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Dolby b nr asking for code - Car Audio & Video

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  • xxxxxx xxx Sep 28, 2010

    The radio SERIAL NUMBER will be required for a code

    On some radios, pressing Buttons 6 and 1 or 6 and 2 (together) may display a Serial Number.

    If not , then remove the radio from the dashboard.

    Then post the radio make+model plus all the letters+numbers on any labels,barcodes or stamped in the metal casing.

    This information can then be used to see if a code can be calculated
    For further useful information CLICK HERE

  • assaleh002
    assaleh002 Dec 05, 2012

    i ne the code of my dolby 500rds.serial number is M216664

  • assaleh002
    assaleh002 Dec 05, 2012

    i ne the code of my dolby 500rds.serial number is M216664



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SOURCE: Have 1996 BMW 328i Need a

the dealer gave you the code or go to the nearest bmw workplacea7d0503.tif

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I need help with getting a car radio code for a Dolby B NR. Model no 22DC259/62P

Try MFG website, or email customer service. If it was original install for the car, the Dealer will probably have it. You will probably need to bring it buy for them to see the vin number.

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I just got my new van and it had a dolby b nr radio in it and it is just saying wait on the screen i no i will need a pin if it works but not sure if it is broken or not many thanks rob

"Dolby b nr" isn't the brand.... it just means that it has Dolby Noise Reduction for the cassette player. What kind of vehicle is it? Does it appear to be the radio that was built into the vehicle? Do you see any other brand names on the radio (like the vehicle brand, or Infinity, or Delphi, etc)?

Jun 28, 2011 | Car Audio & Video

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I forgot my Dolby b nr 4 digit code

The radio SERIAL NUMBER is required for a code First remove theradio from the dashboard. Then post the radiomake+model plus all the letters+numbers on any labels,barcodes or stamped inthe metal casing. This information canthen be used to see if a code can be calculated

May 07, 2011 | Jeep Car Audio & Video

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When playing a tape on the right side the drive will stop as if at the end of the tape. This is during playback, seems to be random and may happen several times. Also, What is the difference between...

First - your drive problem. Nearly all tape decks use belts to drive the various parts from a single motor. When belts get old, dirty, or worn, they slip. At some point, if the tape gets a bit "heavy" the belt doesn't have the torque to keep things moving. You can try cleaning the belt if you can get to it. Use some isopropyl alcohol and a lint free paper towel. This may only provide a temporary fix and a new belt may be needed. If you have one of the high-end direct drive units (rare in side by side decks) then the drive motor has an issue.
Ah Dolby. Where to start. To answer your question as asked, B and C refer to different "curves" used by the Dolby to reduce tape noise.B came first obviously. The real issue with ANY Dolby is that it is a 2 part system. A tape must be encoded with a Dolby unit for proper playback with Dolby. So, you would have to know that the tape was recorded with Dolby B and you would select Dolby B for playback. The Dolby will "appear" to reduce noise on any tape because it will roll off the high frequencies but the frequency response will be all messed up. To further complicate this mess, any Dolby circuit really needs to be properly calibrated to work 100% as intended. In consumer gear, this is nearly impossible so they settled for a close approximation. In pro studios, Dolby encoded tapes included set up tones at the front of the tape so the engineer doing the playback could align his system to the recording system. All that complexity is why DBX came along with their system but Dolby had good marketing and it was "close enough" that people liked the hiss reduction even when applied to a non-encoded tape. Of course, people tolerate MP3s for the convenience too.
Anyway, hope that helps. Look for the Dolby symbol on the recorded tape. If it is there, it will tell you if it is B or C curve - select accordingly. If not- it probably was not encoded and you'd have better frequency response using the "off" setting.

Oct 23, 2010 | Audio Players & Recorders

1 Answer

Hello What is the difference between the recording NR switch b/off/ c

If you record a track with NR (standing for Noise Reduction) on it will sound brighter than with it off. The B and C sounds like it's Dolby B and Dolby C type noise reduction. C is better than B, but it's up to you to decide which you like best. Both systems were developed to deal with the problem of tape hiss. Most commercial tapes use Dolby B. If you record with either Dolby on it is best to play it back with it on, as it can make the tape sound more hissy, switched off. But if you don't record with it on, then putting Dolby on to playback would make it sound dull.

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The console indicates Enter Security Code ..... it

I'm having the same issue. did you get an answer?

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Is it the factory radio for that car? If it is then just take the car to your GM dealer and tell them you need your radio unlocked. They can get it done in 5 minutes and, in the case where I had to have them help, they didn't charge me a dime.

Good Luck

Oct 08, 2009 | 1999 Chevrolet Malibu

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