Kenwood TR-7730 Service Manual

YKENWOOD
SERVICE MANUAL
R-7730
VHF FM TRANSCEIVER
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TR-7730
ON AiR RPT
56
CONTENTS
SPECIFICATIONS ........ 0.2... 00 eee eee 2 DISPLAY UNIT (X54-1520-11) 2.2... ee ee 12
CIRCUIT DESCRIPTION .................00. 2 M, MR BOARD (J25-2757-14) 2.0... ee ee 12
PC BOARDS M.S, TONE BOARD (J25-2757-14) .. 0.0.00. 06. 12
RX.TX UNIT (X44- 1450-10) (K, M TYPE). ...... 8 SCAN, HOLD BOARD (J25-2758-14) ......... 12
RX.TX UNIT (X44-1450-51, -61) (T, WTYPE).... 9 PARTS LIST 2... ee eee 13
FINAL UNIT (X45-1190-10) 2.2... eee eee 10 DISASSEMBLY ... 0.0.0.0... 0.0.0 eee 18
PLL UNIT (X50-1750-10) 2.2.2.2 eee. 10 LEVEL DIAGRAM......... 00.20.2202 eee 20
CONTROL UNIT (X53-1230-10, -61) ......... 11 ADJUSTMENTS ©. 2... 0... cee ee nee 21
M.CH BOARD (J25-2715-04) .. 0.2... 2. eee 11 PACKING ©... 6. ee eee 28
RPT BOARD (J25-2744-04) 1... .........0.. 11 SCHEMATIC DIAGRAM (K, MTYPE)........ ... 29
SCHMITT BOARD (J25-2755-14) ............ 11 SCHEMATIC DIAGRAM (T, WTYPE)........... 30
10K/5K or 25K/5K (J25-2756-04)
........... 11 REFERENCE DATA
.........
cee ee ee 31
H|/LOW BOARD (J25-2756-04) ........0...., 11
BLOCK DIAGRAM ............... BACK COVER