Got Fleas?

[6H5C]

Many thanks Ray.

This one is going to power my +5v supply on the DAC in my CD2 (underside has the 'extra power bits...').

Cool. Looks like the mailman is doing a quick job!

Ray

 

[enzedone]

Sorry to ask this, but I'm new here.
I have just purchased a second hand Marantz CD52. How do I find out what frequency I' would need for this TCXO?
I haven't even opened the lid on this thing yet..

 

[6H5C]

The CD52 needs a 11.2896MHz clock, you can find that in the service manual.

You can find it here.

Regards,

Ray

 

[nuryev]

Hi Robert
I liked your excellent flea installation. Where did you get the psu? I am looking for similar or at least a pcb to build psu for when I complete my Flea.

Thanks

 

[midcm1]

Latest Flea build and PSU ready for fitting into the CD2.....

http://i247.photobucket.com/albums/gg157/midcm11/IMG_6335a.jpg

Notice use of 'brown dog adaptor' as I bought the wrong IC format and output voltage 'tuned' using 1K3 + 27R to get 4.96v output (1.9v across LED).

Many thanks to Ray (pcb), Colin (XO Module) and Martin (for everything else).

I'll report in my CD2 thread once its all fitted.

 

[6H5C]

Great, it's funny to see my own PCB built by someone else

The output voltage can be a bit fiddly to tune. Maybe I should have fitted a trimmer there, the LED voltage can vary between 1,9 and 2,0V between different types.

Ray

 

[avr300]

I have green LED here with 3V drop. So better check first.

 

[PigletsDad]

A 3V green led will be an InGaN type; probably a different shade of green. Don't use in a flea, as they are much noisier than the GaP type which operate somewhere round 1.9 to 2V

 

[nuryev]

Forgive the silly question..
How do you tell the difference bewteen an InGaN and a GaP led?

 

[avr300]

Measure the voltage drop

 

[nuryev]

Has anyone successfully installed a flea into a Marantz cd7300?

 

[6H5C]

Not personally, but it's not difficult. Remove R188, R226 and C176 and feed the clock using the empty pads of C176. You will lose the pitch function though. To complete the mod, you can make the PLL and VCO powerless by removing R172 and 173, so no strange things can happen.

Regards,

Ray

 

[mikesnowdon]

Any update on the 'new and improved Flea' yet?

 

[mikesnowdon]

Any news on the FLea2 or is it just a rumor?

Also I could do with a new board is there's any around please.

Ta!

 

[martin clark]

It's still just a rumour, parked on the backburner of life at present. Sorry Mike!

 

[mikesnowdon]

wahhhhh!

lol!

OK then. Ive still got a dead Flea to repair and an even deader CD player needing a new oscillator.....

 

[martin clark]

Post me the old flea Mike and I can do that/check it for you if you like.

 

[mikesnowdon]

Thanks MC!

 

[nuryev]

Finally completed my flea and psu - not without some silly mistakes solved with the kind help of Ray of Ray's audio page NL.

BTW I have a supplier for WIMA caps - if and when a group buy is considered.

Next is installation into Marantz cd7300. Will keep you posted.

 

[nuryev]

http://i842.photobucket.com/albums/zz342/nuryev/IMG_03751.jpg