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Memory problem receiver does not retain memory after it is unplegged from the mains power

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  • Audio Player... Master
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You need to hunt around for a memory retention capictor, they often cause the fault you describe.

Posted on Oct 08, 2009

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My Audiovox 136-4804 XM receiver will not retain favorite channels any longer. I am assuming that there is a rechargeable battery inside. Any help is appreciated.


Main system control memory IC fault. Check and replace it. Visit this site to get more details. http://electronicshelponline.blogspot.com/
There is no such battery inside it to retain the memory.

Feb 01, 2017 | Audiovox Cameras

1 Answer

I have a pioneer DEH 150 radio it's loses its memory when the isolator switch is turned off in the tractor?


The radio has been wired incorrectly so no 12v battery power is applied to retain memory when the isolator switch is turned off.

Jan 02, 2017 | Pioneer Car Audio & Video

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Batterie disconected,no power


The Yellow wire is connected into permanent 12v (to retain memory settings)
The RED wire is connected into ignition switch (to turn on when key in Accessory or ON position).

Mar 01, 2013 | Kenwood EZ500 CD/MP3/WMA Receiver

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Bio passwod removal hp laptop


How to Reset an HP Laptop BIOS Password


Reset the password on any HP laptop.

Reset the BIOS password on an HP laptop computer when it has been forgotten or when preparing the laptop for sale to a new owner. Learn how to erase an unknown BIOS password by physically disconnecting the internal batteries. Avoid spending hundreds of dollars at a service center to make changes that can often be performed at home by anyone with the ability to take an HP laptop apart and put it back together again.

Items you will need

  • Small screwdriver set
  • Flashlight
Step 1

Power down the computer if necessary by holding the power button down for six seconds until the power shuts off.
Step 2

Disconnect the power cord from the HP laptop computer. Remove the battery by flipping the computer over onto its cover and releasing the battery clips as indicated by the illustrations on the bottom of the laptop or in the owner's manual. Lift the edge of the battery nearest the clips up first, then pull the battery out of the laptop.
Step 3

Remove the screws that hold the hard drive cover in place and remove the cover. Take the hard drive out of the laptop by removing the two retaining screws and pulling the drive gently away from the connector, then lifting the hard drive bracket or tray out of the computer.
Step 4

Remove the screws that hold the memory compartment cover in place, then remove the cover. Remove the memory modules from the sockets by spreading the metal retaining clips gently apart and allowing the module to spring upward. Pull the memory straight out of the socket at the angle it rests at when sprung from the retaining clips.
Step 5

Remove the Real Time Clock (RTC) coin cell battery from the memory compartment by pressing the retaining clip and pulling the coin cell battery out of the socket.
Step 6

Allow the computer to sit without the battery for an hour, then reinstall the memory and hard drive, but leave the coin cell battery and the main battery out of the system. Connect the AC power adapter to the system and power it on to clear the BIOS password.
Step 7

Power the system back down and remove the power cord to reinstall the coin cell battery and main battery.

hope this helps


John

Nov 17, 2012 | Microsoft Windows 7 Home Premium 64BIT...

1 Answer

Vsx-d608 won't retain memory


swap your red and yellow wire that supply your cd player chop and swap as one is memory the other is ignition to simply swap the red and yellow wire will solve your problem "BILLINGHAM AUTO ELECTRICS" !!!!!!!!!!

Apr 04, 2012 | Audio Players & Recorders

2 Answers

Onkyo TX-DS777 does not retain settings after power loss


No internal battery, a large "SuperCap" on the main board acts as one. Look for C8007, 0.1 F, 5.5V.

Apr 26, 2010 | Onkyo TX-DS777

2 Answers

Marantz SR-18EX Loses Memory and Has Distortion on Center Ch.


There is a 1 Farad "super capacitor" that needs to be replaced. You need soldering skills to do it. The board is accessible if you remove the front panel of the receiver. The part # is DB-5R5D105; you can get them on eBay for about $2.00 each. Regarding the center channel issue, you may have a bad solder joint on the P781 connector on the P774 board. This is the board that houses the output transistors for the 3-channel main amp board (P704). If not these solder joints, you have a weak driver transistor on P704, and troubleshooting would probably be best left to a pro. Good luck!

Aug 17, 2009 | Marantz SR-18EX Receiver

1 Answer

CR-H100 CD/Tuner/ Amplifier. New about 5 years ago. Tuner won't retain presets. Despite following manual's instructions on both auto and manual tuning, the preferred programme settings are almost always...


These resceivers have a bulit-in device to retain some electricity to feed backup memory. It can be a battery or a capacitor and I think they have reached their time to be replaced.

Nov 21, 2008 | Teac Audio Players & Recorders

2 Answers

Air conditioning and heating controls


heater is unpleged cheak with car heater is pulged are unpleged

Jun 06, 2008 | 2002 GMC Sierra

2 Answers

Station Memory Loss Pioneer VSX-108


The problem is IC 701. I looked it up as far as pricing and it costs around 78 dollars. I am not planning on replacing it as it is not worth it.

Sep 11, 2007 | Pioneer VSX-108

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