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Author Topic: f14 tomcat issues.  (Read 2023 times)

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Offline vanhos

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f14 tomcat issues.
« on: December 12, 2012, 08:27:02 PM »
I have bought a f14 tomcat few months ago knowing it had a few issues.

No sound at all.
Faulty display.

When i got it home i started it up with. The power supply to the display board disconnected (there was a short in display board).
It did work to a point ehen it would start pumping out extra balls into the shoot. I left it off for few weeks came back to it. Had same problem then it just stopped working. It just goes through a few light sequinces now.
 
I decided to chase up a new display. There is none around. I then came across beaky on this site i pulled out old display and  sent it up to him. In few days it came back ready to go.

I then found out the power supply to the display was faulty. Another quick response from beaky had my power supply up and working.

I plugged it all back together making sure power supply was going tp each correct pins. Once i fired it up came more issues.

The two displays on the right started to flicker scroll around and start and stop. I then looked harder at cpu board and found some real dodgy repairs. Sending pics soon.

Im thinking it was working at 80% when i first got it so im hoping there isnt issues with the cpu. $$$$$$$$$.

At this point im to scared to turn back on.

I will send through pics soon. Any ideas out there.

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Offline beaky

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Re: f14 tomcat issues.
« Reply #1 on: December 12, 2012, 08:32:13 PM »
just so every one knows when the displays left here they where working 100% and then the power supply HV was repaired by vanhos before connecting the displays as the voltages were to high.

what are the leds on the board doing?

also do you have a steady +5v and +12 to the board?
« Last Edit: December 12, 2012, 08:38:53 PM by beaky »
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Offline vanhos

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Re: f14 tomcat issues.
« Reply #2 on: December 12, 2012, 08:44:50 PM »
You are correct beaky the display was 100% when it arrived here. I will check out the leds for you im pretty sure left one was on. Middle one was flickering crazy and right one was on too.
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Offline vanhos

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Re: f14 tomcat issues.
« Reply #3 on: December 12, 2012, 08:54:50 PM »
Still trying to work out uploading.
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Offline vanhos

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Re: f14 tomcat issues.
« Reply #4 on: December 12, 2012, 08:59:30 PM »
Bit of corossion in these pins am looking for new plugs out there in pinny world.

Not sure what the two cables hanging and are taped up.

There seems to be some butchering going on in some spots.

Leds are as last posted.

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Offline vanhos

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Re: f14 tomcat issues.
« Reply #5 on: December 12, 2012, 09:01:53 PM »
This one is of display.

I will remove cpu at some stage. Take more pics.

Bit of a brothel behind here.
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Offline beaky

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Re: f14 tomcat issues.
« Reply #6 on: December 12, 2012, 09:45:38 PM »
I wouldn't be surprised if the faulty display damaged some of the outputs on the cpu. one of the displays had chunks blown out of several I.C.s

without the display you cannot see what is going on so you can't tell if it has gone back to default settings or what's going on



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Offline vanhos

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Re: f14 tomcat issues.
« Reply #7 on: December 12, 2012, 10:29:18 PM »
Yeah kind of screwed with out the display. Ill pull of the cpu and see whats behind it. Just checked a new one out there expensive.
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Offline beaky

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Re: f14 tomcat issues.
« Reply #8 on: December 12, 2012, 10:49:22 PM »
send it up with the sound board and i will sort it all out for you much cheaper than buying a new one  ^^^
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Offline vanhos

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Re: f14 tomcat issues.
« Reply #9 on: December 15, 2012, 08:37:20 PM »
Yep. Sounds like a good idea will send up on monday morning. Just in time for the xmas rush.haha.

Ill post few pics of boards the main board has been repaired at some stage not very good repair.

Im hoping mods are ok.  But im thinking the voice and sound chips might be buggered seeing i dont have any sound.

While the cpu is away ill do some tidy up work on the playfield.
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Offline vanhos

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Re: f14 tomcat issues.
« Reply #10 on: December 15, 2012, 09:55:22 PM »
pics of boards
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Offline vanhos

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Re: f14 tomcat issues.
« Reply #11 on: December 15, 2012, 09:56:53 PM »
pics more pics
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Offline MartyJ

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Re: f14 tomcat issues.
« Reply #12 on: December 15, 2012, 09:57:43 PM »
Why is there a space station ROM in it?? May just be the sticker but...
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Offline vanhos

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Re: f14 tomcat issues.
« Reply #13 on: December 15, 2012, 09:58:38 PM »
pics
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Offline andtan

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Re: f14 tomcat issues.
« Reply #14 on: December 15, 2012, 09:58:50 PM »
Quote from: MartyJ on December 15, 2012, 09:57:43 PM
Why is there a space station ROM in it?? May just be the sticker but...

I was wondering that too !@#
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