Thanks - managed to source a chip - replaced it, and it works like a bomb!!

"Techforce" wrote in message
...
They do have a history of fail, you can purchase he
http://www.ljecc.com/


"John Dough" wrote in message
...
| I'm trying to repair my cornerstone monitor which is missing the color
blue.
|
| I've tracked it down to a driver chip (I think) - VPS10 (CRT Display
video
| amplifier)
|
| If I disconnect the input pin (pin 10) the signal is the same shape as
the
| other two colors - red and green. The moment I connect the input back
the
| amplitute of the signal almost halves. I've checked the output pins as I
| thought it might be pulling the input down - but no go. All
| resistors/caps/diode check out ok.
|
| Does it sound like the chip is faulty - is this a common fault? Can
anyone
| recommend a replacement - the local exeltroniucs shop doesnt stock them

|
|