Kenwood TK-890 Service Manual
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Kenwood TK-890 Service Manual

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Document Copyrights
Copyright 2006 by Kenwood Corporation. All 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 otherwise, 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 errors or omissions. Neither is any liability assumed for
damages 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.

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Summary of Contents for Kenwood TK-890

  • Page 1 Kenwood. Disclaimer While every precaution has been taken in the preparation of this manual, Kenwood assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained herein. Kenwood reserves...
  • Page 2 SERVICE MANUAL SUPPLEMENT II © 2005-2 PRINTED IN JAPAN B51-8719-00 ( N ) PDF This service manual applies to products with 50700156 (TK-890), 50700001 (TK-890(B)), 51100001 (TK-890H(B)) or subsequent serial numbers. TK-890 or TK-890(B) with KCH-10 Cabinet (Upper) Panel assy...

  • Page 3: Parts List

    TK-890/890 /890H PARTS LIST CAPACITORS 2 2 0 • Capacitor value CC45 Color* 010 = 1pF 0 = 22pF 1 = Type ... ceramic, electrolytic, etc. 4 = Voltage rating 100 = 10pF 2 = Shape ... round, square, etc.
  • Page 4 Description parts nation parts nation E04-0154-05 PIN SOCKET FINAL UNIT (X57-5620-XX) (C/3) : TK-890/890(B) E23-0902-05 TERMINAL -10 : TK-890/890(B) K -11 : TK-890(B) K2 -12 : TK-890(B) K3 E04-0154-05 PIN SOCKET CK73GB1H471K CHIP C 470PF E23-1118-05 TERMINAL C92-0721-05 ELECTRO 330UF...
  • Page 5 TK-890/890 /890H PARTS LIST FINAL UNIT (X45-3570-10) : TK-890H(B) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation CN3,4 E23-1116-05 RELAY TERMINAL FINAL UNIT (X45-3570-10) : TK-890H(B) W1,2 E37-0183-05 PROCESSED LEAD WIRE...
  • Page 6 TK-890/890 /890H PARTS LIST FINAL UNIT (X45-3570-10) : TK-890H(B) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation D901 UDZS4.3B ZENER DIODE D902-904 1SS355 DIODE ✽ RA45H4452M-31 MOS-IC IC901,902 OP291GS BI-POLAR IC...
  • Page 7 TK-890/890 PC BOARD FINAL UNIT (X57-5620-XX) (C/3) -10 : TK-890/890(B) K -11 : TK-890(B) K2 -12 : TK-890(B) K3 Component side view (J72-0939-09 C/3) J72-0939-09 C/3 C822 C808 FINAL UNIT (X57-5620-XX) (C/3) -10 : TK-890/890(B) K -11 : TK-890(B) K2 -12 : TK-890(B) K3...
  • Page 8 TK-890/890 PC BOARD FINAL UNIT (X57-5620-XX) (C/3) -10 : TK-890/890(B) K -11 : TK-890(B) K2 -12 : TK-890(B) K3 Component side view (J72-0939-09 C/3) Ref. No. Address Component side Layer 1 Layer 2 Layer 3 Layer 4 Foil side FINAL UNIT (X57-5620-XX) (C/3)
  • Page 9 PC BOARD FINAL UNIT (X57-5620-XX) (C/3) FINAL UNIT (X57-5620-XX) (C/3) -10 : TK-890/890(B) K -11 : TK-890(B) K2 -12 : TK-890(B) K3 -10 : TK-890/890(B) K -11 : TK-890(B) K2 -12 : TK-890(B) K3 Component side view (J72-0939-09 C/3) Component side view (J72-0939-09 C/3) Ref.
  • Page 10 TK-890H PC BOARD FINAL UNIT (X45-3570-10) Component side view (J72-0570-22) J72-0570-22...
  • Page 11 TK-890H PC BOARD FINAL UNIT (X45-3570-10) Component side view (J72-0570-22) Ref. No. Address IC901 IC902 Q901 D901 D902 D903 D904 R913 R914 R918 R912 IC902 R911 C912 R910 C913 R909 D903 D902 R908 R905 R902 C907 Q901 Component side Layer 1 Layer 2 C910 Foil side...
  • Page 12 TK-890H TK-890H PC BOARD PC BOARD FINAL UNIT (X45-3570-10) Component side view (J72-0570-22) FINAL UNIT (X45-3570-10) Component side view (J72-0570-22) Ref. No. Address IC901 IC902 Q901 D901 D902 D903 D904 R913 R914 R918 R912 IC902 R911 C912 R910 C913 R909 D903 D902 R908...
  • Page 13 TK-890H PC BOARD FINAL UNIT (X45-3570-10) Foil side view (J72-0570-22) J72-0570-22...
  • Page 14 TK-890H PC BOARD FINAL UNIT (X45-3570-10) Foil side view (J72-0570-22) Component side Layer 1 Layer 2 Foil side...
  • Page 15 TK-890H TK-890H PC BOARD PC BOARD FINAL UNIT (X45-3570-10) Foil side view (J72-0570-22) FINAL UNIT (X45-3570-10) Foil side view (J72-0570-22) Component side Layer 1 Layer 2 J72-0570-22 Foil side...
  • Page 16 TK-890/890 SCHEMATIC DIAGRAM POWER AMP FINAL UNIT (X57-5620-XX) (C/3) -10 : TK-890/890(B) K -11 : TK-890(B) K2 -12 : TK-890(B) K3 CN203 +20dBm (4.27V) PROTECT OF VOLTAGE RIPPLE FILTER 13.57V PROTECT OF REVERSE (12.6V) Q801 CONNECTION 2SC4116(Y) R804 CURRNT CN501...
  • Page 17 TK-890/890 SCHEMATIC DIAGRAM FINAL UNIT (X57-5620-XX) (C/3) FORWARD WAVE ANT SW RECTIFICATION CN104 ANT SW MA4PH633 470p +46.02dBm HSM88AS HSM88AS FORWARD REFLECTED WAVE WAVE C817 C818 RECTIFICATION RECTIFICATION 100p 100p R810 R811 R812 150k 220k 270k R809 DC AMP IC802...
  • Page 18 POWER AMP FORWARD WAVE ANT SW RECTIFICATION CN104 FINAL UNIT (X57-5620-XX) (C/3) -10 : TK-890/890(B) K -11 : TK-890(B) K2 -12 : TK-890(B) K3 ANT SW CN203 +20dBm MA4PH633 470p +46.02dBm HSM88AS HSM88AS (4.27V) FORWARD REFLECTED WAVE WAVE C817 C818...
  • Page 19 TK-890H SCHEMATIC DIAGRAM FINAL UNIT (X45-3570-10) :TK-890H(B) K (2.25V) 6.8k 1/2(W) RD60HUF1-01 TX DRIVE AMP RA45H4452M-31 CN203 Q6,7 +20dBm FINAL AMP 100p (3.52V) RD60HUF1-01 6.8k 1/2(W) (2.25V) CN201 RIPPLE FILTER Q901 2SC4116(Y) R904 R902 (7.96V) PROTECT OF VOLTAGE CORRECTION TEMPERATURE D904 D902 R906...

