The pincushion/hourglass control circuit just failed in my Viewsonic 21 monitor. If anyone can suggest a fix I may be able to rescue the monitor from the recycling bin.
TIA.
Pin cushion failure Viewsonic 21 (glass) monitor
Jul 04, 2009
3 Replies
It'll still be a big CRT monitor, and generate heat/suck power, but the pincushion circuit is just a low-volt amplifier in these machines; probably the coupling capacitor near "pin amp" markings on the main circuit board is in need of replacement.
Capacitor failures (mostly dried out 'lytics) tend to be more gradual than a sudden change. It's certainly worth checking the caps but keep an open mind about other possibilites.
G=B2
I've already replaced the monitor with an LCD. The failure took about 10 minutes, from twitching to waviness to finally a total hourglass shape.
Thanks for responding.
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