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Page Title:
Table 5-1. Troubleshooting-continued |
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 TM 11-6625-3024-14/EE641-AC-MMA-010/E154 SYSEX/TO 33AA50-5-1-1
Table 5-1. Troubleshooting (Continued)
Symptom
Probable Cause
Remedy
Replace fuse 1A2F1 on
20. No power to
a. Transport 28 Vdc
Transport.
power fuse is
Output Connector Assembly
blown.
(see paragraph 5-23.)
b. Current Sense
Install Current Sense Loop
Loop not installed.
or ammeter.
Lamp fuse is blown.
21. 28 Vdc lamps on all
Replace fuse 1A2F2 on
circuit cards will
Output Connector Assembly
not light.
(see paragraph 5-23).
Check Transport signal/
22. EOT status light not
a. No status signal
control cable 1000-564.
lit when Transport
from Transport.
Replace Circuit Card 1.
is at END-OF-TAPE.
b. Status logic circuit
is defective.
c. Defective EOT lamp.
Replace Circuit Card 1.
Replace Circuit Card 1.
a. Defective EOT lamp.
23. BOT status light not lit
Replace Circuit Card 1.
b. Defective status
when Transport is at
logic circuit.
BEGINNING-OF-TAPE.
c. No status signal
Check Transport signal/
from Transport.
control cable 1000-564.
Replace Circuit Card 1.
a. Defective IN
24. IN REWIND status
REWIND lamp.
light not lit
Replace Circuit Card 1.
b. Defective STATUS
when Transport
logic circuit.
is rewinding.
Check Transport signal/
c. No status signal
control cable 1000-564.
from Transport.
Replace Circuit Card 1.
a. Defective READY
25. READY status light
lamp.
not lit.
Replace Circuit Card 1.
b. Defective status
logic circuit.
c. No status signal
Check Transport signal/
from Transport.
control cable 1000-564.
Replace Circuit Card 1.
a. Defective SELECTED
26. SELECTED status
status lamp.
light not lit.
Replace Circuit Card 1.
b. Defective status
logic circuit.
c. No status signal
Check Transport signal/
from Transport.
control cable 1000-564.
5-5
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