HP9114b Test Light

[toml_12953]

My HP 9114b disk drive blew the fuse in the power supply. I ordered a replacement and, while waiting for it to arrive, I put a small piece of wire in its place. It worked fine. The fuse came today so I removed the wire and replaced the fuse. Now the Test light stays on after powerup which the manual says means the drive needs service. The drive still seems to function fine, INITIALIZING, reading and writing. What could be wrong?

[Dave Frederickson]

Run the diagnostics in the CE manual to isolate the problem.
http://www.hpmuseum.net/document.php?hwfile=2716

Also, if a formatted disc is installed when power is turned on, the drive will perform a more extensive power-on selftest.

[ctrclckws]

(06-27-2024 08:24 PM)toml_12953 Wrote:  My HP 9114b disk drive blew the fuse in the power supply. I ordered a replacement and, while waiting for it to arrive, I put a small piece of wire in its place. It worked fine.

Shorting the connection with a plain wire rather than the fuse may have allowed too much current to flow through the circuit, thus causing stress on some component within the drive.

Not an electrical / electronics engineer, but always leery of performing such a short.

[RPNerd]

(06-27-2024 08:24 PM)toml_12953 Wrote:  I ordered a replacement and, while waiting for it to arrive, I put a small piece of wire in its place.

That's never a good idea. If a fuse blows, it's for a reason. Of course, in some cases that reason is going to be simply because the fuse itself got tired, but you can't rely on that.

[toml_12953]

(07-07-2024 09:01 AM)RPNerd Wrote:  

(06-27-2024 08:24 PM)toml_12953 Wrote:  I ordered a replacement and, while waiting for it to arrive, I put a small piece of wire in its place.

That's never a good idea. If a fuse blows, it's for a reason. Of course, in some cases that reason is going to be simply because the fuse itself got tired, but you can't rely on that.

So I should take the penny out of my fusebox?

[RPNerd]

(07-07-2024 11:16 PM)toml_12953 Wrote:  So I should take the penny out of my fusebox?

And the chicken wire

[Dave Frederickson]

There's an urban legend about a guy that used a .22 cartridge for a fuse in his truck. As the story goes, the cartridge fired hitting the guy in the testicle causing him to veer off the road and hit a tree.

[toml_12953]

(07-08-2024 11:52 PM)Dave Frederickson Wrote:  There's an urban legend about a guy that used a .22 cartridge for a fuse in his truck. As the story goes, the cartridge fired hitting the guy in the testicle causing him to veer off the road and hit a tree.

Owww! Imagine explaining THAT to your insurance company!