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Author Topic: New Monitor Vertical Issues  (Read 1300 times)

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MK3FAN

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New Monitor Vertical Issues
« on: February 01, 2008, 10:36:00 pm »
Just got this brand new tube and chassis, but I think that something happened to it during shipment. The picture is fantastic except for this problem along the right hand vertical side. Anyone know what causes this? Please help. The chassis says "Multitech Games" Model :MG. I got it from 8liners. I have tried to e-mail them but they do not answer e-mails.

« Last Edit: February 01, 2008, 10:37:47 pm by MK3FAN »
Current collection - 28 cabs, 4 pins. (32 machines and not enough room)

qrz

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Re: New Monitor Vertical Issues
« Reply #1 on: February 01, 2008, 10:48:46 pm »
if this was an original monitor i would say bad cap(s).

since new unit, try a slight adjustment of the h osc . it shouldn't take much to move image a bit.

qrz

MK3FAN

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Re: New Monitor Vertical Issues
« Reply #2 on: February 01, 2008, 10:50:27 pm »
I knew it was possibly a bad cap, but do you know which one off hand? Also, Sorry, but I am new to the jargon. What is the osc?

Current collection - 28 cabs, 4 pins. (32 machines and not enough room)

MK3FAN

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Re: New Monitor Vertical Issues
« Reply #3 on: February 01, 2008, 10:57:26 pm »
Ok, so i started messing around with the pots and low-and-behold, the "Hor. Hold" was causing the problem. Never would have thought it would be that in a million years, but here is the proof. Thanks for your input QRZ.
Current collection - 28 cabs, 4 pins. (32 machines and not enough room)

qrz

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Re: New Monitor Vertical Issues
« Reply #4 on: February 02, 2008, 01:10:31 pm »
sry, i should have specified "h hold"

turning that control will vary the frequency of the horizontal oscilator .

just for "fun" ....
another way to get the frequency close is to remove the sync input and allowing the horiz/vert sections to free run .
then adjust h and v hold controls for pic to roll as slowly as possible .
reconnecting sync at this point should cause immediate sync lock.

tnx for posting your results   :cheers:

qrz

MK3FAN

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Re: New Monitor Vertical Issues
« Reply #5 on: February 02, 2008, 05:56:30 pm »
No Problem. I am glad there are professional miracle workers such as yourself available to us monitor novices.
Current collection - 28 cabs, 4 pins. (32 machines and not enough room)