rotel rcd-930ax service manual

jjanderson · 16th July 2008, 01:52 AM

Hi i have a Rotel RCD 930RX i need a service manual, the player plays and initialize the cds but every 5-15sec. the player
"jump" he shortly abort the replay.
I have already cleand the lens but with no result.
Can somone help me.
Thanks

Mooly · 16th July 2008, 06:38 AM

What's the type of laser unit fitted? A fault like this is just as likely to be mechanical, e.g. a sticking sled or faulty spindle motor. You really need to 'scope the R.F. signal coming off the disc to make a more informed judgement.

jjanderson · 16th July 2008, 01:10 PM

The laserunit is a kss-210a

Mooly · 16th July 2008, 01:31 PM

Erm 50 - 50 really. The 210 is cheap enough ( I have replaced many of these, well into 3 figures ). Spindle motors can give trouble (The one the disc sits on), so try this. Unsolder both wires to motor -- quickly don't overheat the terminals -- and run the motor with a PP3 9volt battery for 5 secs or so each way. This helps clean the commutator. Worth trying. Make sure the pickup is free to move and the gears are clean. Then fit a new pickup. Remember they come with a blob of solder shorting the laser to protect it so this needs removing once fitted. It should work out of the box -- no adjustments -- but obviously it's better if you have a scope so you can see whats going on.

16th July 2008, 01:52 AM	#1
jjanderson diyAudio Member Join Date: Jun 2008	rotel rcd-930ax service manual Hi i have a Rotel RCD 930RX i need a service manual, the player plays and initialize the cds but every 5-15sec. the player "jump" he shortly abort the replay. I have already cleand the lens but with no result. Can somone help me. Thanks

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16th July 2008, 06:38 AM	#2
Mooly diyAudio Moderator Join Date: Sep 2007	What's the type of laser unit fitted? A fault like this is just as likely to be mechanical, e.g. a sticking sled or faulty spindle motor. You really need to 'scope the R.F. signal coming off the disc to make a more informed judgement.

16th July 2008, 01:10 PM	#3
jjanderson diyAudio Member Join Date: Jun 2008	The laserunit is a kss-210a

16th July 2008, 01:31 PM	#4
Mooly diyAudio Moderator Join Date: Sep 2007	Erm 50 - 50 really. The 210 is cheap enough ( I have replaced many of these, well into 3 figures ). Spindle motors can give trouble (The one the disc sits on), so try this. Unsolder both wires to motor -- quickly don't overheat the terminals -- and run the motor with a PP3 9volt battery for 5 secs or so each way. This helps clean the commutator. Worth trying. Make sure the pickup is free to move and the gears are clean. Then fit a new pickup. Remember they come with a blob of solder shorting the laser to protect it so this needs removing once fitted. It should work out of the box -- no adjustments -- but obviously it's better if you have a scope so you can see whats going on.