Arcade Collecting > Restorations & repair
Dig Dug Restoration by a Complete Noob
SirPeale:
--- Quote from: Pop Culture Portal on March 29, 2009, 04:43:07 pm ---
--- Quote from: Peale on March 29, 2009, 07:04:01 am ---
--- Quote from: Pop Culture Portal on March 29, 2009, 02:04:58 am ---Is there any way of checking to see if the noise is being caused by the AR or the PCB or both?
--- End quote ---
Paper towel roll to your ear. Move it around. When it's loudest, you have your culprit.
--- End quote ---
Rimshot!
And to think I almost ran upstairs to the kitchen to find said paper towel roll...
I'm beginning to wonder if I wouldn't be better off buying a GO7 monitor like what is supposed to be in the Dig Dug in the first place and finding a PCB that isn't jacked up as much as mine. I can see a Dig Dug image burned into the monitor, but I'll be damned as to how they got an image to the monitor in the first place with the wiring the way it is now. I've got a Joust project much further along than this Dig Dug project and I'm thinking about switching to that for awhile.
--- End quote ---
Erm...I was serious. It's a common technique to find mystery noise locations.
I'm guessing someone just dumped that monitor into this game. Like Kevin said, this monitor is setup to take 100VAC - MAX. I'd measure the output of the isolation transformer to see if it's been replaced.
Mauzy:
Wait: isn't the static and other bad sounds coming out of the cabinet speaker? I'd like to think I've followed this closely but perhaps I'm wrong. If that is the case the paper tube idea isn't really for this application.
Thats probably why PCP (hmm...never noticed that until I abbreviated his name...) thought Chad's idea was weird. I've used the paper towel tube method on a monitor in the past. Worked nicely.
Pop Culture Portal:
--- Quote from: Peale on March 29, 2009, 05:31:48 pm ---
--- Quote from: Pop Culture Portal on March 29, 2009, 04:43:07 pm ---
--- Quote from: Peale on March 29, 2009, 07:04:01 am ---
--- Quote from: Pop Culture Portal on March 29, 2009, 02:04:58 am ---Is there any way of checking to see if the noise is being caused by the AR or the PCB or both?
--- End quote ---
Paper towel roll to your ear. Move it around. When it's loudest, you have your culprit.
--- End quote ---
Rimshot!
And to think I almost ran upstairs to the kitchen to find said paper towel roll...
I'm beginning to wonder if I wouldn't be better off buying a GO7 monitor like what is supposed to be in the Dig Dug in the first place and finding a PCB that isn't jacked up as much as mine. I can see a Dig Dug image burned into the monitor, but I'll be damned as to how they got an image to the monitor in the first place with the wiring the way it is now. I've got a Joust project much further along than this Dig Dug project and I'm thinking about switching to that for awhile.
--- End quote ---
Erm...I was serious. It's a common technique to find mystery noise locations.
--- End quote ---
Seriously? And I thought this was some weird initiation you were trying to put me through! ;D
And like Mauzy said, the noise is coming from the speaker, so I just jumped to conclusions that somebody was yanking my chain. Sorry about that!
I'm on a business trip for a few days and I'll have to get back to my Dig Dug later.
SirPeale:
I must have missed that. I thought you couldn't tell if the noise was coming from the AR II or the monitor.
Pop Culture Portal:
--- Quote from: ChadTower on March 13, 2009, 04:47:02 pm ---
Those edge traces look like someone tried to repair them but didn't get it working. Probably because the issue was the connector pin and not so much the edge contact. So they bypassed it instead. Weird route to take.
--- End quote ---
If the connector pin needs to be replaced, which one should I get?
Also, just for the heck of it, I removed a few of the ROMs from the PCB and they look crispy. I tried cleaning the edges with an eraser, but the black wouldn't seem to come off. EDIT: I mean RAMs, not ROMs. Also, how do I ID the type of RAM? How do I know the difference between a Z80 or a 2016?
I count 6 caps on the PCB. Would it be a good idea to replace those?
I also saw that the dip switches are cracked/broken. Some of the switches won't even move. Am I getting into the territory of just buying a working PCB at this point? Would it be cheaper in the long run?
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