Kenwood TM-2550A Service Manual

M-2550A/E,TM-25300 i!
@CcS) CEG AtSET SCHL aoc.
Photo.is TM-2550A.
CONTENTS
CIRCUIT DESCRIPTION
.. 0.0... 2... e eee eee eee
2
TERMINAL FUNCTIONS
..........
2222s 37
PARTS LIST ... 2.0... 0 eee ee ere
ees 16
BLOCK DIAGRAM (TM-2550A, TM-2530A)
......- 38
DISASSEMBLY
......-..
250
e eee eee eee 30
SCHEMATIC DIAGRAM (TM-2550A, TM-2530A)
.. 39
ADJUSTMENT
1.2... 2c
eee eee
32
SCHEMATIC DIAGRAM (TM-2550E) .......-.-.
40
PC BOARD VIEWS
BLOCK DIAGRAM (TM-2550E).......-----4-:
4)
MIC AMP, (X59-1000-10)
.. 2...
ee ee eee eee 36
LEVEL DIAGRAM ......... 600002
eee eee
42
MIC AMP., S-METER (X59-1010-10)
.........
36
MU-1 (MODEM UNIT)
......-.-00
222s 42
ALERT, VACANT CH. (X59-1020-10)
........
36
MB-10 (MOBILE MOUNT) .........
22200525
43
CENTER DETECTOR
(X59-1030-10)
.........
36
JU-7 (TONE UNIT) 2.6.2
ee
ee eee 44
SQUELCH CONTROL (X59-1040-10) .........
36
PG-2K (DC POWER CABLE)
.....-.-.--+20005
45
COMPOUND UNIT (X60-1280-XX)
......006-
36
VS-1 (VOICE SYNTHESIZER)... .....--22
5055 46
CONTROL UNIT (X53-1440- XX)... 6 eee
36
PACKING (TM-2550A/E, TM-2530A)
......-----
47
PLL UNIT (X50-2030- XX} oe ee eee 36 SPECIFICATIONS
...........-----
BACK COVER
DISPLAY UNIT (X54-1860-10) .........24-. 37
FINAL UNIT (X45-1440-XX) .. 2. eee '37