#100
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- Опубліковано 27 сер 2024
- This is a power supply, battery charger and footswitch for Roland V-Accordion FR-7 (and FR-7x). It did not power up, and had some sings of a previous repair attempt. The problem was traced to a dual rectifier diode on the secondary side of the power supply. After replacing the faulty component with a suitable equivalent the power supply seems to work properly.
Dual schottky diode MBR20100CT: www.digikey.co...
I have watched your content for a while and I like your systematic approach. Well done. It's a good habit to get into. I've a tendency to jump to a conclusion before getting all of the facts, a bad habit that can lead to longer repair times. I really need to work the problem and not guess... Thanks for a good solid set of repair videos. Really well done.
Such a wonderful approach to problem solving...cheers.
Simply amazing! I always learn something new from your videos
Thank you for another interesting video, always a pleasure to watch you troubleshoot. The wire across the fuse is very odd, especially since the fuse was not open.
Thanks, another very interesting video, as usual.
Nice repair, interesting find.
Awesome diagnosis! You make it look so easy.
Very nice work, especially without a schematic.
He can repair blind folded and with his feet tied together he's that good
I learn so much from these videos thank you...
Thanks for another interesting video.
Another great video. I always look forward to learning something on every video.
I would welcome a few comments in a video that explain how you find the repair manuals / schematics. Do you pay a fee to have access to a library, or do you just hunt the internet for each one?
Thank you.
Thanks
Great repair ! Thx.
How to repair the charging plug roland fr 7 x
Hello , I need a power suplly , battery charger and footswich for Roland V- Accordion FR-7 and a battery package. How can I get them, thanks
I have one of the power supplies with the blown diode at D3,but the pwm smd IC has blown its top off. I'm looking for the part number.
Sorry, no idea about the IC.
How much is this apparatus ?
OK, some outputs test shorted.
Then you test across the diode in-circuit: 0.8 ohms. That would fool me to think that it is a slightly odd diode junction, not a short.
Moin aus Hamburg !
Ich habe Problemme mit Fusspedale von Akkordeon Roland Fr 7x. Kannst du Deutsch oder Russisch verstehen ?
100 !!!!!
Thanks very good video. My fr7 footcontroller/ battery charger has just stopped working..... any suggestions. ? 🙏🙏
Hi there, my fbc -7 (switch mode power supply) problem repair people seem unable to fix. can you advise me re a possible remote battery charger. Without it I'm" dead in the water" or any advice .....🙏💥 tony
Perhaps, this can help (just found it, no idea how good this is)? elane-electronics.com/V-Accordion%20Accessories.html
And please don't throw away the original FBC-7. Sell it on eBay or something. I am sure lots of people would love to have it for repair.