no clipping just press clippings
Tubee,
those are some interesting press clippings (I think) which can be viewed by Windows Picture and Fax Viewer (or such application) after unzipping.
Tubee,
those are some interesting press clippings (I think) which can be viewed by Windows Picture and Fax Viewer (or such application) after unzipping.
Sorry Tubee!
I'm a Microsoft idiot.
I'm very interested in your opinion, and Phimor's and rbrw's and other diyAudio-forum professors' (seriously, I hold you guys that high).
Newsflash!
I beefed up the power supply of my CD104 as a Phase One!
Everything settled nicely, sibilants cleared as well as percussion transients. There's deeper blackness in the picture where there's noone. Sound spectrum is more linear.
Every device got enogh energy so there's no more fight for power. It's the old rule of electric devices - strongest consumer has the power priority in low-energy-resource environment. You could hear it as a musician performing live and some light-guy plugs his 20 kW moving-head chain before your amps plug and you end up in lack of amperes and consequently weak sound from your rig. In CD104 I cannot point my finger which device takes up most power.
Next Phase is inducing chokes in PS in existing PCB which will be mighty hard task. Maybe I should build a completely new PCB.
See you! Extensive forensic listenning session in progress!
I'm a Microsoft idiot.
I'm very interested in your opinion, and Phimor's and rbrw's and other diyAudio-forum professors' (seriously, I hold you guys that high).
Newsflash!
I beefed up the power supply of my CD104 as a Phase One!
Everything settled nicely, sibilants cleared as well as percussion transients. There's deeper blackness in the picture where there's noone. Sound spectrum is more linear.
Every device got enogh energy so there's no more fight for power. It's the old rule of electric devices - strongest consumer has the power priority in low-energy-resource environment. You could hear it as a musician performing live and some light-guy plugs his 20 kW moving-head chain before your amps plug and you end up in lack of amperes and consequently weak sound from your rig. In CD104 I cannot point my finger which device takes up most power.
Next Phase is inducing chokes in PS in existing PCB which will be mighty hard task. Maybe I should build a completely new PCB.
See you! Extensive forensic listenning session in progress!
When i modded a CD304mk2 i added a coil between the 2 PS caps for the digital segment. Now it is a sort of CLC supply. And BYV diodes ofcourrse, with a 1 or 2 ohm stopping resistor in AC line to transformer to stop diode spikes further. Scavenged the (ferrite) coil from an old PC PS.
Philips LHH-2000 Service Manuals & Schematics
Hi amsci99,
I have a Philips LHH-2000 (player + wired control). I want to locate its service manuals and schematics. I greatly appreciat it if you could lend me a hand in this respect. Either hardcopy or softcopy is o.k. to me.
Thanks really.
Regards,
T.C. MA
Email: tcma@netvigator.com
amsci99 said:
Hi amsci99,
I have a Philips LHH-2000 (player + wired control). I want to locate its service manuals and schematics. I greatly appreciat it if you could lend me a hand in this respect. Either hardcopy or softcopy is o.k. to me.
Thanks really.
Regards,
T.C. MA
Email: tcma@netvigator.com
Think about who (or what) you listen to
Hello everybody!
I'm back after exhausting few months of playing around, literally.
I'm in the process of making my beloved Philips CD104 sound more like the iconic LHH2000. Some say it can't be done but I say let's do it.
I finally decided to rebuild the power supply using some of the old techniques (C-L-C filtering) with modern technology regulators (TL783 - found in my mid-nineties Soundcraft Spirit mixer's power supply) + better caps (multilayer ceramics elcos, found in high-end PC-mobos). I strongly believe I have a good chance to accomplish something.
Also, I would like to bring one thing to your attention and it's really a question - When do you know you are doing the right thing?
People say that old CD-players produce harsh treble or perfunctory one, just to complete the frequency spectrum. I listen through my KLIPSCH-cloned-horn-mid-and-treble speakers with Acoustic Reality Series Crossover and I do not find so much overall difference between good old and contemporary CD-players. I repeat overall difference. BEWARE OF SILK DOME TWEETERS BECAUSE THE BAD ONES CAN USE UP A LOT OF TREBLE ENERGY TO TURN IT TO SOFT AND LIFELESS FOG (kind of filter-effect). Try your modifications through a good horn and than decide on your next step.
Modern commercial and even jazz production mostly overloads the high mid and treble part of an audio spectrum (maybe to catch the listener) so we should pick our reference recordings carefully.
Great accomplishment might not sound attractive but closer to truth!
Nothing new but often forgotten.
P.S.
