Xtreme Gaming Network

Simulation Racing Leagues => Assetto Corsa => Topic started by: AJ on March 18, 2016, 12:02:21 PM

Title: Power supply for G25/G27 - Where to find?
Post by: AJ on March 18, 2016, 12:02:21 PM
Anybody know where I can get a replacement power supply for my G25 (same as G27)?

I have a problem with mine. It started out that my G25 would turn itself off and back on whenever certain light switches in my house were turned on or off regardless of where I had it plugged in, and has now progressed to the point where it just does it randomly. Happened last night on the 2nd last lap of race 1, luckily I was lonely on the track at the time and it didn't cause issues for anybody else, but it ruined my chance of a 5th place finished.

I have a mate who recently bought a second hand G27 and he brought it around here for testing purposes and it didn't have any problems, so we swapped power supplies and then my one was fine and his started doing the same thing, so it seems the power supply is at fault.

Problem is, I can't seem to find a replacement unit for any kind of reasonable price in Australia (ie. they're expensive enough to make me consider just buying a second hand G27), or they're reasonably priced but overseas.
Title: Re: Power supply for G25/G27 - Where to find?
Post by: Rolz on March 18, 2016, 12:17:48 PM
No chance of getting a universal powersupply from Jaycar?

Just match the output voltage, amps and plug, or manually change plug yourself?
Title: Re: Power supply for G25/G27 - Where to find?
Post by: AJ on March 18, 2016, 12:34:02 PM
Yeah I've had a look and it doesn't look like they have anything that can do the 1.75A that this one does! (Well, they've got a 2.7A one, but it's like $60, which is in that "might as well buy a 2nd hand G27 area...)
Title: Re: Power supply for G25/G27 - Where to find?
Post by: slideways on March 18, 2016, 12:43:39 PM
Not local mate. Can get one from the states but postage is gonna be $30. Couple G27's going on feebay pretty cheap. Might be the best option as you get spare pots etc....
Title: Re: Power supply for G25/G27 - Where to find?
Post by: Rolz on March 18, 2016, 12:44:26 PM
I guessed voltage was 12v

but you can see there is some stuff out there.

http://www.ebay.com/itm/RADIO-SHACK-12VDC-1-75AMP-UNREGULATED-LIGHTER-ADAPTER-POWER-SUPPLY-22-502-/182035866919

Title: Re: Power supply for G25/G27 - Where to find?
Post by: AJ on March 18, 2016, 12:50:52 PM
Yeah they're actually 24Vdc 1.75A
Title: Re: Power supply for G25/G27 - Where to find?
Post by: AJ on March 18, 2016, 01:06:10 PM
This seems to be the best option I've found so far

http://www.ebay.com.au/itm/24V-NEW-AC-Adapter-For-Logitech-G25-G27-APD-DA-42H24-Power-Supply-Cord-Charger-/351111165624

If I can find something that would be quicker than 3-4 weeks I'd be much happier.
Title: Re: Power supply for G25/G27 - Where to find?
Post by: AJ on March 18, 2016, 01:41:30 PM
Do you reckon this would do the job? I don't know enough about electronics to be sure  :-\

http://www.radioparts.com.au/product/33774341/sm2420-24v-dc-2a-power-supply-switchmode-2.1mm-cen-tve
Title: Re: Power supply for G25/G27 - Where to find?
Post by: rooshooter on March 18, 2016, 02:19:14 PM
Do you reckon this would do the job? I don't know enough about electronics to be sure  :-\

http://www.radioparts.com.au/product/33774341/sm2420-24v-dc-2a-power-supply-switchmode-2.1mm-cen-tve
Yes ,this would be OK, higher amperage is fine. Just verify it is 240 ac input, does not say in spec
but as is sold in Australia should be 240AC.
Title: Re: Power supply for G25/G27 - Where to find?
Post by: Rolz on March 18, 2016, 02:56:03 PM
Yes ,this would be OK, higher amperage is fine. Just verify it is 240 ac input, does not say in spec
but as is sold in Australia should be 240AC.

+1
Title: Re: Power supply for G25/G27 - Where to find?
Post by: rooshooter on March 18, 2016, 02:56:18 PM
These are are a possible good replacement for G25/27 pedal pots.
http://www.radioparts.com.au/product/33412208/3aw-10k-10k-3-watt-wire-wound-pot-potentiometer#.Vut7gubmzFs
I would say worth a try.
Title: Re: Power supply for G25/G27 - Where to find?
Post by: AJ on March 18, 2016, 03:31:46 PM
Do you reckon this would do the job? I don't know enough about electronics to be sure  :-\

http://www.radioparts.com.au/product/33774341/sm2420-24v-dc-2a-power-supply-switchmode-2.1mm-cen-tve
Yes ,this would be OK, higher amperage is fine. Just verify it is 240 ac input, does not say in spec
but as is sold in Australia should be 240AC.

