Madaracs
Well-known member
Red Alert: Star Trek Upright SOS Pfftfzzle Pffixed.
I'm in need of a little guidance.
I rebuilt my G80 PS and popped it into the unit four days ago. It worked fine for two days. Then yesterday I turned it on and I heard a fizzle, garbled sound and then nothing.
Now the main fuse keeps blowing.
I swapped out power supplies with another I had standing by that more or less worked when I took it out of the game.
Turned it on. Main fuse blows.
Then I unplugged the monitor. The unit powered up. All I hear is a nasty hum from the speakers. So I shut it off. Pulled the 10V DC in/out and audio cables and turned it on. The lights and fans run fine. Main fuse held.
There is some scoring on the 10V DC input--but the connector has been like that for some time. I was hoping that rebuilding the G80 would help keep this beast running longer as it was acting up a little.
Where should I start with checking voltages? I know I'm looking for -12, +12, -5, +5 but I don't know where to check. Page 71 in the manual has the harness assembly but it doesn't indicate voltages. Page 16 shows me bus assignments but I don't know which pins have which power on them. I'd like to test them properly. Any advice here would be nice and if you have experience with the manuals and know where to point me I would really appreciate it.
So frustrating.
I'm in need of a little guidance.
I rebuilt my G80 PS and popped it into the unit four days ago. It worked fine for two days. Then yesterday I turned it on and I heard a fizzle, garbled sound and then nothing.
Now the main fuse keeps blowing.
I swapped out power supplies with another I had standing by that more or less worked when I took it out of the game.
Turned it on. Main fuse blows.
Then I unplugged the monitor. The unit powered up. All I hear is a nasty hum from the speakers. So I shut it off. Pulled the 10V DC in/out and audio cables and turned it on. The lights and fans run fine. Main fuse held.
There is some scoring on the 10V DC input--but the connector has been like that for some time. I was hoping that rebuilding the G80 would help keep this beast running longer as it was acting up a little.
Where should I start with checking voltages? I know I'm looking for -12, +12, -5, +5 but I don't know where to check. Page 71 in the manual has the harness assembly but it doesn't indicate voltages. Page 16 shows me bus assignments but I don't know which pins have which power on them. I'd like to test them properly. Any advice here would be nice and if you have experience with the manuals and know where to point me I would really appreciate it.
So frustrating.
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