Rotel RCD965BX LE Problem

johnmarkp · 30th April 2004, 12:31 AM

I received a 965 BX LE and tested it for just a few songs before doing mods. It ran fine. After changing the opamps, pulling the muting transitors and replacing the RCA plugs I am having weird problems.

When I insert a disc the player finds it just fine then plays it for 10 seconds. It then resets itself and re-reads the disk like I have just inserted it. I also get and error when I press the program button (not sure if this is related).

I searched here and tried most of the suggestions; checked the solder joints, cleaned the lens and lubricated the ball. Nothing has helped. I have had skipping CD players before and they would skip ahead on the disc. This thing never does that it just resets.

I am looking to find a CDM4/19 to try, but I am wondering if it might be something else. Any help would be appreciated.

John

TDA1540 · 30th April 2004, 04:07 PM

The cdm will be ok.

Algar_emi · 30th April 2004, 04:36 PM

I have the RCD-965BX service manual. Do you want a copy?

Bye...

TDA1540 · 30th April 2004, 04:39 PM

certainly!

Rotellian · 30th April 2004, 05:22 PM

I for one would love a copy - i had one but lost it when i moved house much to my dismay

johnmarkp · 8th May 2004, 09:47 PM

I wanted to bump this up and see if anyone can help. I tried a different laser unit that I know works and I get the same behavior. It runs for 10 seconds then resets.

Any idea's??

John

TDA1540 · 9th May 2004, 08:29 PM

Now that you have established that the cdm is ok(as predicted),you could check the microprocesser.
-run the testmode if available
-you have messed with the killcircuit:check the supplyvoltages(sometimes connected)

And perhaps the scanbutton is stuck.

just some ideas...

martinn · 19th December 2012, 12:23 PM

I have a similar problem after exchanging 33 uf and 47 uf capacitors with same-sized oscons (47 are 16V instead default 25V) on my philips cd 584. Will try to put larger caps, but it seems the player just runs out of juice in some songs. Tested on pink floyd final cut, plays most tracks normally, but immediately resets on track 5 which has a loud beginning. Same with a few other cd's which have lots of bass.

Teachersrus2 · 11th March 2013, 10:35 AM

I wonder if anyone here can help me. I own two of the above machines which are absolutely stunning - real improvement on a current Arcam FMJ sacd 37 at £1400!

If you see one buy it.

Trouble is came down the other day and one was just reading error. The motor was not turning and while laser moves it is not on. Having a standard one around I swapped lasers and motors.. To no effect.

Can anyone help with some ideas and if possible send me a service manual to drgrahamlewis@gmail.com - kind of struggling here and really want to get this fixed.

Any simple mods to further improve also welcomed - I will fit a rock clock and psu at some point. Obviously the discrete output board and tons of black gates all help...

Graham

mr-mouse · 16th May 2013, 06:12 AM

I have a rotel 965bx service manual i can send ... still required?

30th April 2004, 12:31 AM	#1
johnmarkp diyAudio Member Join Date: Apr 2004 Location: Wisconsin	Rotel RCD965BX LE Problem I received a 965 BX LE and tested it for just a few songs before doing mods. It ran fine. After changing the opamps, pulling the muting transitors and replacing the RCA plugs I am having weird problems. When I insert a disc the player finds it just fine then plays it for 10 seconds. It then resets itself and re-reads the disk like I have just inserted it. I also get and error when I press the program button (not sure if this is related). I searched here and tried most of the suggestions; checked the solder joints, cleaned the lens and lubricated the ball. Nothing has helped. I have had skipping CD players before and they would skip ahead on the disc. This thing never does that it just resets. I am looking to find a CDM4/19 to try, but I am wondering if it might be something else. Any help would be appreciated. John

19th December 2012, 12:23 PM	#8
martinn diyAudio Member Join Date: Mar 2012	maybe recheck capacitors? I have a similar problem after exchanging 33 uf and 47 uf capacitors with same-sized oscons (47 are 16V instead default 25V) on my philips cd 584. Will try to put larger caps, but it seems the player just runs out of juice in some songs. Tested on pink floyd final cut, plays most tracks normally, but immediately resets on track 5 which has a loud beginning. Same with a few other cd's which have lots of bass.

11th March 2013, 10:35 AM	#9
Teachersrus2 diyAudio Member Join Date: Mar 2013	Rotel 965bx LE discrete I wonder if anyone here can help me. I own two of the above machines which are absolutely stunning - real improvement on a current Arcam FMJ sacd 37 at £1400! If you see one buy it. Trouble is came down the other day and one was just reading error. The motor was not turning and while laser moves it is not on. Having a standard one around I swapped lasers and motors.. To no effect. Can anyone help with some ideas and if possible send me a service manual to drgrahamlewis@gmail.com - kind of struggling here and really want to get this fixed. Any simple mods to further improve also welcomed - I will fit a rock clock and psu at some point. Obviously the discrete output board and tons of black gates all help... Graham

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30th April 2004, 04:07 PM	#2
TDA1540 diyAudio Member Join Date: Feb 2004 Location: Ehv	The cdm will be ok.

30th April 2004, 04:36 PM	#3
Algar_emi diyAudio Member Join Date: Oct 2002 Location: Canada, Qc	I have the RCD-965BX service manual. Do you want a copy? Bye...

30th April 2004, 04:39 PM	#4
TDA1540 diyAudio Member Join Date: Feb 2004 Location: Ehv	certainly!

30th April 2004, 05:22 PM	#5
Rotellian diyAudio Member Join Date: Sep 2003 Location: UK	I for one would love a copy - i had one but lost it when i moved house much to my dismay

8th May 2004, 09:47 PM	#6
johnmarkp diyAudio Member Join Date: Apr 2004 Location: Wisconsin	I wanted to bump this up and see if anyone can help. I tried a different laser unit that I know works and I get the same behavior. It runs for 10 seconds then resets. Any idea's?? John

9th May 2004, 08:29 PM	#7
TDA1540 diyAudio Member Join Date: Feb 2004 Location: Ehv	Now that you have established that the cdm is ok(as predicted),you could check the microprocesser. -run the testmode if available -you have messed with the killcircuit:check the supplyvoltages(sometimes connected) And perhaps the scanbutton is stuck. just some ideas...

16th May 2013, 06:12 AM	#10
mr-mouse diyAudio Member Join Date: Feb 2009	I have a rotel 965bx service manual i can send ... still required?

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