20 Most Recent Optimus Sta-3750 Sta-3760 Stereo Receiver Remote Control Cat 31-3047, 31-3048 - Page 4 Questions & Answers

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I have an Optimus STA

Hi gordon_d_woo,

The receiver has two special protection circuits:

1. The thermal overload protection circuit automatically turns off the receiver's amplifier if it overheats.

2. The overdrive protection circuit automatically turns off the amplifier if too much power is being drawn from it.

If a protection circuit turns off the amplifier, the PROTECTION indicator comes on.

If this happens, press POWER to turn off the receiver's power. Check for proper ventilation and proper speaker connections, and be sure the speakers have an impedance of 8 to 16 Ohms.

The protection circuits usually reset in only a few minutes, so you can turn on and use the receiver again. The circuits seldom take longer than 30 minutes to reset.

If the receiver stops working and the PROTECTION indicator is not on, please replace the Fuse.

Hope it helps.

Thank you for using FixYa.
6/4/2011 3:54:06 PM • Optimus Audio... • Answered on Jun 04, 2011
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Does not come on, bad

check the fuse if thats good check the plug if you have a volt meter
11/6/2010 2:18:14 AM • Optimus Audio... • Answered on Nov 06, 2010
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I have a Optimus STA-3750 am/fm stereo receiver

I have the same receiver, but have been unable to program it with my Universal Code. I do not have the original remote. Did you find a code that controlled it? I found one website that had the owners manual online, maybe that would help: http://support.radioshack.com/support_audio/doc58/58124.htm
5/20/2010 6:59:17 PM • Optimus Audio... • Answered on May 20, 2010
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How do I reset the protection mode on my Optimus

You can not "reset" protection mode. This is an indication of a defect. Disconnect the speaker wires completely and if the protection mode remains, then the problem is internal to the unit and is likely to be shorted output transistors. Expect a parts cost in the $20-$50 range for this repair.

Dan
3/26/2010 11:38:04 AM • Optimus Audio... • Answered on Mar 26, 2010
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I have an Optimus Model

Hey

This is most likely a dirty laser lens on the CD drive. You can try a CD lens cleaner, but they don't work all the time.

To do a better cleaning job, open up the unit yourself so that you can get to the laser lens, use a qtip and dip it in alcohol 70% and wipe the lens clean.

Here is a example video on how to clean a laser lens, you clean all the laser lenses this way:


After cleaning the lens, it should work normally. if it does not, attempt to clean it atleast 2 more times.

If the problem still remains, the laser or the optics are failing, you might be able to fix the issue by replaceing the laser assembly on the cd drive. But It may be cheaper to replace the unit instead of replacing hard to find parts.
9/6/2009 6:49:48 PM • Optimus Audio... • Answered on Sep 06, 2009
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I need a replacement rubberband for my optimus lab

GO ON THE WEB FOR WWW.AUDIOLABOFGEORGIA.COM THEY CAN HELP YOU
8/24/2009 1:56:22 AM • Optimus Audio... • Answered on Aug 24, 2009
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Need belts for

Your best bet is to contact MCM electronics and use their cross-reference service to get a more common belt number. They should have the belts that you need. I would give you the numbers, but I don't have a listing for your specific model.

Keep us posted.

Dan
3/4/2009 1:21:59 AM • Optimus Audio... • Answered on Mar 04, 2009
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My Optimus STA 3190 has no AM/FM

Hi rowdy

The fact that you are getting static at least is good. Without knowing allot of the background to your problem, first thing to check is if the aerials are correctly connected. If it is any help to you, here is an excerpt from the original owners manual about the connection of the AM loopstick.
If the aerials are coinnected right, then let me know and we can investigate other options. Cheers

regards
robotek

12/10/2008 11:43:24 PM • Optimus Audio... • Answered on Dec 10, 2008
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Vocalizer 3 output checked cables and swapped out. 1300 watt power adaptor lights up. sound indicator light is on but no sound. tried mono and stereo. power adaptor problem?

If the display is working, you have audio. Check your amplifier. 1300Watt adaptor ... This unit draws a very low power and that is not needed.
4/24/2024 7:18:55 AM • Audio Players &... • Answered 14 hours ago
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How do I change to degree mode on my porpo YH-2000

  1. Power Off: Turn off the device.
  2. Jumper Configuration: Locate the jumper labeled "S16" on the device. Initially, it should be connected to pins 2 and 3.
  3. Power On (Alarm+All LEDs Flashing): Turn the device back on. You'll see the alarm LED and all other LEDs flashing.
  4. Power Off Again: Turn off the device once more.
  5. Jumper Adjustment: Change the jumper configuration from pins 2 and 3 to pins 1 and 2.
  6. Finished: Your Porpo YH-2000 is now set to the desired angular unit mode.
If you encounter any issues, you can press the reset switch on the back of the device to reinitialize it.
4/20/2024 8:57:52 PM • Audio Players &... • Answered on Apr 20, 2024
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Panasonic SA-PM250 CD stereo system. Tune dab radio sa pm250?

this model SA rather than SC seems to be a Middle East model. The SC version doesn't have DAB. https://www.google.com/search?q=panasonic+sa-pm250+instruction+manual ..
4/20/2024 5:59:04 PM • Audio Players &... • Answered on Apr 20, 2024
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1answer

Setting time on fmdott085 V398

All questions need clear 'make model (what it is)' first 3 words. https://www.google.com/search?q=fmdott085+V398 ..
4/17/2024 4:54:26 PM • Audio Players &... • Answered on Apr 17, 2024
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Openfit Shokz battery replacement?

Question edited for clarity, typo and CAPS. Question moved from Cars and Trucks category. Claim on the warranty irrespective of how long you have had them. They charge $180 but they cost them $20 to buy from China. Package them up and send them tracked and ask them to replace the batteries. How long is the warranty on AfterShokz? While we hope you never need it, all new Shokz purchased from authorized retailers come with a two-year warranty that begins on your date of purchase. Jan 11, 2019

How To File A Warranty Claim For Your SHOKZ Headphones

https://www.google.com/search?q=Openfit+Shokz+battery+replacement ..
4/16/2024 4:58:24 PM • Audio Players &... • Answered on Apr 16, 2024
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