1 . S-M ETER SENSITIVITY ADJ USTMENT
Place the transceiver in the receive mode and connect
a signal generator to the antenna terminal o f the trans
ceiver. Set the signal generator to
14 200
K Hz w ith
an output of 50
uV.
Tune the transceiver for maximum S-meter reading.
The S-meter should read S-9 + 2 5 d B . If S-meter
adjustment is required, adjust VR2 on PB- l l 8 3 B
t o obtain the reading.
When the transceiver is tuned to 1 4200 KHz the
1 00 kHz crystal calibrator output will be approxi
mately 5 0
µ
V or S-9 +25dB on the S-meter.
2.
NOISE BLAN KER ADJ USTMENT
Connect a signal generator to the antenna terminal
and tune the receiver to the signal.
Peak T 1 20 and TC l for a maximum S-meter
reading.
Connect VTVM between Tp (collector of QS)
and adjust T l 23 for a minimum VTVM reading.
T
RECT BOARD
(PB - 1 076 s)
TC3o
3.
VO X ADJ UST M ENT
\'OX
contro l s are l ocated on
P B 1 3 1 5A
T hese arc
\'Rl
\'O X
G a i n .
\I R 2
Delay.
V R 3
Relay Sensiti\ i t y and
\'R5 A nt i t r i p G a i n .
Set the operation s w i t c h t o the VOX position and t u rn
t h e
A F
G A i l\J and M I C G A I N controls fu l l y cou nter
cloc k w i se. Slow l y rotate the R E L A Y contro l ( V R :3 )
clock\,· ise u n t i l the rcla\' act i\·ates. then retu rn the con
t rol carefu l l y cou ntercloc k w i se until rel ay releases.
T h i s release point is the proper setting for the R EL A Y
scnsit i\· ity c on t ro l .
Set l\ I I C G A I N con t ro l t o t h e center of i t s tra\·el.
Speak into the m icrophone normally. adj u st VOX contro l
V R l t o j u st acti\'atc V O X relay.
Tune in a signa l and adj u st the AF G A I N control to
a com fortable l i stening level. Set the A N T I T R I P control
V R 5 to the m i n i m u m point that w i l l prevent the speaker
output from tripping the
VOX.
1 1 1
104
L33
Alignment Points-Bottom View
-- 2 2
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