Virtua Cop Monitor Help needed

For monitor related issues
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snakeblisken
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Virtua Cop Monitor Help needed

Post by snakeblisken »

Hi Guys

Could somebody point me in the right direction. I have a Nanao Ms9-29 monitor chassis and i need to replace L504 on the board. I take it that is a Inductor. The one i have the cover burnt completely and i cant make out what i need to replace it with. Some guidance would be amazing!

I also managed to get the LA7837 chip to fix he horizontal collapse . Caps look fine on inspection but the L504 on the board was burnt. Hoping this will get my screen back on.
Last edited by snakeblisken on December 21st, 2018, 8:29 pm, edited 1 time in total.
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grantspain
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Re: Time Crisis Monitor Help needed

Post by grantspain »

l504 is lin coil, 41A42000340-A
i doubt you will find one except on another chassis
la7837 is vertical deflection ic and nothing to do with horizontal, L504 does though
snakeblisken
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Re: Time Crisis Monitor Help needed

Post by snakeblisken »

Thank you so much for the reply.

Do you think that could be my prob?

As i start the machine a white horizontal like comes on then the CRT turns off.

also is there a part i could fit that would replace the role of that coil?
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grantspain
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Re: Time Crisis Monitor Help needed

Post by grantspain »

show me a photo of the coil
horizontal line across crt is vertical collapse and indeed affected by the la7837
snakeblisken
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Re: Time Crisis Monitor Help needed

Post by snakeblisken »

Here is the image:

Image

Thanks again!
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PrincessPrinPrin
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Re: Time Crisis Monitor Help needed

Post by PrincessPrinPrin »

That's fine, it's just the sleeve that got flaky.
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grantspain
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Re: Time Crisis Monitor Help needed

Post by grantspain »

yes i agree, just got a bit warm which is normal

change the ic
snakeblisken
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Re: Time Crisis Monitor Help needed

Post by snakeblisken »

Thank you so much! Cool, should be here mid Jan, Will keep you guys posted on my progress. New to it all but really enjoying restoring a old gem.
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PrincessPrinPrin
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Re: Time Crisis Monitor Help needed

Post by PrincessPrinPrin »

The coil is polarized: it needs to be put back on the chassis with the same orientation as before.
snakeblisken
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Re: Time Crisis Monitor Help needed

Post by snakeblisken »

How would i know the correct orientation?
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PrincessPrinPrin
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Re: Time Crisis Monitor Help needed

Post by PrincessPrinPrin »

The sleeve has a white band. Align it with the silk screening on the chassis.
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PrincessPrinPrin
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Re: Time Crisis Monitor Help needed

Post by PrincessPrinPrin »

hlin.jpg
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snakeblisken
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Re: Time Crisis Monitor Help needed

Post by snakeblisken »

You a super star! infact this community is awesome!
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Re: Time Crisis Monitor Help needed

Post by snakeblisken »

Not sure how to edit the Title, was suppose to say Virtua Cop and not Time Crisis. Blond moment. lol
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