceivers with a 6-pin modular connector. The KMC-18 is
Q standard microphone, the KMC-18A, a multi-function one. They have the following features. (In the table
below, indicates that the function
is available, and indicates it is not .)
Feature KMC-18 KMC-18A
1 Conforms to MIL-STD-81- C/O/E. 0 0
Rain 506.1/Proce. 2, 506.2/Proce. 2, 506.3/Proce.2
Dust 510.1/Proce. 1,510.2/Proce. 1,510.3/Proce.1
Vibration514.21Proce. 8.10, 514.3/Proce.
1, 514.4/Proce.1
Shock 516.2/Proce. 1.2.3.5, 516.3/Proce. 1.3.4.5.6, 516.4/Proce.1.4
2 Backlit keyboard 0 0
(The KMC-18A has a three-level programmable illumination switching function (bright,
dark, and OFF).
3 The hook fitting has a switch function, and the on-hook ground wire is no longer 0 0
necessary.
4 The curly cord has
an 8-pin modular connector (microphone) and a 6-pin modular 0 0
connector (transceiver). It can be replaced easily.
5 A beep sounds to confirm operation. 0 0
(The KMC-18A is programmable to set it ON or OFF.)
6 DTMF key operation is inhibited while the PTT button is being held down. (The KMC- 0 0
18A is programmable to disable or enable the DTMF key.)
7 When the DTMF key is pressed, the
PTI turns on automatically and the microphone 0 0
is disabled.
8 The hook can
be held on or off. X 0
9 The DTMF code transmission time is variable. X 0
10 The 4th column tone transmission is variable. X 0
11
Eight types of DTMF code up to 22 digits (such as telephone numbers) can be stored X 0
in memory.
12 Connect/disconnect
ANI codes up to 17 digits can be stored in memory. X 0
13 One of the nine operation modes can be selected by combinations of three kinds of X 0
operation function (Auto Dial, Store and Send, and Manual Dial) and the Last Number
Redial function.

KMC-18/18A
SEMICONDUCTOR DATA
~PD75008-732-3B4 : KMC-18A (lC2)
Pin Terminal
1/0 Function
No. Name
1-3 P70 -P72 I Key data input
4 P63 0 PTT output
5
P62
0 HOOK output
6
P61
0 Backlight: Bright (Output high: Bright
is selected.)
7 P60 0 Backlight: Dark (Output high: Dark
is selected.)
8 P53 0 DTMF output enable (Output high: Tone
is output.)
9 P52 0 Tone select (Output high: Row tone
is output.)
10
P51
0 Tone select (Output low: Column tone is output.)
11 P50 0 Microphone mute control (Output high: Mute on)
12 NC -+5V
13
-16 P40 -P43 0 DTMF tone data output
17 Vss -GND
18
XT1
I Open (not used)
19 XT2 0 Open (not used)
20 RESET I Reset input (Low: Reset)
21 X1
I System clock input
22
X2
I System clock input
23 P33 0 EEPROM clock output
24 P32
1/0 EEPROM address output, data input/output
25
P31
0 Open (not used)
26 P30 0 Open (not used)
27
P81
0 Open (not used)
28
P81
0 2000-Hz/500-Hz beep output
29 P03 I Open (not used)
30 P02 I Open (not used)
31 P01
I Open (not used)
32
POO
I EEPROM version switching (Open:1-kbit EEPROM)
33 P13 I PTT switch input
34 NC -+5V
35 P12 I HOOK switch input
36 P11/INT1 I Test data input (Low: Input start)
37 P10/INTO I Clone data input (High: Input start)
38 NC -+5V
39 Voo -+5V
40-43 P20- P23 0 Key scan data output (Output: Normally low)
44 NC -Open (not used)
3

