Author Topic: [Restoration] Gauntlet - warrior needs food ...  (Read 50230 times)

italiandoh

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Re: [Restoration] Gauntlet - warrior needs food ...
« Reply #45 on: September 11, 2010, 09:31:54 PM »
You didn't mention if the game was working before you disassembled everything.

i did mention it, but perhaps you missed it.

Well, sorry about that. I must have missed it. I read this forum once in the weekends, it's easy for me to miss something among so many messages.

game was working perfectly, but the monitor was "flickery" like hell, so i did a cap kit on it. could a misaligned capacitor (+ and - exchanged) be the reason for the short? i'm almost 100 per cent sure i didn't make any mistakes when installing the cap kit, but you can never be 100% sure, can you?

No. In this case the inverted cap would have blown, not the fuses.


nope, how can i do that? two fuses blew: one in the switcher itself and one on the power supply? do you need to know which one?

Well, you have to check the game manual and follow the main wiring diagram and/or schematics. That would have told you what that blown fuse was going to protect (I mean which power line).
Anyway, if the fuse in the switcher blew and since the game was working before I'd guess you got something wrong when reassembling the machine. Double check all the connections to the game boards and the general wiring harness. Use the wiring diagram from the manual as a reference.
Good luck,

Matteo

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Re: [Restoration] Gauntlet - warrior needs food ...
« Reply #46 on: September 11, 2010, 09:42:05 PM »
Your don't have to chose what kind of fuse, it should be mentioned on /near the fuseholder or schematics.

F=Flink=Fast, T=Time Lag=Slow

Putting in T fuses (=slow) where F are required can seriously damage either your supply or the stuff you try to run on the supply.

Superully

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Re: [Restoration] Gauntlet - warrior needs food ...
« Reply #47 on: September 11, 2010, 10:28:11 PM »
Putting in T fuses (=slow) where F are required can seriously damage either your supply or the stuff you try to run on the supply.

nothing on the fuse and no idea where i can find out something about the switcher itself ???
all i need is ... PONG - and a select few others: TOUCH ME, DRAGON'S LAIR, JOUST, ROBOTRON, MR DO, SAN FRANCISCO RUSH THE ROCK!!!

Superully

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Re: [Restoration] Gauntlet - warrior needs food ...
« Reply #48 on: September 11, 2010, 10:31:53 PM »

while waiting for the fuses to arrive, i might as well show you some pictures of what else i've done with the cab!

the small bars which hold the main pcb in place are either broken or were replaced by something strange ???



here's the inside of the cab with the pcb removed. as you can see, only two bars left



one wooden board on the inside is missing entirely



it is clearly visible where the missing parts have been torn out



first step: remove the excess stuff



second step: cut replacement parts



third step: install new bars and and test them with the pcb



fourth step: install the replacement wooden board



let's turn to the back of the cab - this is how the very bottom of it looked like



in detail





of course, i can't live with that ;) so after some wood filling, a round of new vinyl and some black spray paint, i like it much better :)



the same details as above - only new





let's move upwards a little bit where another backdoor is installed behind which lies the monitor. i took the liberty of improving upon the original setup, because normally the upper backdoor is held in place by screws, whichs means in order to have access to the monitor, one has to unscrew the backdoor. i wanted to have an easier access to the monitor, therefore i installed a lock, ...



... fixed the backdoor with a large hinge (not shown on the pictures) and secured it with two chains! very easy to open, works like a charm :spaceace:





let's turn to the front: here's how the coin insert / return frames looked like



i tested a new spray for paint removal: spray it on, wait about 10 minutes and then scrape it off



the results after some more sanding





i spray-painted everything black and re-assembled the powder-coated coin door :) :) :)



right above the coin doors is the front artwork which "directs" the player to insert his currency for his favorite character. as i've shown before, someone had put two huge screws through the art for no reason PLUS the colors weren't that great anymore, that's why i ordered a replacement reproduction artwork from arcadeshop.com



the colors are vibrant ...



... and all the details are there!



i've kept the original frontart to determine the position of the replacement



and on it goes!



all i need is ... PONG - and a select few others: TOUCH ME, DRAGON'S LAIR, JOUST, ROBOTRON, MR DO, SAN FRANCISCO RUSH THE ROCK!!!

italiandoh

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Re: [Restoration] Gauntlet - warrior needs food ...
« Reply #49 on: September 11, 2010, 10:50:05 PM »
Wow, congratulations ! Impressive and top quality job as usual.  :wink:

Matteo

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Re: [Restoration] Gauntlet - warrior needs food ...
« Reply #50 on: September 14, 2010, 02:11:45 PM »
Putting in T fuses (=slow) where F are required can seriously damage either your supply or the stuff you try to run on the supply.

ok guys, the fuses have arrived (i ordered both types because they were so cheap ;)), but now i'm at a loss because i don't know which one to install. andré "painted" that horror scenario that i might damage something if i use the wrong type of fuse, so i need to be on the safe side before i install one. i totally trust andre's expertise, therefore i would like to be certain!

anyone?
all i need is ... PONG - and a select few others: TOUCH ME, DRAGON'S LAIR, JOUST, ROBOTRON, MR DO, SAN FRANCISCO RUSH THE ROCK!!!

Etienne MacGyver

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Re: [Restoration] Gauntlet - warrior needs food ...
« Reply #51 on: September 14, 2010, 02:25:30 PM »
Install fastblow first, with all the cables disconnected
then one by one connect the wires, and when the fuse blows you know what is the part that is making you sad  ;D

Superully

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Re: [Restoration] Gauntlet - warrior needs food ...
« Reply #52 on: September 14, 2010, 04:28:52 PM »
Install fastblow first, with all the cables disconnected

here's an update:

:arrow: i installed a fastblow fuse in the switcher first. turned on the game - BOOM! both the fuse directly behind the filter on the power supply board AND the fastblow fuse in the switcher blew!

