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CS
ADJUSTMENT
= ADJUSTMENTS
OF TS-515 RECEIVE SECTION
1.
Heterodyne crystal oscillator
(Refer to Fig. 4)
(1) Purpose:
To set heterodyne crystal in oscillation.
(2) Measuring instrument:
RF vacuum tube voltmeter
(3) Adjusting procedures:
1}
Connect the RF vacuum tube voltmeter to the
MP terminal located on the unit X47-0005-01
through
a capacitor of 0.01yF ceramic, more
than 500WV.
(Note]
Be careful
of the voltage of 300V
DC at the MP
terminals.
2)
Adjustment
of each
coil
of the
coil
pack
X44-0026-00
should be made
in accordance
with following table.
3)
Ascertain
that the device
is oscillating
at a
frequency of 28.5MHz and 29.1MHz.
4)
Disconnect the capacitor of 0.01yF.
L2(7)
L3 (14) L1 (3.5)
L3 (14)
\ /
13 (14)
L2(7)
——— a TA
L2(7)
L1 (3.5)
is! Ef bs
PL (3.5)
Ee
L5 (28)
ie: '4 Y
L5 (28)
|
te:
j e l ie
L4 (21)
wai
PF 4 (21)
L |_|
L5 (28)
\ \ X44.0028-00
X44-0026-00
14 (21) Ly 44.0027-00
Fig. 4
Q
VR1
S-Meter
22
YJ
SYNCHRONIZING
OUT PUT
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