Kenwood AT-230 Service Manual

Sweep generator OscilloscoPe
0 0 000 0
OUT H
i
Fig.
(10)
(13)
Remarks
NOTE: L27
should be
ad-
justed whlle
it is turned
counterclock-
wise.
Mon~tor hum
-
9
BPF-A, (1 1) BPF-6, (1 2) BPF-C
VFO MIX SPURIOUS
Specif~cat~on
--
MIC input pro-
viding the
same ALC meter
reading:
10mVk3 dB
Less than
8mV/8fl
Osc~lloscope AF VTVM SSG
Caution:
NEVER transmit when
SSG is connected to the
Item
33. Monitor
level adjust-
ment
ANT terminal.
Condition
Set the PROC to OFF and
the COM P LEVEL control
to maximum. Set the AG
output to 10
mV
Adjust the MIC GAIN
control until the meter
indicates the maximum
on-scale ALC reading.
Set the PROC to ON.
STBY R EC
BAND 14
VFO 175
AG C FAST
C AL ON
Set the marker level to
0.63V with the AF GAlN
Adjustment
Method
Adjust until
the same meter
reading is
obtained (MAX
ALC on-scale).
Monitor output
0.63V/8f2.
unit
IF
S~ectrum analyzer
control.
Connect a power meter
to the ANT terminal.
SG SW ON
ST BY SEND
Tune up
MODE
US6
Connect the AG (1 kHz.
10 mV) to the MIC jack.
METER ALC
Deflect ALC meter
by
MIC GAlN control.
MONl ON
Disconnect AG.
AF
GAIN MAX.
MONl OFF,
STBY REC
Parts
L27
VR8
,
EXT.
Sf'
Test
equipment
Oscillo-
scope
RF power meter
(13) VFO MIX SUPRIOUS
-------------
Measurement
~n~t
Rear
panel
b
Fig. 10 (27) TX SPURIOUS
Fig. 11 8P DIN
connector
Fig. 12 (1 5) IF AMP, (1 6) COIL PACK, (20) IF TRAP,

Kenwood AT-230 Specifications

General

Brand	Kenwood
Model	AT-230
Category	Tuner
Language	English