joeycuda
Well-known member
My Asteroids project, I
-had the board repaired and burned in
-AR1 rebuild
-Big blue cap
-Recapped monitor chassis, including the 2 big filter caps
-Reflowed or replaced header pins on monitor stuff, reflowed stuff
-Frame mounted transistors, etc.
I did NOT replace the HV diode
Initially, monitor looked really good, but picture was shrunk a bit. After reconnecting wires for the test switch, I adjusted it out some, but not too large, with the box about 1/2" in/visible all around.
After it was on for about an hour, I noticed the screen getting brighter to the point of retrace lines and bright dot in center. Quickly dialed the brightness down. Seemed to brighten again some, turned it down. Keeping it dim enough that I wasn't seeing dots and retrace, it seemed down too low to look decent, and the text for the score and copyright at bottom seemed to flicker/flash.
Also, I noticed when objects pass across the screen, there seems to be a vertical "band" in the center where objects get slightly larger, then smaller as they pass through.
Where should I start - HV diode? Resistors? Thanks for any advice. I'd love to finish this (until something else breaks on it) and push it to the wall.
-had the board repaired and burned in
-AR1 rebuild
-Big blue cap
-Recapped monitor chassis, including the 2 big filter caps
-Reflowed or replaced header pins on monitor stuff, reflowed stuff
-Frame mounted transistors, etc.
I did NOT replace the HV diode
Initially, monitor looked really good, but picture was shrunk a bit. After reconnecting wires for the test switch, I adjusted it out some, but not too large, with the box about 1/2" in/visible all around.
After it was on for about an hour, I noticed the screen getting brighter to the point of retrace lines and bright dot in center. Quickly dialed the brightness down. Seemed to brighten again some, turned it down. Keeping it dim enough that I wasn't seeing dots and retrace, it seemed down too low to look decent, and the text for the score and copyright at bottom seemed to flicker/flash.
Also, I noticed when objects pass across the screen, there seems to be a vertical "band" in the center where objects get slightly larger, then smaller as they pass through.
Where should I start - HV diode? Resistors? Thanks for any advice. I'd love to finish this (until something else breaks on it) and push it to the wall.