My 132 Power Module failed. Not made by HP. removed the white silicone one
Diode was not soldered in sometimes touched, solder it in no more problems.
Bert Kehren
Hi
The PSU in the 131 is a known weak point. Usually when they die, they
take a lot of parts out in the process. The good news is that the PSU in
the 53181 is the same as the 131 PSU. Since 181’s tend to sell for “not
much” they are a fine parts donor ….
Bob
> On Dec 8, 2021, at 5:53 PM, Marek
If I were a betting man, I would say that the spillage is from a
decomposed bumper that was placed to prevent the board from flexing and
possibly shorting out.
This is somewhat a common failure for bumpers and rubber feet.
Glenn
On 12/8/2021 5:53 PM, Marek Doršic wrote:
Hello,
while
HP used rubber feet as standoffs and they literally melt over time making
quite a mess. But reasonable to clean up. Can't comment on the sparks.
Regards
Paul
WB8TSL
On Wed, Dec 8, 2021 at 5:54 PM Marek Doršic wrote:
> Hello,
>
> while taking a measurement my HP53131a counter sparked and
