This Sansui G-5500 came to me because it blows the 5A fuse as soon as you turn it on. Through some methodical troubleshooting, it turns out one of rectifier diode packs is bad. Not having a legitimate replacement on-hand, I cobbled together some diodes to confirm if that's the only problem.
00:00 Opening it Up
01:57 Failing to See Obvious Fuses
01:44 Looking Underneath
02:26 Initial Investigation
03:44 Testing Outlets
05:03 Testing Output Stage
06:11 Testing Filter Caps
08:37 Disconnecting the "Bad" Capacitor
09:18 Not a Bad Cap After All
11:18 Hunting the Short
13:38 Getting Warmer
14:54 Investigating the Rectifier
16:16 We have a Winner
17:03 Blowing Up some Diodes
18:19 WTF is That and Will it Actually Work?
19:18 First Successful Power On
20:48 First Sound Test
22:25 Outro
Useful products from the video:
• Toshiba 5151 Dual Diode Pack: ebay.to/3pTUosr
• Wowstick: amzn.to/3pTSZlF
• Hakko: amzn.to/3pSozjK
• Pre-Fluxed Solder Wick: amzn.to/3lYAWIv
• Solder Sucker: amzn.to/337xCTT
• 15A Schottky Diodes: amzn.to/35Vf9ff
PowerPCMe:
• KZitem: • PowerPCME : Numérique ...
• Bandcamp: powerpcme.bandcamp.com/
• Spotify: open.spotify.com/artist/3X8gi...
Edited with ShotCut:
• www.shotcut.org/
As an Amazon & eBay Affiliate, I receive commission for qualifying purchases.
Негізгі бет Тәжірибелік нұсқаулар және стиль Sansui G-5500: Bad Rectifier Blowing Fuses
Пікірлер: 2