Anyone repair Space Harrier PCBs?

jumblejunkie

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My Space Harrier upright recently decided to call it a day. Originally when I caught the issue, the screen was just blank. After a reboot, the graphics were completely scrambled in tight horizontal lines. After testing the power supply, trying another power supply, reconnecting all the connections, checking continuity with the distribution block and I keep getting a blank screen. (It doesn't play blind, not a monitor issue)

I am guessing this is a PCB issue. These things are not easy to come by and I would love to get one of my grails back up. Does anyone know anything I could check or do I need to get it repaired.

Thanks for reading guys
 
For some reason or another the game is not processing code or the program. This is most likely caused by an eprom (bad, loose connection, dirty loose legs) or a marginal at best cpu chip. It can be a supporting chip for the cpu or rom. Ram too needs to be looked at also.

Unless you enjoy and want to continue to do your own repairs, I would send the board out for repair. It will be cheaper in the long run, believe me! If you are not buying test equipment, then you are buying parts and some are getting hard to find.


My Space Harrier upright recently decided to call it a day. Originally when I caught the issue, the screen was just blank. After a reboot, the graphics were completely scrambled in tight horizontal lines. After testing the power supply, trying another power supply, reconnecting all the connections, checking continuity with the distribution block and I keep getting a blank screen. (It doesn't play blind, not a monitor issue)

I am guessing this is a PCB issue. These things are not easy to come by and I would love to get one of my grails back up. Does anyone know anything I could check or do I need to get it repaired.

Thanks for reading guys
 
For some reason or another the game is not processing code or the program. This is most likely caused by an eprom (bad, loose connection, dirty loose legs) or a marginal at best cpu chip. It can be a supporting chip for the cpu or rom. Ram too needs to be looked at also.

Unless you enjoy and want to continue to do your own repairs, I would send the board out for repair. It will be cheaper in the long run, believe me! If you are not buying test equipment, then you are buying parts and some are getting hard to find.

Thanks for responding. PCB repair is out of my skill level. I can re-seat roms and that's about it.

Hopefully I get a bite on someone who fixes these things!
 
Thanks for responding. PCB repair is out of my skill level. I can re-seat roms and that's about it.

Hopefully I get a bite on someone who fixes these things!

Where are you located?

There is probably a klov member close to you that can take a quick look at it.

Tight horizontal lines kind of sounds like vertical collapse and you need to verify the monitor is working properly before you rule it out.

I have fixed many games where fuses looked good and I was told by owner that all fuses are good. I measured voltage to fuse and out. After replacing two bad fuses (they did look good) game worked.
 
Where are you located?

There is probably a klov member close to you that can take a quick look at it.

Tight horizontal lines kind of sounds like vertical collapse and you need to verify the monitor is working properly before you rule it out.

I have fixed many games where fuses looked good and I was told by owner that all fuses are good. I measured voltage to fuse and out. After replacing two bad fuses (they did look good) game worked.

The game does not play blind which is ruling out the monitor. Right now, the game does nothing. After turning it off and on a few times, I did get some garble on the screen a couple times. You can hear a slight hum on the speakers as well. The red LED on the board does light up. I will take a look at the fuses (all thought I dont think id get any power if it was a fuse issue, could be wrong) and try to rule out the simple stuff i might has missed.

You wouldn't happen to have a manual would you? I cannot find one online. Just wiring schematics.
 
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I should know better. Heres a pic. Now on the first boot up, it will display nothing on the monitor. If I turn it off and turn it back on, I get this on the screen that just flickers.
 

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Does this game use the same pcb as super Hang-On? Find or ask someone for a picture of their boardset. If true you could swap roms and you will probably be good. Could swap cpus too. Make sure the motherboard is the same. Did you reseat the IDE looking cables? You could try replacing the caps on the board. Replacing caps is cheap and easy. Sucks to see such a great game down.
 
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