TK-90
2
CONTENTS /
GENERAL ................................................... 3
SYSTEM SET-UP ....................................... 4
REALIGNMENT .......................................... 5
INSTALLATION ........................................ 13
DISASSEMBLY FOR REPAIR .................. 18
CIRCUIT DESCRIPTION ........................... 19
COMPONENTS DESCRIPTION ............... 32
SEMICONDUCTOR DATA ....................... 41
PARTS LIST .............................................. 48
EXPLODED VIEW ..................................... 66
PACKING .................................................. 67
ADJUSTMENT ......................................... 68
TERMINAL FUNCTION ............................ 89
PC BOARD
FINAL UNIT (X45-3780-20) .................. 94
DISPLAY UNIT (X54-3560-20) ............. 98
TX-RX UNIT (X57-7210-20) ............... 100
INTERCONNECTION DIAGRAM ........... 104
SCHEMATIC DIAGRAM
FINAL UNIT (X45-3780-20) ................ 106
DISPLAY UNIT (X54-3560-20) ........... 108
TX-RX UNIT (X57-7210-20) ............... 110
BLOCK DIAGRAM .................................. 114
LEVEL DIAGRAM ................................... 116
KPE-2 (ALE UNIT) .................................. 118
SPECIFICATIONS ................................... 130
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK P
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK Q
!
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK R
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK NP
!
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK NU
!
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK NV
!
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK PO
!"
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK QN
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK QU
!"
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK SS
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK ST
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK SU
!
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK UV
m`
cfk^i
=EuQRJPTUMJOMF KKKKKKKKKKKKKKKKKKKKKKKKK VQ
afpmi^v
=EuRQJPRSMJOMF KKKKKKKKKKKKKKKKKKK VU
quJou
=EuRTJTONMJOMF KKKKKKKKKKKKKKKKKKKKKKK NMM
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK NMQ
cfk^i
=EuQRJPTUMJOMF KKKKKKKKKKKKKKKKKKKKKKK NMS
afpmi^v
=EuRQJPRSMJOMF KKKKKKKKKKKKKKKKK NMU
quJou
=EuRTJTONMJOMF KKKKKKKKKKKKKKKKKKKKKKKK NNM
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK NNQ
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK NNS
hmbJO=E
!"#$
F KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK NNU
KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK NPN
Document Copyrights
Copyright 2007 by Kenwood Corporation. All rights re-
served.
No part of this manual may be reproduced, translated, dis-
tributed, or transmitted in any form or by any means, elec-
tronic, 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.
!"#
hÉåïççÇ=`çêéçê~íáçå=
!
OMMT
!"#$
=hÉåïççÇ=
!"#$%&'()*+,-.&/0
!"#$ !%#&'()*+,*-.*/0$12%#
!" #$%&'()*+,-.#/
!
hÉåïççÇ=
!"#$%&'()*+,-./0123
!"#$%&'()*(+, -./0123456
!"#$%&'
hÉåïççÇ=
!"#$%&'()*
!"#$%&'()*"+,-