Main > Monitor/Video Forum
Hantarex mtc 9000 problem
grantspain:
you can remove the neo cart and it should show a grid pattern which will make it easier to see whats going on
does the horizontal size adjust to the entire screen size?
if not then you will need to test b+, if it does then you have a fault in the vertical deflection circuit
Nevermore:
I just went and checked, and i cant adjust the horizontal width.
When i turn the knob, absolutely nothing happens.
Starting to sound to me like the," i twisted the brightness knob and it stoped working story" isnt adding up.
If you could tell me what and how to check it i will give it a shot
Never used a multimeter before in my life so got to go and get one.
Is there a certain type or function on the multimeter that i should be shure to get?.
Allready thanks a million for helping me 😉
grantspain:
so looking at that photo either your b+ is running low- possibly around 100v or you have a vertical deflection ic failue and a bad bdx53c transistor and possibly some bad caps and possible bad solder joints
so next step, nice simple multimeter and set range to 200vdc, black probe to flyback heatshield or chassis metal frame and red probe into one of the centre two pins of the green 6 pin deflection yoke connector(which is located directly behind the flyback) 130-134vdc is correct level
if you are not confident then best to send for repair, which country are you located?
Nevermore:
I am willing to give it a shot, wirst case scenario, i xant fix it but i have someone i know who can sell me a monitor if need be (preferably not because its quite expensive).
I am from belgium, antwerp to be exact.
So i guess its of to the store 😁.
Just to make 100% shure, i turn the cab on when measuring right?.
grantspain:
yes but you must place the probes first and then turn on, just to prevent you getting damaged
you should be able to find loads of online info on reading b+ on mtc9000