Marantz 2216(e) Black

[icko30]

Paid 160$. I must repaired her for my sis.
Headphone connector is in bad shape and apparently one chanel is out.



Will go trough dimm bulb and measurements.

 

[icko30]

Yep left ch is out. Visual solved a mistery.



Gues I will need new transistor and how I am lucky to have one at home.

 

[icko30]

Replaced and short. 60W bulb. Too much? Before replacemet of a transistor it was dim after a sec. Replacement is MJE15032G ; h711


Edit: replacement goes very hot during dim bulb testing.

 

[icko30]

MJE15033G (h713) was bad also during measurments. Ordered new including R channel ones and recap stuff.

 

[icko30]

After testing with dim bulb without (desoldered) output transistors seems to be ok.

 

[icko30]

I discovered that pin in voltage selector is broken, so she is loosing power. I remove the pin leftowers. Must figure it out how to replace and build a substitute.

 

[icko30]

So I used a heavy gauge and a slight touch of an angle grinder and solder a new pin. I have to drill some larger hole into selector.
Tested and working good.

 

[icko30]

I have some time while waiting for material to come and I was working on a hexagonal bolts for the faceplate. While Marantz replacement could be quite expensive I bought some inox standard ones and grinde the heads with some different grade paper using akku screwdriver. It came out real nice and cost 0.09$/pcs.

 

[icko30]

Well with all four transistors replaced all works just fine. I can now do recap in peace.

 

[icko30]

Can I use 50V 4700uF instead of 56V 4700uF cap on power board?

 

[dankik]

Schematic shows you will have 52V (J808) on that capacitor, so you should go up in voltage if possible.

 

[Dingman]

I wouldn't - find a 63 volt and use that.

Can I use 50V 4700uF instead of 56V 4700uF cap on power board?[/QUOTE

 

[icko30]

Ok thx a lot.

 

[icko30]

Find some weird resistors mesing around headphones jack. Cut them loose and install a new 6,3mm socket. Works just great.

 

[icko30]

With scotch brite and aku screwdriver I camouflaged as much I can, damaged knobs and slowly putting all together.
After some testing she goes to join my sisters family.

 

[icko30]

Between Mama&Papa.

 

[icko30]

Doing well, just some random crackling (as same as loud as music) when unit is warm. ( in use for some time... Not pushed hard.) Just for a sec or two. And then nothing an hour or so and then again...
Tone board is original. What could cause this?

 

[EastPoint]

Bad transistors.

 

[icko30]

Otput ones? They are new. All four of them.