5
ALIGNMENT AND ADJUSTMENT
ALIGNMENT AND TEST POINT
ALIGNMENT PREPARATION
Test Equipment Required
z
Oscilloscope
z
DC SSVM
z
FM signal generator
z
Frequency counter (800 MHz)
Notes:
z
Use non-metallic tuning tools.
z
The test equipment and receiver should be warmed up for at least 10 minutes before proceeding with alignment.
z
The signal level from the generator should be kept as low as possible to obtain a usable output.
z
To tune the frequency, press
TUNE
, frequency number including decimal point, then press
ENT
.
If you make a mistake, press
CL
to delete a single digit or hold
CL
about 2 seconds to start over.
Main PCB
TP1
TP6 TP4 TP5
T4
VR1
VR4
VR3
VR2
VR5
TC1
L2
4
L2
3
L26
L1
8
TP2
TP3
Summary of Contents for PRO-197
Page 15: ...PRINTED CIRCUIT BOARD Main PCB Top View 15 ...
Page 16: ...Bottom View 16 ...
Page 19: ...19 ...
Page 20: ...WIRING DIAGRAM 20 ...
Page 73: ......
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Page 75: ...RadioShack Corporation Fort Worth Texas 76102 08A08 ...