Shanling nightmare!!!

[Extreme_Boky]

I'm suspicious of these CDM/VAM units. I've just installed one in my player (cambridge CD4se) and it now jumps to any track without a fuss but ......... every now and then the music slows down and distorts like a bad drum n' bass record. Interesting effect but annoying and frustrating!!!

Check if the top magnetic “spinning” pack is scratching the plastic. Flatten the 4 rubber distancers to allow the whole mechanism to be positioned properly (vertically).

Boky

[Extreme_Boky]

deja vu all over again Post #36
Here's a sad update to the Shanling nightmare. The fix of replacing the cd mechanism wasn't long lived. It was working fine for awhile. Then the cd wouldn't spin without a little push and now even with a push it won't spin up. I just connected a 1.5 volt battery to the spindle motor of the original mechanism that I removed and it rotated at what looks to be a pretty decent and constant speed. I wonder if the problem can be in the logic circuit. Anyway I'm running out of patience and am thinking I may see if Shanling will repair it. Awhile back I mentioned the cd-t80 to USA Shanling distributor Music Hall Audio and they said they never heard of this model. Don't know if they will help with getting it repaired.

I am sorry to hear your nightmare. Here are couple of suggestions:

The fact that you used step up transformer could be the problem. Depending no Shanling design and capacitor ratings, it may be possible that higher than nominal capacitor voltage rating caused some damage. You were supplying more than 220V, which could produce DC voltage levels above capacitor nominal voltage levels.

Get the circuit diagram and check voltages around servo section. Check main power supply voltage levels first.

The new mechanism you installed probably had a solder bulb somewhere to protect the laser from static discharge; did you remove it?

Boky

[singa]

Originally posted by PhilM400
Here's a sad update to the Shanling nightmare. The fix of replacing the cd mechanism wasn't long lived. It was working fine for awhile. Then the cd wouldn't spin without a little push and now even with a push it won't spin up. I just connected a 1.5 volt battery to the spindle motor of the original mechanism that I removed and it rotated at what looks to be a pretty decent and constant speed. I wonder if the problem can be in the logic circuit. Anyway I'm running out of patience and am thinking I may see if Shanling will repair it. Awhile back I mentioned the cd-t80 to USA Shanling distributor Music Hall Audio and they said they never heard of this model. Don't know if they will help with getting it repaired.

Hi, There is a possibility that the flat data cable from the laser
is badly inserted or damaged.If it is reinsert again at both ends
or get a new one.Hope this helps.

[Sonusthree]

Originally posted by Extreme_Boky
Check if the top magnetic “spinning” pack is scratching the plastic. Flatten the 4 rubber distancers to allow the whole mechanism to be positioned properly (vertically).

Boky

Cheers EB! I'll try that before I replace the motor. It'll take a while to evaluate since it is an intermittent fault but I'll keep you posted. Thanks again.

Originally posted by Extreme_Boky
The new mechanism you installed probably had a solder bulb somewhere to protect the laser from static discharge; did you remove it?

Boky

These VAM's come with a metal clip across the ribbon connector instead of the usual solder blob.

Best regards,
Martin.

[Ralphies]

I was looking at this treat (allways usefull to read a lot).

I read about the soder bulb, i allways was wondering why there are in Philips 600 series cd-players a "fat"bulb of solde was put on the print, so that is for discharging!

Thanks.

And i wish you good luck with repairing your cd-player!

Greetings Ralphies.

[stevey88]

If you guys want to try another source for the transport, MCM electronics sell original Philips transport VAM1201, VAM1203 and CDM12.1 for $26.47. If that is the right model.

http://www.mcminone.com/product.asp?...5&info=details

[MadMutt]

Sorry to take this slightly OT, But,
Does anyone have schematics for the scd-t200c ?????????

[PhilM400]

Glad to say my Shanling cd-t80 is back to spinning cd's and sounding quite nice with the OPA2132's. All this without sending it to the repair shop. On seeing that the original cdm (that I had replaced) worked when I connected a 1.5v battery (post 36) I figured there might be an intermittent connection. I removed the screws holding the board that sits below the cdm. photo and gave a little push to all the plastic wire connectors making sure that they were seated properly. I put the board back in place and to my surprise it came back to life.

[Sonusthree]

Congratulations Phil!! Glad it worked out in the end.

[-(daz84)-]

Hello all i have a shanling t100se and when i turned it on tonight,It moves the cd anticlockwise in a few pulses then says no disc..... Im gutted to say the least but do you guys think the lazer mechanism is whats dead?Its what im thinking after reading this thread(Thankyou to phill) Any help is great,thanks.