I was wondering if anyone here was familiar with how to make POT adjustments to the SCPH-5501 Playstation model? Whenever I create a backup my Playstation sounds like it is working really hard to read the data off the disc. This causes the games to skip or lock up. I broke out my digital multimeter to try some POT adjustment settings I found on the web for other PS models but have had no luck fixing the issue I have reading CD-R media on my SCPH-5501. I was wondering if my mod-chip may have something to do with how the back-ups are played. I use a Gamer Hunter Pro that plugs into the parallel I/O port. I recently acquired a PSone and was wondering if anyone could suggest a good solution to modding this console to play imports and back-ups. I was looking into the swap disc solutions and was thinking of getting the PS-X Change 2 or the Breaker Pro.
You may not and likely don't need to adjust the POT. The laser angle might be bad. The Laser should point at a 90 degree angle straight at the disc surface. Over time certain models of laser assembly will get unaligned. I believe Assembler said you can easily correct the angle and fix your problem. Otherwise you can replace the whole laser assembly with a new one pretty easily. I'd advise against fucking with the POT. Your 5000 series probably need model ADM of laser assembly. Your PSOne you should just get someone to solder a modchip into it for you if you know someone. It's the most simple and effective way to handle that. You could use some swap disc with something to jam the lid sensor if that's easier for you, but be aware any game using redbook audio tracks won't work that way. Modchipping is recommended and modchips are cheap for PS1. It's mostly a question of if you can solder it yourself and if you can get ahold of a chip. I installed a modchip into a PSOne recently and it wasn't really that hard. You just have to take your time and plan.
Look like I messed something up when I pulled my 5501 apart. My discs no longer spin (retail or backup) but I can see a red light coming from laser, perhaps the motor is dead?. Not exactly sure what I did but I will try and adjust the laser and see if that is the issue. I was wondering if I may be using the wrong media for backups. I'm using Sony brand CD-R's but when ever I burn a game for myself they always skip. Had a friend create a few backup for me and they still work fine to this day so I must be doing something wrong when I create them. Anyway the PS is dead until I can figure out why my discs stopped spinning.
Edit: Forget it, I know what is wrong. The connector that you insert the power into is shot tore right off of the motherboard. Need to look for a 5501 mobo now or the entire unit. Well I did something to my 5501 model that I can't seem to reverse. No power seems to be going to to laser. I have the lid button presses down with some tape and my discs no longer spin. The 5501 still runs but the laser itself doesn't seem to be getting any power. Any ideas on why this may be? I have a replacement laser and get the same results. I'm wondering if the lid button is damage or if I fried any of the cables that connect the laser to the motherboard. Anyone here ever deal with something like this before and can offer some suggestions?
Did it rip traces off the board or something? Otherwise couldn't you just solder it back together or something? For "backups" Sony CD-Rs should work if you have a good burner. If you want a more premium burn you could try Taiyo Yuden.
Edit: Picture added I'll take some photos of the board and post them in about an hour or so when I get home. I'm not sure if I can solder this back on since I never soldered something before but I think this would be a good time to try. Thing is even when the connector was on the motherboard I was getting mixed results from my laser. I saw the red beam but the motor wouldn't spin. Then there were times when the thing was just completely dead. I took a look at the connectors and some of them were brown instead of silver which led me to believe the thing might be fried.
There is no damage. Just the solder that broke. The connector can be re-soldered to the main board by anyone who knows how to use a soldering iron. Edit: You should sand (or scratch that oxide away with a razor blade) and clean the 4 electric pins before soldering
Well I don't know anyone who can solder so I think I will go about doing this myself. Should l look for anything specific when I buy my soldering iron or will any soldering iron do? I know I can pick one up at Radio Shack but I was planning a PSone mod-chip install as well and figured I should order my stuff from the following website. http://www.modchip.ca/store/product.php?productid=16158&cat=257&page=1 http://www.modchip.ca/store/product.php?productid=16161&cat=257&page=1 As for a mod chip this would be another first for me so I figure this is the best one to get since it is all this shop offers. http://www.modchip.ca/store/product.php?productid=16151&cat=256&page=1 Any thoughts/suggestions on these items? Edit: Well I tried my best but I think the motherboard is screwed up. I think I ruined the system when I decided to mess with the POT adjustment settings. After soldering everything in place I still get the same results as before so I just decided to order another 5501 motherboard. On the flip side I fixed my Sega Genesis and can now play some Knuckles Chaotix. :icon_bigg
Hi there! I'm new here but I registered "only" for asking this: Im trying to find out how to set up the POT values for a PAL PS1 DTL-H1202.(the green debug unit based on the first SCPH version I suppose) I've got problem with the original laser so I've changed it with a new model of the more recent and smaller PS1. I've found out that it works "correctly" but sometimes I got a "spinning disc" problem. When the console boot the game at the beginning and the disc had to speed up(changing from 1X to 2X I think) sometimes it goes crazy and spin at an insane speed, then it stops and goes on reading. At the beginning I've tried to give the V values of 1,70 and 1,85 to the FBias and Gain Bias with no success then I've tried different ohm values according to this old guide http://www.gamefaqs.com/console/psx/file/916392/4696 (there are no PAL references) but the problem is still there. Do someone know some good values for set up the potentiometers on the old PSX models??
i used this one on my psx (scph-1001): http://www.mgboxall.force9.co.uk/focusbias.htm worked like a charm. i can't imagine a debug unit acting too much different from retails when it comes to lasers, so it should work
Thanks for replying but I've already seen this page, anyway with those values I got nothing working. But just today I've tried keeping a lower value for the fbias and it seems to work correctly! So I have an Fbias of about 1,54 and a Fgain of 1,84-1,85. Now the spinning problem seems disappeared. I've also ordered another PSone laser(the one mounted now comes from a dead PSone) to put on the PSX but it doesn't work :crying: It makes a very loud noise and it has serious problem reading a disc with some scratches in the fmvs :-( Tried with RRT4 and the amazing intro continuosly skip or freeze with almost every values..... the laser probably worn out by itself or is not an original one.... who knows. Is the blue color/plastic on the lens meaning something?? The old Psone laser working correctly has a good blue color while the latest one arrived today has a "pretty inconsistent color". EDIT: nope the problem is still there, maybe I have to found a better value for the third pot near the power connector of the laser.
