Kenwood TK-2140 Service Manual

VHF FM TRANSCEIVER
TK-2140
SERVICE MANUAL
Knob (PTT)
(K29-9131-03)
Key top
(SW1,SW2)
(K29-9132-03)
Does not come with antenna.
Antenna is available as an option.
fineline6
GENERAL ................................................................................. 2
Antenna
(KRA-22:option)
SYSTEM SET-UP ..................................................................... 2
Knob (ENC)
OPERATING FEATURES ......................................................... 3
(K29-9134-03)
REALIGNMENT ........................................................................ 4
CIRCUIT DESCRIPTION .......................................................... 6
Knob (VOL)
(K29-9133-03)
SEMICONDUCTOR DATA ..................................................... 12
DESCRIPTION OF COMPONENTS ....................................... 13
PARTS LIST ............................................................................ 14
EXPLODED VIEW .................................................................. 21
PACKING ................................................................................ 22
ADJUSTMENT ........................................................................ 23
TERMINAL FUNCTION .......................................................... 32
PC BOARD VIEWS
SCHEMATIC DIAGRAM ......................................................... 43
BLOCK DIAGRAM .................................................................. 47
LEVEL DIAGRAM ................................................................... 49
KSC-25.................................................................................... 50
KNB-24L,KNB-25A,KNB-26N,KRA-22 .................................... 53
SPECIFICATIONS ............................................... BACK COVER
Cabinet assy
(A02-3653-04)
©
2001-10 PRINTED IN JAPAN
B51-8602-00 (S) 1022
CONTENTS
TX-RX UNIT (X57-6400-10) ................................................ 33