CEC TL3 - TOC recognized but sometimes lengthy table of contents, depending on the original CD

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Freddu77

Member
Joined 2023
#1
Hello, I have a relative who entrusted me with a CEC TL3 because the player was having problems recognizing the table of contents with two of these Cds, which are originals (not CD-Rs). After dismantling the unit, I found three cut chemical capacitors (330µf/6.3v) on the power supply board. I also took the opportunity to replace the three 47µf/50v close to the heatsinks. I didn't find any other chemical capacitors out of order on the power supply board. I should point out that the laser lens was cleaned in two passes (isopropyl alcohol). After reassembly and tests with several Cds, including the one that was not recognized, there is some improvement, but it's still not optimal. I'm thinking of checking the servo card settings and readjusting only if necessary. For this, I'll need the CEC TL3 manual service. The servo card has two markings on the PCB (TK-T71 94V-0) and (4B10012700C). I'll post a photo soon. Thanks in advance to anyone who can give me a hand.
 
#2
here is a picture of the servo card
 

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#13
Hello, thank you very much for all this information and for the very detailed and appropriate procedure. Unfortunately, I don't have a frequency counter, so I left out point 1, but I did readjust points 2 and 3, and it's been much better ever since. Belt replacement is also planned.
 
#15
the servo PCB from post #10 is according the description under
http://lampizator.eu/LAMPIZATOR/REFERENCES/CEC/CEC TL-1X.html
mostly in use in cheap boom box versions from Sanyo (maybe also CD-receivers, changers and cheap hifi-audio systems include loudspeakers)
Who know an exact model ?
I want to have such a model for more easy service on the various CEC models so as other high end models and brands such as
  • YBA Lecteur "CD-2" and "CD-1"
  • Classe CDP-3
  • Krell KAV250CD MK-I
  • Audiomecca Obsession
  • Roksan Caspian CD - Player (M-Series 1)
  • Parasound C/BD2000
  • Einstein "The CD" Player
which use also this servo PCB - go to post #1 under
tiefbassuebertr

Thread 'Parasound "C/DP 1000" (CDP1000 C/DP1000 CDP) CEC 2100 3100 Service Manual wanted'

Parasound "C/DP 1000" (CDP1000 C/DP1000 CDP) CEC 2100 3100 Service Manual wanted

I am looking to a service manual of those associated CD Player model, where the here showed servo/pcm decoder PCB from Sanyo Optronics is in use:
???? - ????????????? ???????-??????, ?????????? ? ?????????? ? ???????.

Only schematic diagram of this PCB I have found by post #7 and #8 about
http://www.diyaudio.com/forums/digital-source/163081-cec-tl51x-cd-transport.html

There are a lot of other brands, where this PCB is in use. I have attached some pics and listed some examples by post #5...
- in most cases with this type naming:
  • "TK-T71 94V-O" and
  • "4B10012700 C"
Maybe one of the member know this - thank you very much.
 
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