Mushihimesama Pcb RTC/EPROM problem?

PCB problems and fixes
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thechop
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Mushihimesama Pcb RTC/EPROM problem?

Post by thechop » December 1st, 2018, 5:36 pm

Got a Mushi pcb here that I got a while ago which has a problem saving Ultra( can put the code in and play it until you power down and have to re-enter)
Also when it boots up and gets to the checking EEPROM screen it says initializing instead of checking so it's as if it initializes on every power up so even once powered up if you alter the freeplay, continues etc once you 'save and exit' it just initializes again.
The time and date real time clock also is goofy as its 20FF/FF/FF FF etc
So I'm assuming the RTC/EEPROM at U10 may be the problem.
This little beggar

Image

Been playing it for the last month or so and all modes are fine and I've 1'cc them all :lol: to the end so not really a massive problem and as these non bug fixed high scores are all fcuked anyway just wondering if any learned folks think changing U10 might fix it or just not worth **** the board up for, well nothing really as it doesn't really affect anything.
Be nice to fix it and ultra to be unlocked tho :lol:
Needless to say replacing that surface mounted component is way beyond my meagre skills.
This is a spare board I got for basically the artset :palm: so if anyone with skills may know how these tick it'd be appreciated.

Cheers

Pete.
kernow wrote:
Cmon chop I wanna see your manly bricklayer arms.

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markedkiller78
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Re: Mushihimesama Pcb RTC/EPROM problem?

Post by markedkiller78 » December 1st, 2018, 6:09 pm

What revision is it out of interest?
Image

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thechop
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Re: Mushihimesama Pcb RTC/EPROM problem?

Post by thechop » December 1st, 2018, 6:28 pm

Non bug fixed, no periods.
kernow wrote:
Cmon chop I wanna see your manly bricklayer arms.

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