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Hi Rajil!<br>
<br>
<blockquote type="cite"
cite="mid:mailman.5.1536148803.27884.mythtv-users@mythtv.org">
<pre wrap="">I bought two 5V 2A power supply's (PSU) from the Hauppauge.com store
[1]. Using this PSU, the HDPVR seems to lock up at times. The
multi-meter shows that the voltage is 5.2V while a check on the original
supply showed 5V. Is HDPVR quite sensitive to supply voltage?
</pre>
</blockquote>
<br>
The issue is probably more with the current than the voltage. Bit
of a tangent but USB voltages are 5.0 vDC, ±5%, so 4.75 - 5.25
volts. My guess, somewhat confirmed by Jim's reply, is more your
wall wart isn't quite sufficient. Check the current specification:
is listed in mA (milliamps) or A (Amp); 1000mA = 1.0 A. There
should also be a spec plate on your HDPVR: you want your wall wart
to be at the amount on the HDPVR's plate plus a bit more. (The
HDPVR will only draw as much as needed from the wall wart.)<br>
<br>
(Add in there someplace I'm thinking you measured the voltage from
the wall wart under a no-load condition: stuck the probes in without
the HDPVR connected; it does make a difference. A battery can
measure good without a load but connected to a LED and you may
discover it is in need of replacement.)<br>
<br>
Jim suggested cutting off the end and connecting to the/a computer
power supply -- just be aware with DC (Direct Current) there is a
polarity: a positive and a negative. Reverse wiring can with result
in nothing or 'letting the smoke out'. If you are not too
electrically inclined instead of wiring to the computer's power
supply as Jim suggested you could plug a USB cable (with the adapter
on the other end) into a USB port -- maybe: depends on the current
needed by the HDPVR. I'd also plug into a powered USB port or
charger rather than the computer itself - just in case!<br>
<br>
Barry<br>
<br>
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