they are compatible to a degree, I would certainly use a ms9-29 to upgrade a ms8-29 Difference will be the yoke connector, the ms8-29 uses a 4 pin whereas the ms9-29 has 2x 2pin- one of which for the vertical is a small gauge pin The manual switching degauss connector on the chassis will also be dif...

the flybacks are the usual cause of flashover and will most likely need replacing, the problem is getting one

what about the flyback?

get the one from tecknoservice, costs a little more but known to work

efiter no longer stock those flybacks

Ok, i have meassured B+ and adjusted it to 75.1 so I guess that should be fine, although that didn't fix the screen from rolling, I have checked caps on vertical section and all seems to be fine, I've read here that LA7853 could be the culprit, I will try to change that and will post results here. ...

yeah its just a rubber insulation sleeve

show me a photo but if its what i think it is then yes is has a rubber sleeve fitted over it

2sk1531

looks like it r517, schem has it as 3r3 1w- replace with 1r2 1w
try to use metal oxide type and confirm the value of r517 before proceeding

caps are a good start, particular cap that causes this is the 10uf 250v on the neck card and also another 10uf 250v on the video b+

have you tested the HOT

carry on with replacing caps and if no change replace the ic, if i remember correctly that ic does an awful lot of work

did you have the problem before you changed any caps?

have you checked the voltages from the power supply

put it back to original and test, then do one pot at a time

replace the broken pots, the value are normally marked on each pot or you can cross reference the schematic

you can do as said and up both the blue and green cut offs and adjust brightness if you have an overly red screen with no video signal attached then i would suggest you have a leaky diode or transistor in the red drive circuit, if not then the game board maybe at fault- if it is a drive issue then t...

red cut off is what you need-its on the main chassis
you may have a fault in the red drive circuit though

th901 then