2215B won't power up (I blew something)

Just popping in to let you all know that I have not gone anywhere and still plan to see this through until it is resolved. Got my Mouser order in with new transistors and and new caps ( for after the unit is back to some semblance of working order).
Unfortunately right now things are rather busy in the rest of my life and I have to let this sit for at least another couple of weeks.
My next post should be after the new output transistors from Mouser are installed and hopefully it will be good news.
Thanks again to all for you continued assistance. I promise that your time and effort have not been wasted, and while it may be some time before I am knowledgeable enough to help others as you have helped me that is where I'd eventually like to be.
 
Thanks for the update. Just make sure you put all the parts somewhere safe while its waiting. Its easy for stuff to vanish during these times.
 
Thanks for the update. Sometimes as soon as a solution is found we never hear anything else. It's nice to have someone that cares... I guess we'll keep you. :)
 
Well this repair is now indefinitely halted. The P700 is now in 3 pieces. I managed to find some extra time this eve and while working on it the was an accident - thanks to my sister-in-law's dog who we are taking care of while they are away.
So I am going to try and source a replacement board for it, but until I can this repair is stalled.
 
Well this repair is now indefinitely halted. The P700 is now in 3 pieces. I managed to find some extra time this eve and while working on it the was an accident - thanks to my sister-in-law's dog who we are taking care of while they are away.
So I am going to try and source a replacement board for it, but until I can this repair is stalled.

Epoxy the board back to gether and jumper the snot out of it. :)
 
AAAANNNNNNNNNDDDDD WE'RE BACK!
Thanks to the generosity of AK member Tonebells (Tony) I have on the way to me a power amp board from a Marantz 2216.
As many of you may know the 2216 and 2215b are almost identical on the inside.
I have gone through the service manual for both of these receivers looking at the components list for the P700 board and performed a part-for-part comparison.
There are a total of 12, or possibly 14, differences. I realize that often there is a difference in the actual parts on the board and those noted in the service manual. The list that follows has been generated solely from the parst noted in the service manuals. (if you know that any of the listed parts are in fact manual errors please advise me of such -- Thanks.)
2216 // 2215b

R705 resistor 150Ω +/- 5% .25W // resistor 200Ω +/- 5% .25W
R706 resistor 150Ω +/- 5% .25W // resistor 200Ω +/- 5% .25W
R735 resistor 0.22Ω +/- 10% 3W // resistor 0.47Ω +/- 10% 2W
R736 resistor 0.22Ω +/- 10% 3W // resistor 0.47Ω +/- 10% 2W
R737 resistor 0.22Ω +/- 10% 3W // resistor 0.47Ω +/- 10% 2W
R738 resistor 0.22Ω +/- 10% 3W // resistor 0.47Ω +/- 10% 2W
R741 resistor 2.2Ω +/- 10% .5W // resistor 22Ω +/- 10% .5W
R742 resistor 2.2Ω +/- 10% .5W // resistor 22Ω +/- 10% .5W
R745 resistor 1kΩ +/- 10% .5W // resistor 220Ω +/- 10%.5W
R746 resistor 1kΩ +/- 10% .5W // resistor 220Ω +/- 10%.5W
C721 Electrolytic Capacitor 3300μF 35v // Electrolytic Capacitor 2200μF 35v
C722 Electrolytic Capacitor 3300μF 35v // Electrolytic Capacitor 2200μF 35v


C719 ceramic capacitor 0.1μF +/- 10% // film capacitor 0.1μF +/- 10%
C720 ceramic capacitor 0.1μF +/- 10% // film capacitor 0.1μF +/- 10%


Disregard the colours: just an artifact of cutting and pasting.
As for C719 & C720 the values are the same, but the 2216 has Ceramic caps and the 2215b has film caps - not sure if this makes a difference.
I have all of the caps, as I was planning to do a recap before I broke the PCB so it is just the resistors I need.
As I haven't done a lot of this stuff I'm not sure if there is a difference in resistor quality. Would generic resistors from RadioShack/The Source be ok of are there better quality resistors that I should be using?



EDIT: Damned board formatting screwed up my chart 2216 is first 2215b is after the '// '
 
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I had not taped the box yet so I got the board out to confirm whats on there.

R705 resistor 150Ω +/- 5% .25W //
R706 resistor 150Ω +/- 5% .25W //
R735 resistor 0.22Ω +/- 10% 3W //
R736 resistor 0.22Ω +/- 10% 3W //
R737 resistor 0.22Ω +/- 10% 3W //
R738 resistor 0.22Ω +/- 10% 3W //
R741 resistor 220Ω +/- 10% .5W //
R742 resistor 220Ω +/- 10% .5W //
R745 resistor 1kΩ +/- 10% .5W //
R746 resistor 1kΩ +/- 10% .5W //
C721 Electrolytic Capacitor 3300μF 35v //
C722 Electrolytic Capacitor 3300μF 35v //

C719 ceramic capacitor See photo
C720 ceramic capacitor See photo

IMG_2634[1].JPG

Tony
 
Thanks for that I suspected that 741 and 742 were typos.
And thanks again for parting with the board!
 
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How bad would it be to steal the resistors I need from the old broken board I have? Assuming they are still good of course.
 
Yeah, you are probably right. Just itching to get this started and wanted to avoid the wait time.
 
I was wondering that myself, but I don't have the expertise to figure out if that would work.
Curious though, if the power supplies are the same what would account for the difference in the power rating?
 
It takes very little change in the applied power to effect a 1 watt change in the output.
I would do as Tony suggests and just install the working board.

Tom
 
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