Technical data

Problem Possible Cause Corrective Action
Four lights blinking. Failed self-test or
detected hard error.
Push Unload button. If lights continue
blinking, call your Digital service
representative.
Green light on; yellow
light not lit.
Cartridge load error. Try another cartridge. If problem
persists, call your Digital service
representative.
Cartridge stuck in drive;
tape on takeup reel.
Hard drive error. Press Unload button. If problem
persists, call your Digital service
representative.
Cartridge does not load. Mispositioned leader. Try another cartridge.
2.4 TK50 Tape Drive Problems
Problem Possible Cause Corrective Action
Red light blinking; no
unusual sounds.
Problem in drive. Press Load/Unload button four times.
If problem persists, do not use drive
or remove cartridge. Call your Digital
service representative.
Red light blinking;
whirring sound.
Tape leader not coupled
properly.
Turn off system. Do not remove
cartridge. Call your Digital service
representative.
Cartridge release handle
does not move.
Self-test in progress. Press Unload button and wait for red
light to go out and green light to
remain on. Then try again.
Drive active. Press Unload button and wait for red
light to go out and green light to
remain on. Then try again.
Cartridge release handle
does not lock.
Cartridge not inserted
properly.
Reinsert cartridge. If problem persists,
call your Digital service representative.
Cartridge does not un-
load.
Load/Unload button in
load (in) position.
Press button to unload (out) position.
Wait for red light to go out and green
light to remain on before trying to
remove cartridge.
Load/Unload button not
working properly.
Press button to load (in) position, wait
a few seconds, then press button to
unload (out) position. After red light
goes off and green light comes on,
move cartridge release handle. If
problem persists, call your Digital
service representative.
2–4 VAX 4000 Model 200 Troubleshooting and Diagnostics