KENWOOD KSC-28 Service Manual

Cover page of KENWOOD KSC-28 Service Manual

Service Manual for KENWOOD KSC-28, downloadable as a PDF file.

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Sample pages

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© 2001-11 PRINTED IN JAPAN
B51-8616-00 (N) 73
RAPID CHARGER
KSC-28
SERVICE MANUAL
Parts List
: New Parts
Ref. No.
New
Parts No.
Description
parts
J19-5446-08
Holder
W08-0937-05
AC adapter
AC 120V, 60Hz
W08-0938-15
Charger
Specifications
Input voltage .............. AC 120V (Use the supplied AC adapter)
Charging time ....................... KNB-27N : Approx. 150 minutes
Usable temperature range ............ 0
°C to 40°C (32°F to 104°F)
Dimensions (W x H x D, charger only)
...... 81.3 (3-13/64) x 59.3 (2-21/64) x 90 (4-35/64) mm (inches)
Weight (Charger only) .............................. Approx. 100g / 3.5oz
AC adapter
(W08-0937-05)
Charger
(W08-0938-15)
Holder
(J19-5446-08)
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© 2001-11 PRINTED IN JAPAN
B51-8616-00 (N) 73
RAPID CHARGER
KSC-28
SERVICE MANUAL
Parts List
: New Parts
Ref. No.
New
Parts No.
Description
parts
J19-5446-08
Holder
W08-0937-05
AC adapter
AC 120V, 60Hz
W08-0938-15
Charger
Specifications
Input voltage .............. AC 120V (Use the supplied AC adapter)
Charging time ....................... KNB-27N : Approx. 150 minutes
Usable temperature range ............ 0
°C to 40°C (32°F to 104°F)
Dimensions (W x H x D, charger only)
...... 81.3 (3-13/64) x 59.3 (2-21/64) x 90 (4-35/64) mm (inches)
Weight (Charger only) .............................. Approx. 100g / 3.5oz
AC adapter
(W08-0937-05)
Charger
(W08-0938-15)
Holder
(J19-5446-08)
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2
KSC-28
PC BOARD VIEWS
CHARGER UNIT
Component side view
CHARGER UNIT
Foil side view
G
R
Q2
L1
D2
C1
D1
R13
R34
C2
C18
J12
J11
J10
C20
E
B
C19
J18
C5
JK1
DC
JACK
+
+
C3
D3
D6
POL
Y1
C21
M1
M2
M3
­­
T+
J14
C22
C23
C24
C26
R23
J15
J17
J13
J16
R48
D4
D5
R32
R31
R38
C7
+
R1
R10
LED1
U1
U4
1
14
7
8
R41
C13
R12
R14
R52
B10
U3
1
7
8
14
B5
B17
B14
B15
B16
R45
R49
C14
C12
V1
C4
R2
R42
Q6
Q5
J6
J5
R28
R50
R21
R7
R17
Q4
R33
J1
J2
J3
J4
C16
V2
B1
Q3
Q8
J19
B2
R20
B3
B6
B4
R51
C15
J9
R16
R15
R46
R19
R25
R26
R35
R36
R39
R40
C11
C17
R29
R30
R37
C8
C9
Q7
B13
R18
R43
J7
J8
B8
R44
R5
R11
B11
B12
B7
R4
U2
1
89
16
Q1
R8
R9
R24
R3
R6
B9
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3
KSC-28
SCHEMA
TIC
DIAGRAM
Q2
Q3
Q7
D1
R12
R24
1K
R14
470
R15
100K
20K
3.9K
R51
56K
C3
22
µ
25V
R23
R13
0.22
C15
104P
C21
105P
C19
105P
C16
104P
C20
105P
C22
105P
M1
V2
R52
R19
20K
R30
2K
R37
100K
C23
105P
D4
D5
C5
47P
100
B6
1
7
+
­
­
+
6
B5
B17
B15
B16
B11
R20 10K
R16 680
R29
47K
R48
100K
R45
10K
R46
10K
Vcc
Vcc
U3B
U3D
U3C
R38 3.9K
R28 5.1K
13
10
11
C8
101P
C7
104P
R43
47K
R35
4.3K
R36
3.57K
R34
4.3K
R42
10K
R49
4.7K
R50
10K
R33
300K
R32
10K
R31
10K
R25
4.3K
R26
47K
C9
104P
C24
105P
C26
105P
L1
+
D2
D3
R41 1K
Q6
Vcc
Vcc
Q5
Q4
B14
B13
B10
9
8
14
B4
B2
B3
B1
1
2
3
4
Vcc
Vcc
Vcc
5
3
2
4
+
­
12
PWR
U3A
V1
13
15
14
12
11
10
4
1
2
7
8
5
3
R21
4.7K
Vcc
Vcc
16
R44
47K
Vcc
CHB
VDC
XO/R
XI
BATB
CTRL
/INUSE
/CVB
/DISCB
C4
104P
R2
10K
R3
10K
R10
680
R11
680
100
µ
25V
100
µ
25V
C2
C1
C13
470P
C12
470P
C14
470P
C18
104P
B8
Vcc
B12
R4
53.6K
+
+
U1
R1 4.7K
Q1
VSS
JK1
DC
JACK
1
2
PWR
POLY1 D6
LED1
(G)
(R)
R8 4.7K
R9 4.7K
R5 47K
R6 47K
R7 4.7K
6
9
R17 1K
Vcc
R18
10K
Q8
B9
B7
8
3
2
6
1
Q
79
10
Q/Q MO
R39 240K
R40 470K
C11 105P
C17 105P
14
13
12
5
A
B
AR
R
RTC
CTC
RS
U4
U2
DISP
/AFAST
/AFULL
/BFULL
CHA
/BFAST
+
­
U1
: PJ-431
U2
: ST-828
U3
: KA339DTF or BA10339F
U4
: HEF4541
Q1,3,5,6,8 : 2SC2712
Q2
: 2SA1757 or 2SA1469
Q4
: 2SA1037
Q7
: RK7002
D1,2,6
: SB140
D3~5
: 1N4148
+ : Ni-MH
T : Terminal for
detection temperature
­ : Ground terminal
­ : Ground terminal
M2
M3
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KSC-28
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
Power on
Initialization
Are
output terminals
shorted?
Battery insert
Is the
battery abnormal?
(Shorted)
No contact of
T terminal?
Fast charge
(LED color : Red)
Trickle charging
current charge
(LED color : Green)
Red & Green
LED flash
Abnormal
reset?
Is
­
V
effect?
t
Is T > 55
°C?
Timer < 6 hours?
Total charging
timer 7~12 hours
Cut-off
(LED color : Green)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
­
V
= ­48mV/3.0min
t
(Sense 128 times)
Charger Flow Chart
CIRCUIT DESCRIPTION

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