Service Manual for KENWOOD KAP2

B51-8698-00 (N) 1109

HORN ALERT / P.A. RELAY UNIT

KAP-2

SERVICE MANUAL

Crimp terminal

(E23-1257-05) x 8

Packing

(G53-1643-04)

Insulating cover

(F29-0481-05)

Lead wire with connector

(E37-1114-05)

Lead wire with connector

(E37-1113-05)

Relay unit

(X41-3670-20)

Square plug

(E59-0419-05)

Brazier head taptite screw

(N87-2606-48)

E23-1257-05

CRIMP TERMINAL

E37-1113-05

LEAD WIRE WITH CONNECTOR

E37-1114-05

LEAD WIRE WITH CONNECTOR

E59-0419-05

SQUARE PLUG

F29-0481-05

INSULATING COVER

G53-1643-04

PACKING

N87-2606-48

BRAZIER HEAD TAPTITE SCREW

PARTS LIST

C1-5

CK73FB1H102K

CHIP C

1000PF

K

C7,8

CK73FB1E103K

CHIP C

0.010UF

K

E18-0254-05

SOCKET

CN1

E40-6375-05

PIN ASSY

CN2

E40-6394-05

PIN ASSY

CN3

E40-6393-05

PIN ASSY

R3,4

R92-0670-05

CHIP R

0 OHM

K1,2

S76-0451-05

RELAY

D1,2

1SS355

DIODE

Q1,2

DTD114EK

DIGITAL TRANSISTOR

New

parts

Parts No.

Description

Ref.

No.

KAP-2

New

parts

Parts No.

Description

Ref.

No.

RELAY UNIT (X41-3670-20)

: New parts

KAP-2 (Y60-4040-20)

KAP-2

2

Components Description

Relay unit (X41-3670-20)

Ref. No.

Part name

Description

Q1,2

Transistor

Switching

D1,2

Diode

Reverse electromotive force protection

Terminal Function

Relay unit (X41-3670-20)

Pin No. Name I/O

Description

CN1

1

GND

-

Ground.

2

HR2

O

Horn alert signal output 2.

3NC-

Non-connection.

4

SPO

I

Speaker input.

5

SPI

O

Speaker output.

6

ESP

I

Speaker input.

CN2

1

HR2

O

Horn alert signal output 2.

2

GND

-

Ground.

3

OSP

O

External speaker output (PA).

4

ESP

O

External speaker output.

5

GND

-

Ground.

6

HR1

I

Horn alert signal input 1.

CN3

1

GND

-

Ground.

2

HOR

I

Control signal input of Horn Alert function.

3PA

I

Control signal input of Public Address function.

4

SPO

O

Speaker output.

5

SPI

I

Speaker input.

6SBI

Power input of switched power supply.

Cable (E37-1113-05) 6-pin Connector

Circuit Description

Public Address (PA) function

The PA output switching relay is controlled by turning the

PA function on and off. When the PA is activated, the PA

output flows through the following path.

The audio signal input from the microphone passes

through the filter, amplifier and other circuits of the TX-RX

unit (B/3) and goes to pin 5 (SPI) of CN3 of the relay unit. The

audio signal passes through the relay (K2) and is output to pin

3 (OSP) of CN2.

Horn Alert (HA) function

The relay unit can be controlled by turning the HA function

on and off and by using a signaling decode output. The maxi-

mum current of HA is 2A.

There are two Horn Alert settings: HA1 (Default) and HA2.

HA2 can be set by changing the short pin of CN1.

CN1 Connect

Set Up

1-2

HA1

2-3

HA2

External Speaker (KES-5)

External speaker KES-5 can be installed for KAP-2. If KES-

5 is installed, it can be set by changing the CN1 short pin from

pins 4 and 5 (INT SP) to pins 5 and 6 (EXT SP).

CN1 Connect

Set Up

4-5

INT. SP

5-6

EXT. SP

CIRCUIT DESCRIPTION / COMPONENTS DESCRIPTION / TERMINAL FUNCTION

HR1

HR2

HA1 (Default)

HR1

HR2

HA2

CN1 pin 1-2

connect

CN1 pin 2-3

connect

Pin No.

Color

Name

1

Red

HR2

2

Blue

GND

3

Yellow

OSP

4

Green

ESP

5

Brown

GND

6

Black

HR1

3

2

1

6

5

4

KAP-2

3

C1

1000p

C2

1000p

C3

1000p

C4

1000p

C5

1000p

C7 0.01u

C8 0.01u

R3

0

R4

0

Q1

DTD114EK

K1

S76-0451-05

K2

S76-0451-05

CN1

E40-6375-05

1

GND

2

HR2

3

NC

4

SPO

5

SPI

6

ESP

Q2

DTD114EK

CN3

E40-6393-05

1

GND

2

HOR

3

PA

4

SPO

5

SPI

6

SB

CN2

E40-6394-05

1

HR2

2

GND

3

OSP

4

ESP

5

GND

6

HR1

D1

1SS355

D2

1SS355

+

4-5

5-6

PA

LO

HI

LO

HI

SPI-SPO

SPI-OSP

SPI-ESP

SPI-OSP

AF

LO

HI

CN1

CONNECT

CN1

CONNECT

HOR

2-3

LO

HI

1-2

HR1

HR1-Open

HR1-GND

HR1-Open

HR1-HR2

K1

K2

GND

HR2

NC

SPO

SPI

ESP

HR2

GND

OSP

ESP

GND

HR1

GND

HOR

PA

SPO

SPI

SB

CN1

CN2

CN3

C1

C2

C3

C4

C5

C7

C8

D1

D2

Q1

Q2

R3

R4

1

6

1

6

1

6

J72-0922-09

Component side

Foil side

Layer 1

Layer 2

Component side

Foil side

Layer 1

Layer 2

RELAY UNIT (X41-3670-20)

Component side view (J72-0922-09)

RELAY UNIT (X41-3670-20)

Foil side view (J72-0922-09)

PC BOARD / SCHEMATIC DIAGRAM

PC Board

Schematic Diagram

RELAY UNIT (X41-3670-20)

KAP-2

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

KENWOOD KAP2 Service Manual

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