Philips CDM1 adjustment Tutorial for CD104, 204, 304 etc
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- čas přidán 31. 03. 2023
- I kept saying 1st Generation when I meant 2nd! The first generation units used CDM0 mechanisms with tape deck type motors; the CDM1 is better IMHO. CDM2s were a more budget plastic bodied version and had a few reliability problems. The CDM4 is also a good mechanism as used on the Rotel RCD855. After the CDM4 quality generally went down hill except for the expensive CDM9 which was a revival of the CDM1 in many ways.
- Hudba
Last week I found a cd104 in my local second hand shop. Since then I am reading about the player. I even discovered your channel! I owned more than 10 cdplayers, but this one is something special. Mine have up after 10 CDs, not reading CDs at all. But I will fix it hopefully 😊 Please continue tips and tricks about this beautiful machines!
I will never part from my modified CD104. I have serviced and modified many of this type of player. Not sure what I can do a video on next (maybe on common problems or how to modify).
@@delatronics3257 such a video would be great. There are one or two videos on this topic but they are in German or Russian. "How to repair your best cd player ever-for beginers" 🙂
@@delatronics3257have you made any video about the mods?
@@tombill2723 I am not involved with CD players anymore (I have reopened my business for electronic musical instruments). There are plenty of vídeos about how to do the NOS mod here on CZcams and on line; the NOS mod will do wonders for the sound.
@@delatronics3257 thank you for the reply
Great video and one of my favourite albums on the platter too!
Thank you vey much for the info, My 104 stopped to read CDs and I have no technician nearby, others are expensinve. Ill try to be delicate with the screw and first clean the lens of course.
I never thought id see a "brazil" made CD 204. I live in Argentina, and i have an early production sample from 1984. Only a few were imported due to the high costs. But they are built like tanks. Mine was very abused and it wasn´t taken care of. But after changing all the philips capacitors, it came back to life.
If you check the voltage regulators they say "BRASIL" on top, very cool.
I may sell my serviced 204 soon and just keep my 104.
Perfect! I had a CD104 and had chatted with you years ago. Now you've revealed what the issues were! Does the CD304 have digital out?
No, all TDA1540 DACs don't support digital output (the TDA1541 does support it). I am coming back to the UK next month and will begin servicing when I have a premises in October.
This player is of a earlier generation, compaired to the cdm2 and 4 i work on on a regulair almost weekly basis.
A word of warning here:
You should check and service the laser power supply, and the servo systems first, before making any ajustments at all !!!
In my experience as a professional audiotech, it was very seldom that laserpower needs a adjustment. Most of the time the root cause is something else. Dried out electrolitics in servo and lasersupply are the main culpritt on the cd players equipped with cdm2 and 4, and i can imagine it be the same here.
The bearing adjustment however i already came across that problem in the mid 90 ties. So yes, always check that. The lightblue caps in these and later generations are all way out off spec by now, so a full service should be done.
Enjoy these nice machines, and indeed, a masterclock is always a very nice upgrade.
Thanks for your comment, I agree 100% but this video is aimed for the non Technical person. I too have done a lot with later generation and been in audio electronics for more than 35 years.
thank you for the vid
❤лайк и подписка.Жаль не понимаю языка но у меня 304 ll и только сейчас что-то начал барахлить
То включается читает нормально-то не включается и диск не запускается...на что обратить внимание в первую очередь.?Еще понял с Вашего обзора 104 качественный аппарат которым дорожите🎉
Nice info where are you located in Brazil?
Curitiba (Delatronics has website, Instagram and Facebook)
People don’t have a clue. You need an oscilloscope and put cd players in service mode and adjust to spec. Done many years of repairs in cds, laserdisc and video, etc. these videos on here are a joke and don’t have a clue what they are doing. What you are doing is messing it up more to failure. What a joke.
I have personally set these up with an analogue scope but the vast majority of amateurs and tinkerers don't possess scopes. In my experience, as long as you keep away from the trimpots and just tweak the turntable height on a CDM1 mechanism; function can be restored without damage to the laser or mechanism. Not many technicians are available or are willing to repair these old machines, so they end up sitting in storage and out of use until a solution can be found in an experienced engineer with all the necessary equipment. You are obviously being critical of my video which is your perogative, perhaps you have some more technical videos on your channel to help people out; but my guess is that that info would go over most people's heads...Or maybe you are a troll!