Re: VP2030belayed start up after replacing caps

Thanks for all the suggestions!

I tried replacing the caps on the USB board but it didn't have any effect. Actually it made it worse and with the USB board connected it now doesn't turn on after 2 minutes. I didn't want to wait any longer in case something was overloaded. I resoldered everything again and rechecked to make sure there weren't any shorts but no change.

With the USB board removed it works fine so I'm going to use it without. I might try debugging the board if I can find out what the connections...

Re: VP2030belayed start up after replacing caps

Some progress. I tried removing the USB board and that cures the problem. I hadn't replaced any of the caps on that board. There are 6 100uF 25V TEAPO caps. Unfortunately I don't have enough (good quality) caps to try replacing them all right now.

I also timed the delay and it's actually a bit better than before (since replacing the caps on the PSU board, but before removing the USB board). It seems to be about 30 seconds. Sometimes switching it off and on results in another 30 second delay, sometimes it comes on much...

Re: VP2030belayed start up after replacing caps

Replaced all but the large cap on the main power supply board. Unfortunately it didn't make any difference. There is still a delay of a minute or two before the display switches on.

Is there any chance the large capacitor has failed? I've been told by several people that they are very reliable. Or are there any other components that could be so temperature dependent?

Re: VP2030belayed start up after replacing caps



1. No, actually nothing on the main power board (i.e. the board when the main supply connects).

2. Panasonic FR series type A and Rubycon ZLJ

3. The green light is on for maybe 1/2 second then goes out. The same problem occurs if the computer turns off the screen. There's an orange light on while the screen is off but when e.g. the mouse is moved to activate the display, the orange light turns off for a couple of minutes and then then monitor comes on.

So you suggest replacing...

I recently revived a dead VP2030b by replacing the capxon capacitors(3x 180uF 35V, 6x 100uF 25V, 2x 1000uf 6.3V). All of them had the familiar bulge.

Once it's on, the monitor works fine but it takes a very long time to switch on. When the power button is pressed, the green power led lights briefly, then goes out. It then takes several minutes before the monitor turns on.

There aren't any other capxon capacitors and I couldn't see anything else that looked out of the ordinary. Is the delay normal for this monitor? If not what else needs replacing?

Thanks,...