KMC-18/18A
PARTS LIST
" New Parts
Par ts wi tnout Parts No . are not supplied.
Les article s non mentionnes dans Ie Parts No. ne sont pas fournis.
Teile ohne Parts
No. werden nicht geliefert .
Ref.
No.
Address
New
Parts No.
Oeser ipt ion
Parts
wlllHt%
itr til
Ii
all
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all
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KMC-18/18A
1 18 * A02-1744-08 CASE(FRtSlNTl
? 38
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A02-1745-08 CASE(REAR)
~
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*
862-0354-08
INSTRUCTItSlN MANUAL(ACS)
4 *
872-0542-08
MtSlOEL NAME PLATE
4 *
872-0543-08 MISlDEL NAME PLATE
E23-04 2 6-05 TERMINAL< HtSltSlK)
6 2A
'"
E30-3156-05 CURL CISlRD
7 28
'"
E37-0345-08
CtSlNNECTING WIRE(2P)
CN1
'"
E40-5190-05
PIN ASSY(13P)
CN2
'"
E40-5179-05
PIN ASSY(2P)
CN3
E08-0571-05 MtSlDULAR JACK
W1
'"
E37-0344-08 CtSlNNECTING WIRE(13P)
8 38
'"
G02-0739-08
SPRING(PTT)
'"
G10-0736-08
FEL T( MIC)
'"
G10-0737-08
FELT(SP)
10 38
'"
G53-0753-08
PACKING(PTT)
11 28
'"
G53-0754-08
PACKING(MIC,SP)
12
'"
H52-0425-08 ITEM CARTtSlN 8tSlX
12
'"
H52-0426-08
ITEM CARTtSlN BtSlX
J19-1376-15 MIC HANGER
13
'"
J19-1511-05
MIC HANGER SET(ACS)
'"
J30-0595-08
SPACER(MIC)
15
3B
*
K24-2004-08
KNtSlB(PTT)
16 18
'"
K29-4856-08 KEY TtSlP
Xl
L78-0035-05 CRYSTAL
tSlSC<3.594MHZ)
Xl L78-0089-05 CERAMIC
ISlSC(480KHZ)
X2 L78-0036-05 CRYSTAL
tSlSC(4.19MHZ)
'*
N17-1020-46
TtSltSlTHED LtSlCK WASHER(HtSltSlK)
'"
N24-3020-41
E RING(PTT)
A *
N39-2050-41
MACHIN SCREW(HtSltSlK)
B * N46-2606-46
TAPTTTE SCREW(UNIT)
'"
N46-4016-46
TAPTITE SCREW(HANGER)
D
'*
N80-3016-41 TAPTITE
SCREW(CASE)
S50-1A.15-05
TACT SWITCH(PTT)
17
2B
T07-0285-05 SPEAKER
18
2B
'"
T91-0538-05
MICRlIlPHISlNE(EMC)
232-0032-05
TUBE(CASE)
01 1SS184 DltSlDE
D1 1SS190 DHilDE
D2 1SS181 DItSlOE
02 1SS190
DItSlDE
D3
lSS 184 DItSlOE
1)3
1SS190
OItSlOE
04
1SS190 DltSlDE
D4 155226 DllIlDE
OS 155226 DI tSlOE
[)6
1S5190
DIlIlDE
TCl
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L :S candinavia
K:USA P:Canada
T:EngJand E:Europe
Oesti-
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marks
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8
A
B
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8
A
A
8
A
B
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A
B
A:KMC-18A
B:KMC-18
Y:PX(F ar East. Hawaii)
Y:AAFE S( Europe) X:Australia M:Other Areas it indicates safety critical components .
4

KMC-18/18A
PARTS LIST
~ New Parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans Ie Parts No. ne sont pas fournls.
Teile ohne Parts No. werden nicht geliefert.
Ref.
No.
Address
New
Parts No.
Description
Parts
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TC35219F
IC(DTMF GENERAT~R)
IC2
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IC2
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IC(V~LTAGE REGULAT~R/
IC3
TC4S584F TC(SCHMITT TRIGGER)
TC3
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IC(EEPR~M)
1C4 M51943BML IC(SYSTEM RESET)
IC5 NJM78L08UA
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TRANSIST~R
G4
DTC144EK DTGITAL TRANSIST~R
G4 DTA144EK
DIGITAL
TRANSIST~R
G5 DTA144EK DIGITAL TRANSISmR
G5 DTC144EK DIGITAL
TRANSIST~R
G6 DTC144EK DIGITAL
TRANSIST~R
G7
DTA 144EK DIGITAL
TRANSISTIIJR
G7 DTC114YK DIGITAL TRANSIST~R
G8 DTC144EK DIGITAL TRANSIST~R
L:Scandinavia K:USA
P:Canada
T:England E:Europe
Desti-
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marks
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A
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B
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8
8
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B
A:KMC-18A
B:KMC-18
Y:PX(F ar East, Hawaii)
Y:AAFES(Europe) X:Australia M:Other Areas
Lh indicates safety itical components.
5

KMC-18/18A
EXPLODED VIEW
A
6

/'
( / /
/
/'
\/
KMC-18/18A
PACKING
-- . ~
]
/ )
/. 3 Instruction manual
~
/ ~ (862-0354-08)
7

