SUBOR Xiaobawang SB-926 Capacitor Replacement

Started by dongbeijockey, November 17, 2023, 05:50:59 pm

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dongbeijockey

I recently purchased 2 of the SUBOR (xiaobawang 小霸王) Famiclone SB-926 with keyboard (zhongyingwen diannao xuexi ji 中英文电脑学习机). They didn't work at first (controller port problems, cold solder joints, etc) but after a good cleaning and solder reflowing they both came back to life. Last weekend for fun I swapped out the capacitors on one of the systems with rubycon capacitors. I checked the old caps and their ESR and capacitance (uF) were not good. Here is a list of the caps I replaced.

The AV/power board I replaced 5 caps
(1)10uf 25v
(2)1uf 50v
(2)100uf 16v

The cartridge board had 2 caps
(2)1uf 50v

The AV board was fun to remove (the image is before i swapped the caps). I included some photos.