DUET II (serv.man3) - JBL Audio EMC - CB Certificate (repair manual). Page 64

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- Page 64 of 65 - 
 
 
 Report 
No. 
114383 
 
 
IEC 60950-1:2005 / EN 60950-1:2006 
Clause 
Requirement + Test 
Result - Remark 
Verdict
 
 
TRF No. IECEN60950_1C 
 
 
Component  
No. 
Fault 
Supply  
voltage 
 (V) 
Test time
Fuse # 
Fuse  
current  
(A) 
Observation 
U6 pin 2-8 
s-c 
264 
3H8min
F1 
(inside 
adapter)
0.961 
Unit operated normally, no 
hazards, no damaged. Max. 
measured temp. in  
PCB near U6= 116.3°C,  
Enclosure=40.7°C,  
ambient= 27°C 
U6 pin 8-9 
s-c 
264 
10min 
F1 
(inside 
adapter)
0.004 
Unit shutdown, no hazards. 
U6 pin 2-9 
s-c 
264 
7h3min
F1 
(inside 
adapter)
1.07 
Unit operated normally, no 
hazards, no damaged. Max. 
measured temp. in  
PCB near U6= 117.7°C,  
Enclosure=39.8°C,  
ambient= 25.2°C 
C51 s-c 
264 
4.0h 
F1 
(inside 
adapter)
1.13 
Unit operated normally, no 
hazards, no damaged. Max. 
measured temp. in  
PCB near U6= 116.5°C,  
Enclosure=42.3°C,  
ambient= 28.8°C 
C20 s-c 
264 
10min 
F1 
(inside 
adapter)
0.037-0.087 Unit oscillate, no hazards. 
U6 pin 1-9 
s-c 
264 
2h40min
F1 
(inside 
adapter)
0.968 
Unit operated normally, no 
hazards, no damaged. Max. 
measured temp. in  
PCB near U6= 109.9°C,  
Enclosure=41.7°C,  
ambient= 26.3°C 
Speaker 
output  
s-c 264 
8h5min
F1 
(inside 
adapter)
0.273 
Unit operated normally,  
no hazards, no damaged. Max. 
measured temp. in  
PCB= 120.3°C,  
Enclosure=42.8°C,   
ambient= 26.8°C
 
supplementary information: 
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