Denon avr-5800 ost-638 Service Manual

 

 

       

 

 

 

 

No. : OST-638 
Date:

 April 26, 2007 

 

 

AVR-5800 

 

 

 

 

 

 

Countermeasure for Pop Noise on the PRE Output.

 

 

 

 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) 
 

 

TR805, 806, 

809, 

810,813, 

814, 817, 

818 

2SC3326 

273 0414 906 

KTC2875 

273 0460 905 

R827, 828, 

843, 844, 
859, 860, 

875, 876 

RM73B--100J 

247 2002 964 

RM73B--211J 

247 2005 987 

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