Kenwood KMC-41D Manuale utente

SERVICE MANUAL

This product complies with the RoHS directive for the European market. This product uses Lead Free solder.

RQ023 (K) B5B-7119-00

KMC-41D

SPEAKER MICROPHONE

Document Copyrights

rights reserved.

No part of this manual may be reproduced, translated,

distributed, or transmitted in any form or by any means,

electronic, mechanical, photocopying, recording, or other-

wise, for any purpose without the prior written permission of

JVC KENWOOD Corporation.

Disclaimer

While every precaution has been taken in the preparation

of this manual, JVC KENWOOD Corporation assumes no

responsibility for errors or omissions. Neither is any liability

assumed for damages resulting from the use of the informa-

tion contained herein. JVC KENWOOD Corporation reserves

the right to make changes to any products herein at any time

for improvement purposes.

SPECIFICATIONS

Microphone

Impedance .................................................... 2.2k(MAX)

Sensitivity ........................................–65dB ± 4dB at 1kHz

Speaker

Impedance ...........................................16±15% at 1kHz

Rating input .............................................................. 0.5W

Maximum input ......................................................... 1.5W

Dimensions (W x H x D)

............... 67.8 x 91.5 x 43.3 mm (2.67 x 3.60 x 1.70 in)

Weight ................................................. Approx. 260g/9.2oz

KMC-41D

Dressed screw (Universal)

(N08-0566-08)

Lever (PTT)

(D10-0654-18)

Plastic cabinet assy

(A02-4050-08)

Cord with plug

(E30-7657-08)

KMC-41D

1. Removing the cable ASSY

1) Pull out the holder that is set into the ﬁxing bracket of the

cable ASSY, using a pair of pliers.

Holder

Fixing bracket

Waterproof line

Cable ASSY

Fig. 1

2) Completely peel off the bond (*1) glued to the cable

ASSY, using a set of nippers.

Note: Please be careful not to damage the coating of the

cable ASSY and the waterprooﬁng line of the front case.

*1: Use the following bond:

• Manufacture name: Shin-Etsu Chemical Co., Ltd.

• Bond name: Shin-Etsu silicone One-component RTV

silicone rubbers Alcohol type KE-4898-T

Bond

Fig. 2

3) Following the procedure below, pass through the connec-

tor part of the cable ASSY into the hole of the front case

(waterproof line part).

(1) Move the three lead wires soldered onto the PCB to

the upper corner of the hole.

(2) The yellow lead wire side of the connector comes in

the inside of the front case.

White lead wire

Yellow lead wire

Three lead wires

Fig. 3

(3) Push the cable ASSY to the earphone jack side with

the connector part bent as shown in the ﬁgure, then

hook the end of the connector (white lead wire side)

into the outside corner of the hole, using your ﬁnger.

(4) Pass the connector through the hole, pushing the con-

nector (yellow lead wire side) using a pair of tweezers

or similar tool.

Note: Attach adhesive tape or rubber to the end of the

tweezers so as not to damage the connector of the

cable ASSY.

Yellow lead wire

Fig. 4

4) Pull the cable ASSY, then remove the cable ASSY from

the front case by passing the connector part through the

hole of the front case.

Fig. 5

DISASSEMBLY FOR REPAIR

KMC-41D

2. Installing the cable ASSY

1) Pass the connector part of cable ASSY through the hole

of the front case.

2) Move the three lead wires soldered onto the PCB to the

upper corner of the hole.

Three lead wires

Connector part of cable ASSY

Fig. 6

3) Make sure the yellow lead wire side of the connector is in

the inside of the front case.

Yellow lead wire

Fig. 7

4) Push the connector (yellow lead wire side) to the lower

corner of the hole using a pair of tweezers.

Note: Attach adhesive tape or rubber to the end of the

tweezers so as not to damage the connector of the cable

ASSY.

