Kenwood TM-731A Service Manual
144/430mhz fm dual bander
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Also See for TM-731A:
- Instruction manual (37 pages) ,
- Service manual (77 pages) ,
- Instruction manual (36 pages)
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©1989-7 PRINTED IN JAPAN
B51-8015-00(T)1349
Knob
(K29-3111-04) x3
Metalt
b
(Top)
:
*
etallic cabinet
(Top.
wecpnen®" (A01-1076-02)
Knob
(K29-3111-04) x3
Panel ass'y*
(A20-)
Knob (SQ)
{K29-31 16-04)
Knob (AF)
(K29-3115-04)
Panel*
Knob (Main)
(K29-3060-04)
Knob
{K29-3112-04) x5
Knob (Up/Down}
Knob (F)
Knob (Button)
Metallic cabinet (Bottom)
(K29-3114-04)x2
| (K28-3143-04}
(K27-3026-04) x 2
(AQ1-1048-02}
Knob (Sub-Encoder)
Knob (Button)
Knob (LOW)
(K29-3145-04)
(K27-3028-04)
(K29-3144-04)
*Refer to parts list on page 25.
Photo is TM-731A.
CONTENTS
CIRCUIT DESCRIPTION ..0......ccceeceecseeesteaseesnessteesen
CONTROL UNIT (X53-3250-XX) oes seceeeeseeseeeeerreees 66
DESCRIPTION OF ELEMENTS
_ _ 144 MHz TX-RX UNIT (X57-3400-XX) veeeseesseersereens 68
PARTS LIST... ccscccesesessesssvseesess
w25
430 MHz TX-RX UNIT (XB7-3390-XX) oo.eeceeeeeeees 70
EXPLODED VIEW .000.0...cccssseccessesensereesessesseeseeseesees
FINAL UNIT (430 MHz) (X45-3340-XX) oes
72
PACKING .......csccsscessesssesesseeeeeeseseessneesessneeseeseeneenes
FINAL UNIT (144 MHz) (X45-3340-XX) oe cseeeseesenne 73
ADJUSTMENT 20.0.0... ceeccccesseesseeneecsesestesaesesecsnsaneens 53
LEVEL DIAGRAM .........scscssssssesseseereeseeeeeseentieeetenss 74
TERMINAL FUNCTIONS ....0.....cscscccssessseesseesesteesees 60
SCHEMATIC DIAGRAM..........scssecsessceeeeesesseseeneeteaes 75
PC BOARD VIEW/SCHEMATIC DIAGRAM
BLOCK DIAGRAM .0.......ssccsesssssseestsseeneeeeeeeeeeteneonsees 79
430 MHz PLL UNIT (X58-3680-00) oo... eerste
65
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