Denon avr-3808ci ost-f1561 Service Manual

Page of 8
 
100 Corporate Drive Mahwah, NJ 07430
 
 
       
 
 
 
Service Bulletin
 
No. : 
 OST-F1561 
Date:
 
August 18, 2009 
_____________________________________________________________
 
 
Model:
 
AVR-3808CI, PAY-Upgraded AVR-3808CI 
 
 
 
 
Subject: 
Correction of the Firmware via DPMS (Denon Product Management 
Server).
 
Countermeasure is applicable only upon claim from the customer.
   
 
 
 
 
 
 
Symptom:
 After main power off/on, Parameter check [DISTANCE] shows 
SURR.BACK speaker instead of SUBWOOFER. 
 
Solution:    
METHOD OF UPDATE via DPMS (Denon Product Management Server) 
Read me first!
 When you already updated the firmware of the unit via "DPMS", it 
is not necessary to initialize the customer’s unit again. At this time, please skip 
item "7-1 Preparation of the update ". 
 
Preparation of the update.  
We didn’t show this preparation Instruction on Instruction Manual. Please explain 
additional this Instruction to the customers when updating the firmware. 
 
Caution:
 It is necessary to initialize the unit before the update work begins.  The 
customer has to initialize their A/V product.  Please update the firmware after you 
confirm this matter to the customer beforehand. 
 
1) Turn off the "Power switch" of unit.  
2) Open the door on the front panel.   
3) While holding the "△" and "▽" buttons (SYSTEM CONTROL) down 
simultaneously, turn the "Power switch" on.   
4) The FL Display indicates all digits at interval a second.   
5) Turn off the "Power switch" of the unit. 
 
______________________________________________________________________________________ 
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