I've got a pb100 with a screen that comes on, the backlight comes on, and it looks like all the pixels come on and stay black. Brightness and contrast knobs do not seem to affect anything. After power on, it chimes and attempts to access the (dead) hdd.
I started with the usual, leave it on and see if the LCD comes on, use a heat gun, etc, no changes in behavior were observed. So, since these are all old caps that probably need replacing anyway, I've recapped most of logic board (I haven't touched any of the 1uF's, 3 radial 100uF's, and a single 4.7uF, I need to order replacements), including C22 which apparently is known to cause problems with the lcd bias voltage.
So, I've opened up the LCD, and there are 2 electrolytic caps on the board in the picture. C4 seems to be 47uF 16V radial, and C1's (near the connector on the left) label is obscured by other components, I'll need to remove it to read the label. But there are tight height requirements for the caps, and the 47uF replacement I picked up from RadioShack is too tall. I was wondering if anyone else has replaced these, and has a good source for them.
Or, if this is a known issue and I'm being dumb, that'd be good to know too.
I started with the usual, leave it on and see if the LCD comes on, use a heat gun, etc, no changes in behavior were observed. So, since these are all old caps that probably need replacing anyway, I've recapped most of logic board (I haven't touched any of the 1uF's, 3 radial 100uF's, and a single 4.7uF, I need to order replacements), including C22 which apparently is known to cause problems with the lcd bias voltage.
So, I've opened up the LCD, and there are 2 electrolytic caps on the board in the picture. C4 seems to be 47uF 16V radial, and C1's (near the connector on the left) label is obscured by other components, I'll need to remove it to read the label. But there are tight height requirements for the caps, and the 47uF replacement I picked up from RadioShack is too tall. I was wondering if anyone else has replaced these, and has a good source for them.
Or, if this is a known issue and I'm being dumb, that'd be good to know too.