Atari 1040 STF emory issue maybe?

[chriskgnr]

Hello to everybody!

 

A few days ago, my 1040 STF started to have an issue, like the one you see at the photos. What you see, it happens when the machine is cold and i switch it on. This lasts for the first 4-5 minutes(swintching on and off and reseting don't do any better) and after that everything is ok. The STF is full recapped(psu and mobo). Any ideas were to start checking?

 

Best regards,

Christos.

[Chri O.]

Just to let you know bomb error are not very useful for tracing a hardware issue.

 

Interesting:

4 bombs = means illegal instruction.

11 bombs = Line 1111 Emulator.

 

A line 1010/1111 Emulator Error occurs when the processor tries to execute an invalid instruction. The code 1010/1111 is not really relevant (the code depends on the invalid instruction you tried to execute).
The possible causes of line emulator trap errors are:
* A corrupted image (a Cisco IOS Software upgrade fixes this)
* Defective Flash memory or DRAM
* Software problem (see the Troubleshoot section for details)

[chriskgnr]

On 12/20/2020 at 9:30 AM, Chri O. said:

Just to let you know bomb error are not very useful for tracing a hardware issue.

 

Interesting:

4 bombs = means illegal instruction.

11 bombs = Line 1111 Emulator.

 

A line 1010/1111 Emulator Error occurs when the processor tries to execute an invalid instruction. The code 1010/1111 is not really relevant (the code depends on the invalid instruction you tried to execute).
The possible causes of line emulator trap errors are:
* A corrupted image (a Cisco IOS Software upgrade fixes this)
* Defective Flash memory or DRAM
* Software problem (see the Troubleshoot section for details)

Thanks for the infos! ?