Lindbergh Lockdowns and Bad Framerate

PCB problems and fixes
serantes
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Lindbergh Lockdowns and Bad Framerate

Post by serantes »

Hello
well, i dont know if much people here has a Lindbergh, but this may be interesting for the ones owning one.
I was experiencing some weird problems with my lindbergh ...
My Lindbergh came with a 6800 gfx card, i decided to upgrade it to a BFG 7800 to play newer games such as Race Tv, Initial D4, Lets Go Jungle and so ...
From time to time, i started to experiencing weird problems, it all started playing Lets Go Jungle, framerate started droping to 10fps and game became really slow, as slow that it wont acept credits :)
Then i started to get problems with the HDD, i heard the noise that you do when the hdd is dead (this click click)
At this point i thought that hangs and framerate drop were produced by a faulty hdd, so i tried another one, same result after some minutes, problems is that every IDE hdd i had arround came from old computers that may be ****, so i tried a 3rd hdd and same problem.
So i decided that the problem may be the gfx itself.

Then i looked at the original PSU and noticed that it was only 248W, WTF !!

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7800 BFG draws 193W so only 55W for the rest of the system :(

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Bought me a 600W ATX PSU and problem solved
I wonder why sega used a 240W PSU for such machine, still cant understand it
Last edited by serantes on December 23rd, 2009, 12:16 pm, edited 2 times in total.
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grantspain
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Re: Lindbergh Lockdowns and Bad Framerate

Post by grantspain »

thats extremely interesting,its incredible sega use such low power rated supplies
serantes
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Re: Lindbergh Lockdowns and Bad Framerate

Post by serantes »

grantspain wrote:thats extremely interesting,its incredible sega use such low power rated supplies
i can take you a picture of the original PSU Grant, i couldnt believe it aswell, psu is the original one that has jvs and atx switch.
even not having any problems with the original 6800 card, 240w is really low for any computer and even worst for a gaming computer

And before some1 asks ...
the original PSU has two sets of cables comming from the psu to the filter board.
I checked the filter board with the multimeter and both connectors are bridged, so you only have to give power to the atx 24 pin :)
Cheap and fast to fix :P
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grantspain
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Re: Lindbergh Lockdowns and Bad Framerate

Post by grantspain »

if you sent that to sega for repair you would have a bill for at least £900 :o
serantes
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Re: Lindbergh Lockdowns and Bad Framerate

Post by serantes »

grantspain wrote:if you sent that to sega for repair you would have a bill for at least £900 :o
well, you know, i should work at sega, and not for this thing, i am sure i know more about the lindbergh than anyone working there :)
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grantspain
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Re: Lindbergh Lockdowns and Bad Framerate

Post by grantspain »

serantes wrote:
grantspain wrote:if you sent that to sega for repair you would have a bill for at least £900 :o
well, you know, i should work at sega, and not for this thing, i am sure i know more about the lindbergh than anyone working there :)
that is more than likely true,i just spent 1 month working for sega and was basically disgusted by their customer service and support so i left
sega don't want to tell people how to fix their boards,they want you to send them in so they can make a massive profit
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Re: Lindbergh Lockdowns and Bad Framerate

Post by serantes »

grantspain wrote:
serantes wrote:
grantspain wrote:if you sent that to sega for repair you would have a bill for at least £900 :o
well, you know, i should work at sega, and not for this thing, i am sure i know more about the lindbergh than anyone working there :)
that is more than likely true,i just spent 1 month working for sega and was basically disgusted by their customer service and support so i left
sega don't want to tell people how to fix their boards,they want you to send them in so they can make a massive profit
Well the thing is that i could tell them things that Sega japan wont tell :)
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andygeezer
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Re: Lindbergh Lockdowns and Bad Framerate

Post by andygeezer »

I am 99.99% sure that only NEC Japan repair the Lindbergh mainboards, not Sega at all.. What **** me off the cost in Japan for a Lind repair is around £170.

The industry is dying, and it is been made worse by crazy spare part prices and lousy technical advice. I can't grumble, because I'd be not as busy as I am!
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Re: Lindbergh Lockdowns and Bad Framerate

Post by serantes »

andygeezer wrote:I am 99.99% sure that only NEC Japan repair the Lindbergh mainboards, not Sega at all.. What **** me off the cost in Japan for a Lind repair is around £170.