:arrow: i replaced the fuse on the power supply board and removed the blown fuse from the switcher, turned on the game, steady output of around 120 volts to both the monitor and the switcher!

:arrow: installed a slowblow fuse in the switcher next. turned on the game - BOOM! only the fuse directly behind the filter on the power supply board blew, slowblow fuse in the switcher is still ok!

summary: with all the cables removed, power supply WITHOUT a fuse in the switcher is working fine, as soon as i install any type of fuse in the switcher, the fuse on the power supply boards blows!

all i need is ... PONG - and a select few others: TOUCH ME, DRAGON'S LAIR, JOUST, ROBOTRON, MR DO, SAN FRANCISCO RUSH THE ROCK!!!

SeTTleR

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Re: [Restoration] Gauntlet - warrior needs food ...
« Reply #53 on: September 14, 2010, 04:54:43 PM »
Mmh seems like your switcher is defective?! Without fuse it's clearly not working. With fast blow, it might be the stress peaks that let the fuse in the switcher blow and the error in the switcher or wiring let the fuse in the power supply blow. With a slow blow fuse, the switcher survives the stress peaks, but the error somewhere lets the fuse in the power supply blow. I'm not that familiar with these parts, that we are talking about, but maybe, this will give a hint on where the error might be. I hope you will get that fixed soon  :)
`Contrariwise,' continued Tweedledee, `if it was so, it might be; and if it were so, it would be; but as it isn't, it ain't. That's logic.'

Superully

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Re: [Restoration] Gauntlet - warrior needs food ...
« Reply #54 on: September 14, 2010, 05:09:35 PM »
Mmh seems like your switcher is defective?!

that's what i'm thinking as well, the problem is that when i reassembled everything (without connecting monitor and stuff), the outputs were fine (at least that's what i remember), but then i connected the rest, turned it on and the switches blew. however, right now i'm thinking that the original fuse in the switcher must have had a problem for a looong time, just have a look at it again :arrow:



does that look like a blown fuse to you? to me, this looks as if it has been eaten away :twisted:

let's assume that the switcher is indeed defective: what can i do? since this is one of those "atari sense switchers", i can't simply replace it with a normal power supply, can i?
all i need is ... PONG - and a select few others: TOUCH ME, DRAGON'S LAIR, JOUST, ROBOTRON, MR DO, SAN FRANCISCO RUSH THE ROCK!!!

Superully

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Re: [Restoration] Gauntlet - warrior needs food ...
« Reply #55 on: September 27, 2010, 03:58:36 PM »

the restoration continues ...

when i picked up the cab i realized during a first testplay that the monitor's picture was flickering - in fact it was "the flicker from hell" :twisted:. therefore i decided to try my first cap kit installation on the gauntlet monitor!



chassis removed from the monitor, ready for the operation



a tick behind each capacitor means "job done!"



however, i couldn't check whether my cap kit had been successful or not because i still hadn't figured out the issues with the switching power supply. i had replaced the original +/- sense power supply with a regular one and wired it up according to some guy from KLOV, but without any luck. both the screen and the pcb led stayed dark :(. without knowing how to continue, i started with the easiest option: the power supply - and i was lucky enough to find an original replacement!



i tested it for voltages and after a successful first run installed it inside the cab along with the stepdown transformer



the time had come to turn on the machine and see what happens: i flicked the power switch, pcb led came on, i slowly walked around the cab to the front and ...



VOILA!!!

as you can see, there are some graphic issues in the title screen - none of which appear during gameplay (and i can't recall whether they have been there from the start or not). but i don't care at the moment, i'm one happy camper! :) :) :)

now all that cab needs is a set of new sidearts and this restoration is done :spaceace:

to be continued ...

all i need is ... PONG - and a select few others: TOUCH ME, DRAGON'S LAIR, JOUST, ROBOTRON, MR DO, SAN FRANCISCO RUSH THE ROCK!!!

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Re: [Restoration] Gauntlet - warrior needs food ...
« Reply #56 on: September 27, 2010, 06:02:23 PM »
What a pleasure to read that, congratulation for the job done so far  :-*
Well done also for the capkit  :)... The two last times I've done it, it didn't help me to solve geometry (and others things) problems...so I'm not so confident with that personally  :? but I know it's mostly the first thing to do!   :P 

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Re: [Restoration] Gauntlet - warrior needs food ...
« Reply #57 on: September 27, 2010, 07:41:09 PM »
Check the +5V on the PCB, it may be a bit off that could cause the graphics errors.

Well done on the cap-kit Ully.....you're learning  !!! :D

Superully

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Re: [Restoration] Gauntlet - warrior needs food ...
« Reply #58 on: September 27, 2010, 07:43:06 PM »
Check the +5V on the PCB, it may be a bit off that could cause the graphics errors.

will do that, i think my measures on the switcher itself provided something like 5.08 volts. would that be too high? will measure on the pcb itself though just to make sure ...

Well done on the cap-kit Ully.....you're learning  !!! :D

well, i'm learning from the master :)
all i need is ... PONG - and a select few others: TOUCH ME, DRAGON'S LAIR, JOUST, ROBOTRON, MR DO, SAN FRANCISCO RUSH THE ROCK!!!

Etienne MacGyver

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Re: [Restoration] Gauntlet - warrior needs food ...
« Reply #59 on: September 27, 2010, 08:17:05 PM »
Huray ! , succes ully ! thats great news!

i had to be the powersupply, that fuse does not blow out of itself

 :spaceace: :spaceace: