Philips CD582 can`t read.

ZuMbAiU · 24th March 2006, 01:29 PM

I don`t know what is this situation-I have 3 players with CDM4 and only one works great-2 deads-Marantz CD-65DX(CDM4.11) and Philips CD582 (CDM4.19).
Now I work for this CD582.
In this tread I can find pictures for the PCB!
This is the problem.I start the player-all is great.
I put one original CD-Daft Punk -Human After All.
The player start reading.I can hear one very strange cracking noise from my CDM4.19.I can illustrate the movement of the laser here.

Positions :
1. This is the permament position of my laser.I think that this is a problem because the laser of my working great CDM4.19 have a permament position 3.
2.When I push any CD and the laser try to read this is the position when the laser is at most close to position 3.
3.This is may be the normal position of the laser?
It`s too strange but on the back side of the PCB I find one soot formation under the SAA7220P/A.
I can`t dream for any exact reply but may be for any direction.
I love the good sounding of the TDA1541A-this may be the best DAC for me(very natural sounding)

ZuMbAiU · 25th March 2006, 08:14 AM

Guys i know that I am too impatient,but I don`t know from where I can start looking.Now I am sure for the TDA8808 and the TDA8809-no any bad solder joints.The PCB connectors also haven`t any bad solderings.I check this ,because for Netlist(our forum member) this can be the problem.
I don`t know but the problem is may be in any chip and where is this 6544 transistor on the PCB.I haven`t any big experience with the CDM4 and Philips and also with any CD-Player.I want to start from anything but for this I ask for any help

EDIT: My working player with this CDM4.19 start reading from position 3 to position 1 and when I turn off the player I find the laser in position 3,not in position 1 like the dead player.The CDM4.19 work great on my second player with this transport and laser-the problem is in anything on the PCB

Netlist · 25th March 2006, 08:34 AM

Quote:

Originally posted by ZuMbAiU
I can hear one very strange cracking noise from my CDM4.19.

Is that mechanical noise from the transport or do you hear it in the speakers?

/Hugo

ZuMbAiU · 25th March 2006, 09:00 AM

This very strange cracking noise is mechanical like the noise from the good working player when he try to read any very old and damaged CD.I can compare this noise to any mechanical buzz.

Original Burnedfingers · 25th March 2006, 09:23 AM

It sounds like maybe there is a problem with the CD transport/ tracking section. The laser assy moves via a worm gear assy in most CD players. If you are hearing a cracking noise and the laser does not go to position #1 I would assume the worm gear and other gears are damaged. There is also probably a retaining clip which holds the motor assy and this might have dropped off.
The fact that the CD player is playing other tracks indicated that there isn't a problem reading the CD but rather a problem of the lens assy being in the proper position to read track 2 and track three.

When you have it unplugged and out of the player examine the underside and move the gears to see if there is damage or a mechanical problem before trying to change any electronics. I don't think there is a problem in the electronics.

ZuMbAiU · 25th March 2006, 09:46 AM

@burnedfingers : I try with this mechanics,transport,laser on my second Philips with CDM4.19.The player work great.When I try with the transport and laser from my working player on this player I have the same effect-this cracking mechanical noise and one very strange snap on moments.
The problem is in the electronics.For this I can be sure.

Original Burnedfingers · 25th March 2006, 09:50 AM

Sorry,

I guess I missed that you had interchanged the two of them. If the transport works correctly when you put it in the other player then that assembly is ok and the problem is on the board of the offending player.

Netlist · 25th March 2006, 11:24 AM

I have no specific cure but what about the PSU capacitors? Do they look/measure OK?

/Hugo

ZuMbAiU · 25th March 2006, 11:42 AM

@Netlist-New PSU capacitors-I know for the cold start with this players.
Can you help me to find the 6544 transistor and what is this transistor?
What the PCB have a soot formation under the SAA7220P/A?
From where I can start looking?

Netlist · 25th March 2006, 11:57 AM

I don't have the schematic so I can't tell about the 6544.
Any possibility to take a picture of that soot?

/Hugo

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24th March 2006, 01:29 PM	#1
ZuMbAiU diyAudio Member Join Date: Jan 2006 Location: Bulgaria,PZ	Philips CD582 can`t read. I don`t know what is this situation-I have 3 players with CDM4 and only one works great-2 deads-Marantz CD-65DX(CDM4.11) and Philips CD582 (CDM4.19). Now I work for this CD582. In this tread I can find pictures for the PCB! This is the problem.I start the player-all is great. I put one original CD-Daft Punk -Human After All. The player start reading.I can hear one very strange cracking noise from my CDM4.19.I can illustrate the movement of the laser here. Positions : 1. This is the permament position of my laser.I think that this is a problem because the laser of my working great CDM4.19 have a permament position 3. 2.When I push any CD and the laser try to read this is the position when the laser is at most close to position 3. 3.This is may be the normal position of the laser? It`s too strange but on the back side of the PCB I find one soot formation under the SAA7220P/A. I can`t dream for any exact reply but may be for any direction. I love the good sounding of the TDA1541A-this may be the best DAC for me(very natural sounding)

25th March 2006, 08:14 AM	#2
ZuMbAiU diyAudio Member Join Date: Jan 2006 Location: Bulgaria,PZ	Guys i know that I am too impatient,but I don`t know from where I can start looking.Now I am sure for the TDA8808 and the TDA8809-no any bad solder joints.The PCB connectors also haven`t any bad solderings.I check this ,because for Netlist(our forum member) this can be the problem. I don`t know but the problem is may be in any chip and where is this 6544 transistor on the PCB.I haven`t any big experience with the CDM4 and Philips and also with any CD-Player.I want to start from anything but for this I ask for any help EDIT: My working player with this CDM4.19 start reading from position 3 to position 1 and when I turn off the player I find the laser in position 3,not in position 1 like the dead player.The CDM4.19 work great on my second player with this transport and laser-the problem is in anything on the PCB

25th March 2006, 09:00 AM	#4
ZuMbAiU diyAudio Member Join Date: Jan 2006 Location: Bulgaria,PZ	This very strange cracking noise is mechanical like the noise from the good working player when he try to read any very old and damaged CD.I can compare this noise to any mechanical buzz.

25th March 2006, 09:23 AM	#5
Original Burnedfingers diyAudio Member Join Date: Nov 2002	It sounds like maybe there is a problem with the CD transport/ tracking section. The laser assy moves via a worm gear assy in most CD players. If you are hearing a cracking noise and the laser does not go to position #1 I would assume the worm gear and other gears are damaged. There is also probably a retaining clip which holds the motor assy and this might have dropped off. The fact that the CD player is playing other tracks indicated that there isn't a problem reading the CD but rather a problem of the lens assy being in the proper position to read track 2 and track three. When you have it unplugged and out of the player examine the underside and move the gears to see if there is damage or a mechanical problem before trying to change any electronics. I don't think there is a problem in the electronics.

25th March 2006, 09:46 AM	#6
ZuMbAiU diyAudio Member Join Date: Jan 2006 Location: Bulgaria,PZ	@burnedfingers : I try with this mechanics,transport,laser on my second Philips with CDM4.19.The player work great.When I try with the transport and laser from my working player on this player I have the same effect-this cracking mechanical noise and one very strange snap on moments. The problem is in the electronics.For this I can be sure.

25th March 2006, 09:50 AM	#7
Original Burnedfingers diyAudio Member Join Date: Nov 2002	Sorry, I guess I missed that you had interchanged the two of them. If the transport works correctly when you put it in the other player then that assembly is ok and the problem is on the board of the offending player.

25th March 2006, 11:24 AM	#8
Netlist diyAudio Moderator Join Date: Jan 2003	I have no specific cure but what about the PSU capacitors? Do they look/measure OK? /Hugo

25th March 2006, 11:42 AM	#9
ZuMbAiU diyAudio Member Join Date: Jan 2006 Location: Bulgaria,PZ	@Netlist-New PSU capacitors-I know for the cold start with this players. Can you help me to find the 6544 transistor and what is this transistor? What the PCB have a soot formation under the SAA7220P/A? From where I can start looking?

25th March 2006, 11:57 AM	#10
Netlist diyAudio Moderator Join Date: Jan 2003	I don't have the schematic so I can't tell about the 6544. Any possibility to take a picture of that soot? /Hugo

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