Playstation as a CD playback device?

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Nick
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#31

Post by Nick »

Do you mean you are supplying the high voltage where it needs the low?
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al newall
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#32

Post by al newall »

Do you mean you are supplying the high voltage where it needs the low?
No.

Both circuits as shown, appeared to function and measure properly, until they are connected to the PS1. Then the PS1 either doesn't respond at all or doesn't work properly.

I got it working by taking the output voltage from C9 and adjusting it down to 3.6v. Thereby bypassing the last stage. (R6 is a variable resistor in my circuit.)

When i get time i'll rebuild the last stage on a separate board and see if it makes a difference. Might be easier to see if i went wrong somewhere.
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#33

Post by Graeme »

Greta, worth the effort/money then.

What Tx's are you using?
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al newall
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#34

Post by al newall »

Yep, worth the effort.

But who's this Greta? :D

Toroid with twin 12v secondaries.
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#35

Post by Graeme »

Ooops, ive let your secret slip there :lol:

I may give this a go when ive finished everything else!!
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al newall
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#36

Post by al newall »

Work on the PS1 has come to a halt, for the time being.
Due to the arrival of a new family member.

Image
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Graeme
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#37

Post by Graeme »

Cool, love pugs. My friend has a little fat black pug, great thing he is.
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al newall
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#38

Post by al newall »

First night in a strange house.
What does he do....?

Sleeps from midnight till 7am. :)
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#39

Post by Andrew »

al newall wrote:First night in a strange house.
What does he do....?

Sleeps from midnight till 7am. :)
Ah false sense of security, they are not called poopies for nothing :shock:
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al newall
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#40

Post by al newall »

Yes, i'm sure there will plenty of surprises in store. :)
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Dave the bass
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#41

Post by Dave the bass »

al newall wrote:
Image
Awwww....he's frowning :D

DTB
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al newall
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#42

Post by al newall »

Difficult to know what he's thinking at the best of times!
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Graeme
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#43

Post by Graeme »

WTF WTF WTF, hungry, tired. WTF WTF WTF, hungry, tired. WTF WTF WTF, hungry, tired. WTF WTF WTF, hungry, tired.

At a guess :lol:
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al newall
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#44

Post by al newall »

WTF WTF WTF, hungry, tired. WTF WTF WTF, hungry, tired. WTF WTF WTF, hungry, tired. WTF WTF WTF, hungry, tired.

At a guess
That seems to be pretty much spot on.

Anyway, i rebuilt the second regulation stage on a separate piece of stripboard. It outputs 4v instead of the quoted 3.6, but it does now work with the PS1.
I think the zener might be to blame as it operates at 4v rather than 4v3. I only have two of these and they're both much the same. Anyone know if this is common?

Not too bothered because there is further regulation on the PS1 motherboard apparently, and there's no sign of overheating. Also the LM317s are running slightly cooler than before.

Next step to re box it all.
Difficult to make much progress with a puppy hanging off yer trouser leg. :shock:
Much to learn there is.
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Dave the bass
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#45

Post by Dave the bass »

al newall wrote: Difficult to make much progress with a puppy hanging off yer trouser leg. :shock:
Big Turn-ups? :lol:

DTB
"The fat bourgeois and his doppelganger"
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