Thanks for the info. I had a general idea that it might be something
like this, but it's helpful to know what to look for. I won't have time
to dig into it until next weekend. Unfortunately, HP's documentation is
not generally available so it may take some exploring.
On 5/19/2013 4:02 PM, Azelio Boriani wrote:
Usually this type of failure comes from the startup section of the
power supply. Try to locate the resistor and the electrolytic
capacitor of the driver IC. The resistor (in the 68K - 390K range)
connects the V+ bus to this low voltage capacitor and gives the
startup voltage.
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