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Old 14th November 2009, 04:44 PM   #31
nad is offline nad  United Kingdom
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Originally Posted by Bill Fuss View Post
Also, if you still have the original parts you could reinstall them and check the operation before you go any further.
The original parts were 2 tiny ceramic caps and a resistor which I discarded when removed, so that's not possible. I don't even know the values to replace them.

I shouln't really be messing with stuff I have no idea about. Shame, it keeps costing more money to fix. I've now spent 3 times the amount of the initial cost of the brand new player on bits and bobs and all I've gained is a non worker.

Boooo.
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Old 14th November 2009, 09:41 PM   #32
nad is offline nad  United Kingdom
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I'm in need of testing the output of the IC, there's little info on the net apart from this pdf here: http://www.toshiba.com/taec/componen...94A5460MFG.pdf

As I have no output, do I need to check pins 57 to 60?? and/or any others to see if I've cream crackered the IC???

Thanks
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Old 14th November 2009, 10:00 PM   #33
nad is offline nad  United Kingdom
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I just did a quick test on my player and found the strangest thing........ When the player is on, the output turns to ground, but when the board is removed with no power, it's not!

What the hell is going on??????
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Old 14th November 2009, 10:46 PM   #34
nad is offline nad  United Kingdom
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Anyone?
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Old 15th November 2009, 12:39 AM   #35
nad is offline nad  United Kingdom
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Default Super spankin great......

Fantastic...........................

After all that it was a silly little break in the circuit.
The circuit was broken from the Toshiba IC on the MCLK track to the dac where the old oscillator sat, oops, too much heat.

Good stuff, so after 6 weeks, 67 replacement caps, 3 Class D regs, opamps, CMC silver rca's, alot of dampening, a re-wire, a clock kit, a 12v toroidal, reels of mundorf solder, removal of un-needed bits, burnt fingers and alot of shouting, it's finished and the brucey bonus is............. it sounds great!

There's a photo attached if anyone's interested.

Chow fa now
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Old 15th November 2009, 12:50 AM   #36
kevinkr is offline kevinkr  United States
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I think we've all had those moments.. Glad you found the problem.

What do you think of this external clock as compared to the original crystal/internal oscillator?
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Old 15th November 2009, 09:36 AM   #37
nad is offline nad  United Kingdom
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I think we've all had those moments.. Glad you found the problem.

What do you think of this external clock as compared to the original crystal/internal oscillator?
It's probably the most cost efficient clock upgrade out there, I'm not saying it's anywhere as good as those reference clocks which cost upto 20 times more but I can gladly say it's a huge improvement over the standard oscillator.

Chuffed!
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Old 15th November 2009, 11:01 AM   #38
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I knew you would get it straightened out, you now are a bona fide, fearless, DIY solder slinging crazy man, just like the rest of us.

Best regards, Bill
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Old 15th November 2009, 03:32 PM   #39
nad is offline nad  United Kingdom
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Originally Posted by Bill Fuss View Post
I knew you would get it straightened out, you now are a bona fide, fearless, DIY solder slinging crazy man, just like the rest of us.

Best regards, Bill
I like that, made me laugh!!!
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Old 15th November 2009, 09:23 PM   #40
kevinkr is offline kevinkr  United States
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I like that, made me laugh!!!
Me too..

At some point I'll have to check out that oscillator kit for my shigaclone..
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