Main > Monitor/Video Forum
Hantarex polo/2 side of screen squashed
Harlock:
I am not sure, if I have pulled anything will I was wokring on it, but now there is some kind of interference in the screen, small waves in the whole screen. I used to make them go away by moving the board a bit
while trying to undestand what it was loose, I resolder some cables on the board and now is permenent :( . It seems more like a grounding issue, the board is grounded on earth though.
Harlock:
After some experimentation I am pretty sure that the psu creates this interference, if I hook the vga to a laptop the interference goes away. Not sure why is that and why it now started to be happening.
Still haven't figured out what is happening with the curvy sides :(
What else will go wrong with this crappy arcade?
grantspain:
what is the tube number?
there are components that need matching to the tube type
Harlock:
--- Quote from: grantspain on June 02, 2022, 02:43:58 am ---what is the tube number?
there are components that need matching to the tube type
--- End quote ---
If I read the correct number, 68SP110H29 and after a square with a circle it sais 54.
grantspain:
i was expecting something like A66EAK501X
anyway there is a resistor on the vertical size circuit and if it dont match the tube then you can adjust side pin but it never goes quite right, in conjunction with little vertical size adjustment
the resistor is R119 and it should be a 1r2 or 0.82, if you have 0.82 then replace with a 1r2 and vice versa
there is also a resistor on the east/west pcb that needs to be checked R9, on some tubes it needs to be removed and others it needs to be 39k
maybe this info will be of some help