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Sharp FV-1800 Service Manual page 5

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Signal generator
Receiver
Adjustment
NOTE
A
(C19, C11).
13 | SW2/|
Repeat steps 11 and 12 until no further improvement
can be made.
14
|SW3 | Same as step 2
Exactly
13MHz.
(400Hz,
| 13MHz
Same as step 1
Adjust the SW3 oscil-
30%, AM
modulated.)
lator core (L10), and
then adjust the SW3
antenna core (L17, L4).
15
|SW3 | Same as step 2
Exactly
23MHz
(400Hz,
| 23MHz
Same as step 1
Adjust the SW3 oscil-
30%, AM modulated.)
|
lator trimmer
(C13),
and
then
adjust
the
| SW3 antenna trimmer
|
|
|
(C18, C10).
Repeat steps 14 and 15 until no further improvement can be made.
.
FM ALIGNMENT
CHART
Signal generator
Receiver
Step
Connection
to receiver
Input signal frequency
Dial setting
Remarks
loop requires
less inductance.
or away to decrease inductance.
Adjustment
1 | Connect
signal
generator
Exactly 10.7MHz (400Hz, | Tuning
gang
fully
Connect VTVM
be-
Detune
T12
and
T13
Cunmodulated)
30%, FM modulated)
trimmer
(C9),
and
then
adjust the FM
RF
trim-
mer (C8, C7).
NOTE B
2) Adjust T13 for 0 volt.
4) Adjust T12 for balanced peaks.

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