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Sharp DV-1600 Series User Manual

Sharp DV-1600 Series
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Step
1.
Adjust point
Tuner IFT coil:
ADJUSTMENT
PIF/AFT/SIF
ADJUSTMENT
Connection
(1)
Receive
10
ch.
signal.
(If
reception
of
10
ch.
signal
is
not
satisfied,
receive
VIII band
signal
instead
.)
(2) Connect
sweep
generator to the
tuner’s
test
point.
(Use
a
75
ohm
DC
cut probe.)
To sweep
generator
1
OOOpF
dh
Figure 1.
Sweep
output
level:
80
dB
Note:
The
sweep
generator’s
earth
lead
must
be
grounded near
the test point.
(3)
Connect
reponse
lead
(low
impedance probe with detector)
to
TP201
(collector
of
Q201).
To oscil-
Figure 3.
68f2
(4)
Voltage
setting
of
PIF
AGC:
Apply
DC
3.9V
to
pin
@
of
PIF
IC
(X201).
(5)
Voltage
setting
of
RF
AGC:
Apply
DC
4V
to tuner
AGC.
(6)
Short
TP601
and
TP602
(to
stop
sync
separator circuit).
Procedure
(1)
Adjust the tuner IF
coil
to
have
the
waveform
as
shown
in
Fig.
2
P4.43MHz
36.875MHz
Figure 2.
*Picture
signal
and
carrier
signal
must
have
the
same
level.
3

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Sharp DV-1600 Series Specifications

General IconGeneral
BrandSharp
ModelDV-1600 Series
CategoryTV
LanguageEnglish

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