Dragon's Lair Fans - Arcade Lifestyle

General Chat => Technical Area => Topic started by: Belike on February 28, 2010, 08:23:31 PM

Title: Vanguard and Roc'n rope pcb
Post by: Belike on February 28, 2010, 08:23:31 PM

I need some help, I have two pcbs broken:
The roc'n rope is working but there are strange brown areas around each moving objects.
(http://lh3.ggpht.com/_-UA8BV99Des/S4rAp8oBoSI/AAAAAAAAAhw/mtSiCllYusw/s576/Roc%27n%20rope.jpg)
The other one is vanguard, the screen is running, sometimes it stops but the scoretable is in the middle of the screen instead of the top(screen adjustment is ok).
(http://lh6.ggpht.com/_-UA8BV99Des/S4rAvmadC6I/AAAAAAAAAh0/uT8Wf1hzwAo/s800/Vanguard.jpg)
I have an old friend who repairs arcade cabinets and pcbs from the 80's, he said it could be a ram problem with both pcbs.
Is there anybody of you can fix these?
Thanks in advance.
Bela

Title: Re: Vanguard and Roc'n rope pcb
Post by: level42 on February 28, 2010, 08:26:35 PM

Looks like ROM or RAM problems to me.

Try re-seating them. (Getting them out of the sockets, and pushing them back in firmly but gently).

Title: Re: Vanguard and Roc'n rope pcb
Post by: Muerto on February 28, 2010, 08:29:10 PM

- and check the voltage to..

Title: Re: Vanguard and Roc'n rope pcb
Post by: Belike on February 28, 2010, 10:54:15 PM

I did both, but the problem is still there :-\
Do you an expert, who can repair boards?

Title: Re: Vanguard and Roc'n rope pcb
Post by: level42 on February 28, 2010, 11:42:30 PM

www.andysarcade.de

He's the best IMHO.

Title: Re: Vanguard and Roc'n rope pcb
Post by: Laschek on March 01, 2010, 01:14:30 PM

Try cleaning the edge connectors, check and reseat any ribbon cables, adjust +5V.

Title: Re: Vanguard and Roc'n rope pcb
Post by: Belike on March 01, 2010, 02:26:56 PM

Thanks guys, I 'll try everything you advised! ;)
Wrote a letter to Andy's arcade also, didn't get answer yet ???

Title: Re: Vanguard and Roc'n rope pcb
Post by: level42 on March 01, 2010, 02:56:28 PM

Quote from: Belike36 on March 01, 2010, 02:26:56 PM

Thanks guys, I 'll try everything you advised! ;)
Wrote a letter to Andy's arcade also, didn't get answer yet ???

I know he's extremely busy for his day-time job. Have a bit of patience please.

Title: Re: Vanguard and Roc'n rope pcb
Post by: Belike on March 01, 2010, 05:38:42 PM

OK, thanks m8 :oops:

Title: Re: Vanguard and Roc'n rope pcb
Post by: Belike on March 11, 2010, 07:55:02 AM

Unfortunately Andy is very busy atm., so he couldn't take a look at these pcbs. >:(
Anybody has a different idea for this repair?
Thanks in advance. :D

Title: Re: Vanguard and Roc'n rope pcb
Post by: ckong on March 11, 2010, 08:27:01 AM

you got pm

Title: Re: Vanguard and Roc'n rope pcb
Post by: Irongiant on March 11, 2010, 11:30:43 AM

Quote from: Belike36 on March 11, 2010, 07:55:02 AM

Unfortunately Andy is very busy atm., so he couldn't take a look at these pcbs. >:(
Anybody has a different idea for this repair?
Thanks in advance. :D

Have just received your email and replied to it. I'm sure I can repair them. :)

Title: Re: Vanguard and Roc'n rope pcb
Post by: ckong on March 11, 2010, 12:15:03 PM

I knew it, Phil can repair (almost) anything.  :D

Title: Re: Vanguard and Roc'n rope pcb
Post by: Belike on March 11, 2010, 12:22:24 PM

Thanks for both of you, I hope I can recompense(found this word in the dictionary) ;D some day! ;)

Title: Re: Vanguard and Roc'n rope pcb
Post by: Irongiant on March 11, 2010, 01:54:45 PM

Quote from: ckong on March 11, 2010, 12:15:03 PM

I knew it, Phil can repair (almost) anything. 

:D

True. I wish I could repair them all, but some just don't want to play ball. Still, approximately 9/10 isn't bad. :)