AVR 760 (serv.man3) - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 74

 

 

- Page 39 of 45 - 

 

 

 

 Report 

No. 

106189 

 
 

 

 

*), Q334 (C to E), S-c;  
Unit shut down immediately. Input current stabilised at 0,06A. 
Q336, Q328, Q324, Q232 damaged. R374, R372, R376 opened. 
No hazard. (Tested time: 10 min) 

N/A N/A 

**), Q336 (C to E), S-c;  
Unit shut down immediately. Input current stabilised at 0,02A. 
Q334 damaged. No hazard. (Tested time: 10 min) 

N/A N/A 

*), Q336 (C to B), S-c;  
Unit shut down immediately. Input current stabilised at 0,02A. 
Q334, Q336 damaged. No hazard. (Tested time: 10 min) 

N/A N/A 

*), C304, S-c;  
Surround right output off immediately. Input current stabilised at 3,05A. 
R352, R304, R368 opened. No hazard (Tested time: 30 min) 

N/A N/A 

*), D3005 (A to C), S-c;  
Unit shut down after 2 min 30 sec.  
Sub transformer primary winding heated up to 140.2K and thermal  
fuse opened. Input current stabilised at 0,01A. 
Dielectric strength test O.K.  No hazard. (Tested time: 2 min 30 sec) 

Sub transf. 

140.2 K 

Sub transf.

150 K 

*), C3025, S-c;  
Unit shut down immediately.  
Sub transformer primary winding heated up to 140.0K and thermal  
fuse opened after 2 min 40sec. Input current stabilised at 0,01A. 
Dielectric strength test O.K. No hazard. (Tested time: 2 min 40 sec) 

Sub transf. 

140.0 K 

Sub transf.

150 K 

*), C3102, S-c;  
Unit shut down after 3 sec. Input current stabilised a t 0,06A. 
F3001 fuse opened. D3101 damaged.  
No hazard. (Tested time: 10 min) 

N/A N/A 

*), D3101 (AC to “+”), S-c;  
Unit shut down immediately. Input current stabilised at 0,06A. 
F3001 opened. D3101 damaged. No hazard. (Tested time: 1 sec) 

N/A N/A 

**), D3101 (AC to “-”), S-c;  
Unit shut down immediately. Input current stabilised at 0,02A. 
F3001 opened. D3101 damaged. No hazard. (Tested time: 1 sec) 

N/A N/A 

*), C152, S-c;  
Unit shut down immediately. Input current stabilised at 0,06A. 
F3001 opened. No hazard. (Tested time: 1 sec) 

N/A N/A 

*), D4000 (AC to “+”), S-c;  
Unit shut down immediately. Input current stabilised at 0,06A. 
F3001 opened. No hazard (Tested time: 1 sec) 

N/A N/A 

*)  Tested voltage 264V   

 

 

**)  Tested voltage 207V 

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