Question about RCA DRC8335

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Resister burnt I need the value of resister RU83,It is on the VCR board. Thank you.

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  • Anonymous Oct 15, 2008

    I have the same problem. I found a Heat Damaged resistor and diode on the upper right side of the VCR PC board (by the power supply board). The location of the components are “RU83” and “DU83”. It appears that "DU83" shorted causing "RU83" to burn up. I was wondering if you happen to know the value for "DU83" (mine isn't readable). I would recommend that you check "DU83" if you have not done so already.

  • lesfix Oct 20, 2008

    DU83 is also shorted in my unit. I do not know the value, no markings on the part. On the board it is marked as a zenor diode and goes to a 47uf - 16 v capacitor. Thanks for telling me about the diode.

  • PicaDude Dec 14, 2008

    Same problem ... VCR section of my DRC8335 not working. Have buned-up Zenner Diode DU83 ... wish to replace it with proper value when discovered ... Reisitor RU83 looks OK. Thanks!

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My unit is showing 14.7v on DU83. That's getting too close to the 16v limit on that cap. RU83 in this one is 1K ohm.

Posted on Sep 07, 2010

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Guest and Lesfix. RU83 located on the DRC8335 VCR PCB is a 51ohm 1/4 watt 5% tolerence resistor, color coded green-brown-black-gold. As to zener diode DU83, I haven't been able to determine it's value yet but am working on the problem.

Be aware when either or both these components fry, this indicates you need to replace the following two overheating capacitors on the power-supply board, which were directly resonsibile for knocking them out:

• C216 1000µf 16 volt (upgrade to 35 volts)
• C218 1000µf 10 volt (upgrade to 35 volts)

Could you email me regarding this problem when you have time. Mention Fixya and DU83 in the subject line so I realize it's from you. Thanks. mikeadams110@yahoo.com

Posted on Dec 08, 2008

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