Naim CD1 with no audio output.

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First step has to be a circuit and making a list of the chip set. Many Philips players will be very similar such as (perhaps 🙂) the CD630. What you are looking for are players that use the same chip set.
Philips CD630 | Owners Manual, Service Manual, Schematics, Free Download | HiFi Engine

List of players that use the TDA 1541,
List of players with 1541 [Archive] - pink fish media

I would begin by going round every pin on the TDA1541 (with CD playing) and check with a scope as well as DVM. Every pin, even if it's ground check it.

As a matter of course (and it almost certainly isn't this) I always check and confirm the RF (eye pattern) is of correct amplitude. Have had player that would read the TOC and spin up and the display updates but no audio due to low RF (low laser emission).

You have to cover all bases when faultfinding... don't assume a single thing is correct until measured and proved OK.

Very difficult is to find out a Philips model with the same MCU for operate/instruction controlling, because the firmware (software programming) by each model is different.
The CD630 e. g. uses according the sm the MC68HC059P/SC409009 resp. SC409010. But I need a philips model with the ZC99685P/MC68HC05C8P/110 for naim Audio NACDI and Rotel RCD-865BX.
Additional to the single component cd player devices there are also any models from hifi systems. Unfortunately for this kind of cd player components it is hard to find schematics.

Fron follow models I have find out the type of the MCU:
Philips CD230 (CD230/01G)
MC68HC05C8P/9441
http://audio2nd.blogspot.de/2011/01/philips-cd-230.html
Philips CD115
MC68HC05C8P/???? (ZC99892P) - maybe missprint
http://www.jacquesstompboxes.com/oscillo.htm
http://www.quoka.de/hifi-audio-tv-v...563442p69390871/cd-player-philips-cd-115.html

Here a line-up of additional models, where the MCu is unknown for me:

1) Philips CD110
Lecteur de disques compacts audionumériques PHILIPS CD110 vintage datant de 1991

2) Philips CD320 (CD320/00G)
CD Player CD320 R-Player Philips; Leuven, build 1989 ??, 7 p

3) Philips CD340
ODTWARZACZ CD PHILIPS CD 340 TANIA WYSY?KA OD 1Z? (1466277157) - Archiwum Allegro
component of this hifi system:
DSCF0636 | dscf0636, hifiklassiker, stereo | hifi-forum.de Bildergalerie

4) Philips CD140
VAL - Philips CD140
Le forum de Vintage Audio Laser • Afficher le sujet - Philips CD 140
Philips CD-140

5) Philips CD130 (CD130/00B)
Philips CD130 - Hi-Fi Database - CD Players
?????-????? ?????? • ???????? ???? - philips cd 130 ??????
Le forum de Vintage Audio Laser • Afficher le sujet - Discussion générale sur la Hi-Fi vintage

6) Philips CD310
component of this home audio system:
70FR310/00G Radio Philips - Österreich, build 1993 ??, 10 pi

Maybe one of the members have a service manual and can find out for me, which model of the above listed uses the ZC99685P resp. the MC68HC05C8P/110.

Thank you for your efforts.

P.S. On this URLs are to find additional informations regarded different MCUs, also the ZC99685
http://bbs.hifidiy.net/thread-340388-1-1.html
http://bbs.hifidiy.net/thread-540709-1-1.html
http://arbore.blog.163.com/blog/static/3185855320114865957796/
Maybe a member from China or Taiwan can translate this informations for us.
 
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Very difficult is to find out a Philips model with the same MCU for operate/instruction controlling, because the firmware (software programming) by each model is different.
The CD630 e. g. uses according the sm the MC68HC059P/SC409009 resp. SC409010. But I need a philips model with the ZC99685P/MC68HC05C8P/110 for naim Audio NACDI and Rotel RCD-865BX.
Additional to the single component cd player devices there are also any models from hifi systems. Unfortunately for this kind of cd player components it is hard to find schematics.

Fron follow models I have find out the type of the MCU:
Philips CD230 (CD230/01G)
MC68HC05C8P/9441
audio2nd: Philips CD 230 (SOLD)
Philips CD115
MC68HC05C8P/???? (ZC99892P) - maybe missprint
JACQUES HIFI PAGES spdif on oscilloscope and spdif from psx
CD-Player - Philips CD 115 in Rietheim-Weilheim - CD- und MD-Player kaufen und verkaufen über private Kleinanzeigen

Here a line-up of additional models, where the MCu is unknown for me:

1) Philips CD110
Lecteur de disques compacts audionumériques PHILIPS CD110 vintage datant de 1991

2) Philips CD320 (CD320/00G)
CD Player CD320 R-Player Philips; Leuven, build 1989 ??, 7 p

3) Philips CD340
ODTWARZACZ CD PHILIPS CD 340 TANIA WYSY?KA OD 1Z? (1466277157) - Archiwum Allegro
component of this hifi system:
DSCF0636 | dscf0636, hifiklassiker, stereo | hifi-forum.de Bildergalerie

4) Philips CD140
VAL - Philips CD140
Le forum de Vintage Audio Laser • Afficher le sujet - Philips CD 140
Philips CD-140

5) Philips CD130 (CD130/00B)
Philips CD130 - Hi-Fi Database - CD Players
?????-????? ?????? • ???????? ???? - philips cd 130 ??????
Le forum de Vintage Audio Laser • Afficher le sujet - Discussion générale sur la Hi-Fi vintage

6) Philips CD310
component of this home audio system:
70FR310/00G Radio Philips - Österreich, build 1993 ??, 10 pi

Maybe one of the members have a service manual and can find out for me, which model of the above listed uses the ZC99685P resp. the MC68HC05C8P/110.

Thank you for your efforts.

P.S. On this URLs are to find additional informations regarded different MCUs, also the ZC99685
NAIM CDI - Powered by Discuz!
CDMÖ÷ÖáËÅ·þÔ*Àí+PHILIPSÒ¡Í·»úϵͳ½éÉÜ - Powered by Discuz!
CDM4 310°å ZC99685 Áùλ VFDÏÔʾÆÁ - arboreµÄÈÕÖ¾ - ÍøÒײ©¿Í
Maybe a member from China or Taiwan can translate this informations for us.

I am still looking for a appropriate Philips cd player model for repair the Naim NACDI.
Those philips model must have in use the MCU type ZC99685P/MC68HC05C8P/110

According the china-forum hifidiy under
http://bbs.hifidiy.net/thread-196512-1-1.html
the Philips CD320 uses the ZC99685.
I have now this model, but I find an other type:
XC400008P and according the associated service manual MC68HC05C9P/3961

Maybe the guys there know more exactly, in which philips model is a ZC99685P/MC68HC05C8P/110:
ZC99702P-potrebno - Oglasi - diyAudio.rs
 
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