Denon avr-3803 ost-766 Service Manual

Page of 1
 
100 Corporate Drive Mahwah, NJ 07430
 
 
       
 
 
 
Service Bulletin
 
No. : OST-766 
Date:
 May 2, 2007 
_____________________________________________________________
 
 
Model:
 
AVR-3803 
 
 
 
 
 
 
 
 
Subject: 
Replacement of a Maintenance Service Part (Regulator IC made by 
KEC) due to a manufacturing defect.
 
 
 
 
 
 
 
 
 
 
Symptom:
 Regarding the Regulator IC used for the subject model, defective 
parts were found during the production process at the Regulator manufacturer. 
Therefore, from now on, please prohibit the use of this regulator and delete the 
part number of this Regulator IC. Also, please replace the regulators in your 
service section's stock with the following changed ones.  
 
Solution:  
Use the part number outlined below when ordering a replacement 
regulator. 
 
Parts: 
 
FORMER NEW 
Ref # 
Description 
Part Number 
Description 
Part Number 
IC606 
KIA78R09API 
263 1180 038 
KIA78R09PI 
263 1163 000 
Note:  
• Please replace the old Regulator IC for maintenance service in your stock with 
the improved IC. Regarding the old ICs, please scrap them after the collection. 
• Please use the improved new IC when replacing the subject IC upon performing 
maintenance service for the product.  
• Please revise the description in the Service Manual at your service section. 
 
Serial Number Range: 
All 
______________________________________________________________________________________ 
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