From: firstname.lastname@example.org (GOOSE) Newsgroups: alt.games.video.sony-playstation Subject: FMV SKIPPING PROBLEM FAQ Date: Thu, 27 Feb 1997 18:17:14 +0100 (this is best viewed with MONACO Font, size 9) OK, So you have the FMV Skipping Problem......well here are some instructions on how to possibly fix it or at least Improve it. What is the FMV SKIP?? It's self explanatory....you experience a skipping during FMV or CG animations and choppy sound probably for some music tracks. You can either take the technical route if you have electronics experience with a digital Multimeter or you can take the halfass route. Please note...the potentiometers are what are often referred to as the SCREWS that one needs to turn. The labeling of them is in very small white letter on the Circuit boards so use a magnifying glass if you don't have good eyesight 1st UNPLUG your PSX....and let it sit for like 10 -15 minutes so any energy which could roast you can dissipate you. Though there is very little chance of this if you are not a complete idiot...dont touch anything unless you have to which means...only turn the potentiometers. You will only plug the PSX back in to test if your adjustments have worked. Opening the PSX is a piece of cake....all you have to do is remove the 4 screws on the bottom of the machine....turn it back over and lift off the top case. If you are technically inclined.....by all means follow Mas' detailed instructions using the Multimeter. If you are not....my best recommendation is to turn the F BIAS Screw 1/8th of a turn but no more than a full turn. Always remember the initial positions of the potentiometers/screws so you can put them back if nothing happens. If you run into FMV (Full Motion Video) problems, here are a few tips you can do to either "fix" the problem completely, or at least "improve" it. 1. There are actually four (4) variable resistors (potentiometers) inside the system all are located near the power connector and the orange flat connector of the CD Drive Unit: 2 are marked as "F Gain" (pot. 1), and "F Bias" (pot.2), one is above the 4-pin power connector for the drive (US systems), or under the metal shield (JAP systems) (pot. 3), and the last one on the drive itself (pot. 4) 2. Do not blindly turn these pots without "first" recording their original values (in K ohms) so that if you mess things up (make the problem worse) you can always set them back to their old settings (values). Use a digital Multimeter to perform the next steps. 3. Record the values of all 4pots ( the following values are the ones I have recorded on both US & Japanese systems with NO FMV Problems, all measured with ALL Connectors attached. 4. Use a small flat head screwdriver to turn the pot either clockwise or counterclockwise to obtain the desired values: US SYSTEMS --------------------- Pot 1 Pot 2 Pot 3 Pot 4 -------- -------- -------- -------- 3.25K 11.97K 18.11K 0.00 3.73K 11.44K 21.91K 0.00 3.49K 12.26K 24.32K 0.00 3.16K 12.65K 25.05K 0.00 JAPANESE SYSTEMS ----------------------------------- Pot 1 Pot 2 Pot 3 Pot 4 -------- -------- -------- -------- 3.88K 11.26K 4.08K 0.00 5.84K 11.15K 3.40K 0.00 The values above are recorded by applying the 2 leads of the meter probes to Point (1) and (2) of the potentiometer diagram below. 1 O   2 3 After adjusting your PSX by whichever method you use, you can test it by plugging it back in (yes you can leave the top off when you test it), putting a disc in, depressing the lid cover button and turning the PSX ON.....(Choose a game with a FMV Intro to see if you fixed the problem). If the FMV Skip is still there or has gotten worse, continue adjusting. If it has improved, you may want to adjust a little more or try another set of Pot Values from above to see if they work better. That's it.... If none of this works......call SONY. Always make sure your PSX is on a level flat surface, and it has plenty of ventilation room underneath it. Note that the ventilation is the main culprit of this...especially if you play your PSX for long period of times. This information was posted by Mas in Fall 1996, and appended by me, so I have no idea where the pots or values are for the newer 5500 models of the PSX (i.e. the PSX with the Unified Multi-AV port).
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