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Joystick failure


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#1 JamesH OFFLINE  

JamesH

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Posted Sat Mar 9, 2019 5:18 PM

Have a joystick adapter and two modern Atari joysticks from a Flashback. Powered up my TI today and the up direction does not work, tried both sticks on both ports. Any tips on testing the adapter and the console? Any common cap or resistor failure that I can check for? Thanks.



#2 HOME AUTOMATION OFFLINE  

HOME AUTOMATION

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Posted Sat Mar 9, 2019 5:24 PM

you probably already know about the ALPHA LOCK key thing? :)



#3 jrhodes OFFLINE  

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Posted Sat Mar 9, 2019 5:28 PM

Dirty joystick port? And yes, make sure the alpha-lock is off (raised) when using a joystick.



#4 twoodland OFFLINE  

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Posted Sat Mar 9, 2019 5:30 PM

Have you eliminated a problem with the joystick itself?  Do you have the Atari Flashback console to test the joystick?  

 

Sometimes the problem can be with the contacts inside the joystick:

 

Atari Flashback 2 Joystick

 

Atari CX40 Joystick



#5 JamesH OFFLINE  

JamesH

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Posted Sat Mar 9, 2019 5:47 PM

you probably already know about the ALPHA LOCK key thing? :)

No, I didn't. And, yes, the caps lock was on. HAHA.


Edited by JamesH, Sat Mar 9, 2019 5:52 PM.

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#6 Ksarul OFFLINE  

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Posted Sat Mar 9, 2019 6:16 PM

We all make that mistake at least once. . .



#7 FarmerPotato OFFLINE  

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Posted Sat Mar 9, 2019 6:19 PM

No, I didn't. And, yes, the caps lock was on. HAHA.

 

Would you like to modify your console? It's beginner level soldering.  Read about fixing the alpha lock problem once and for all by adding a diode (follow link on that thread to MainByte article).



#8 JamesH OFFLINE  

JamesH

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Posted Sat Mar 9, 2019 6:22 PM

 

Would you like to modify your console? It's beginner level soldering.  Read about fixing the alpha lock problem once and for all by adding a diode (follow link on that thread to MainByte article).

Interesting. Maybe once I get my electronics bench outfitted and pickup an untested console for modification. Otherwise I want to keep my console as original as possible.



#9 --- Ω --- OFFLINE  

--- Ω ---

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Posted Sat Mar 9, 2019 6:44 PM

Interesting. Maybe once I get my electronics bench outfitted and pickup an untested console for modification. Otherwise I want to keep my console as original as possible.

 

It's a nice easy mod and doesn't even require removal of the keyboard, which now days can be problematic because those ribbon cables have been known to self-destruct from becoming so brittle over the decades.  It's a nice thing we have Arcadeshopper in our ranks, as he's started carrying replacement cables for unfortunate users.


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#10 apersson850 OFFLINE  

apersson850

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Posted Mon Mar 11, 2019 7:39 AM

The alpha lock diode thing was the first modification I did to my console. Over time, more would come...






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