Kenwood TM-631A Service Manual page 54

TM-631A
ADJUSTMENT
220
MHz Transmission Adjustments
Measurement
Adjustment
Item
Condition
Test
equip-
Specification/Remarks
ment Unit Terminal Unit Part Method
1-1. Transmis- FREQ:
222.500
MHz
Power
Rear
ANT1
TX-RX VRS
POWER MAX. 32 W
or more
sion out- HI/LO switch
:
HI
meter panel
(220) (220)
put (HI
Make transmission.
Ammeter
28
W
28
W+1/W,
less than
7A
power) (Use
DC
power
1-2. Transmis-
FREQ:
222.500
MHz
TX-RX
VR7
5W
Check
5
W
+0.5
W
HI/LO
switch
:
LO
supply
(220)
sion out-
having
put
(LO
("LOW"
is
shown
on the display)
ammeter)
power)
FREQ:
220.000
MHz
24~32
W, less than
7.5 A
224.980
MHz
HI/LO
switch
:
HI
Make transmission.
2.
RF meter FREQ: 222.500 MHz RF
digit light
up
HI/LO
SW:LO
Make transmission.
3.
DEV
FREQ:
222.500
MHz
Linear
Rear
ANT TX-RX VR3
+
4.6
kHz (either +
or
+200
Hz
AG
1
kHz, 60 mV
detector
(220)
value which
is There should
be no
abnormali-
Make transmission
oscillo-
larger)
ty in
detection waveforms.
scope
Direct condition
Divider
LPF
:
OFF
HPF
:
20 kHz
Deemphasis
:
OFF
3-2. MIC GAIN AG
1
kHz 6 mV
+2.4
kHz~
+3.6
kHz
Make transmission
4,
Protection
FREQ: 222.500
MHz
fAmmeter
TX-RX VR4
40
A
+0.2A
ANT
opened
(220)
Make transmission
5. TONE FREQ:
222.500
MHz
Direct
Rear
ANT
f:
88~89
MHz
LPF: 50 MHz
Make transmission
DEV.:
+0.6~1
kHz HPF: 3 kHz
Dummy
panel
load (50
Linear detector condition
Deemphasis: OFF
ohms)
Oscillo-
scope
53
TM-631A
ADJUSTMENT
220
MHz Transmission Adjustments
Measurement
Adjustment
Item
Condition
Test
equip-
Specification/Remarks
ment Unit Terminal Unit Part Method
1-1. Transmis- FREQ:
222.500
MHz
Power
Rear
ANT1
TX-RX VRS
POWER MAX. 32 W
or more
sion out- HI/LO switch
:
HI
meter panel
(220) (220)
put (HI
Make transmission.
Ammeter
28
W
28
W+1/W,
less than
7A
power) (Use
DC
power
1-2. Transmis-
FREQ:
222.500
MHz
TX-RX
VR7
5W
Check
5
W
+0.5
W
HI/LO
switch
:
LO
supply
(220)
sion out-
having
put
(LO
("LOW"
is
shown
on the display)
ammeter)
power)
FREQ:
220.000
MHz
24~32
W, less than
7.5 A
224.980
MHz
HI/LO
switch
:
HI
Make transmission.
2.
RF meter FREQ: 222.500 MHz RF
digit light
up
HI/LO
SW:LO
Make transmission.
3.
DEV
FREQ:
222.500
MHz
Linear
Rear
ANT TX-RX VR3
+
4.6
kHz (either +
or
+200
Hz
AG
1
kHz, 60 mV
detector
(220)
value which
is There should
be no
abnormali-
Make transmission
oscillo-
larger)
ty in
detection waveforms.
scope
Direct condition
Divider
LPF
:
OFF
HPF
:
20 kHz
Deemphasis
:
OFF
3-2. MIC GAIN AG
1
kHz 6 mV
+2.4
kHz~
+3.6
kHz
Make transmission
4,
Protection
FREQ: 222.500
MHz
fAmmeter
TX-RX VR4
40
A
+0.2A
ANT
opened
(220)
Make transmission
5. TONE FREQ:
222.500
MHz
Direct
Rear
ANT
f:
88~89
MHz
LPF: 50 MHz
Make transmission
DEV.:
+0.6~1
kHz HPF: 3 kHz
Dummy
panel
load (50
Linear detector condition
Deemphasis: OFF
ohms)
Oscillo-
scope
53