Cornerstone p1600 flickering / arcing
Yes, dust accumulation will cause this and sometimes humidity.
You probably wont find much about arcing in a product manual.
The High voltage comes off the horizontal drive circuit through a transformer. Flickering says the CRT and the circuit is working. You just are getting a high voltage arc to a ground source before the CRT.
If you open this up, use extreme caution. You will be dealing with high voltage. Consider it a STUN-GUN! If you have a heart condition JUST SAY NO. Go shop for a new flat panel and recycle your old friend. I understand. I too am a hard sell if it can be fixed.
IF NOT THEN...
Place it in a dark room, turn it on and observe where the arcs are coming from and going to. TURN IT OFF. UNPLUG IT FROM POWER! (Most CRTs have an instant-on when plugged in)
Locate the suction-cup looking connector and wire on the back of the CRT. Use a vacuum first to remove as much dust and lint as possible.
The auto store sells ELECTRONIC CLEANER as well as SILICONE GREASE (for sparkplug wires). Do NOT use any thing that will leave a residue.
Clean the entire wire, connector and socket and any other area that you may have found in the dark test.
Use the silicone sparingly coat the contact area of the socket and wire.
IF there are other arc issues somewhere you may use silicone grease or silicone rubber to repair.
Jun 06, 2017 |
Cornerstone Professional P1600 Monitor