ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Hi
I have a Beomaster 6500 on the table with a quite strange problem.
It came in with defective uP. After replacing it, performing a reset - and replacing the standard electrolytes capacitors around, it was working, no problems. Unit returned to the owner.
After some days, I got it back again. Left output amplifier transistors and emitter resistors, burned, also the processor was dead. I replaced the transistors, emitter resistors and the 100R bias trimmers - and the processor. Unit working again - but.... will not accept input from the remote (IR).I can use the front switches, turn it on, mute, step etc. - but that's it. Reset not possible.
Any suggestions?
I would very much like to receive a BIN file with the EPROM software, then I will burn a new to see if this helps.
I can't understand why the uP died, and i can't understand why this is (or is not??) related to the output transistors dead. It could be just a bad BIAS trimmer - and if the processor died first, the safety circuit was not able to shut the unit down - and then the transistors dies.
Kind regards, Peter
Is there really nobody out there that can help me with a bin/hex file of the EPROM in the 6500?
Peter
Hi Peter
Never heard of somebody here in the forum who worked with bin/hex files. I suggest that you place an ad in the BeoWorld Private Wanted Forum for the EPROM. The software version of the required EPROM might be helpful.
Best regards
David
Hi,
I believe I have the required file. I have sent you an email.
/Dennis
Check the backup battery if you have not already done so. If you have replaced it, then the unit may be in option 0 due to loss of nvram settings.
Set option to 1 to reenable remote, then follow the procedure in service manual to reset nvram properly and set up the offset adjustment values for tuner.
I have software version 1.5 on file if you require.
Thank you very much - I will appreciate that! Can you sent it on email to me? Sent me a PM.
And you are right: it was an activation of the option 0 that was the problem. I have replaced the uP, eprom and NVram before but never experienced that it chanced the option. A reset of the uP solve the problems with wrong balance, Loudness ON, etc. - but no problems with options.
So the problems was solved - everything is working.
I got two versions of the software now, I will put them online with yours for all to "enjoy" ;-)
Dear Peter Andersen,
any chance Ypou could share the 2 versions of Software IE. *.BIN files for Beomaster 6500 - Please?
a1greatdane
aka
Sven R. Olsen