AVR 350 (serv.man3) - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 18

 

 

- Page 9 of 14 - 

 

 

 

Report No.  90401 

 
 

 

 

Voltage(V) 0,9 or 1,1 times rated voltage………. 

253V 

— 

 

Ambient temperature(℃)…………………………… 

23 - 26

°C 

— 

Comp. 
No. 

Location  Fault  

Test V 

Test 
time 

Fuse 
No. 

Current 
through 
fuse 

Temperature/Results 

Top 
cover 
opening 

Top Blocked 

253 

23 min. 
45 sec. 

F901 2,35 

A  Unit shut down after 23 min 45 sec.

Input current stabilised at 0,018A. 
Dielectric strength test OK. 
No hazard. 

Top 
cover 
opening 

Side Blocked 

253 3 hr. 

F901 

2,35 A 

Normal operated. 
The components are heated up to :
-Main transf. pr. Winging  : 87,9K 
-Main transformer core  : 55,9K 
-Sub transf. pr. Winging  : 61,1K 
-Sub transformer core 

: 49,9K 

-PWB near D992 

: 72,3K 

-PWB near D991 

: 77,4K 

-PWB near Q803 

: 50,9K 

and stabilised. 
Dielectric strength test ok. 
No hazard. 

 

 

 

 

 

 

 

 

F No = Fault Number, S-c = Short-circuit, Dis = Disconnection, O-I = Over Loaded