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MULTI-FUNCTION MICROPHONE WITH DTMF
MC-57DM/58DM
© 2002-2 PRINTED IN JAPAN
B51-8625-00 (S) 789
SERVICE MANUAL
Type
Electret capacitor
Power requirement
8.0 V DC ±10 %
Current drain
35 mA or less
Dimensions (WxHxD)
65 x 90 x 30 mm
2 9/16 x 3 17/32 x 1 3/16 inches
Weight
Approx. 180 g/ 6.3 oz
Sensitivity
­52 ±3 dB (at 1 kHz)
(0 dB = 1 V/Pa)
SPECIFICATIONS
MC-57DM
MC-58DM


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MC-57DM/58DM
2
CONNECTOR END VIEW
Item
Condition
Test equipment/Measurement
Adjustment
Specifications/Remarks
ADJUSTMENT
DTMF
c nkey at
VR1
2.4mV ±0.01mV
output level
same time push
MC-57DM
METAL plug (8P)
MC-58DM
Moduler plug (8P)
When you change the R10 from 820 to 1.8k, the microphone sensitivity increases approximately 6dB.


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MC-57DM/58DM
3
SCHEMA
TIC
DIAGRAM


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MC-57DM/58DM
PARTS LIST
A02-3760-08
CABINET(FRONT)
A02-3761-08
CABINET(REAR)
B62-1660-00
INSTRUCTION MANUAL
E30-3243-08
CURL CABLE(8P METAL)
57DM
E30-3240-08
CURL CABLE(8P MODULER)
58DM
J29-0630-08
HOOK
K29-9225-08
KNOB ASSY(PTT)
K29-5102-08
KNOB(UP,DOWN)
K29-5439-08
KEY TOP(20KEY)
K29-5104-08
KNOB(LOCK)
N53-3020-41
FLAT HEAD TAPPING SCREW(HOOK)
SW3,4
S40-1117-05
TACT SWITCH(UP,DOWN)
SW2
S62-0441-08
SLIDE SWITCH(LOCK)
SW1
S70-0465-08
TACT SWITCH(PTT)
T91-0570-08
MIC ELEMENT
Destination
Ref. No.
Parts No.
Description
Address
New
parts
MC-57DM/58DM (Y58-3490-21/Y58-3500-21)
KENWOOD CORPORATION
14-6, Dogenzaka 1-chome, Shibuya-ku, Tokyo 150-8501, Japan
KENWOOD SERVICE 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., WD1 8EB 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 TECHNOLOGIES(S) PTE LTD.
Sales Marketing Division
1 Ang Mo Kio Street 63, Singapore 569110
New Parts.