Hello /diy/ I'm trying to repair an old boombox, the &q

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Anonymous
2017-08-06 07:29:01 Post No. 1223175
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Anonymous 2017-08-06 07:29:01 Post No. 1223175 [Report]

Hello /diy/
I'm trying to repair an old boombox, the "TCR-S90 II" by Sankei. This boombox has been rebranded a lot, so it has many namens. Since I'm new to electronics, I didn't even bother to repair the original amplifier, so I put one of those cheap Bluetooth amplifiers from amazon in it. This one to be exact:
https://www.amazon.de/dp/B01N3MVRMZ

Everything works fine, but since I'm not using the original amplifier anymore, I have to rewire the VU meter. However I have no idea how the micro controllers work. They Seem to be the "IR2E02" by "SHARP". Since it is a stereo VU Meter there is two of them.

Here is where I'm stuck. Do I need any additional parts? Can I just use the amplified output from the amp? How much power do the micro controllers need? I have a lot of buck converters laying around, but I'd have to order other parts.

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Anonymous 2017-08-06 10:08:18 Post No.1223307
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Anonymous 2017-08-06 10:08:18 Post No.1223307 [Report]

>>1223175
Doubt those are micro controllers of any type.
Probably just 7 segment driver. like the LM 3915.
See how the schematic rubs up against these. http://www.instructables.com/id/Simple-20-LED-VU-Meter-Datasheet-Guide/

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Anonymous 2017-08-06 10:09:55 Post No.1223308
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Anonymous 2017-08-06 10:09:55 Post No.1223308 [Report]

>>1223307
arg..
10 segment

I'm aware that Imgur.com will stop allowing adult images since 15th of May. I'm taking actions to backup as much data as possible. Read more on this topic here - https://archived.moe/talk/thread/1694/

I'm aware that Imgur.com will stop allowing adult images since 15th of May. I'm taking actions to backup as much data as possible.
Read more on this topic here - https://archived.moe/talk/thread/1694/