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-   -   Pace PVR3 PSU voltages? (http://www.homecinemabanter.com/showthread.php?t=65330)

Clint Sharp December 22nd 09 11:44 PM

Pace PVR3 PSU voltages?
 
Got a faulty one, stuck in standby and the power LED looks rather dim,
does anyone know what voltages the PSU should be providing?

It doesn't respond to the reset tricks, the HDD tests OK in a PC.
--
Clint Sharp

Clint Sharp December 23rd 09 09:51 AM

Pace PVR3 PSU voltages?
 
In message , Java Jive
writes
I can't comment on the TV Tuner and the amplifier parts of the
circuits (at least not with up-to-date info for the latter, even
supposing I could recall or ferret out anything from the dim and
distant past), but digital circuits usually run on 5V

There appear to be around 6 voltages coming from the PSU and there are
at least three components on the board that look like they may be linear
regulators so examination by eyeglass should let me work out the
voltages there I suppose. While I can guess what some are by the type
numbers of the chips, I'm not going to be able to do that for all of
them though, especially tuner/LNB voltages. I suppose I could try and
find a working box of the same type but that might be a little difficult
at this time of year..

, though IIRC
some laptops, perhaps even most nowadays, run on 3.3V. If the HD is
of the desktop type, there will also be 12V supply

It is and there will be 5v and 12v to check on that connector.


--
Clint Sharp

Alan[_4_] December 23rd 09 05:44 PM

Pace PVR3 PSU voltages?
 
In message , Java Jive
wrote


but digital circuits usually run on 5V, though IIRC
some laptops, perhaps even most nowadays, run on 3.3V.


For the past large number of years most digital circuits run with 3.3V
and it is common for many large integrated circuits to run at 1.8V or
1V.

--
Alan
news2009 {at} admac {dot} myzen {dot} co {dot} uk


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