posted
OK tech guys, this one is for you. I know AFTER the transformer a Playstaion runs with 12 volts.... sooo my Q is, where do I solder the wires to on the board. This is a first gen PS1. Not PS2.
posted
Coming in off the 120v input should be a small transformer and one bridge rectifier package (or two transistor package diodes or four discrete diodes). Thereafter should be one or two small capacitors (16v <1200uf probably, somewhere around there).
If it were me, I would probably hardwire to the cap(s).
EE's.. If I screwed up, speak up!
ShadowStar
------------------ Still looking for that CHEAP Thunderdome :D
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Posts: 2578 | From: Somewhere In the Northeast | Registered: May 1999
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posted
I agree with Shadowstar on where to connect it. I can take my PS1 apart and see where is a good place. I would also go the extra step of putting a linear regulator in line so that you don't hurt anything when the car is running. Depending on the chips used or how the power supply in the PS1 is set up, the difference between 12V and 14.5V could make the difference between a working game and a broken POS.
posted
be careful here. i think the ps1 are running on a 7.5 volt. so i reccomend just going out and getting a universal 12v transformer that can supplt 7.5 and hard wire the transformer instead.
posted
Well, since you have a DC source, you can't change the transformer.. If you need to step the voltage down, you're looking at zener or linear regulation power supply.. CALL SONY and ask them what voltage the PS runs on, or better yet, measure it straight off the power supply caps (if there is any which there should be) with a DMM. Note.. To do this you will have to apply 120v to the powersupply WITH the CASE OPEN. You could recieve lethal shock from this and I do NOT suggest doing it unless you know what you're doing.
That said, its pretty simple.. Open the case, find the capacitors next to the transformers, flip the board over to find their solder pads. Plug it in, turn it on, measure the voltage across those solder pads with a DMM, turn it off, unplug it. This is the voltage you need. If it isn't around 12v, you can't do this job simply.
If its 14v, you're all set.
ShadowStar
------------------ Still looking for that CHEAP Thunderdome :D
Got Ears? Get Oz!
You can't build a reputation for what you're GOING to do.. But you can build one for TALKING about it!
-Eclipse-Rockford Fosgate-Oz Audio-Precision Power Inc.-AudioControl-Stinger-Tsunami-Clifford
It's all about knowledge, love and respect.
Posts: 2578 | From: Somewhere In the Northeast | Registered: May 1999
| IP: Logged |
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