Panasonic RF-4900 / DR-49 shortwave receiver
Service Manual and Circuit Diagram
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Panasonic RF-4900 / DR-49 shortwave receiver<br>Service Manual and Circuit Diagram<br> <font color=red>New!</font>
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Very popular radio system, produced from 1978 till 1983. Excellent sensitivity, comfortable using, quality sound. Frequency range - АМ/SSB: 535-30150 kHz, FM: 88-108 MHz. Available BFO Pitch. Possible to connect external antenna. Also operates from eight D cells. The RF-4900 is similar to the earlier RF-4800, but with a green fluorescent digital display rather than a red LED digital display. AM and FM frequencies are digitally displayed. RF-4900 has been sold outside the United States as the model DR49.

So, the RF-4900, the same DR-49 is what it is. It's a nice sounding tabletop set that was designed to satisfy the listening needs of the average non-technical SWL'er. I think it does that very well. It is fun to use and has very pleasing, loud undistorted detected audio. Panasonic did something right in that area. Sure, it's not as stable as an Icom Pro in the SSB department...but touching up the BFO every once in a while was part of the radio experience thirty years ago. It does do a respectable job of SSB for casual listening. Sensitivity seems fine.

The Panasonic RF-4900, DR-49 shortwave receiver Service Manual. This service information is designed for experienced repair technicians only and not designed for use by the general public.


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We are in business since 2002 and do our best to give our customers perfect service!

  Julius Gee 2004-06-23 19:41:01  
  Excellent! I had an old 51 sitting around but no way to find out what was wrong. the error codes(blinks) are worth the 7bills I paid.
  Anonymous 2020-06-15 06:24:37  
  My Artisan 837 just tried to hose me with the waste ink pad error. The printer was working just fine then bam. I bit the bullet and bought this utility and it worked GREAT. Reset the ink pad error and all is well. Best $10 I've spent in a LONG time. Epson deliberately tried to end the printer life for NO REASON... cept to sell more printers. Do NOT let them get away with it. I'm sure eventually this thing will start printing poorly and THEN I'll buy another one....but until then Epson can....... etc..etc.
  Giovanni Inserra 2011-02-06 21:57:52  
  Semplicemente perfetto, tutto risolto in 2 minuti.
  Alan Page 2017-07-23 03:33:02  
  brilliant - absolutely brilliant. Thank you. Thought I would have to trash my printer and the unused ink cartridges. Only hiccup was needing to disable my security protection to install this wonderful product. Used it as a trial - which proved it worked - then bought the key to finish the job. I am wrapped as you have saved me hundreds of dollars as there is nothing wrong with the quality of the printing. Cheers, Alan.
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  That was very simply to use. I saved my printer life in 5 minutes. Thank you!
  Nelson Masayon 2013-03-03 18:44:17  
  Thank you so much! I saved two trips to the service center and saved more for the charges and time spent!!!
  kin thil 2007-02-08 19:44:43  
  I have reset the waste ink in my epson R230 printer. Worked fine
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Service Manual and Circuit Diagram
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