  • Page 20: Schematic Diagram

    TK-890H SCHEMATIC DIAGRAM FINAL UNIT (X45-3570-10) +48.75 - +50dBm REFLECTED WAVE RECTIFICATION HSM88AS CN104 S51-1437-05 SURGE ABSORPTION HSM88AS 1SS193 9.5V FORWARD (0V) WAVE RECTIFICATION TX/RX SW TX/RX SW 2SD1624(S) 1.2k FMC2 02CZ10(X,Y) VOLTAGE REFERENCE 13.4V (12.50V) DC 13.4V 7.92V (0V) R912 R910 R911...
  • Page 21 FINAL UNIT (X45-3570-10) :TK-890H(B) K (2.25V) 6.8k 1/2(W) +48.75 - +50dBm REFLECTED WAVE RECTIFICATION RD60HUF1-01 TX DRIVE AMP HSM88AS RA45H4452M-31 CN203 Q6,7 FINAL AMP +20dBm 100p CN104 S51-1437-05 (3.52V) SURGE ABSORPTION RD60HUF1-01 HSM88AS 1SS193 FORWARD 9.5V WAVE (0V) RECTIFICATION TX/RX SW TX/RX SW 2SD1624(S) 1.2k...
  • Page 22 Rembrücker Str. 15, 63150 Heusenstamm, Germany Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium 13, Boulevard Ney, 75018 Paris, France KENWOOD House, Dwight Road, Watford, Herts., WD18 9EB United Kingdom Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands Via G. Sirtori, 7/9 20129 Milano, Italy Bolivia, 239-08020 Barcelona, Spain (A.C.N.

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