Denon AVR-5800 Service Bulletin

100 Corporate Drive Mahwah, NJ 07430

Service Bulletin

No. : OST-638
Date:

April 26, 2007

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Model: AVR-5800

Subject: Countermeasure for Pop Noise on the PRE Output.

Symptom: The unit produces the Pop Noise when switching functions.

Solution:

Please apply the following modification (upon claim only).

On the EXT IN VOL Unit (1U-3295):

1) Replace “2SC3326” muting transistors, TR805, 806, 809, 810,813, 814, 817
and 818 with new KTC2875 Transistors. (Eight transistors)

2) Replace 10-ohm resistors R827, 828, 843, 844, 859, 860, 875 and 876 with
new 220-ohm resistors. (Eight resistors)

Parts:

Ref #

Description Part Number Description Part Number

TR805, 806,

2SC3326 273 0414 906 KTC2875 273 0460 905

809,

810,813,

814, 817,

818

R827, 828,

RM73B--100J 247 2002 964 RM73B--211J 247 2005 987
843, 844,
859, 860,

875, 876

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