If anyone has Philips-LHH2000's service manual or just the schematics let me know what I should do to get them.
Hello everybody!
I'm back after exhausting few months of playing around, literally.
I'm in the process of making my beloved Philips CD104 sound more like the iconic LHH2000. Some say it can't be done but I say let's do it.
I finally decided to rebuild the power supply using some of the old techniques (C-L-C filtering) with modern technology regulators (TL783 - found in my mid-nineties Soundcraft Spirit mixer's power supply) + better caps (multilayer ceramics elcos, found in high-end PC-mobos). I strongly believe I have a good chance to accomplish something.
Also, I would like to bring one thing to your attention and it's really a question - When do you know you are doing the right thing?
People say that old CD-players produce harsh treble or perfunctory one, just to complete the frequency spectrum. I listen through my KLIPSCH-cloned-horn-mid-and-treble speakers with Acoustic Reality Series Crossover and I do not find so much overall difference between good old and contemporary CD-players. I repeat overall difference. BEWARE OF SILK DOME TWEETERS BECAUSE THE BAD ONES CAN USE UP A LOT OF TREBLE ENERGY TO TURN IT TO SOFT AND LIFELESS FOG (kind of filter-effect). Try your modifications through a good horn and than decide on your next step.
Modern commercial and even jazz production mostly overloads the high mid and treble part of an audio spectrum (maybe to catch the listener) so we should pick our reference recordings carefully.
Great accomplishment might not sound attractive but closer to truth!
Nothing new but often forgotten.
P.S.
If anyone has Philips-LHH2000's service manual or just the schematics let me know what I should do to get them.
amsci99 said:
Hi,
I am looking for the lhh-2000 service manual. Can i get in contact with you? Thx! 🙂
Re: Philips LHH2000
I am not technical, but i do share your thoughts about the LHH2000.
Before the LHH2000 i had:
- Marantz cd10
- Marantz cd16
- Marantz cd11LE
- Philips cd960
- Philips dac960 tda1541a S2 (still have)
- Philips CD14 (still have)
The LHH2000 is a killer. It outperformance each and one in that list. The sound is natural. It performances with ease, in controll, very detailled, but above all very natural. I never thougt 2 14 bit dac's could sound this good.
I love it 😉
http://www.marantzphilips.nl/index.asp?strPage=Info&strBrand=Philips&strType=lhh2000
dsmiljanic said:
I am not technical, but i do share your thoughts about the LHH2000.
Before the LHH2000 i had:
- Marantz cd10
- Marantz cd16
- Marantz cd11LE
- Philips cd960
- Philips dac960 tda1541a S2 (still have)
- Philips CD14 (still have)
The LHH2000 is a killer. It outperformance each and one in that list. The sound is natural. It performances with ease, in controll, very detailled, but above all very natural. I never thougt 2 14 bit dac's could sound this good.
I love it 😉
http://www.marantzphilips.nl/index.asp?strPage=Info&strBrand=Philips&strType=lhh2000
After numerous requests, here's the Philips LHH-2000 Provisional Service Manual and Schematics, might be different from the Dutch version on sale from the URL mentioned in the last post, nonetheless it's the rare factory draft with even scribbings in Kanji from the engineers who worked on the project.
http://rapidshare.com/files/125001358/a.pdf.html
1.9MB
http://rapidshare.com/files/125008318/Documents.pdf.html
3.45MB
Please let me know if the links work.
http://rapidshare.com/files/125001358/a.pdf.html
1.9MB
http://rapidshare.com/files/125008318/Documents.pdf.html
3.45MB
Please let me know if the links work.
For those who are having trouble with Rapidshare, I've uploaded the files again to zSHARE which is less of a hassle.
http://www.zshare.net/download/164992968574d0a6/
http://www.zshare.net/download/1649947323b4c26a/
For those who have downloaded the files, would appreciate a discussion of the design topologies employed by Philips/Marantz to make the LHH-2000 such a legendary player especially the topology behind the DAC stage.
http://www.zshare.net/download/164992968574d0a6/
http://www.zshare.net/download/1649947323b4c26a/
For those who have downloaded the files, would appreciate a discussion of the design topologies employed by Philips/Marantz to make the LHH-2000 such a legendary player especially the topology behind the DAC stage.
Thx!
In caser needed, here are pictures of the PCB's of the LHH2000:
http://www.marantzphilips.nl/index.asp?strPage=Info&strBrand=Philips&strType=lhh2000
In caser needed, here are pictures of the PCB's of the LHH2000:
http://www.marantzphilips.nl/index.asp?strPage=Info&strBrand=Philips&strType=lhh2000
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