C148GTL DX ALIGNMENT PROCEDURE
STEP PRESET ТО ADJUSTMENT
REMARKS
6 Same as Step 1
VRll
Set the SG output level to lOOuV with No
modulation. Then adjust VRl for S-9 read
ing on radio's meter.
7
Same as step 1
except:
Mode: FM
L9 and L10
Set the SG to lOuV with No-Modulation.
Connect Oscilloscope to lead of R279, and
adjust ooils for maximum reading(Pin 1&2
of IC 2).
8
Same as Step 7 L U
Set the SG to ImV with 1.5kHz déviation
of 1kHz. Adjust Lll for maximum sign-wave
output on Oscilloscope.
ALIQMENT OF TRANSMITTER PORTION.
1. Test Equipment Required
a) DC Arrmeter.
b) Power meter.
c) RF VTVM
d) Oscilloscope.
e) Deviation Meter.
f) 50 ohm Dummy Load.
g) Frequency counter.
2. Alignment Precedure
STEP
PRESET TO
ADJUSTMENT
REMARKS
1 CH : 19
TX Mode
Mode : USB
Mic Gain: Min.
VR10
Remove PC-843 (PCB) and connect Arrmeter
to TP8 (+) and TP7 (-). Adjust for 8mA
reading.
2
Same as Step 1
VR9
Connect DC Anmeter to TP8 (+) and TP6 (-)
and adjust for 100mA reading.
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