MV1 with sound issues

T

trebormills

Quiz Detective
Joined
May 17, 2009
Posts
83
I have an MV1 on the way to me which sometimes has crackles on the sound...any ideas of fix

Some ideas i have had
1) Clean cart slot
2) Bad capacitors (read this somewhere)
3) something else??

Also if it needs fixing any UK contacts?? else its off to USA for fix if not a simple job

...hmmm...forgot the exact mv1 model right now...ill edit this later when I find the paperwork
Its an MV1a
Picked up nice and cheap to play with...still after a 2 slot for day to day use
 
Last edited:
ttooddddyy

ttooddddyy

PNG FTW,
Joined
Nov 29, 2001
Posts
8,335
Could be as simple as a dirty/scratchy volume pot, try cleaning with contact cleaner.

Good to see another Welsh member on board :) (originally from Felinfoel, Llanelli)
Cymru am Byth
 
T

trebormills

Quiz Detective
Joined
May 17, 2009
Posts
83
ttooddddyy said:
Could be as simple as a dirty/scratchy volume pot, try cleaning with contact cleaner.

Good to see another Welsh member on board :) (originally from Felinfoel, Llanelli)
Cymru am Byth
Click to expand...

Pnawnd da

Dw i'n dysgu Cymraeg

Da bo chi

Hopefully that said

Good afternoon
im learning welsh
goodbye

Thanks for the tip...hmm need to pick up some cleaner
 
channelmaniac

channelmaniac

Mr Neo Fix-it
15 Year Member
Joined
Nov 29, 2005
Posts
4,275
Crackles sounds like dirty slot or the upright board isn't seated well.

Check for scratched or gouged traces too.

What you are looking at is most likely a bad data trace from the Sound ROMs.
 
ttooddddyy

ttooddddyy

PNG FTW,
Joined
Nov 29, 2001
Posts
8,335
That is well said. Unfortunately I am not a fluent speaker :(
Hwyl fawr could be used as an alternative in the same context. It is different in the north compared to the south as you would know.

Nos da



trebormills said:
Pnawnd da

Dw i'n dysgu Cymraeg

Da bo chi

Hopefully that said

Good afternoon
im learning welsh
goodbye
Click to expand...
 
Last edited:
T

trebormills

Quiz Detective
Joined
May 17, 2009
Posts
83
OK
Unit turned up...looks clean and good nick (ok pic makes it look a bit more scabby I notice)

However some solder looks a bit iffy ... i think its a capacitor near r73+r78 and c9 (flagged on top as ac5??) circled with arrow at top of pic

also some tracks underneath look a bit coppery as if ink/cover rubbed off... see pic lower highlight

picture.php
 
bcfczulu

bcfczulu

Over Top Auto Mechanic
Joined
Oct 17, 2007
Posts
874
a top bloke to get you sorted in the uk for repairs or modding is chaoticjelly,

hes sorted me out a couple of times modding my aes and sega saturn ,hes also going to make my 1 slot cmvs:D
 
T

trebormills

Quiz Detective
Joined
May 17, 2009
Posts
83
bcfczulu said:
a top bloke to get you sorted in the uk for repairs or modding is chaoticjelly,

hes sorted me out a couple of times modding my aes and sega saturn ,hes also going to make my 1 slot cmvs:D
Click to expand...

Cheers dude

Thought he just did unibios...so will drop him a line. That is assuming its not just a simple job like resolder that bad pin. But prob contact him re unibios anyway...
 
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