The industry is dying, and it is been made worse by crazy spare part prices and lousy technical advice. I can't grumble, because I'd be not as busy as I am!
It sux to come as latter in this hobby and live in Spain, i would be a nice competor in uk Andy, but even that way we would find a common path :P
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Re: Lindbergh Lockdowns and Bad Framerate

Post by Cageman »

Sorry for reactivating this ancient thread, but I am having the exact same issue with my Afterburner Climax.. it used to work fine, but now has severe frame-skipping.. same issue as described earlier; even pressing START sometimes not registers (need to hold down button for Lind to 'see' it).

PSU is the original one, 248W..

Any tips? Why would it start this issue now..? Cab is multiple years old, and never had any power issues..

Thanks

EDIT: small update. Just started the cab again, game now starts, but is in JAPANESE!?? And I have an EXPORT mobo..? WTF..?
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Re: Lindbergh Lockdowns and Bad Framerate

Post by andygeezer »

Cageman wrote:Sorry for reactivating this ancient thread, but I am having the exact same issue with my Afterburner Climax.. it used to work fine, but now has severe frame-skipping.. same issue as described earlier; even pressing START sometimes not registers (need to hold down button for Lind to 'see' it).

PSU is the original one, 248W..

Any tips? Why would it start this issue now..? Cab is multiple years old, and never had any power issues..

Thanks

EDIT: small update. Just started the cab again, game now starts, but is in JAPANESE!?? And I have an EXPORT mobo..? WTF..?
The actual intro isn't real-time BTW, it's an SFD file at 30fps - so not exactly smooth.

There is a bug with 7800GS video cards - a lot of people make the mistake of buying them from eBay!! Bad news..

The Sega 7800GS uses a different model of 7800 GPU, one I've only ever seen on Reference Nvidia cards and Sega ones, you can spot the original Sega one as it has a two pin prong at the back, other ones are prone to having a "bios bug" the issue is where the game will run really slow (actually the issue I figured out back in my early Lind days - it's to-do with throttling, there is a situation where the video card thinks it is overheating and will go into throttle mode, even though the core temp is under 40C).

The Japanese issue is more serious - sounds like the eeprom on the mainboard has become faulty - if you have corrupt eeprom data, or remove the chip completely, it will turn the machine into Japan region and give the mainboard a generic serial number.
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Re: Lindbergh Lockdowns and Bad Framerate

Post by Cageman »

Thanks Andy.. Well.. my 7800GS is a standard one (MSI) as well. I was having issues with the original one (artifacts). Did not know they were different from the SEGA equivalent.

I guess I should be ordering a new video card.. about the Japanese thing..: After turning off and on it is now english again.. hmm.. woulld a new eeprom solve such a thing? Or do you think there is a more severe issue..?
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Re: Lindbergh Lockdowns and Bad Framerate

Post by andygeezer »

Cageman wrote:Thanks Andy.. Well.. my 7800GS is a standard one (MSI) as well. I was having issues with the original one (artifacts). Did not know they were different from the SEGA equivalent.

I guess I should be ordering a new video card.. about the Japanese thing..: After turning off and on it is now english again.. hmm.. woulld a new eeprom solve such a thing? Or do you think there is a more severe issue..?
My advice would send it in for a service, a new hdd and new video.. Once serviced in a home environment it should be good for years, in a heavy arcade user it would be good for 12-24months, depending if the arcade actually cleaned the fans out tri-monthly!!
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Re: Lindbergh Lockdowns and Bad Framerate

Post by Cageman »

It won't need cleaning, as it is very, very clean already ;-)

Andy, can you send a quote to me? I'll PM you..
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Re: Lindbergh Lockdowns and Bad Framerate

Post by chriso »

Done this mod to a House of the Dead 4 and a Lets go Jungle so far.
Both require the JVS power plug to be cut off and replaced with a 3.5"IDE power socket to mate to the PC psu.

In the UK you can use 230V or 110V psu as both voltages are available in the cabinet.

Makes carrying spares simpler as on PSU will now fit all modern Sega gear.