Service Manuals, User Guides, Schematic Diagrams or docs for : DENON AV Surround Receiver AV Surround Receiver Denon - AVR-3300 Service Bulletin OST-615

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                                  100 Corporate Drive Mahwah, NJ 07430



                                                                                       Service Bulletin
                                         No. : OST-615
                                         Date: January 23, 2007
_____________________________________________________________

Model:               AVR-3300


Subject:             The cooling fan is noisy.


Symptom: The customer complains the cooling fan is too noisy.


Solution: Lower the voltage to the Cooling Fan.
Apply the following modification to the Regulator Unit (1U-3201-1):
1) Remove the Jumper-wire JV23 from the P.W.B. and replace it with an 82,
1W resistor.
2) Replace diode ZD901 (MTZ12A) with an MTZJ9.1CT77 style diode.


Parts:

    Ref#                   Description                                         Part Number
    JV23               RS14B3A820JNBST(S)                                      244 2055 983
   ZD901                  MTZJ9.1CT77                                          276 0635 917




______________________________________________________________________________________
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applicable laws and terms of the DENON Service Agreement. Any distribution, disclosure, dissemination or copying of this
document and the information it contains is prohibited. No responsibility will be accepted by DENON for any damage, injury or loss
resulting from the misuse of the information contained in this document.

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