mv-1b no sound and problem picture

babeloued

New Challenger
Joined
Sep 27, 2015
Posts
52
hello
i come back with another slot mv1b how have garbage screen with click of death too,i repair it by changing only chip like my another board fix,changing all ram and bios but same thing so i just changing NEO BUF near dipswitch and slot work.but i realise there is no sound,so i recap all caps :same thing,change AMP TOSHIBA :NO GOOD,change op amp:NO GOOD,DAC :GOOD but with another good daughter board no sound too.
and the picture of all games have a mistake only background working,i can see the time ,the score ,the number player all but not any soldiers "metal slug"
please help me to resolve the problem
best regards ;)
 

babeloued

New Challenger
Joined
Sep 27, 2015
Posts
52
hello
there is nobody who can help me?
nobody have seen this mistake
best regards
 

pnauts

Kuroko's Training Dummy
Joined
Jun 7, 2017
Posts
76
it could be the RAM6116 and for your video problem looks at ZMC2 outputs
 

babeloued

New Challenger
Joined
Sep 27, 2015
Posts
52
6116 ok change with more new ram but still not working and about video i change with a daughter board and th problem is the same not working
changement fait avec une carte fille d un autre slot mv1b et toujours meme chose,je pense a une piste couper mais laquelle?
merci encore
 

babeloued

New Challenger
Joined
Sep 27, 2015
Posts
52
no i don t have this chip in my mv1b slot
but what else for the graphic problem ,who i have mistake and missing pictures like the neo geo logo in the top of screen
best regard
 

pnauts

Kuroko's Training Dummy
Joined
Jun 7, 2017
Posts
76
I have also the trouble with a slot (missing NEO-GEO) and problem on sprites? I think I'll change the LSPC.
 
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