NAD 3020A Recap and Repair скачать в хорошем качестве

NAD 3020A Recap and Repair

This amplifier was brought to me from a family member. It's not been used for a while but had a typical start-up whump sound. A replacement capacitor kit was purchased from a supplier in Germany. It sounded an easy task and started off that way but a fault developed half way through, causing imbalance and oscillation on the right hand channel. This fault turned out to be a dry joint, once a blanket resoldering was carried out, the fault cleared and the amp performed perfectly. Hope you enjoy my frustrations with this amplifier, it caused a lot of head scratching. CONTENT: 00:00 - Introduction 02:38 - Marking the capacitor polarities 07:25 - The board capacitor markings - odd symbols 11:14 - Recapping begins 13:05 - Half-way through - first test 14:35 - Recapping complete - BUT!!! 16:28 - A new fault appears... 18:09 - Beginning half-split diagnostics 20:20 - Bypassing the pre-amp stages 23:10 - Half-Split again at the Volume Control 28:14 - The circuity is confusing (Mono voice over on the LEFT ONLY). 29:27 - Continuing diagnostics 33:25 - Test and checks off camera drive me crackers! 36:12 - How I found and fixed it!! 38:04 - Reassembled and final tests 44:14 - The End. Please Like and Subscribe to the channel:    / @chaslarge   You might also like to support me on Patreon: https://www.patreon.com/bePatron?u=43... I have a Discord Server now too:   / discord   MUSIC: Google Library: Find Your Way Beat - Nana Kwabena Can I Tell You a Secret - TrackTribe Just Do It - RKVC GRAPHICS & ANIMATIONS: End: https://pixabay.com/users/tommyvideo-...