Question about Marantz CDR-310

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Marantz CDR310 Will not keep changes to settings when powered OFF/ON Keeps resetting to default. New CMOS battery? Units only over a year old. Any ideas thanks!

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There is no battery in these units. I will check the service manual tonight and try to get yu a detailed response.

Dan

Posted on Feb 26, 2009

  • ABRsvcs Feb 26, 2009

    My mistake. There is a battery under the CD drive. You must remove the drive completely and then remove th board underneath it. The battery you need is a CR2032. Be very careful when opening up the unit as there are a number of cables that can be damaged.



    Dan

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1 Answer

Unit starts/stops-starts/stops after replacing 3v battery?


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Tip

Cmos Battery checksum


So you're PC is more than 3 years old and keeps forgetting things.<br /><br /><span style="font-weight: bold;">Symptoms:</span><br /><br />1.PC keeps forgetting Time/Date<br />2.CMOS CHECKSUM FAILURE<br />3.CMOS BATTERY STATE LOW<br />4.CMOS SYSTEM OPTIONS NOT SET<br />5.CMOS TIME AND DATE NOT SET<br />6.No Operating System<br /><br /><span style="font-weight: bold;">Why does it happen:</span><br /><br />There is a 3 Volt lithium battery which keeps such data fresh and as any other battery, it must be replaced when depleted.<br /><br />Precautions:<br />1. Get rid of any static electricity in you're body by wearing a grounded wrist strap<br />2. Disconnect power cable<br />3. You may damage the main board if battery is replaced incorrectly<br />4. Do not touch anything else in the computer<br /><br /><span style="font-weight: bold;">How to do fix it:</span><br /><br />3. Remove side cover of desktop (some have screws and some just a simple lock and slide)<br /> (it should be the left cover (front facing) you and whole cover in case of a slim case)<br /><br />4. Locate a shiny rounded metal which looks like a coin and reads CR2032 (may be found in watch repair shops, Radio Shack, etc..)<br /> some PCs use a cylinder type battery a technician may be required to replace itt.<br /><br />5. Remove battery<br /> <br />6. Replace it with a fresh one keeping in mind orientation of battery (the + sign on top in case of horizontal mounting)<br />7. Put back cover<br />8. Connect power cable<br />9. Boot PC and press "DEL" or "F2" (may be different) depending on vendor to enter setup and update relevant data (Time/Date,on-board raid, etc..)<br />10. Press F10 to save and exit <br /><br />good luck.<br /><br />please rate for more sharings... Thanks

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1 Answer

Advent 5431 date keeps changing back to 2008


IS your TimeZone is Correct?
Right click on your clock, choose Adjust Date/Time.
Click Time Zone Tab. Make sure your Time zone is correctly set.


Boot into the BIOS (setup) screens and check the date and time there. If the date is off by years then that verifies you need a new CMOS battery. Do not confuse the CMOS battery with the large external battery you run the computer with.

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1 Answer

Cmos setting not saved


Look at the CMOS reset jumper, located near the battery:
86f0a83.gif
For normal operation there should be a cap shorting pins 1 and 2.
Set the jumper correctly, make sure it really shorts these two pins (once I've seen a jumper cap that didn't have the metal connector inside, only plastic), replace the battery and it should keep the CMOS settings.

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How do I replace a dead cmos on acer 4520LCi travelmate laptop? The laptop no longer keeps track of system time when shut off completely. Can you tell me the exact location of the cmos so I can be able to...


Hi,

what you replace is not the CMOS, but the CMOS battery.

On an ACER from those years the CMOS battery looks like a coin, or a coin wrapped in plastic and connected to the motherboard.

On most models from same series the battery is located on the lower side of the motherboard, like on picture below:

83493ee.jpg

On some model the battery may be located underneath the keyboard.

Here disassembly instructions for a similar model.

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It doesn't It is like a flash light battery.It is only on when the computer is turned off to keep the BIOS settings. Try replacing the battery,if date is not kept.

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Go to your Bios Settings. Change the System Date there.

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You said that you already bought a new cmos bat, but still theres a problem.check the cmos battery socket,power on tyour pc and go to cmos setup,optimize default setting and set time and date.

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2 Answers

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there is a jumper near the board cmos battery. try to clear cmos by changing the jumper to the other position for some seconds (while power is off) so smos is clear.
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