KXTDA620 shelves not working

[Mbonjani323]

I have a KXTDE 600 with 2 KXTDA 620 expansion shelves that have stopped working .When i reboot the top shelf, the TDA620 expansion shelves still do not work .I have reset the machine so many times and even cleared memory and reloaded a new DGSYS file on the KXTDE600 thinking it might help. Could it be the the KXTD6110 main bus connection card or the bus S on the slave units that needs replacement ?

Please help
Regards

https://www.officephoneshop.com/panasonic-kxtda-6110-main-bus-connection-card-kxtda6110x/​

 

[Mike_K]

Which info do you have in error log ?

 

[The mitel guy]

You have bad hardware... test and replace if you can.. remove everything.. will it boot empty?

 

[The mitel guy]

Empty all non necessary components and reboot. Check battery backup and power cords also check cables and connections.
Replace button battery too if it has one.

 

[Mbonjani323]

Which info do you have in error log ?

yes I have Error code 43 with subcode 20001 -expansion shelf communication error & error code 43 subcode 40001 also expansion shelf communication error .These are the errors related to expansion shelf.I have attached files

 

[Mbonjani323]

Yes i have tried booting without all cards and still the slave units TDA620 dont link up with the master unit and i still get the same communication error.

You have bad hardware... test and replace if you can.. remove everything.. will it boot empty?

 

[The mitel guy]

Check jumpers if it has them? There might be some dip switches or jumper caps that determine the state of the card?I think something in the main controller is the cause because both nodes are offline..
Flash the firmware after replacing the cmos battery. Cr2032 most likely if it has one.
If not get a fresh firmware and flash it

 

[The mitel guy]

I Personaly suspect hardware failure in the main bay like the com chip for the bay link.
Maybe use a soldering station with hot air to reflow the chips.. one probably has a broken solder joint...or it just failed due to age
Capacitors are also known to leak if they're electrolytic. Did you inspect the main circuit boards for physical damage?Say lightning strike or blown out chip , just worth questioning

 

[The mitel guy]

Dark Reddish oil by capacitors is always a sign of a blown cap. Also a bubbled or raised top is bad too

 

[The mitel guy]

Also I had a mitel that had been overheated
Warped motherboard loosened the mainboard screws and heated with a hair dryer to get it to boot.. learned this from Xbox 360 red ring of death.. long story final recovery was possible using heat.
Also cpu's that are bad will boot if left in the freezer

 

[Mike_K]

yes I have Error code 43 with subcode 20001 -expansion shelf communication error & error code 43 subcode 40001 also expansion shelf communication error .These are the errors related to expansion shelf.I have attached files

The TDE600 power supply may not work correctly. Use the TDA620 power supply to check.

 

[Wanet Telecoms Ltd]

Does the Main Unit see the BUS card?

 

[Mbonjani323]

Does the Main Unit see the BUS card?

Yes it does

 

[Wanet Telecoms Ltd]

Then check cable.

 

[Mbonjani323]

Then check cable.

Swapped connection cables on both TDA 620 and still getting the same problem

 

[Wanet Telecoms Ltd]

Error code 43, subcode 40001 on a Panasonic KX-TDA system typically indicates a problem with the device's driver or hardware, potentially a failed device or a driver issue.