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August 20, 2022, 02:01:05 AM

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does anyone have a schematic for a marshall 5010 jm78-2 pcb?

Started by pinkjimiphoton, March 03, 2022, 05:57:19 PM

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pinkjimiphoton

#45
Quote from: joecool85 on March 24, 2022, 05:17:19 PM
Quote from: pinkjimiphoton on March 24, 2022, 04:20:55 PMapparently admin has crippled my ability to upload files. sorry man. i'll try and upload them on diystomps or something.

i guess i did something wrong? wtf?

Nothing done wrong, we updated to SMF 2.1.1 and lost certain functionality.  I'm looking at this now.  Sorry for the trouble!

thanks joecool!
i was afraid i angered the forum gods or something!!

btw.... i think this is the stuff i'm gonna go with for the front plate on the amp. gold or rose sparkle, not sure which yet... they do engraving and everything if you need it, too.

i'm LOVING this little amp. the whole thing in the chassis only weighs about 4 lbs!

https://www.jpplus.com/rowmark-colorhues-glitter-cast-acrylic?sku=GH341771-QTR
what the hell ya mean it ain't fuzzy enough <static>

Tassieviking

#46
That is....sparkly
Those are very big glitter
I think I will use an aluminium panel and plain old gold spray paint can when I make my Marshall front panel.

This is a test panel I sprayed with the cheapest satin gold paint I could get at the hardware store
There are no stupid questions.
There are only stupid mistakes.

Tassieviking

Here are my KiCad files for the Marshall 5010 PCB78-2

The heatsink I would use would be :https://au.element14.com/aavid-boyd/505403b00000g/heat-sink/dp/1313918?st=heatsink%20to-3
Or just make one out of aluminium yourself
The Schematic does not match the board files in KiCad as I changed it slightly to make the PCB, I removed the transformer, switch etc.
I think it is the best I can do for now.
 I might make a smaller PCB in the future with the Jack sockets off the PCB, and add an effects loop and maybe reverb as well.
I will not be making this PCB myself but it is fairly close to the original.
The strange capacitors are a mixed footprint so you can use Tantalum, Electrolytic or WIMA box type for the 2,2 uF caps.
The PCB will accept Alpha 24mm pots like the original, or Alpha 16mm pots (The holes will be lower on the front panel with 16mm pots.
Michael
There are no stupid questions.
There are only stupid mistakes.

pinkjimiphoton

i ended up using copper foil shielding tape for a front panel.
thanks for all this, michael!!

i got dimensions for the 3005 reverb for you...

chassis is 12 7/8 long, 2 3/8 high and 6 7/8 deep

board is 10 wide by 5 3/8 deep, sits 7/16 up from the chassis

input jack is 1 1/8 from left, gain knob is 1 from that.
all knobs are 1 1/8 spaced, line out is 1 1/8 from reverb knob, hp jack is 7/8

gotta upload some pics, will post soon

the new amp is totally clean and appears original
what the hell ya mean it ain't fuzzy enough <static>

pinkjimiphoton

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what the hell ya mean it ain't fuzzy enough <static>

pinkjimiphoton

more

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what the hell ya mean it ain't fuzzy enough <static>

pinkjimiphoton

tassieviking, just measured the dcr for the onboard reverb, input reads 32r, output 200r

pics of trace side coming soon
what the hell ya mean it ain't fuzzy enough <static>

pinkjimiphoton

here's more pics, of the trace side of the board.
i DID do some mods to this... 10,000uf power supply filters, and 220uf filters for the preamp instead of 100uf. that made it a bit quieter, and more robust. above 220uf and it gets kinda unstable, it needs a little sag to sound best, and above that too much bass leaks into the reverb and makes it so your attacks get kinda "pingy".

anyways...
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what the hell ya mean it ain't fuzzy enough <static>

Tassieviking

This is circuit as I traced it from the pictures, very similar to the online circuit for the 5205 with a few small differences.

The C12 in parallel with R17 is actually C16

The tone controls are connected slightly different

The power rails on mine are 24 Volts, ignore this as its approx 21 Volts.
KiCad only has 15 Volt or 24 Volt symbols and I haven't made any 21 volt ones yet

Your Bridge rectifier is different number then Marshall drawing, but both are 1.5 Amp.

That's all the differences I found from the original schematic.

Michael
There are no stupid questions.
There are only stupid mistakes.

Tassieviking

Here is a crazy thought Jimi, what if you put the 5010 amp and the 5205 amp side by side, and wired the pre-amp of the 12 watt reverb to the power amp of the 30 watt ?
Go from pin 1 of IC2 of the 12 watt and go to C8 of the 30 watt.
Just to see how it would run with the 30 watt amp attached to the 12 watt pre-amp.
I think I will just make a picture up so it is easier to understand. =)

There are no stupid questions.
There are only stupid mistakes.

pinkjimiphoton

i love the way your mind works, mike!
i may give that a shot, soon, hopefully... finally gotta production batch of pedals i gotta get done first tho.
it should work fine that way i'd imagine. i'll definitely try it and letcha know, bro!
thanks for all you do, man. its seriously appreciated!

i just put the schematic you made for the 30 watter on the marshall forum. you just helped a lot of people out, bro... thank you!
what the hell ya mean it ain't fuzzy enough <static>