First off, thanks for these great forums. I resurrected a dead VX922 a year or so ago with the information I found here.
Now for my current issue. I have a Viewsonic VG2230 that has started to occasionally have issues firing up the back light if the monitor has been in standby for several hours. The behavior is this: When the monitor comes out of standby and tries to light the back light, it will come on for MAYBE a second. Seems like probably more like half a second, and then go right back out. Power light stays lit. Cycling the power will usually bring the back light up on the first try but it does occasionally take 2 tries to get it to stay on. Once it does stay on, it flickers badly and the (I assume) transformer(s) on the inverter board make a very ragged whine. This all goes away in about 30 seconds and then the monitor works 100% normally until the next time it has been in stand by for several hours. Since this isn't always readily reproducible, and the monitor still works, I haven't torn it apart yet. Basically what I'm looking for is some opinions based on prior experiences, as to that the likely cause is so maybe I can order parts in advance. I assume this will come down to either something on the inverter board or the tube(s) themselves.
Thanks much!
EDIT: NOTE: This monitor has been in continuous service since 2007.
Now for my current issue. I have a Viewsonic VG2230 that has started to occasionally have issues firing up the back light if the monitor has been in standby for several hours. The behavior is this: When the monitor comes out of standby and tries to light the back light, it will come on for MAYBE a second. Seems like probably more like half a second, and then go right back out. Power light stays lit. Cycling the power will usually bring the back light up on the first try but it does occasionally take 2 tries to get it to stay on. Once it does stay on, it flickers badly and the (I assume) transformer(s) on the inverter board make a very ragged whine. This all goes away in about 30 seconds and then the monitor works 100% normally until the next time it has been in stand by for several hours. Since this isn't always readily reproducible, and the monitor still works, I haven't torn it apart yet. Basically what I'm looking for is some opinions based on prior experiences, as to that the likely cause is so maybe I can order parts in advance. I assume this will come down to either something on the inverter board or the tube(s) themselves.
Thanks much!
EDIT: NOTE: This monitor has been in continuous service since 2007.
Will post pics as soon as I have it apart.
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