xexex audio problem

[snk80]

hello
i just got a japanese xexex board.

i have problems on sound. i understood that are tipical for this game...
when i use jamma output sound is pratically 0 , i hear something but really really low
when i use external stereo cable , sound is just normal setting audio at maximum .. but anyway sound is clear and there is no noise
some suggestions ?

[mastercello]

Most probably dying Konami Sound Custom Modul - contact caius (he is in Italy too), he can repair it for sure!

[snk80]

i d like to understand if are only capacitor or costum chip.

in first case i have a technician in my city i can ask for it

[AstroX]

90% capacitor
10% costum chip

[nem]

More than likely the culprits are the SMD caps on top of the sound module. Recapping is not a huge ordeal.

[snk80]

i think in my ignorance
if it would be custom chip sound was clear ?

all is perfect just low with stereo or ver very low with jamma.
so seems a amplification problem right ?

[thechop]

Get it sorted ASAP as the caps may have leaked and will eat traces and cause more damage than just the simpler cap replacement.

[snk80]

yes arrived to me yesterday

i m' trying to understand if is justa a change of capacitor.. in this case i can do this work to a electronic techinician in my city

if it's costum chip is more dangerous

[snk80]

ok i found a technician can replace for me
someone know values of capacitor

module is 1W3 054544

[snk80]

i notice that seems there era many module for 054544

i notice there are 1w3 , 2p2 etch..

so every board has a different module ?

[thechop]

https://www.arcade-projects.com/forums/ ... -by-caius/

[snk80]

i check on internet

bigs are from 47 micro farhaid
little are from 4.7 micro farhaid

seems so

[caius]

There is only a revision of the '054544' module.You can try to replace capacitors but this could not be enough.Module is not only capacitors of top but it has a digital to analog converter and a preamplification circuit on the underneath.I know perfectly how it work since I reproduced both modules and have figured out schematics.Contact me if you need a repro.