Any updates on the 7220 seperate ps and the reclock ?
Btw, greetings from Denmark 🙂
Regards
Kim
Btw, greetings from Denmark 🙂
Regards
Kim
Hi there neighbor 🙂
Btw, my stepfather is from Denmark.
I've ordered a 27R 3W resistor today to give the TPR a final test with a 175mA load.
I'm waiting for replacement elcos for the ones I soldered in the wrong way while running a fever...poff.
Then I'll start by replacing them, fitting the TPR w transformer.
Regards,
Jonas
Recieved replacement caps today 🙂
Don't know if I'll have time to work on the CD-60 today though.
Don't know if I'll have time to work on the CD-60 today though.
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Sounding good, but still haven't gotten around to the regs or clock.
I hope moving isn't too much work and that the new house is good 🙂
I hope moving isn't too much work and that the new house is good 🙂
CD-75DX
Hmm, where could I find a replacement rubber ring for the disc-holder attached to the motor?
Examples of what I'm talking about, but just the "o-ring"
Philips CDM 2/10 lasereinheit | eBay
Philips CDM 2/10 lasereinheit | eBay
Hmm, where could I find a replacement rubber ring for the disc-holder attached to the motor?
Examples of what I'm talking about, but just the "o-ring"
Philips CDM 2/10 lasereinheit | eBay
Philips CDM 2/10 lasereinheit | eBay
eBay: 6 Stk. Antriebsriemen für CD Player usw. 35 mm x 1,5 mm
Dunno if they send to Sweden though, but why shouldn't they..
I will order from them this week if they are willing to ship to France.
Cheers,
Max
Dunno if they send to Sweden though, but why shouldn't they..
I will order from them this week if they are willing to ship to France.
Cheers,
Max
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Thanks mate, but arent thoose drivebelts?
But maybe they fit in place of the rubber ring that is between the metal "wheel" and the disc?
NOS converted the CD-75DX
Replaced diode damaged by leaky cap.
Replaced leaky cap with 3x2200uF in parallell, these will of course be secured in place.
Replaced diode damaged by leaky cap.
Replaced leaky cap with 3x2200uF in parallell, these will of course be secured in place.
Those are the drivebelts for cdm 2 indeed, my mistake.
No clue where to find the rubber seal.. industrial supply ? make one yourself out of a sheet of rubber ?
Maybe I could take an o-ring and cut to size. remove the old worn out rubber and glue the new in place with CA-glue?
I quick shot on google gave me this..
Flachdichtungen, Gummidichtungen und Formteile aus Silikon
A local supplier of industrial goods should be able to help you out, maybe even ebay, I didn' check any further..
Flachdichtungen, Gummidichtungen und Formteile aus Silikon
A local supplier of industrial goods should be able to help you out, maybe even ebay, I didn' check any further..
I think I might be able to get a rubber ring/sealing with the right dimensions (more or less) from the local carparts shop.
More CD-75DX.
Made a small, nothing fancy, well heatsinked reg for SAA7220
Got Vin from Vin pin on the original 7805
Grounded the reg as close to SAA7220 I could
Removed the resistor to Vdd on SAA7220, connected the reg through out leg in the hole left (a few mm from 7220 Vdd pin) and soldered it there.
Result, not tested yet as there's much more to be done
Made a small, nothing fancy, well heatsinked reg for SAA7220
Got Vin from Vin pin on the original 7805
Grounded the reg as close to SAA7220 I could
Removed the resistor to Vdd on SAA7220, connected the reg through out leg in the hole left (a few mm from 7220 Vdd pin) and soldered it there.
Result, not tested yet as there's much more to be done
Did the same on TDA1549 based player.
I also added a dedicated 7805 for the dac in a Philips CD740.
It really makes a difference 😱
Together with all the cap upgrades in the player, and signal taken directly from the dac via 3,3uF Obbligato's, it makes for an extremely nice sounding machine.
I haven't started working on the CD40 yet, other than replacing the tray drive wheel.
I also got another player to work on, a Teac with 2 x TDA1541A, it already sound pretty good standard, but it cannot touch the modified TDA1549.
Sorry for the OT ramble, just wanted to chime in with my impression after the dedicated DAC power mod.
Regards
Kim
I also added a dedicated 7805 for the dac in a Philips CD740.
It really makes a difference 😱
Together with all the cap upgrades in the player, and signal taken directly from the dac via 3,3uF Obbligato's, it makes for an extremely nice sounding machine.
I haven't started working on the CD40 yet, other than replacing the tray drive wheel.
I also got another player to work on, a Teac with 2 x TDA1541A, it already sound pretty good standard, but it cannot touch the modified TDA1549.
Sorry for the OT ramble, just wanted to chime in with my impression after the dedicated DAC power mod.
Regards
Kim
Hi Kim!
Nice to what others have done 🙂
I'm guessing the DAC in your philips is a V-out dac and not a I-out dac like the 1541A?
In my dac build I'll run it with opamps first to get an idea of that sound. Then I'll use a tube output with a single ECC86(dual triode).
Back to the CD-75dx.
I'll swap caps for ELNA RJH and sanyo OScon SEPC. Some Rubycon ZL too.
Will give the TDA1541A separate regs as well(+5,-5 and -15) and the SAA7210.
It doesn't seem to have bipolar output caps like the cd-50 and cd-60, but rather old elna silmic's. I could replace them with 6,8uF MKP's anyways?
Hi May-day.
Yep the TDA1549 is a v out dac, and I also tried it briefly with a 6N16 cathode follower, but the soundstage was much smaller and not as accurate.
It also lowered the output too much.
The sound might have more to do with the fact that there was two cheap film caps in the signal path, instead of just one now.
Tomorrow I might try it with a SRPP 6N16 stage with two Obbligato caps instead.
It should give higher output and better sound with the better caps.
And I already have the tube stages build.
I also used lots of Oscon's and they work well and are cheap too.
Regards
Kim
Yep the TDA1549 is a v out dac, and I also tried it briefly with a 6N16 cathode follower, but the soundstage was much smaller and not as accurate.
It also lowered the output too much.
The sound might have more to do with the fact that there was two cheap film caps in the signal path, instead of just one now.
Tomorrow I might try it with a SRPP 6N16 stage with two Obbligato caps instead.
It should give higher output and better sound with the better caps.
And I already have the tube stages build.
I also used lots of Oscon's and they work well and are cheap too.
Regards
Kim
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