Bang & Olufsen Beolab Penta - Repair and restoration

Описание к видео Bang & Olufsen Beolab Penta - Repair and restoration

This video is an in-depth look at how I serviced and repaired a Bang & Olufsen Beolab Penta amplifier. This video attempts to cover in extensive detail how to replace the following components on a Beolab Penta amplifier:
Rewire and replace the plug
Replace plug fuse
Check/Replace internal glass fuses
Replace main PCB electrolytic capacitors
Replace trim pots
Replace OPAMP
Replace 6 x large transistors
Renew all heatsink paste
Replace 2x big capacitors in power supply

Chapters:
0:00 Introduction
1:19 The theory behind the repair
7:21 Removing Amplifier from the speaker
11:27 Rewire & replace the plug and replace the plug fuse
27:22 Check/Replace internal glass fuses
36:20 Replace main PCB electrolytic capacitors
2:17:23 Remove and replace the OPAMP
2:41:15 Remove and replace the trim pots
2:52:33 Remove large transistors and replace thermal paste
4:01:16 Replace PSU capacitors
4:44:26 Calibrating the trim pots
5:04:48 Reassembling the speaker
5:08:44 Testing the speaker
5:10:50 Bonus footage
5:12:09 Conclusion

Constructive feedback is welcomed in the comments. Thank you for taking the time to view.
Like what you see? Say thanks by buying me a drink! https://www.buymeacoffee.com/retrobri...

All the below links are in order of appearance. Amazon links are affiliated.

Tools:
Draper screwdriver set:
https://www.tlc-direct.co.uk/Products...
Multimeter:
https://www.diy.com/departments/digit...
Multimeter leads:
https://amzn.to/3iNaDEL
Knipex sidecutters:
https://www.tlc-direct.co.uk/Products...
Wire strippers:
https://www.amazon.co.uk/gp/product/B...
Ferrule Crimper:
https://amzn.to/3eYoJSO
Soldering Iron:
https://amzn.to/3rxK5eO
Long nosed pilers:
https://www.therange.co.uk/diy/hand-t...
Mobile kit:
https://amzn.to/3eTW0yc
Desoldering station:
https://amzn.to/3i5XQy6
Capacitor tester:
https://amzn.to/372aAQ8
ESD Brushes:
https://amzn.to/3y57TZO
Microscope:
https://www.banggood.com/MUSTOOL-G120...
Picks:
https://amzn.to/2TBgMLP
Sidecutters:
https://amzn.to/2URHU9P

Parts:
UK Plugs:
https://amzn.to/371V32I
Fuses:
https://www.toolstation.com/plug-top-...
Ferrules:
https://www.amazon.co.uk/gp/product/B...
Crossover kit:
https://www.beoparts-shop.com/product...
PSU Caps:
https://www.beoparts-shop.com/product...
Cap kit:
https://www.beoparts-shop.com/product...
Glass fuses:
https://www.beoparts-shop.com/product...
https://www.mouser.co.uk/ProductDetai...
Replacement transistors:
https://www.mouser.co.uk/ProductDetai...
https://www.mouser.co.uk/ProductDetai...

Cleaning products and consumables:
Food bags:
https://www.ikea.com/gb/en/p/istad-re...
Electrical tape:
https://www.screwfix.com/p/3m-temflex...
Flux
https://amzn.to/3i0zypg
Solder:
https://uk.farnell.com/multicore-loct...
Gloves:
https://www.screwfix.com/p/site-kf440...
IPA:
https://amzn.to/3kXGHsq
Cotton buds:
https://amzn.to/3rEhSmr
De-Oxit:
https://amzn.to/3l0p3nJ
Silicone Grease:
https://www.amazon.co.uk/servisol-AV-...
Heatsink paste:
https://amzn.to/371VkCM

----- AFFILIATED LINKS/ADVERTISING NOTICE ------
All links are Affiliated where possible.
When you click on links to various merchants posted here and make a purchase, this can result in me earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network & Amazon.
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