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Re: Sony DAV S500
The protect indication is because of a fault detected in the amplifier section. If this appeared occasionally before and cleared itself, it suggests bad connections. If you know how to solder, open up the unit and resolder any connections that appear grainy or have rings. That may solve the problem.
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If the problem returns with connection of the sub it may be defective or on its way out. Internal damage to the voice coil from being overdriven could have melted or worn through the insulation and it would cause intermittent undesired electrical contact or load variation under certain conditions, like high volumes.
If your speaker level settings are unusually boosted for the sub you may be overdriving it.
The DVD Upgrade is an advanced modification to your DVD player, which adds extra features and enables you to get more from your machine. The upgrade supplements the DVD player and in no way harms the playback quality or removes any performance features of the machine.
The following DVD players are supported by this version of the DVD Upgrade:
Sony DAV-C700 Sony DAV-S400 Sony DAV-S500 Sony DAV-S800 Sony CMT-S9D
Macrovision & CGMS disable
All DVD players have a system called Macrovision built in to the player, which is designed to stop the copying of DVD discs to video. However, this system can have adverse affects on some projectors. For this reason the DVD MOD Upgrade disables Macrovision to solve any problems.
Put your player into „Standby“ Mode and enter one of the following commands if necessary:
Remote control command Function  [ENTER] Default Default region code on the player  [ENTER] Region 1  [ENTER] Region 2  [ENTER] Region 3  [ENTER] Region 4  [ENTER] Region 5  [ENTER] Region 6  [ENTER] Region 7  [ENTER] Region 8 [Arrow down] [ENTER] Only play DVDs with the selected region; auto switching OFF [Arrow up] [ENTER] Default Auto switching ON [PREV I<<] [ENTER] Enable video interference impulses (Macrovision ON) [NEXT >>I] [ENTER] Default Disable video interference impulses (Macrovision OFF) [Arrow left] [ENTER] Enable user operation prohibitions* and access restrictions [Arrow right] [ENTER] Default Disable user operation prohibitions* and access restrictions
* The DVD can no longer prohibit you from using the fast-forward, chapter change or Audio-/Subtitle-/Angle switch. You can no longer be forced to watch intros. Just press [TITLE] or [DVD MENU] and select PLAY.
I know that almost all new equipment since 99 or so on up has these. They are too sensitive. This is a system program that will put stereo in protect mode when turned up loud or have a lot of bass on to stop from blowing audio outputs.
Umm, this isn't just a DVD player, It.s an amplifyer too. Just leave the speaker cables alone, plug in the new dvd player into the "video2" jack, yellow cable onlt. Then,plug the audio cables into the video2 jacs (the red and white ones). Select "video2" on the SonyDAVS300 and "video2" on the tv. Insert the dvd into the new player and enjoy. It's screwy but it works through the amp and sends the picture to the tv.
Well for the issue of the audio it usually protects when you are approaching the maximum that the internal workings of the system can handle. This also happens when it is overheating. Try to limit your maximum usage of the system to 5-10points below may.