Voice Prism Plus half Dead Help !

[dualflip]

Bad power supply?

[aztech222]

Thanks for the reply I thought of that also and it's pretty much my last hope since I already visually looked and tapped at all the components which seem fine. I also un plugged and replugged every connector, but no joy ... :-(
i could check the pins coming out of the power supply, maybe the voltage is off
or it may have noise or ac in it due to a bad cap but i don't have a scope to check that part ...

[dualflip]

Originally Posted by aztech222

Thanks for the reply I thought of that also and it's pretty much my last hope since I already visually looked and tapped at all the components which seem fine. I also un plugged and replugged every connector, but no joy ... :-(
i could check the pins coming out of the power supply, maybe the voltage is off
or it may have noise or ac in it due to a bad cap but i don't have a scope to check that part ...

Its actually hard to check everything without a schematic, but i would start making sure im getting votlage out of the PSU, since its almost certain its a switching PSU, you may have to test it in circuit, or on short bursts, that relay sound may actually be the power supply going off... I mean its very hard to tell with just the info you provided. Also check for bad caps on the PSU, switchers tend to eat up caps.

I dont know how the Voice prism is made, so i can provide very little feedback (meaning im just talking out of my ass), but PSU would be my first guess... specially on units which havent been powered for a while.

[aztech222]

TC unfortunetely doesn't want to provide any schematic because of their intellectual property ... :-(
I didn't think it was a switching PSU.
I gave all the info I could think of ; what other Info would you need ?
Maybe changing all the caps on the PSU would be worth a try ...