KMC-18/18A
8
ADJUSTMENT
The DTMF tone deviation has been adjusted at the factory, so does not normally need
to be adjusted.
• DTMF tone deviation adjustment (for KMC-
l8/l8A)
1. Remove the three screws securing the back
of the KMC-18/l8A case, then remove the
back.
2. Connect the deviation meter to the
transceiver to be used, then connect the
KMC-18/l8A to the transceiver.
3. Hold down key [§J. The transceiver transmits
the DTMF tone corresponding to key &].
With key [§J still down, adjust semi-fixed
resistor VR 1 on the KMC-18/l8A board to set
the deviation to 2.2
kHz.
4. Put the back of the case on.
• The KMC-18A allows you to adjust the deviation
using the single tone transmission function.
Perform steps 1 and 2 above, then put the KMC-
l8A into set-up mode. (To enter set-up mode,
hold down keys [JJ, [3], and I*l and switch the
power on.)
Next, press keys [ill,
[Q], and 00 in that order,
then press the following keys:
Press
OJ to transmit the Row 1 tone.
Press
IlJ to transmit the Row 2 tone.
Press
~ to transmit the Row 3 tone.
Press [II to transmit the Row 4 tone.
Press [[i to transmit the Column 1 tone.
Press [ill to transmit the Column 2 tone.
Press
[l] to transmit the Column 3 tone.
Press [ill to transmit the Column 4 tone.
Adjust
VRl while each tone is being transmitted,
setting the deviation to 1 kHz for the Row 1 tone
(key
OJ) and to 1.5 kHz for the Column 1 tone
(key [[i).

KMC-18/18A
TERMINAL FUNCTION
Connector Terminal Terminal Terminal
function
No. No. Name
Connector Terminal Terminal
Terminal function
No. No. Name
KMC
-18
KMC-18A
CN1 1 E GND
CN1
1 E LED dimmer control
2
C1 Key matrix column 1 2
C1 Key matrix column 1
3
C2 Key matrix column 2 3
C2
Key matrix column 2
4 C3 Key matrix column 3 4
C3
Key matrix column 3
5 E GND 5 E GND
6 R4
Key matrix row 4 6
R4 Key matrix row 4
7
R3
Key matrix row 3 7
R3 Key matrix row 3
8
R2 Key matrix row 2 8
R2 Key matrix row 2
9
R1 Key matrix row 1 9
R1 Key matrix row 1
10 E GND 10 E GND
11 L2
LED power
11
L2 LED power
12
L1
LED power 12
L1 LED power
13
NC
Open (not used) 13
NC Open (not used)
KMC
-18118A
CN2 1 E GND
2
HKI Hook SW input
KMC-18118A
CN3 1 NC Open (not used)
2 SB Power supply
3 E GND
4 PTT PTT
5 ME Microphone GND
6 MC MIC/DTMF signal output
7 HK2 Hook switch output
8 NC Open (not used)
9

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KMC-18/18A
Element Type
Impedance
Sensitivity
Voltage required
Current drain
Operating temperature range
Output impedance
DTMF tone
output level
Frequency stability
Tone distortion
SPECIFICATIONS
:0 10 mm ECM
:1
KQ ± 30%
:-64 dB ± 3 dB at 1 kHz (0 dB = 1 v//J.Bar)
:DC 13.8V±20%
:45 mA or less (Back Light: bright, Beep: OFF)
:65 mA or less (Back Light: bright. Beep: ON)
:-300C -+600C
:600 Q
:5 mV ± 1.0 mV
:± 1.5%
:10% or less
High group tone
output (relative to low group) :+1 dB or more, +3 dB or less
KENWOOD CORPORATION
Alive Mitake. 2-5. Shibuya l-chome. Shibuya-ku. Tokyo 150. Japan
KENWOOD U.SA CORPORATION
COMMUNICATIONS & TEST EQUIPMENT GROUP
P.O. BOX 22745. 2201 East Dominguez St.. Long Beach. CA 90801-5745. U.S.A.
KENWOOD ELECTRONICS DEUTSCHLAND GMBH
Rembrucker Str. 15 . 6056 Heusenstamm. Germany
KENWOOD ELECTRONICS BENELUX N.V.
Mechelsesteenweg 418 B-1930 Zaventem. Belgium
TRIO-KENWOOD FRANCE SA
13. Boulevard Ney. 75018 Paris. France
TRIO-KENWOOD U.K. LIMITED
KENWOOD House. Dwight Road . Watford. Herts.. WDl 8EB United Kingdom
KENWOOD ELECTRONICS NEDERLAND B.V.
Amsterdamseweg 35. 1422 AC Uithoorn. The Netherlands
KENWOOD LINEAR S.pA
20125. Milano-via Arbe. 50. Italy
KENWOOD ESPANA SA
Bolivia. 239-08020 Barcelona. Spain
KENWOOD ELECTRONICS AUSTRALIA PTY. LTD.
(A.C.N. 001 499074)
P.O. Box 504. 8 Figtree Drive. Australia Centre. Homebush. N.S.W. 2140. Australia
KENWOOD & LEE ELECTRONICS, LTD.
Unit 3712-3724. Level 37. Tower one Metroplaza. 223 Hing Fong Road . Kwai Fong. N.T.. Hong Kong
KENWOOD ELECTRONICS CANADA INC.
6070 Kestrel Road . Mississauga. Ontario. Canada L5T 158