STM CircleOS forum / Dead Primer2

samarkh · 2009-01-27 20:44:13

U17, I think. No back light, re flashed, with out PC error, but still no sound or picture. 2.8v present, but 0.1 ( ish ) across C54. Any thoughts?

Yours Simon M.

Francis · 2009-01-27 21:54:41

I met the same issue with U17, after touching the PCB with my fingers (either ESD, or a short cut that modified the setting of the output voltage. I had to replace U17.

samarkh · 2009-01-27 22:37:34

Thought so..
Ordered a new Primer 2 as starting to make some head way with this, but need a well documented / commented project to hand hold me beyond the tutorial.

Yours Simon M.

malcolmst · 2009-02-11 05:47:07

I had the same thing happen with my PDA (HP iPaq 1940). The DC-DC converter always seems to get zapped first ... had to replace the part on 2 occasions after just touching the PDA while it was charging.

I think it's most likely the ESD, especially if your Primer was connected to your computer at the time and you're in a relatively dry climate. It's a good idea to wear one of those static bracelets or at least touch some grounded metal first, but I don't always get around to doing that either.

# 1 2009-01-27 20:44:13 Dead Primer2

Dead Primer2

# 2 2009-01-27 21:54:41 Dead Primer2

Re: Dead Primer2

# 3 2009-01-27 22:37:34 Dead Primer2

Re: Dead Primer2

# 4 2009-02-11 05:47:07 Dead Primer2

Re: Dead Primer2

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