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 » December 21st, 2018, 10:11 am

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 » December 21st, 2018, 12:27 pm

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 » December 21st, 2018, 5:49 pm

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 » December 21st, 2018, 6:38 pm

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 » December 21st, 2018, 6:47 pm

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 » December 21st, 2018, 6:52 pm

That's fine, it's just the sleeve that got flaky.
Im running games with a vga to tv converter on my Shangai Novel, with composite and it looks amazing, Im not interested in RGB or Scart.

- anonymous

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grantspain
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Re: Time Crisis Monitor Help needed

Post by grantspain » December 21st, 2018, 6:55 pm

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 » December 21st, 2018, 7:10 pm

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 » December 21st, 2018, 7:35 pm

The coil is polarized: it needs to be put back on the chassis with the same orientation as before.
Im running games with a vga to tv converter on my Shangai Novel, with composite and it looks amazing, Im not interested in RGB or Scart.

- anonymous

snakeblisken
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Re: Time Crisis Monitor Help needed

Post by snakeblisken » December 21st, 2018, 7:40 pm

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 » December 21st, 2018, 7:48 pm

The sleeve has a white band. Align it with the silk screening on the chassis.
Im running games with a vga to tv converter on my Shangai Novel, with composite and it looks amazing, Im not interested in RGB or Scart.

- anonymous

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PrincessPrinPrin
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Re: Time Crisis Monitor Help needed

Post by PrincessPrinPrin » December 21st, 2018, 7:52 pm

hlin.jpg
Im running games with a vga to tv converter on my Shangai Novel, with composite and it looks amazing, Im not interested in RGB or Scart.

- anonymous

snakeblisken
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Re: Time Crisis Monitor Help needed

Post by snakeblisken » December 21st, 2018, 7:56 pm

You a super star! infact this community is awesome!

snakeblisken
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Re: Time Crisis Monitor Help needed

Post by snakeblisken » December 21st, 2018, 8:27 pm

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

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