Author Topic: Hook arcade board (Read 3993 times)

Mac Green · « **on:** November 17, 2011, 10:32:42 am »

Ok im about to purchase a Hook jamma board for 30$! but there is a problem. The game boots fine music plays but sprites are missing anyone know how to fix this?

boardjunkie · « **Reply #1 on:** November 17, 2011, 04:27:16 pm »

Reseat any socketed chips for starters....

Mac Green · « **Reply #2 on:** November 17, 2011, 04:28:23 pm »

could it be a problem with the sprite rom?

CheffoJeffo · « **Reply #3 on:** November 17, 2011, 04:29:45 pm »

Check voltages, then reseat socketed chips, then start looking at ROMs.

EDIT: you were too quick ... yes, could be a ROM problem, but do the other two steps first.

Mac Green · « **Reply #4 on:** November 17, 2011, 04:31:11 pm »

if it is a rom problem do you know were I can get a rom made at?

Mac Green · « **Reply #5 on:** November 17, 2011, 04:52:56 pm »

ive attached some pictures maybe someone can tell me whats wrong

boardjunkie · « **Reply #6 on:** November 18, 2011, 02:16:34 pm »

Dude....no one can look at a board and tell you whats wrong with it....unless its missing all its roms or something stupid obvious.

Mac Green · « **Reply #7 on:** November 18, 2011, 03:48:00 pm »

Yah . . . . . kinda figured that

opt2not · « **Reply #8 on:** November 18, 2011, 05:11:18 pm »

Quote from: boardjunkie on November 17, 2011, 04:27:16 pm

Reseat any socketed chips for starters....

^^ this.

Quote from: CheffoJeffo on November 17, 2011, 04:29:45 pm

Check voltages, then reseat socketed chips, then start looking at ROMs.

EDIT: you were too quick ... yes, could be a ROM problem, but do the other two steps first.

^^ and this.

Be very careful when pulling out the rom chips. You want to pull them out evenly, so that you don't bend their legs. IC legs are very easy to bend and break. If you don't have a IC remover tool, then do what I do:
- use a flathead screw-driver bit
- carefully wedge it under one side, be certain you're only under the chip, and not under the socket housing
- lift one side of the the chip slightly by twisting the flathead bit, you only need to raise it slightly
- do the same to the other side, slightly twist again, and eventually you'll have the chip out

While you have the chip out, it's probably a good idea to see if the legs need a cleaning. You can clean them by lightly rubbing an eraser against them. Or a cotton swap, dipped in Isoprophenol.

404 · « **Reply #9 on:** November 18, 2011, 06:44:11 pm »

Now bear in mind that i have never repaired an arcade PCB but just by looking at the shots you provided, i would have a closer look at the following areas in addition to reseating the roms as mentioned above. This doesn't mean that these areas are indeed bad. I'm just encouraging you to have a closer look at them. As someone already mentioned, it's nearly impossible to troubleshoot a board by sending someone a picture of it. I have attached a modified pic of the second shot you provided.

First at the top left of the daughter board, There looks to be rust or some other corrosion there.

At the second half of the daughter board to the right. The rom chip at the top looks like it was replaced. It is of the same model as the other rom chips on the board but its clearly brighter in color. It's also quite scratched up. Near that chip you have some areas that look to have solder spats and a good deal of solder flux on them. That could be indicative of a previous repair or a botched repair. Look at those areas closely.

Closer to the center of the board, you seem to have some exposed copper lines there. I'm not completely sure as the image quality could be better.

Finally the bottom right of the main board there looks to have either tons of flux or corrosion of some sort. Check that too.

Mac Green · « **Reply #10 on:** November 18, 2011, 07:45:10 pm »

yah I do see that stuff now you pointed it out

SavannahLion · « **Reply #11 on:** November 18, 2011, 07:56:03 pm »

I'm surprised no one suggested downloading the manual. Might have the schematics that can be used as a reference.

First thing I look for whenever I get my paws on a PCB.

Mac Green · « **Reply #12 on:** November 18, 2011, 08:18:12 pm »

Any one know were i can get a manual?? the one at klov is for the pinball

Mac Green · « **Reply #13 on:** November 19, 2011, 03:12:16 pm »

so is 30 a good price for the board??

RayB · « **Reply #14 on:** November 20, 2011, 03:34:31 pm »

Quote from: Mac Green on November 19, 2011, 03:12:16 pm

so is 30 a good price for the board??

If you can get it working, sure. Otherwise you just paid $30 for a piece of junk.

HaRuMaN · « **Reply #15 on:** November 21, 2011, 11:52:27 am »

Quote from: RayB on November 20, 2011, 03:34:31 pm

Quote from: Mac Green on November 19, 2011, 03:12:16 pm
so is 30 a good price for the board??
If you can get it working, sure. Otherwise you just paid $30 for a piece of junk.

Mac Green · « **Reply #16 on:** December 08, 2011, 05:53:55 pm »

Just bumping this post

mgb · « **Reply #17 on:** December 08, 2011, 09:53:44 pm »

Did you perform the steps that the others had suggested. those are the first steps to take.

check your voltages and reseat any socketed chips. Clean the chip legs while your at it.

Mac Green · « **Reply #18 on:** December 08, 2011, 10:23:00 pm »

Not yet I haven't bought it yet

RayB · « **Reply #19 on:** December 08, 2011, 11:36:12 pm »

Quote from: Mac Green on December 08, 2011, 10:23:00 pm

Not yet I haven't bought it yet

ಠ_ಠ


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