Kenwood KSC-31 User manual

REVISED
SERVICE MANUAL
This product uses Lead Free solder.
This product complies with the RoHS directive for the European market.
© 2008-12 PRINTED IN JAPAN
B51-8685-10 (N)509
KSC-31
RAPID CHARGER
Cabinet (Upper)
(A02-3861-08)
Badge
(B43-1170-08)
Relay terminal
(E23-1258-08) x 3
This service manual has been revised due to
the modification of the AC adapter and the
addition of types T and X.
PARTS LIST ............................................................................................... 2
FLOW CHART ............................................................................................ 3
PC BOARD ................................................................................................. 4
SCHEMATIC DIAGRAM ............................................................................ 5
SPECIFICATIONS ................................................................. BACK COVER
CONTENTS

KSC-31
2
Document Copyrights
Copyright 2008 by Kenwood Corporation. All rights re-
served.
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 Kenwood.
Disclaimer
While every precaution has been taken in the preparation
of this manual, Kenwood assumes no responsibility for er-
rors or omissions. Neither is any liability assumed for dam-
ages resulting from the use of the information contained
herein. Kenwood reserves the right to make changes to any
products herein at any time for improvement purposes.
✽: New Parts
: Safety critical components
Ref. No. Address New
parts Parts No. Description Destination
KSC-31
A02-3861-08 CABINET (UPPER)
A02-3862-08 CABINET (BOTTOM)
B43-1170-08 BADGE
E03-0200-08 DC JACK
E23-1258-08 RELAY TERMINAL
N83-2610-45 PAN HEAD TAPTITE SCREW
✽W02-3736-08 ELECTRIC CIRCUIT MODULE
W08-0971-35 AC ADAPTER 230V AC 50/60HZ E
✽W08-0972-25 AC ADAPTER 230V AC 50/60HZ T
✽W08-1046-05 AC ADAPTER 100-240V AC 50/60HZ K
✽W08-1078-05 AC ADAPTER 100-240V AC 50/60HZ X
PARTS LIST

KSC-31
3
Power on
Initialization
Are
output terminals
shorted?
Battery insert
Is the
battery abnormal?
(Shorted)
No contact of
T terminal?
Fast charge
(LED color : Red)
Cut fast-charging process
→Trickle charging process
(LED color : Green)
Red LED flash
LED off & stop
charging process
Abnormal
reset?
Is –ΔV effect?
Is T55°C?
Timer3 hours?
Is VB7.3V?
Is VB7.3V?
Timer10 hours?
Cut-off
(LED color : Green)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
FLOW CHART

KSC-31
4
R22
R9
JK3
D1
D4
+T–
L1
Q1
C10
C4
JACK
JK5
R12
Y1
JK1
JK2
JK4
U1
G
BCE
OI
LED
GR
C11
R7
R8
R5
R16
C18
C8
C20
C1
C7
R18
R17
C15
C14
B1
R21
R4
R2
D3
C3
C2
R3
$C17
Q2
R1
C9
R10
R11
R15
B2 R20
R19
U2
1
1011
20
C13
P1
+
+
R6
D2
PC BOARD
ELECTRIC CIRCUIT MODULE (W02-3736-08) Component side view
ELECTRIC CIRCUIT MODULE (W02-3736-08) Foil side view

KSC-31
5
SCHEMATIC DIAGRAM
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
U2
AMC-08
C8 22p C9 22p
R20 20k
R21
2.1k
C18 0.1μ
C20 470p
C3 0.1μ C2 0.1μ
$C17 470p
R5 1k
R16
470
D3
1N4148W
C15
0.068μ
C13
1000p
R6
270
R7
15k
R8
10k
C4
R4
220
C10
100μ/25V
47μ
/25V
R1
15k
R2
2k
B1
B2
Y1
8MHz
R10
4.7k
R11 10k
R15 1k
1
1
2
DC JACK
3
+
+
2
R12 1k
R3 4.7k
R18
470
R17
100k
C14
0.1μ
C1 0.1μ
R19
470
VCC+5V
VCC+5V
1
2
3
+VBAT
T
–VBAT
VCC+5V
+DC IN
+14.5V
P1
RUEF-185
D1
SB240
D2 SB240
C11 0.1μ
R22 10k
D4
SB240
R9
0.45
L1
AL-331120
C7
0.1μ
RED
GREEN
LED
L059AGW-K
JK1
JK3
JK4 JK5
JK2
Q2
2SC2712
Q1
2SA1469
U1 LM78L05C
GOI

KSC-31
2967-3, Ishikawa-machi, Hachioji-shi, Tokyo, 192-8525 Japan
P.O. BOX 22745, 2201 East Dominguez Street, Long Beach,
6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8
Rembrücker Str. 15, 63150 Heusenstamm, Germany
Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium
KENWOOD House, Dwight Road, Watford, Herts.,
Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands
Via G. Sirtori, 7/9 20129 Milano, Italy
Bolivia, 239-08020 Barcelona, Spain
(A.C.N. 001 499 074)
16 Giffnock Avenue, Centrecourt Estate, North Ryde, N.S.W. 2113 Australia
Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road,
1 Ang Mo Kio Street 63, Singapore 569110
CA 90801-5745, U.S.A.
Kwai Fong, N.T., Hong Kong
WD18 9EB United Kingdom
L’Etoile Paris Nord 2, 50 Allée des Impressionnistes,
Bp 58416 Villepinte, 95944 Roissy Ch De Gaulle Cedex
Input voltage................................................................... K,X: AC 100~240V (Use the supplied AC adapter)
E,T: AC 230V (Use the supplied AC adapter)
Charging current........................................................................................................................ 850mA±5%
Charging time ............................................................................................. KNB-29N: Approx. 180 minutes
KNB-30A: Approx. 120 minutes
Usable temperature range.................................................................................5°C to 40°C (41°F to 104°F)
Dimensions (W x H x D, charger only)............................ 86.3 (3-3/8) x 46.2 (1-7/8) x 100.0 (4) mm (inches)
Weight (Charger only)...............................................................................................Approx. 100g / 0.22 lbs
SPECIFICATIONS