Another fine and interesting video. The need for proper capacitor discharge CANNOT be over-emphasized!!

It's a good practice to check the +13.4VDC output while working on this power supply board to ensure that it's working properly.

Damn, this channel is just as mesmerizing as "This Old House" on PBS.

Thanks, great video as always

thanks, this will be helpful for me! the 2385 power supply board has gained notoriety in the forums for overheating.

Great video. And it is really great finding someone who enjoys explaining in such detail the step by step process of what you do know. Thank you.

Great! for me rebulding 2325! TY!

Great video! You mentioned a 100 Ohm resistor for discharging the capacitors; how many watts should the resistor be? Thanks

Hi, my 2285B is humming from both speakers, using only headphones too. When i turn up the volume looks like there is a second humming in a higher frequency. When i select Phono, AM or FM and turn the volume up the humming gets louder. I got this Receiver not so long ago and looking inside seems to me that no service was done (but i'm not a specialist, so...). Do you have any idea what can i try to fix this?

Have you compared the accuracy of bringing a cap up to full voltage to check for leakage vs. using the esr meter? I'd love to use the meter if it's close rather than firing up my Sprague cap tester each time I check older large expensive caps.

Had a ligthning surge hit my house a day ago. I have a Marantz AV Pre Tuner AV 8801. There is power but no sound, no picture to the TV, and cannot bring up the menu screen on the receiver. Could you please let me know what I need to look at to solve this. Thanks!

Turned my Marantz 2240B on today as I do every day to listen to music, and I am not getting a humming sound coming from the speakers. It also is coming from the headphones. Tried turning knobs and pushing buttons, but the forums on AudioKarma are telling me to recap the PSU. Does that seem like the next logical step? Great video, by the way. Fascinated the whole way through!

Hi..Do you know if I can find parts for an Akai GX-630-DB?

Is it possible to discharge caps with meter at some position without frying it?

Would you service a Naim integrated amp?

sir do you know where I can buy Marantz 2245 fuse resistor on the power output transistor... look like white rectangle RGB5 0.2 ohms k nobble 44. pls. help...

The 2220B service manual doesn't have a section on audio adjustment...not sure what to do. 🤷🏼‍♂️

Hi Where can i get the info for the ratings of the caps to order for my 2270 power supply ? Super Video's as always. Thanks

Time to perform this surgical procedure on my 2275.

just wondering if you can shed some advice here. my marantz sr5008 has this popping-buzzing sound after about 5-10mins of use. some said its a capacitor problem. some said its the transformer.