If it has a 9-160 main board it HAS cold joints on it.
They all did over time, thats 99% your start problem.
If it uses 9-214 main board there is no grey scale, its automatic.
On 9-181 main & 9-155 CRT socket sets grey scale you can
1) turn all three colors down.
2) one color will be dominant, raise the other two to make B&W.
Convergence cant be described & I never understood it to be honest.
The rear magnet is purity, the others center conv. Mark them &
play with them. Some had a locking ring in front. Some used
twist knobs & others tabs. Side conv is by bending & wedging the yoke.
Early EFL sets used a yoke ring with adjustments.
73 Zeno
LFOD !
Quote:
Originally Posted by iong
I have the 25" version of that TV. Can't find good service information. I don't know how to properly set the 3 Screen controls cause there's no service switch. Sometimes it takes a two or three seconds before the power supply starts and the high voltage pops on. Also Photofact has nothing about convergence. Is there a place to get good service information to get this right again. It was handed down from my Grand Father.
Perry
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