Re: Marshall Stanmore Repair
D8: Fmg23s
u5: Lm317t
SkyHeart
Member
Last Activity: 04-19-2025, 05:04 PM
Joined: 07-29-2022
Location: Södertälje
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Re: Marshall Stanmore Repair
can you post a picture of the location?...Leave a comment:
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Re: Marshall Stanmore Repair
Hello Guys,
it's me again trying to fix this Stanmore speaker mess, after changing a lot of components I was able to fix the power issues, the speaker comes on, lights are on, Bluetooth connects fine, when I play music sound comes for few seconds then I will hear 2 or 3 loud static from the speaker and sound disappears.
if anyone had a similar issue and was able to fix it please do share the information, I did change the TAS5342A IC.Leave a comment:
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Re: Marshall Stanmore Repair
I think it's an Inductor not a resistor, for me it's the first time I see an Inductor in the shape of a resistor
it's been a while since last time I worked with Electronic it's been more than 15 years.
thanks for the help guys.Leave a comment:
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Re: Marshall Stanmore Repair
Hi Folks,
I was finally able to find the issue with my Stanmore, after changing the 12v regulator which is in the middle of the PCB (KIA 7812A) i found out that it's not getting any input current, had to remove it again to trace the input which is feed by L7 it looks like a normal resistor it was a bit toasty, I'm not sure why the numbering on the PCB says L7.
my issue is number 2 from the first post, everything works without sounds output.
I changed that L7 with a normal 47ohm resistor and I got sound.
attaching...Leave a comment:
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Re: Identifying a Component
Thanks for the help guys, it does look like S80 SMD bridge which I did order some from mouser.comLeave a comment:
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Identifying a Component
Hi guys,
I would be very grateful if someone can help identify the component in this picture.
it has 4 pins one of pins gone off while removing it from the PCB, the PCB is a Motor controller for adjustable Desk.... -
Re: Marshall Stanmore Repair
Thank you kros for the information,
I got the amplifier IC's from mouser.com which is a very known website for selling electronic parts so I don't think they are fake....Leave a comment:
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Re: Marshall Stanmore Repair
Hey @Chris_J
were you able to fix your issue?
I also replaced 7812 IC and the D7 including the TAS5342A IC, R23 and 3.3 cap but still no sound, I can pair with bluetooth and everything seems to work but still no sound coming....Leave a comment:
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Re: Marshall Stanmore Repair
Thank You @kros, yes I found it on ebay after posting and I did order it, though i'm not sure if the cause of the issue is from that IC but it's good to have it just in case
Thanks again....Leave a comment:
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Re: Marshall Stanmore Repair
Hey Guys,
has any one found any diagram or schematics for this PCB?
I have 2 of this Stanmore on my table with the same issue, both light up and everything work except from no sound output.
the area around OB2269 looks a bit hot but I wasn't able to find the OB2269 in our local stores, couldn't find it on digi-key as well, any help or more information is appreciated.Leave a comment:
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