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#21 Mavroz

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Posted 24 March 2017 - 04:49 am

Fairly certain MPU5 used a lithium coincell of the type which IS rechargeable?


Mpu 5 batteries are not rechargeable.

#22 chris_newton

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Posted 24 March 2017 - 07:53 am

Ok so later on today i am going to try and get tp the MPU, i know that not many people have had much experience with a MPU6 but believe me you will all know way better than me lol.

 

I have attached a pic to this post of the board...I have cirlced 2 screws but i am not sure if these are the ones i should be un screwing?  it looks like if i unscrew these then the whole box will just come away from the silver plate its attached too?

 

I assume i need to some how get into the actual casing but when having a quick look this morning i could not see how this comes apart.

 

Thanks again for all your help on this

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#23 Mavroz

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Posted 24 March 2017 - 08:34 am

Those screws look like they hold the mpu on the back plate.

Edited by Mavroz, 24 March 2017 - 08:35 am.


#24 chris_newton

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Posted 24 March 2017 - 08:44 am

yea thats my understanding too, i just need to work out how to get into the casing



#25 Mavroz

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Posted 24 March 2017 - 10:54 am

Thanks for the picture Chris. The mpu 6 battery is a coincell in a dedicated holder, where as mpu 5 Is a coincell that is soldered directly to The board.
Both the same but one is easier to change than the other. Is there a watchdog circuit that needs resetting after a battery change on mpu6 a la mpu5?

I guess the casing is fairly easy to get into on the mpu6 as the batteries are designed to be changed easily.

#26 chris_newton

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Posted 24 March 2017 - 10:58 am

I am not sure about anything that needs resetting after i put battery in....when i get home tonight i will have a go at getting casing off and changing the battery..if i manage that and i hit another snag (i.e something needs resetting) then i will of course come back and ask  :cute:



#27 chris_newton

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Posted 24 March 2017 - 11:42 am

Just been told that to get the casing off i will need to remove the it from the board (unscrewign the screws in red circles) then on the back there should be more screws that i take out and it should pull apart..i will try this and report back



#28 aaamusements

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Posted 24 March 2017 - 12:56 pm

Mpu 5 batteries are not rechargeable.


You're quite right, don't know how that got into my head!
Probably because the battery used on MPU5 is slightly unusual.

#29 Mavroz

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Posted 24 March 2017 - 01:37 pm

You're quite right, don't know how that got into my head!
Probably because the battery used on MPU5 is slightly unusual.

 

Hahah Alex, if it is anything like me, it is old age creeping up faster and faster.



#30 chris_newton

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Posted 24 March 2017 - 03:50 pm

ok just to let you all know and anyone else who stumbles across this thread, i did it !

 

The 2 screws in the red circles pulled it away from the machine then on the back there is 2 screws diagonal to each other...i undid these and it pulls apart,(see photo)

 

I then replaced the battery CR2032 and then tried a reboot...i then had to do the following

 

Turn machine on with the up and down button pressed, press enter to get into self test, select test ram, it should give you a result, reboot machine. 

 

Then rebooted again and had to put date and time in then it came on and all working fine!

 

Many Thanks for all your help on here !

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#31 Mavroz

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Posted 24 March 2017 - 04:18 pm

Excellent, well done.



#32 aaamusements

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Posted 26 March 2017 - 09:46 pm

You're quite right, don't know how that got into my head!
Probably because the battery used on MPU5 is slightly unusual.

  

Hahah Alex, if it is anything like me, it is old age creeping up faster and faster.


Haha yes I was started to think I was going a bit mad! Fortunately I've since remembered that there is one tech that does use a rechargeable lithium coincell battery soldered into the board, and it's Maygay Eclipse. So that's probably what I was wrongly remembering...




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