Kenwood TM-D700A Service Manual

TM-
DESCRIPTION OF COMPONENTS
(TM-D700E ONLY)
Ref No.| — Application/Function _| Operation/Condition/Compatibility Ref No.; — Application/Function _| Operation/Conditior/Compatibility
Di Reference oscillation A band D502 =| RF switch SUB VHF
circuit modulation D503 | RF switch UHF
D2 Reference oscillation A band D505 RF switch UHF
circuit modulation D507 | RF switch SUB UHF
D3
LD
waveform
rectificatior]
A
band
D509
|
RF
switch
UHF
D4 Step-down Charge pump D510 | RF switch UHF
DS
Quick
charge
A
band
VCO
ripple
filter
D600
__|
Reverse
voltage
prevention|
TXD
voltage
detection
D6
OR
circuit
RM14/RM22
D601
_|
Voltage
stabilization
TXD
voltage
detection
D7
LO
switch
LO
Doubling
circuit
switch
D602
__|
Reverse
flow
prevention;
Reset
switch
detection
i)
LO
switch
LO
Doubling
circuit
switch
D604
__|
Voltage
detection
System
down
detection
O11
Signal
switch
VHF
TX
D605
_|
Reverse
flow
prevention|
M5C
Di2
Drive
circuit
bias
D606__|
Reverse
flow
prevention|
Backup
battery
charging
D13
Drive
circuit
bias
D607__|
Reverse
flow
prevention|
Backup
battery
charging
D1i4
ANT
switch
VHF
TX
D700
|
Bias
PR9
D1i5
ANT
switch
VHF
TX
D701
Bias
PRI
D16
ANT
switch
VHF
TX
D702
__|
Over-voltage
prevention|
PKD
D17
ANT
switch
VHF
TX
D703
__|
Over-voltage
prevention
|
PKD
D18
Transmission
output
detection
|
VHF
D800
Reverse
flow
prevention}
MIC
8V
Di9 Transmission output detection | VHF D801 Reverse flow prevention
Di00 =| Change switch VHF Narrow/wide D803 | Voltage drop
(TM-D700E ONLY) D900 _ | Voltage OR T8A
D101 Change switch VHF Narrow/wide D902 __| Power supply reference voltage| PB
(TM-D700E ONLY) D903 | Over-voltage detection | PB
D102.
|AGC
D904
__|
Reverse
connection
prevention;
DC
IN
D200
RF
switch
VHF
D905
__|
Reverse
connection
prevention
|
DC
IN
D201 RF switch SUB UHF TH1 Temperature detection
0202 _| Helical tuning VHF
D203 __| Filter tuning SUB UHF PANEL UNIT (X54-3290-00)
D204 | RF switch
D205
_|
Helical
tuning
VHE
Ref
No.|
—
ApplicationFunction
|
Operatior/ConditionCompatibility
0206 Helical tuning VHF iC1 Serial transmission buffer
0207 _| RF switch VHF IC2 Serial transmission buffer
D208 | RF switch IC3 AVR with reset function
D209 __| RF switch SUB UHF IC4 Control microcomputer
D210 _| Over-voltage prevention | VHF IC5 ROM
D211 Over-voltage prevention | VHF Qi Power switch
D213 | Voltage OR RM14/RS14 Q2-4,6, Dimmer
D214 __‘| Voltage OR RM14/RS14 7,9,10
D216 __| Band pass tuning VHF filter D1 Reverse flow prevention
D2i7__| OR circuit RM22 D2 Reset circuit
D300 Reference oscillation B band D3-23 | Over-voltage prevention
circuit modulation (Surge elimination)
D301 Reference oscillation B band D24-30 | Key illumination
circuit modulation
D302__| LD waveform rectification B band TNC UNIT (X52-3310-00)
D303 __| Step-down Charge pump — - - — —
D304 | Quick charge B band VCO ripple filter Ref No.| — Application/Function _| Operation/ConditionCoompatibility
D305 | RF switch UHF LO IC1 Real-time clock
D306 | RF switch UHF TX IC2 TNC ASIC
D307 | RF switch UHF LO IC3 TNC CPU
D309 | RF switch UHF LO IC4 Comparator
D310 | RF switch UHF LO IC5 SRAM IC
D312 | UHF Drive circuit bias = | UHF IC6 Comparator
D313 __| Over-voltage prevention C7 AF amp
D314__ | TX RF switch UHF TX IC8 RS-232C driver
D315 __| Over-voltage prevention IC9 Chip select inverter
(D316 | ANT switch UHF TX Q1 Power switch
D317 _| Transmission output detection | UHF Q3 Reset
D318 __| Transmission output detection | UHF Q4 Filter
D400 =| Change switch UHF Narrow/wide Q5-7 AF amp
(TM-D700E ONLY) D1,2 Reverse flow prevention
D401 =| Change switch UHF Narrow/wide D3 Backup battery reverse
flow prevention
D500
RF switch
D700A/E

Kenwood TM-D700A Specifications

General

Brand	Kenwood
Model	TM-D700A
Category	Transceiver
Language	English