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TS440S.48
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1992-09-15
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60 lines
TS440.48
TS440s Self Test
Extracted from 26 May 86 letter of Brian Kantor, WB6CYT
Ammended 19 Mar 91 by GRThompson, N6SWC
Self-Test: You can run a rather complete test of the control logic by
the built-in "semi-self-test", a series of 56 routines. To run this,
turn the unit on whilst holding the AM and T-F SET switches pushed in.
It changes to the next test when you turn the VFO knob clockwise. Turn
the power OFF to reset the unit.
Test What it does
---- ---------------------------------------------------
0 all positions in display light
1 all segments in display dark
2 all positions in display light
3 all segments in display dark
4 rightmost position 8 and SUB lighted
5 next position :8 and XIT lighted
6 next position 8 and RIT lighted
7 next position -8 lighted
8 next position 8. and STEP lighted
9 next position 8. and * lighted
10 next position 8. and SPLIT lighted
11 next position 8. and B lighted
12 next position 8. and VFO lighted
13 next position 8. and A lighted
14 next position 8. and SCAN lighted
15 next position 8. lighted
16 leftmost position 8 and M.CH lighted
17 tone on
18 tone off
19 all mode LEDs and white noise ON
21 all mode LEDs and white noise OFF
21 ON AIR ON
22 ON AIR OFF
The following tests change internal signals. They are most useful if
you are trying to trace the circuits controlled by these signals.
You'll need a service manual (or at least a schematic) to make real
sense of these.
23 BAND select - all lines high
24 BAND select - all lines low
25 PD select - all lines high
26 PD select - all lines low
27 ENF select - all lines high
28 ENF select - all lines low
29 ENP select - all lines high
30 ENP select - all lines low
31 RES select - all lines high
32 RES select - all lines low
33 CO select - all lines high
34 CO select - all lines low
35 AX select - all lines high
36 AX select - all lines low
CONTINUED IN TS440S.49