TB 9-6625-2138-24
(1) Set TI as listed in (a) through (f) below:
PATTERN to 63.
(a)
SINGLE/CYCLE PRINTER to SINGLE.
(b)
OFF/ XMIT ERRORS to XMIT ERRORS.
(c)
EVENT to BIT ERROR.
(d)
EXPONENT RANGE to CONT.
(e)
DTR/RTS/BACKWARD CHANNEL to DTR.
(f)
(2) Remove top cover and set COUNT D/O COUNT C/L switch to COUNT C/L.
(3) TI indications will be as listed in (a) through (h) below:
OUT OF LOCK on.
(a)
LOSS OF DATA on.
(b)
DATA SET READY off.
(c)
CLEAR TO SEND off.
(d)
TEST ON off.
(e)
BIT ERROR on.
(f)
CARR LOSS off.
(g)
BLOCK ERROR (RCV DATA) on.
(h)
NOTE
If block error light is not lit set loop switch to loop and back to off.
(4) Set LINE switch to OFF.
(5) Short pins on A15J1 connector on rear panel (DATA INTERFACE board
RS232 or RS232C) as listed in (a) through (c) below:
(a) Pin 4 to pin 5.
(b) Pin 6 to pin 20.
(c) Pin 8 to pin 19.
(6) Set LINE switch to ON. TI indications will be as listed in (a) through (h) below.
OUT of LOCK on.
(a)
LOSS OF DATA on.
(b)
DATA SET READY on.
(c)
CLEAR TO SEND off.
(d)
TEST ON off.
(e)
BIT ERROR on.
(f)
CARR LOSS on.
(g)
CLK SLIP off.
(h)
(7) Set DTR/RTS/BACKWARD CHANNEL switch to RTS. CLEAR TO SEND
indicator will be on.
(8) Set DTR/RTS/BACKWARD CHANNEL switch to BACKWARD CHANNEL.
CARR LOSS indicator will be off.
(9) Set LINE switch to OFF and remove shorts installed in (5) above.
(10) Set DTR/RTS/BACKWARD CHANNEL switch to DTR.
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