Yep, Aussie product too.
Title: Re: Power supply for G25/G27 - Where to find?
Post by: AJ on March 18, 2016, 03:35:10 PM
OK I've ordered that one. Fingers crossed!
Title: Re: Power supply for G25/G27 - Where to find?
Post by: AJ on March 22, 2016, 05:34:21 PM
Got the new power supply, problem still exists.

I don't get it.
Title: Re: Power supply for G25/G27 - Where to find?
Post by: Guybrush Threepwood on March 22, 2016, 06:03:57 PM
Maybe its the wiring in the G25/27?
Title: Re: Power supply for G25/G27 - Where to find?
Post by: rooshooter on March 22, 2016, 06:12:08 PM
Got the new power supply, problem still exists.

I don't get it.
Can you do a swap with your mate again, for a prolonged period, to firmly establish the
power supply is the problem. Also check the power supply connector (male) is an exact match
for the connector in the wheel (female).
Title: Re: Power supply for G25/G27 - Where to find?
Post by: AJ on March 22, 2016, 06:30:01 PM
Connector is 100% right. Works perfectly except has the same problem that it did with the other power supply, but I don't understand what else could be the problem.

Unless it's a USB issue? Maybe there'a slight power drop on the USB bus on the motherboard when those certain switches in my house are turned on/off? But none of my other USB devices have any problems? I'm really lost.
Title: Re: Power supply for G25/G27 - Where to find?
Post by: rooshooter on March 22, 2016, 06:55:35 PM
 At this stage of finding the source of the problem you will have to go back to the power supply.
If you do a swap with you mate that will eliminate the power supply. I do not believe USB buss load is a factor.
Are you using a power board that could be dodgy ? Solving these sorts of problems is logical process where
sometimes a process of elimination is the only way to do it.
Title: Re: Power supply for G25/G27 - Where to find?
Post by: AJ on March 22, 2016, 07:02:35 PM
Yeah mate, I'm with you on the process of elimination.

I am using a power board, but I've tried without it and have tried plugging it into many places around the house (upstairs, downstairs, garage, etc, without the powerboard and the problem remains. That was my first suspicion when the problem first arose.

The only reason I suspected USB to maybe be a factor is that it's really the only constant in the equation.

Title: Re: Power supply for G25/G27 - Where to find?
Post by: rooshooter on March 22, 2016, 07:19:21 PM
Had you changed anything else prior to this problem occurring? think carefully.
Always return to the scene of the crime! I know it can sometimes seem irrational but
you can usually find the problem. Just stay calm and work your way through the problem.
Title: Re: Power supply for G25/G27 - Where to find?
Post by: AJ on March 22, 2016, 07:25:09 PM
Don't worry rooshooter, troubleshooting in this sort of manner has been my job for the large majority of the last 20 years, so I know exactly what you're saying.

I've been thinking about it for weeks and I honestly can't think of anything that has changed. The only thing even remotely related at all was that we had a new dishwasher installed, but that was at least 2 months before the issue arose.
Title: Re: Power supply for G25/G27 - Where to find?
Post by: rooshooter on March 22, 2016, 07:51:58 PM
Don't worry rooshooter, troubleshooting in this sort of manner has been my job for the large majority of the last 20 years, so I know exactly what you're saying.

I've been thinking about it for weeks and I honestly can't think of anything that has changed. The only thing even remotely related at all was that we had a new dishwasher installed, but that was at least 2 months before the issue arose.
I truly sympathise  AJ (bloody PCs), you can see how consoles became so popular. Oh and
don't forget to replace the dishwasher. ;D
Title: Re: Power supply for G25/G27 - Where to find?
Post by: AJ on March 22, 2016, 11:32:15 PM
I think I might have isolated it to a USB Extension cable...
Title: Re: Power supply for G25/G27 - Where to find?
Post by: Bird on March 23, 2016, 08:35:39 AM
Back in the days when I've worked in hardware, we had a client with a computer that had a floppy drive fault.  We've changed it on the spot; nothing.  We've changed every imaginable component on the spot; nothing.   The fault remained.

Took it back to the workshop - fault gone.

Took it back to the client - all good.  Until 2 weeks later...

A new computer solved the problem.

They say it's all just bits and bytes, but I tells ya, it's sometimes black magic.
Title: Re: Power supply for G25/G27 - Where to find?
Post by: AJ on March 23, 2016, 09:01:55 AM
Agreed!