5) Pass the connector through the hole by pushing the con-

nector (white lead wire side) using a pair of tweezers or

similar tool.

Yellow lead wire

Fig. 8

6) Push the cable ASSY to the inside of the case, then in-

sert the ﬁxing bracket of the cable ASSY to the hole of

the front case.

7) Fit the holder to the ﬁxing bracket of the cable ASSY.

Fixing bracket

Holder

Fig. 9

8) Insert the cap in the earphone jack hole of the front case.

9) Apply the bond (*1) at the position shown in the ﬁgure,

then ﬁrmly attach the cable ASSY and case.

Note: Take care not to apply the bond to the waterproof-

ing line of the front case.

*1: Use the following bond :

• Manufacture name: Shin-Etsu Chemical Co., Ltd.

• Bond name: Shin-Etsu silicone One-component RTV

silicone rubbers Alcohol type KE-4898-T

Bond

Fig. 10

DISASSEMBLY FOR REPAIR

KMC-41D

SCHEMATIC DIAGRAM

IC101 NJM3404AM-ZB

4V-

V+

C117

47p

R114

2.7k

R107

12k

R113 R106

R104

R105

R109

10k

R108

10k

R101

2.2k

2.7k

22k

100k

68k

R102

R103

R110

10k

R111

27k

R112

C104

1000p

C103

1000p

C108

10u

C107

C106

C109

C105

C116

0.01u

C101

C118

470p

C120

470p

C119

470p

L101

L104

L103

R116

CN101

MIC

MICE

SP+

SP-

PTT

TX_LED

CN153

CN154

C121

470p

–+

+–

PF1 PF2

MAIN UNIT

main MC

EC MC

L13

L92-0162-05

L11

L92-0408-05

L92-0163-05

L92-0408-05

L12

L92-0162-05

L10

L92-0162-05

L92-0163-05

SP+

SP-

MIC

MICE

PTT

TXLED

SUB UNIT

C201

470p

C200

470p

L202

L203

C102

47p

L200

L201

L92-0140-05

L92-0138-05

L92-0140-05

L92-0163-05

KMC-41D

EXPLODED VIEW

16x2

26 25x2

701

702

703

704x3

705x2

706

708

710x5

711x4

712

713

714 715 716

717

Parts with the exploded numbers larger than 700 are not supplied.

KMC-41D

JVC KENWOOD Corporation

Communications Equipment Div

KMC-41D

Ref. No. Address Parts No. Description Destina-

tion

KMC-41D

1 A02-4050-08 PLASTIC CABINET ASSY

2 A82-0073-08 REAR PANEL

4 B43-1616-08 BADGE (KENWOOD)

5 B4C-0005-00 BADGE (KMC-41D)

7 D10-0654-18 LEVER (PTT)

9 E11-0712-08 3.5D PHONE JACK

10 E30-7657-08 CURL CABLE ASSY

12 G10-1358-08 FIBROUS SHEET

13 G10-1386-08 FIBROUS SHEET (PHONE JACK)

14 G11-4450-08 SHEET (LEAK TEST)

15 G11-4452-08 SHEET (PHONE JACK)

16 G13-2241-08 CUSHION (PTT)

17 G53-1779-08 PACKING (PTT)

18 G53-1784-08 PACKING (BOTTOM CAP)

20 J19-5515-08 HOLDER (PTT)

21 W0C-0024-00 PRINTED WIRING BOARD ASSY

22 J29-0740-08 BELT HOOK ASSY

23 J99-0729-08 ADHESIVE SHEET (JACK COVER)

A N08-0566-08 DRESSED SCREW (UNIVERSAL)

25 S70-0471-08 TACT SWITCH (PF)

26 S70-0511-08 TACT SWITCH (PTT)

28 T07-0359-18 SPEAKER

29 T91-0584-08 MIC ELEMENT (MAIN MIC)

30 T91-0660-08 MIC ELEMENT (SUB MIC)

PARTS LIST

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