Sega STV repair?

jesesfbi

Ninja Combat Warrior
Joined
Jan 23, 2012
Posts
525
Hey everyone,
I recently picked up a sega STV with black screen issues. So I did all the methods I found online, reflow the two SH2 chips and discharge all capacitors. I looked around for broken traces and didn't find any.

I still get a black screen, even if I hold SW1 in on start up nothing shoes.

Any suggestions on what I should look for?
 

Xian Xi

JammaNationX,
15 Year Member
Joined
Dec 1, 2005
Posts
27,727
If it's just black it means there isn't any clock signal, check the crystal for the system clock. If it's working it should at least display garbage.
 

kuze

Juzoh's Gym Trainer
10 Year Member
Joined
Apr 20, 2013
Posts
2,471
If it's just black it means there isn't any clock signal, check the crystal for the system clock. If it's working it should at least display garbage.

It will display black if the main SH2 is bad too.
 

jesesfbi

Ninja Combat Warrior
Joined
Jan 23, 2012
Posts
525
If it's just black it means there isn't any clock signal, check the crystal for the system clock. If it's working it should at least display garbage.
I'll check the clock when I get home.

It will display black if the main SH2 is bad too.
So you're saying although I reflowed the solder that isn't the problem and I could have a bad SH2 instead???. Well time to replace them lol
 
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