need to fix a modded top loader

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gio_aus
Posts: 3
Joined: Mon Jun 09, 2014 9:27 am

need to fix a modded top loader

Post by gio_aus »

Hi guys,

Got a couple of PAL top loader mods done, one with a TRRS connector and the other with a Multi AV connector. They work fine except the picture has bad colour, I've attached a few photos. I was told that I may need to amplify the video signal to make it brighter, can anyone steer me in the right path?

Thanks.
Attachments
Top Loader With AV Multi Mod & Front Loader
Top Loader With AV Multi Mod & Front Loader
Pasky
Posts: 121
Joined: Wed Feb 27, 2013 9:23 pm

Re: need to fix a modded top loader

Post by Pasky »

Image

Transistor is a PNP 2N3906.
gio_aus
Posts: 3
Joined: Mon Jun 09, 2014 9:27 am

Re: need to fix a modded top loader

Post by gio_aus »

hey thanks for that. i'm not very familiar with pcbs and soldering so I'll be getting a friend to do it for me. is it possible to solder this directly to the board or does it have to be on a little pcb as per the diagram supplied?
Pasky
Posts: 121
Joined: Wed Feb 27, 2013 9:23 pm

Re: need to fix a modded top loader

Post by Pasky »

Preferably you want to do it on a board and not 'dead bug' it. You can buy cheap 4x6 CM 'prototype' boards on ebay.

http://www.ebay.com/itm/Lot-5pcs-4cmx6c ... 41823b452e

Of course you only need 6 rows x 6 columns, so just cut it to size.

Alternatively, people sell them pre-assembled on ebay, but at a grossly overpriced cost.
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l_oliveira
Posts: 409
Joined: Wed Jul 13, 2011 6:51 am
Location: Brasilia, Brazil

Re: need to fix a modded top loader

Post by l_oliveira »

This circuit is so simple it can be assembled "floating" on the NES/Famicom mainboard.... :)
gio_aus
Posts: 3
Joined: Mon Jun 09, 2014 9:27 am

Re: need to fix a modded top loader

Post by gio_aus »

is it easy to connect to the AV Multi pinout?
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