Bubble bobble (redux) music problem

PCB problems and fixes
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darkcrono
Posts: 119
Joined: August 7th, 2013, 1:59 pm
Location: Spain
Initials: ISF

Bubble bobble (redux) music problem

Post by darkcrono » September 10th, 2019, 12:30 pm

Hi i have a bubble redux, that has estatic sound on music, sfx seems to be fine, but bgm has constant static sound around it, i had some problems when making this redux, and finally, i don't know how the cap in the red circle blew, i replaced it and all was good but the sound, i swaped 3 and 4 eeprom, but i don't really know which roms has the sound or the problems, or if it is a recap job what it needs, any help?
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Trol
Posts: 2
Joined: September 27th, 2019, 5:41 pm
Location: Netherlands
eBay: trol666

Re: Bubble bobble (redux) music problem

Post by Trol » September 27th, 2019, 8:57 pm

Try replacing the tl074 ic in the sound section.
I fixed three or four Bubble Bobble bootlegs with either no music or no sfx.
All of them had a bad tl074.

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