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World of Ham Radio 1997
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WOHR97_AmSoft_(1997-02-01).iso
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ts440s49.doc
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1997-02-01
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39 lines
TS440S.49
These next tests check the outputs of the 8255 parallel port interfaces,
which select several internal functions.
37 (IC2) port A all lines high and beep
38 (IC2) port A all lines low
39 (IC2) port B all lines high
40 (IC2) port B all lines low
41 (IC2) port C0-C3 high, C4-C7 low, M.SCR 1MHz and F.LOCK ON
42 (IC2) port C0-C3 low, C4-C7 high
43 (IC53) port C all lines high
44 (IC53) port C all lines low
The following tests display busy and scan line status using the rightmost eight
digits of the display. You will push buttons to cause the digit to change from
a 1 to a 0 indicating that the associated button has been pushed. AT (ATUNE)
also requires AUTO. Any TX means PTT, SEND, AT or VOX ON with sound.
test posn8 posn7 posn6 posn5 posn4 posn3 posn2 posn1
---- ----- ----- ----- ----- ----- ----- ----- -----
45 LOCK AT Mic UP Mic DN Any TX VS1
46 audible "SIMPLEX" no button
47 (key scanner)
48 1 6 V/M VOICE
49 2 7 M>V RIT A/B
50 3 8 SCAN XIT SPLIT
51 4 9 M.IN T-Fset A=B dip3 dip4 dip5
52 5 0 CLEAR 1MHz dip1 dip2 dip6 dip7
53 ENTER DOWN UP dip8 dip9 dip10
The digits 0-9 are on the front panel keyboard. Dip2-dip10 are the
segments of S50, the SSB frequency response dipswitch of the
control unit printed circuit board. Changing not recommended.
54 not used
55 not used
56 END