Its strange as I would expect the transistors to have failed for a cap to burn out. Maybe the cap is another issue.
When you load the disc does the laser make a noise if you spin the disc with your finger.
Brent
When you load the disc does the laser make a noise if you spin the disc with your finger.
Brent
Also a long standing favorite of mine. The connectors between mech pcb and main pcb go faulty and doing a continuity test between shows up no fault.
This connector as caused me all sorts of problems in the past. From skipping to cutting off mid cd or not reading discs. I hard wire them now when they go wrong with two solder in ribbons.
Brent
This connector as caused me all sorts of problems in the past. From skipping to cutting off mid cd or not reading discs. I hard wire them now when they go wrong with two solder in ribbons.
Brent
This is strange. I have just removed the transport/laser and replaced it with the one from my test machine. Now when I load a disc it doesn't do anything.
Test mode 2 makes the disc spin out of control.
Mode 3 moves the sled but the laser no longer bobs up and down and the disc spinning slows down but doesn't spin at a constant speed.
Pressing play I now get error 02 - Focus error.
😕 🙁 
Test mode 2 makes the disc spin out of control.
Mode 3 moves the sled but the laser no longer bobs up and down and the disc spinning slows down but doesn't spin at a constant speed.
Pressing play I now get error 02 - Focus error.
😕 🙁
It certainly wouldn't hurt.
To improve sound quality you really need to run a coax from mech pcb to R501 on the HF circuit.
With this you get small gains in detail and treble info
Brent
To improve sound quality you really need to run a coax from mech pcb to R501 on the HF circuit.
With this you get small gains in detail and treble info
Brent
Thomo said:
Didn't you cannibalise parts from this previously?
rowemeister said:
I found a less digital sound, with smoother and more relaxed upper notes. I believe this is one of the key mods for making the treble sound less like white noise (along with reclocking the dac and servo).
Simon
Hi.
Don't worry about the cannibalising... I'll charge my mate for the replacement parts
- it's his player i'm working on
Call it payback for all the stick I'm getting off him
I have a Superclock II in my KI and had a brief look at the servo reclocking, but i'll have to look that up again. Do you recomend this or adding extra tx's to power 5v regs separately? I think I could only afford one or the other at the moment.
Lee.
Don't worry about the cannibalising... I'll charge my mate for the replacement parts
- it's his player i'm working on
Call it payback for all the stick I'm getting off him
I have a Superclock II in my KI and had a brief look at the servo reclocking, but i'll have to look that up again. Do you recomend this or adding extra tx's to power 5v regs separately? I think I could only afford one or the other at the moment.
Lee.
Both make major changes to the audio,
The servo clock is cheap and easy to make so there is no excuse on that one.
You can also fit cheap 7805 regs to the dac and feed them from the raw +10v rail until you want to build a better psu and fit better regs. Even this brings large gains.
Brent
The servo clock is cheap and easy to make so there is no excuse on that one.
You can also fit cheap 7805 regs to the dac and feed them from the raw +10v rail until you want to build a better psu and fit better regs. Even this brings large gains.
Brent
I reckon the servo clocking adds detail and refinement. I broke my player doing this mod, so be careful.
Adding a dedicated oversized transformer and psu for the 5v parts of DAC and decoder brought weight and solidity to the sound for me. This is compared to the extra 5v regs being powered from the original tx. Well worth £5 for an Ebay'd tx.
Only trouble is fitting the transformers in. You have two options. 1) as Brent did put small txs in player. 2) as I am doing add bigger transformers (easy but good option) to an external psu box. Of course the regs must still be in the player.
Next step for me is to add another transformer and use one for DAC/decoder digital regs and the other for DAC/decoder analogue regs.
I might use a further transformer just for the servo parts as we know these respond well to improvements. Give me a couple of weeks to dwell on it and get around to it!! 😉
Simon
Adding a dedicated oversized transformer and psu for the 5v parts of DAC and decoder brought weight and solidity to the sound for me. This is compared to the extra 5v regs being powered from the original tx. Well worth £5 for an Ebay'd tx.
Only trouble is fitting the transformers in. You have two options. 1) as Brent did put small txs in player. 2) as I am doing add bigger transformers (easy but good option) to an external psu box. Of course the regs must still be in the player.
Next step for me is to add another transformer and use one for DAC/decoder digital regs and the other for DAC/decoder analogue regs.
I might use a further transformer just for the servo parts as we know these respond well to improvements. Give me a couple of weeks to dwell on it and get around to it!! 😉
Simon
rowemeister said:
Yes?! How to? Already parts in the Ray's list? A Xtal?
Also, if I want separate rail for 5v, do I just need to build a second Raygulator?
Thanks
Malefoda said:
It really isn't that easy and it requires you to have installed a good clock board for the DAC already. It only works if your wiring is neat.
Furthermore, this mod is only applicable to the CD53/63. The CD67 gets this mod for free when the reclock the DAC.
Simon
Yes because the servo and decoder are one chip in the 67. Where the 63 uses two seperate chips and the servo has its own crystal.
Brent
Brent
Thomo said:
Ooh, quality. I especially like the big blue smoothing caps!
I said it needs to be neat because the thing doesn't work if the wire is too long from the divider to the servo clock input. Also it only works with certain coax wire, lol. Brent saying it's easy was giving his view as an expert, not a novice!
nub
He said he has a Superclock II didn't he?
Is that an Invisus regulator too?? How does your player sound? It looks interesting.
Simon
He said he has a Superclock II didn't he?
Is that an Invisus regulator too?? How does your player sound? It looks interesting.
Simon
I have a Superclock II. What type of coax would I need please?
The wiring is only still like that as I left it long enough to implement star-earth. Just haven't got around to it yet.
I will experiment on my backup machine first.
Lee.
The wiring is only still like that as I left it long enough to implement star-earth. Just haven't got around to it yet.
I will experiment on my backup machine first.
Lee.
I bit blured but you can see the servo clock fitted with its nice regulator + a more moody shot where you can see the coax coming off the clock (also superclock 2).
The other wires are for all digital signals to and from dac / decoder / servo)
You can buy thin 50 or 75 ohm coax by the meter from Farnell.
Brent
The other wires are for all digital signals to and from dac / decoder / servo)
You can buy thin 50 or 75 ohm coax by the meter from Farnell.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Brent
Here is a close up of the pcb
Brent
An externally hosted image should be here but it was not working when we last tested it.
Brent