Kenwood TM-321A Service Manual page 32
220mhz fm transceiver
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Also See for TM-321A:
- Instruction manual (60 pages) ,
- Instruction manual (39 pages) ,
- Instruction manual (39 pages)
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TM-32
ADJUSTMENT
Measurement
Adjustment
Item
Condition
Test
Specification/Remarks
equipment
Unit
Terminal
Unit
Part
Method
5,
Sensitivity
1)
FREQ.
:
222,520
AF
VM
Rear
SP
Check
SINAD
12dB
or more.
Oscillo-
panel
(18)
SSG output
:
-9dBu
scope
2)
FREQ.
:
220,020
82
3)
FREQ.
:
224.960
dummy
toad
6. S-meter
1)
FREQ.
:
222.520
LCD
TX-RX
VR1
Set
the
RF
scale to
(S-meter)
(4D)
reads
2digit'.
SSG
output
:
-6dBu
MOD
:
OFF
2) SSG output
:
16dBu
All
digits
tight.
3)
SSG
:
OFF
S-meter lights
OFF.
TRANSMITTER SYSTEM ADJUSTMENT
Measurement
Adjustment
item
Condition
Test
Specification/Remarks
equipment
Unit
Terminal
Unit
Part
Method
1-1,
RF
1)
FREQ.
:
222.500
Power
Rear
ANT
TX-RX
TC2
MAX
29W or more.
output
meter
Panel
(1E)
(3A)
TC3
VR6 (TX-RX
unit)
:
Fully
(DC
pow.
clockwise (CW)
er
supply
(2B)
VR1
(Final unit)
:
Center
galvo
Transmit.
meter)
ON
AiR
LCD
indicated.
2)
FREQ.
:
224.980
VR6
28W
+4W,
ess
than
6.5A.
(3B)
28W,
less
than
6.5A.
Transmit.
3)
FREQ.
:
220.000
Check
28W or more,
less
than
6.5A.
Transmit.
4)
FREQ,
:
224.980
Transmit.
1-2,
LOW
1)
FREQ.
:
222,500
TX-RX
VR7
5W
+2W,
less
than
3.5A.5A
Power
(3B)
LOW SW
:
ON
Transmit.
2.
RF
meter
1)
FREQ.
:
222.500
LCD
TX-RX VR4
Set to
the
RF
scale
(RF
(3B)
reads
6digits'.
Transmit.
meter)
2)
LOW SW
:
OFF
All
digits light.
Transmit.
3.
DEV.
1)
FREQ.
:
222.500
Linear
Rear
ANT
TX-RX VR3
t4,5kHz
+200Hz
detector
Panel
(1E)
(3C)
AG
:
1kHz, 50mV
Modula-
@
MS-57A/61
A
(Anritsu)
tion
HPS
:
OFF
analyzer
@
4101
(WAVETEK)
LPF
:
20kHz.
Power
Filter 25kHz/15kHz
De-emphasis
:
OFF
De-emphasis
:
OFF
meter
TX-RX VR2
£3kHz
+200Hz
2)
AG:
1kHz, 5mV
(3C)
TM-32
ADJUSTMENT
Measurement
Adjustment
Item
Condition
Test
Specification/Remarks
equipment
Unit
Terminal
Unit
Part
Method
5,
Sensitivity
1)
FREQ.
:
222,520
AF
VM
Rear
SP
Check
SINAD
12dB
or more.
Oscillo-
panel
(18)
SSG output
:
-9dBu
scope
2)
FREQ.
:
220,020
82
3)
FREQ.
:
224.960
dummy
toad
6. S-meter
1)
FREQ.
:
222.520
LCD
TX-RX
VR1
Set
the
RF
scale to
(S-meter)
(4D)
reads
2digit'.
SSG
output
:
-6dBu
MOD
:
OFF
2) SSG output
:
16dBu
All
digits
tight.
3)
SSG
:
OFF
S-meter lights
OFF.
TRANSMITTER SYSTEM ADJUSTMENT
Measurement
Adjustment
item
Condition
Test
Specification/Remarks
equipment
Unit
Terminal
Unit
Part
Method
1-1,
RF
1)
FREQ.
:
222.500
Power
Rear
ANT
TX-RX
TC2
MAX
29W or more.
output
meter
Panel
(1E)
(3A)
TC3
VR6 (TX-RX
unit)
:
Fully
(DC
pow.
clockwise (CW)
er
supply
(2B)
VR1
(Final unit)
:
Center
galvo
Transmit.
meter)
ON
AiR
LCD
indicated.
2)
FREQ.
:
224.980
VR6
28W
+4W,
ess
than
6.5A.
(3B)
28W,
less
than
6.5A.
Transmit.
3)
FREQ.
:
220.000
Check
28W or more,
less
than
6.5A.
Transmit.
4)
FREQ,
:
224.980
Transmit.
1-2,
LOW
1)
FREQ.
:
222,500
TX-RX
VR7
5W
+2W,
less
than
3.5A.5A
Power
(3B)
LOW SW
:
ON
Transmit.
2.
RF
meter
1)
FREQ.
:
222.500
LCD
TX-RX VR4
Set to
the
RF
scale
(RF
(3B)
reads
6digits'.
Transmit.
meter)
2)
LOW SW
:
OFF
All
digits light.
Transmit.
3.
DEV.
1)
FREQ.
:
222.500
Linear
Rear
ANT
TX-RX VR3
t4,5kHz
+200Hz
detector
Panel
(1E)
(3C)
AG
:
1kHz, 50mV
Modula-
@
MS-57A/61
A
(Anritsu)
tion
HPS
:
OFF
analyzer
@
4101
(WAVETEK)
LPF
:
20kHz.
Power
Filter 25kHz/15kHz
De-emphasis
:
OFF
De-emphasis
:
OFF
meter
TX-RX VR2
£3kHz
+200Hz
2)
AG:
1kHz, 5mV
(3C)
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