CD930 reading problems

hacknet · 3rd August 2004, 09:17 AM

i own a philip cd930 and it is starting to give me problems.
when reading copied CDs, it tends to crackle hiss and distort the upper end. ontop of that, it will track skip when the disc are alittle dirty...

is there any solution to this other than changing the lens?

Netlist · 3rd August 2004, 09:25 AM

Hacknet
Assuming you know how to clean the lens, this is the first thing to try.
Also, do you burn your cd's at low enough speed? I'd say 4X should be ok.

/Hugo

hacknet · 3rd August 2004, 09:32 AM

i`ve cleaned the lens

i still have problems reading cd which have some fingerprint marks. i can`t read them unlike the newer players that don`t have problems reading them.

Netlist · 3rd August 2004, 09:40 AM

Second best bet is the lens. According to my list it's a CDM9.44.
You could try to measure these values who come from my repair database (never did it myself):
HF signal on TJ203: 1.4 Vpp
Laser power: 0.15 mW
Height disk platter: 15 mm.

/Hugo

hacknet · 3rd August 2004, 12:49 PM

sorry, but i`m not to familiar with attaining or checking these values. is there a tutorial or a readme somewhere online where i could learn how to check?

Thanks!

3rd August 2004, 09:17 AM	#1
hacknet diyAudio Member Join Date: Nov 2002 Location: sg	CD930 reading problems i own a philip cd930 and it is starting to give me problems. when reading copied CDs, it tends to crackle hiss and distort the upper end. ontop of that, it will track skip when the disc are alittle dirty... is there any solution to this other than changing the lens?

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3rd August 2004, 09:25 AM	#2
Netlist diyAudio Moderator Join Date: Jan 2003	Hacknet Assuming you know how to clean the lens, this is the first thing to try. Also, do you burn your cd's at low enough speed? I'd say 4X should be ok. /Hugo

3rd August 2004, 09:32 AM	#3
hacknet diyAudio Member Join Date: Nov 2002 Location: sg	i`ve cleaned the lens i still have problems reading cd which have some fingerprint marks. i can`t read them unlike the newer players that don`t have problems reading them.

3rd August 2004, 09:40 AM	#4
Netlist diyAudio Moderator Join Date: Jan 2003	Second best bet is the lens. According to my list it's a CDM9.44. You could try to measure these values who come from my repair database (never did it myself): HF signal on TJ203: 1.4 Vpp Laser power: 0.15 mW Height disk platter: 15 mm. /Hugo

3rd August 2004, 12:49 PM	#5
hacknet diyAudio Member Join Date: Nov 2002 Location: sg	sorry, but i`m not to familiar with attaining or checking these values. is there a tutorial or a readme somewhere online where i could learn how to check? Thanks!

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