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Old 7th August 2007, 11:26 AM   #1521
Dommi is offline Dommi  Germany
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Location: Frankfurt
Hi @all,
can we talk again about why you don`t use a battery supply instead or parallel to the analogue PSU ?

BR Dommi
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Old 7th August 2007, 11:34 AM   #1522
Puffin is offline Puffin  United Kingdom
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Dan. Thanks for that. I have a 1002 which I tried in stock form and thought it was rubbish. I then modded it by taking the signal out, straight off the pads by pins 15 & 16 and addings caps and resistors and new phono sockets. Wow what a difference. if the PSU takes it to another level again, then it is worth the outlay.
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Old 7th August 2007, 12:34 PM   #1523
Mick_F is offline Mick_F  Germany
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Quote:
Originally posted by Puffin
if the PSU takes it to another level again, then it is worth the outlay.

Yes it does. Try it
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No statement here.
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Old 7th August 2007, 09:52 PM   #1524
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Default Battery Power

Hello Dommi
Yes i am very interrested in using battery power for PS1
since this is the purest power possible
I think after reading these 61 pages on this thread
There was very little information about it Infact the only info i found was that batt power is not suitable for PS1 Maybe i missed something
Now I believe a lot of people would like to now how you are doing it
How do you get the 7.6 and 3.6 volts required and how are you charging the batt
I visited your site and did not find info about it

By the way I purchased 2 more Ps and measured the laser
The values are like you explaned 1.46 to 1.48 for bias and around 1.80 for gain
Thanks for the info

Greetz and enjoy
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Old 8th August 2007, 03:35 AM   #1525
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Hi chips666,

Have thought about battery power with
regulators and decent amount of reserve
capacitance. Maybe a 12volt 7ah battery
would give a reasonable operating time
between charges.

I have recently installed a BAM (PSONE)
grey laser assembly. Did not have to tweak
it just had to modify the SCPH1002 case and it
seems very articulate and I like the sound.
Perhaps the BAM's history of running in the little
PSONe without having to deal with the power
supply in the same case may be an advantage.
Must move the power board outside the PS1
but for now have a copper dam between the
boards so not so much heat reaches the
laser assembly area. Either external power or get
on and convert the thing to run on the gel cell.

Regards

AnthonyPT
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Old 8th August 2007, 04:06 AM   #1526
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Has any other console been tried? I found the Dreamcast isn't a bad cd player when I lived in my Apartment and had my Dreamcast doing double duty ( game console and CD Player for my stereo) to save space. It sounded better than my Optimus CD-7300 6 cd changer.
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Old 8th August 2007, 07:46 AM   #1527
Dommi is offline Dommi  Germany
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Default Re: Battery Power

Hi chips
it`s verry easy to use a battery for power supply. Take a 12 V minimum 7 AH lead akku. Use a simple voltageregulator like LM317 an regulate the 7,6 V power. With a second regulator on the output of the 7,6 V regulate the 3,2 V. With a 4 pole switch you can switch of the charger an switch on the PS1 and vice versa. I don`t had the time to discribe it on my homepage. But in a few weeks i think it will be there. I can switch between battery and norm pwr. with a relay. So i can make a direkt A/B comparison.The sound with battery supply is much better than ac supply. The music is much calmer than with ac power. With ac power sometimes the voice and the instruments seemed to move some centimeters. Now, with battery, there are still on the same place. And thanks for measurement of the laser powers. Do you have problems reading any kind of cd with this values ?

regards Dommi
Quote:
Originally posted by chips666

By the way I purchased 2 more Ps and measured the laser
The values are like you explaned 1.46 to 1.48 for bias and around 1.80 for gain
Thanks for the info

Greetz and enjoy [/B]
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Old 8th August 2007, 08:25 AM   #1528
Puffin is offline Puffin  United Kingdom
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Mick_F. I have been looking at the details of the Linear PSU on your site. I am not very good at reading schematics and I wonder if you can clarify the detials of the bridge rectifier.

On the two 7.6v boards you have 4 TO220's grouped together, they look like voltage regulators, but are they diodes ?
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Old 8th August 2007, 08:31 AM   #1529
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Puffin, I beleive those are the MSR860 diodes, however I couldn't easily get hold of any over here and so I went for the MULTICOMP
SB560 schotty instead (someone else tried several and this came out ontop) , available from farnell without newark extra duty (what a rip off!)

I'll get onto those pics as soon as possible.
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Old 8th August 2007, 08:44 AM   #1530
Puffin is offline Puffin  United Kingdom
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Dan. Is it not acceptable to use say a Maplin bridge rectifier, or IN400X diodes ?
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