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Author Topic: Atari Game Consoles  (Read 6162 times)
channelmaniac
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« on: September 16, 2008, 12:47:18 AM »

Model: Atari 2600
Symptom: Controller doesn't work properly

If the controller doesn't work properly and the problem stays with the board (doesn't follow the controller) then check for bent pins in the DB9 connector. These could be bent over or pushed back inside the shell to where they don't make good contact with the joystick.

If that's not it then replace the 6532 RIOT (RAM, I/O, and Timer) IC. Atari part number: CO10750
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channelmaniac
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« Reply #1 on: September 16, 2008, 12:47:57 AM »

Model: Atari 2600
Symptom: Resets at random

If the 2600 resets at random or if it resets when bumped then check for cracked solder joints on the power jack and clean the power switch. Dirty switches are a very common problem with this game.
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channelmaniac
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« Reply #2 on: September 16, 2008, 12:48:14 AM »

Model: Atari 5200
Symptom: garbage on screen, unit may hang

Replaced a bad 4516 DRAM IC. These are 5v only DRAMs, unlike the 4116 type that take +5, -5, and +12v to operate.
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channelmaniac
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« Reply #3 on: September 16, 2008, 12:48:33 AM »

Model: Atari 5200
Symptom: Missing sounds

Not all sound effects present on system. Replaced bad POKEY IC and tested game.
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channelmaniac
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« Reply #4 on: September 16, 2008, 12:49:07 AM »

Model: Atari 5200
Troubleshooting controller issues

The Atari 5200 is a troublesome unit when it comes to the controllers. They are junk. Commonly the keypad and fire buttons stop working due to problems with the flexible circuit board or the carbon nubs on the bottoms of the buttons. Replace these first. Replacements can be found on eBay.

If the keypads still are not working and you are SURE it's a system problem replace the POKEY IC.

The sticks themselves are analog and rarely give trouble. If you are SURE it's a system problem replace the 4052 IC first. If that's not it replace the POKEY IC.
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