AVR 145 - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 45

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Report No.  77024 
 
 
 
 
11 
FAULT CONDITIONS TESTS-continued
 
Comp. 
No. 
Location  Fault 
Test V 
Test  
time 
Fuse 
No. 
Current 
through 
fuse 
Temperature/Results 
D112 
A - C 
S-c 
253 
20 min 
F901 
1,50A 
Normal operated. 
Input current stabilised at 1,48A. 
R114
 
opened.   
No hazard. 
C124 -  S-c 253 20 
min 
F901 
1,45A 
Normal operated. 
Input current stabilised at 1,45A. 
R114 and R115
 
opened.   
No hazard. 
D114 
A - C 
S-c 
253 
30 min 
F901 
1,52A 
Normal operated. 
Input current stabilised at 1,48A. 
R104
 
opened.   
No hazard. 
D105 
A - C 
S-c 
253 
20 min 
F901 
1,70A 
Normal operated. 
Input current stabilised at 1,48A. 
R107
 
opened.   
No hazard. 
D118 
A - C 
S-c 
253 
52 min 
F901 
1,72A 
Normal operated. 
Input current stabilised at 1,48A. 
R116
 
opened.   
No hazard. 
C128 -  S-c 253 38 
min 
F901 
1,80A 
Output signal off immediately. 
Input current stabilised at 0,46A. 
R116 and R117
 
opened.   
No hazard. 
C122 
S-c 
253 
20 min 
F901 
1,48A 
Normal operated. 
Input current stabilised at 1,48A. 
R101
 
opened.   
No hazard. 
C117 
S-c 
253 
30 min 
F901 
1,48A 
Normal operated. 
Input current stabilised at 1,48A. 
No component damaged. 
No hazard.   
Q657 
E - C 
S-c 
253 
10 min 
F901 
6,60A 
Unit shut down after 2 sec. 
Input current stabilised at 0,012A. 
Q661 and R656 damaged. 
No hazard. 
Q657 
B - C 
S-c 
253 
10 min 
F901 
1,80A 
Unit shut down immediately. 
Input current stabilised at 0,012A. 
No component damaged. 
No hazard. 
F No = Fault Number, S-c = Short-circuit, Dis = Disconnection 
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