User's Manual

Set-up / Test Menu
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T - (T)est Menu
S - (S)et-up Menu
Q - (Q)uit
T - (T)ransmitter Tests
F - (F)ull Test
Q - (Q)uit
Transmitter Test Menu
M - Key up Transmitter - (M)arking
S - Key up Transmitter - (S)pacing
P - Key up Transmitter - (P)reamble
A - Key up Transmitter - (A)nalogue
Q - (Q)uit
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TAG 10827-1
RPE 673
TM 1184 Issue 1 AL1 (May 1997)Page A1 - 20
Figure 8: Test Menu Options
h) Power up the Serial Encoder, wait 3 seconds and, within a further 10 seconds,
press <Enter> on the Terminal keyboard; the Set-up / Test Menu should
appear on the VDU (see Figure 8).
j) Select (T)est Menu.
NOTE: The Transmitter Tests are used to key the Transmitter during
alignment, Full Test is for factory use only.
Setting up the Phase Lock Loop
46. Set up the Phase Lock Loop as follows:
a) Connect the oscilloscope to TP3.
b) Adjust the slug of L1 to give 5V ±0.2V DC at TP3.
Transmitter Alignment
47. To align the Transmitter carry out the following procedure:
a) Connect the oscilloscope to TP7.
b) Adjust RV3 to give 0V ±50mV DC at TP7.
c) Key up the Transmitter by selecting (A)nalogue.