Question about Sony STR-V555ES Receiver

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HI, I have a sony v555es amp and it gives me the following error message "protector OPT.....please power off"

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You might be trying to push it too hard, or you might have a short somewhere. Disconnect everything from the reciever except its power cord and turn it on. If it still goes into protect mode, then try to find a reset switch (not sure if this is on the Sony, some recievers have them). If it's NOT in protect mode, then you had a speaker wire shorting out on the back. Make sure that you don't have any stray wires when you connect the cables on the back of your receiver. It only takes one strand of copper to short out the amp section. If that doesn't work then pull the top cover off and chech the fuses out. One of them might be blown.

Tom

Posted on Jan 01, 2009

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There's no sound with my STR-V555ES 5.1 channels and there is protector in display


It is possible that the amplifier had encountered a fault with a higher current drain which had triggered it to a protection fault condition. The fault can be with your output drivers. Please check for short on the outputs fitted for both the channels. Use a meter after disconnecting to check for short in the drivers. Disconnect the positive and negative voltages to the output and see if the protect changes. Even a fault in the preamp stages that drives in high current into the output can shut the Amplifier. Sometimes this can be a noise which can be a HUM or HISS before the protect works. Faulty capacitors in these circuits also can cause similar issues and needs close observation.You need to confirm and replace the specific stages or outputs. If not there can be issues in the mother board. Maybe the protect circuit by itself is shutting off due to a faulty bias or there is a leak in any voltage/current sensing circuit. Also disconnect the speakers and test, if the amplifier comes out of the protect mode then check for short on the speakers.

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1 Answer

When playing DVD, it's sometimes display 'PROTECT' and stop playing.


Check if you receive the error when playing any DVD in particular.

What happens when you take out the DVD and try playing it again? Does it play

This protector error denotes several possible problems. Heat, volume level and incorrect DVD settings may be the cause of the problem. The following steps will help you correct your problem and rid your amp of its "Protector" error.

  • Examine your volume setting to be certain that your volume knob is not at maximum. Having your volume cranked too high can cause the capacitors to overheat, shutting down the receiver.
  • Unplug your receiver and disconnect your speakers from the terminals on the back. This will allow you to determine if the error is internal. Plug your receiver back in and look for the same error message. If you continue to get the protector error without having your speakers connected, you may have an internal electrical problem. In this case, contact Sony about finding a repair center.
  • Reconnect your speakers one at a time. The order of connection doesn't matter. When reconnecting, be sure that you do not have your positive and negative speaker wires crossed in any way. After each connection, test your amp by running it with a source. Give each speaker a few minutes of power before connecting the next one. This will help you isolate which speaker terminal is causing the error. When the protector error returns, take note of which speaker connection caused it. Check this speaker wire for shorts or torn shielding.
  • Examine your ohm rating of your speakers if you have no shorts or wiring issues. Sony receivers are not compatible with speakers lower than 4 ohms. Connecting a lower ohm-rated speaker will cause an error.
  • Turn off the surround sound option if you have both your A and B position speakers in use.
  • Keep your receiver well ventilated. Overheating due to poor ventilation can also cause Protector errors.
  • Examine the sampling frequency of your connected DVD player. If the error only occurs when you watch a DVD, the sampling frequency of the DVD player may be set too high. Check the sampling rating in your receiver's manual and in the DVD player

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Error code - protector


Try disconnecting all the speakers from the back and turn the unit back on. If the "protector" display goes away, turn the unit back off and reconnect one speaker. Turn it back on and check for "protector". Repeat.

If you find that one of the speakers causes "protector" to appear, you either have a bad speaker cable or bad speaker. Try swapping each of those out to see what happens.

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Power protect is an error message that some thing is wrong in your sound system and requires qualified tech.

Normally that error message appears when unit got problem in amplifier output section, either it is speaker problem or some output chip is fried.

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Its detecting a short somewhere.Make sure all speaker cable connections dont have stray wire shorting outputs

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Error message 0xc0620004 411:lib_Micci2.c


Hi,

Please follow the below given instructions to resolve the issue as this issue may occur because of ink system failure of the All-in-one.

Please follow the below given instructions to resolve the issue.

Please remove the All-in-One Printer from the Power Surge Protector and plug it directly into a wall Power outlet, as the surge protector may not provide enough power to printer.

Please perform the step given below to power cycle the unit after removing the print cartridges from the printer:

1. Verify that the unit is switched on. Unplug the all-in-one from power and disconnect the USB cable from the computer.
2. Wait 30 seconds.
3. Plug in the power only
4. Repeat steps 2-3 two more times.
5. On the third time after plugging the unit into power, reconnect the USB cable from the all-in-one to your computer.

Clean the cartridges by following the below given instructions:

Using a clean, dry lint-free cloth (a coffee filter works well), wipe the cartridge contacts, from the top to the bottom. The contact area of the cartridge should be rubbed briskly to remove the waxy lubricant material from the gold contacts. The contacts inside the printer may also require cleaning. Using a clean, dry, lint-free cloth, gently wipe the contacts, from the top to the bottom.

Also clean the cartridge carriage rod with a soft lint free cloth to resolve the issue.

Even if the issue persists, then try resetting the All-in-one to factory defaults.

Reset the All-in-One to the factory default settings by using these instructions:
1. Unplug the power cable from printer when the printer is powered on and wait for 20 seconds.
2. Then, press and hold # and 6 while plugging in the power cord.
Continue holding until it displays Semi Full Reset message in the front panel of the All-in-One.

Note:
A semi-full reset will do the following:
The user settings to the factory defaults, Language and country settings on some models, Fax logs, Fax headers, Fax speed dial information.

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1 Answer

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Try setting your amp to "auto format decode".
It should easily be heard in this mode.
The sub will not show up on the display when in 5.1 mode. (Blue light on)
Use this with music, and use the 5.1 with movies to get a better experience from your amp.
The sub will work in 5.1 but doesn't show up in the display. Try movies with loud sounds.
Most of the pre-set sound fields are of no use to me. I only use normal surround, and AFD and love it. I hope this works for you!
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