Kenwood KSC-24 Manuals

RAPID CHARGER KSC-24 SERVICE MANUAL Circuit Description I Power Supply Section 1. The power supply generates constant current (1.1A) from the input voltage (rated 15V DC) from the adapter. 2. IC101 is a DC/DC converter. 3. R117 is a resistor for current detection. 4. R110 and R111 are resistors for no-load voltage detec- tion (non-load voltage : 14V). 5. IC201 is a power supply/reset IC for the microcomputer (IC202). · Power output : 5V · Reset output : “H” (Normal) · After reset : “L” I Charging Control Section 1. The microcomputer (IC202) controls the following; · Peak detection (Detected when fully charged, pin 27 of IC202) · Temperature control (Pin 2) · Detection of abnormality, such as a short terminal (Pin 27) · LED control (Red : Pin 21, Green : Pin 22) · Trickle charging (Pin 18) · Quick charging (Pin 17) 2. X201 is an oscillator that generates clocks for the micro- computer (4MHz). AC adapter (W08-0523-15) : K (W08-0524-15) : E (W08-0939-05) : T Relay terminal (E23-1058-08) x 4 Cabinet (Upper) (A02-3626-08) © 2001-5 PRINTED IN JAPAN B51-8583-00 (N) 1775 I Charging Switch Section 1. Q201 is a transistor that turns quick charging on and off. 2. Q202 is a transistor that turns trickle charging on and off. 3. The resistor (R204) determines the leakage current. I Display Section 1. LED201 is a two-color LED that indicates the charging state. 2. Red on ............... Quick charging or warming up Green on ............ Charging is complete Red blinking ....... Abnormal (short terminal, short bat- tery, or open terminal) Charging The charging time for each pack is shown in the table. Battery Battery Voltage Battery Approximate Pack Type (Volts) Capacity Charging Time (mAh) (Minutes) KNB-14 Ni-Cd 7.2 600 40 KNB-15A Ni-Cd 7.2 1100 60 KNB-16A Ni-Cd 7.2 1100 60 KNB-17A Ni-Cd 7.2 1500 80 KNB-20N Ni-MH 7.2 1600 80 KNB-21N Ni-MH 7.2 1600 80 KNB-22N Ni-MH 7.2 2100 110 Photo is K type. KSC-24 2 PARTS LIST / EXPLODED VIEW / PC BOARD VIEW PC Board View Electric circuit module (W02-1932-08) Component side view Parts List ✽ : New parts Ref. No. New Parts No. Description Desti- parts nation 1 ✽ A02-3626-08 Cabinet (Upper) 2 ✽ A02-3652-08 Cabinet (Lower) 3 E03-0187-08 DC jack 4 E23-1058-08 Relay terminal 5 F09-0455-08 Thermal fuse 6 F53-0149-08 Fuse (2A) 7 G13-1546-08 Cushion A N80-2610-45 Pan head taptite screw 8 W02-1932-08 Electric circuit module – W08-0523-15 AC adapter (120V/60Hz) K – W08-0524-15 AC adapter (230V/50Hz) E – ✽ W08-0939-05 AC adapter (230V/50Hz) T Exploded View R210 C104 Q104 Q103 R211 R114 DZ101 + C110 R112 R113 C102 + D102 Q101 G D S C111 FB101 TF101 L101 LED201 R G 117°C 2A R118 JP2 JP4 R110 Q202 R203 Q201 B C E R108 C105 R109 Q102 R119 R115 R105 R111 R104 R107 JP1 R117 R116 R101 R102 R103 C103 R106 JP3 C106 C107 C108 1 8 9 16 IC101 R226 R204 C205 R209 R213 R215 R217 R202 JP6 R201 R225 D201 R212 R214 R216 R223 R221 D202 R218 R219 R205 R208 + C101 JP7 C202 DZ202 R224 R222 C204 R220 R206 DZ201 IC202 1 15 16 30 Q205 Q206 JP5 Q203 Q204 1 4 5 8 IC201 + + C203 C201 X201 ± T + JA1 F101 125V 2.0A D101 + 1 4x4 3 6 8 5 2 7x2 Ax2 A A 701 KSC-24 3 CIRCUIT DIAGRAM * : Not installed Vcc : +5V 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. Mechelsesteenweg 418 B-1930 Zaventem, 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 SPECIFICATIONS Charging current ....................................... 1100 ± 150mA Source voltage .......................................... Approx. 15V Usable temperature range........................ 0°C to 40°C (32°F to 104°F) Line voltage (AC adapter) ......................... 120V AC (K) 230V AC (E) 230V AC (T) Dimensions (Body only) ............................ 2-11/64 in (55mm) H x 4-1/8 in (105mm) W x 5-5/16 in (135mm) D Weight (Body only) ................................... Approx. 180g / 6.3oz KSC-24