🙁 It is a pitty this idea did not come along when I was at it.
In my machine, the Servos are powered by the stock TX... And I am afraid to even open it up again now... Too complex.
I have to replace the capacitors mainly with my CD6003 analog supply (35V 1000μ) with Mundorf (4700μ 40V). Should I bypass a film 4.7 μ?
Ray says: bypassing a good cap is a bad thing. is always the case?
thanks
Last edited:
capacitor
In fact I know that the capacitors are used after the main film, capacitors 4.7UF. I would like some advice on what type to use. After Mundorf M-Lytic AG 4700 UF 40V The wima 4.7UF are ok?
Is a forum full of competent people and try to do things right. 😀
thanks
In fact I know that the capacitors are used after the main film, capacitors 4.7UF. I would like some advice on what type to use. After Mundorf M-Lytic AG 4700 UF 40V The wima 4.7UF are ok?
Is a forum full of competent people and try to do things right. 😀
thanks
Last edited:
You can do it all from the top!! just locate the links that run the unregulated supply. U161 and U162 will give you the supply to 2 of the drivers and U149 and U150 the final one!! You could add regs at the same time if you've not already done so.
It's not always the case... The Mundorf M-Lytic are not particulary low-ESR caps, so there could be some gain in bypassing them with a 4u7 film cap, to lower the impedance in the high-frequency region. Wima is fine, but any other A-brand is o.k. as well.
Ray
Hi guys,
i did a few mods-
reclock servo, all separate regs to all +5V (dac/decoder/HF),
and putting on separated transformer with regs on the chips TCA 03729(measuring 11/-11V).
Turning player on-not spinning,
check service mode-error 12.
Is 11/-11V too high for TCA0372?
Quan.
i did a few mods-
reclock servo, all separate regs to all +5V (dac/decoder/HF),
and putting on separated transformer with regs on the chips TCA 03729(measuring 11/-11V).
Turning player on-not spinning,
check service mode-error 12.
Is 11/-11V too high for TCA0372?
Quan.
Sled error. Are you sure it,s not just the ribbon? They do play up after a lot of plugging and unplugging.
I think we need some brainies here to help. I can't see it being the TCA 03729 voltage?
HELP
HELP
I would hate to think about reversing all the mods to work out the problem. It is looking like spagetti plate at the moment .
Quan
Quan
I'm sure some bright spark will be along to help soon! You might have to wait until tomorrow for someone in Europe.
Hi , i have swapped out the mech with a donor cdp but still showing error 12.
Any thoughts-
All voltages supplying the driver ic-SA 0372 from extra power supply measures 11V/-11V.
checking service mode. The player motor is ok,the sled moving up and down .
But still saying disc?
Any thoughts?
Any thoughts-
All voltages supplying the driver ic-SA 0372 from extra power supply measures 11V/-11V.
checking service mode. The player motor is ok,the sled moving up and down .
But still saying disc?
Any thoughts?
I can only think something is amis arround the TCA0372 (should be +10v out) or the servo TDA130IT or even the decoder 7345, but i'm not very technical in this area. I was hoping someone with the knowhow would be along shortly to help. There a quite a few of them out there. I'm sure someone will be along soon. Regards Barry
I dont think +-11v is too much. Might be helpful just to check the new wiring. Could just be a dry joint or lifted pad.
Hi quan,
The voltage is o.k., these drivers can handle 40V max. so that's not the problem.
You say you've reclocked the servo? Do you have a way to measure if the clock signal is actually there, like an oscilloscope? If not, place the resonator back and see if it works now.
Regards,
Ray
The voltage is o.k., these drivers can handle 40V max. so that's not the problem.
You say you've reclocked the servo? Do you have a way to measure if the clock signal is actually there, like an oscilloscope? If not, place the resonator back and see if it works now.
Regards,
Ray
Agreed, if you've removed the xtal, double check the clock wire to the servo. Make sure its on the right pin of the servo chip (IN not OUT) 🙂
Thanks for the help guys, yes i took out the xtal from servo and the assoc resistor. The new clock has 2 outputs which supply both the dac and servo and i grounded the servo xtal using its middle leg as per schematic,the input goes into pin 19 of the servo closest to the chip. The timezone difference is making it difficult as i need to head off to work now.
Will check the servo clock to make sure it is the right pin , or even swap it out to see.
Will report later ,many thanks
Quan
Will check the servo clock to make sure it is the right pin , or even swap it out to see.
Will report later ,many thanks
Quan
Last edited:
Hi ,just have quick look ,the input pin is correct on mine as furthest away from transport on R126.
May be it could be the clock then?
I saw it has 3 outputs for 33/16/8, i took out the last two but may be it does not allow that to happen.
Will check tonight.
Quan
May be it could be the clock then?
I saw it has 3 outputs for 33/16/8, i took out the last two but may be it does not allow that to happen.
Will check tonight.
Quan
In the absence of an oscilloscope to check, I would replace the original clock components and retest. Then add the clocks 1 at a time testing in between each change. Its a pain to keep getting the board in and out but its always best to test after each single mod. As I'm using an SE case with 2 baseplates, I've cut a hole in my chassis because its a nightmare to get the board in and out with all those regs and supplies!!!
On another note, here's a pic of the new modified CFP DOS in the player 🙂
On another note, here's a pic of the new modified CFP DOS in the player 🙂