DSC 1000 - JBL Audio EMC - CB Certificate (repair manual). Page 13

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Page 12 of 53 
  Report No: JSH0406745-001.  
IEC 60065 
Clause 
Requirement - Test 
Result - Remark 
Verdict 
 
14.3.1 
Transformers and inductors marked with 
manufacturer's name and type ........................... : 
Switching mode transformer  
TR1: BCK-ER2802S1 
TR2: BCK-EC4201A 
Inductor LF1: 203A 
Inductor LF2: UF1601 
 
Transformers and inductors separately approved  :  No 
14.3.2 
General 
 
14.3.3 
Constructional requirements 
 
14.3.3.1 
Clearances and creepage distances comply with 
clause 13 
Between primary winding and 
secondary winding in 
transformer TR1 & TR2: 
6.0mm. 
14.3.3.2 
Transformers meet the constructional 
requirements 
 
14.3.4.1 
Class II transformers have adequate separation 
between hazardous live parts and accessible parts 
(double or reinforced insulation) 
Reinforced insulation 
 
Coil formers and partition walls > 0,4 mm 
TR1, TR2 bobbin: 0.8mm 
14.3.4.2 
Class I transformers, with basic insulation and 
protective screening only if all 7 conditions of 
14.3.4.2 are met 
Class II construction 
14.3.4.3 
Separating transformers with at least basic 
insulation 
 
14.3.5.1 
Class II transformers have adequate insulation 
between hazardous live parts and accessible parts 
(double or reinforced insulation) 
Iron cores in TR1 and  TR2 are 
not connected to primary parts 
or accessible parts. 
 
Coil formers and partition walls > 0,4 mm 
 
14.3.5.2 
Class I transformers have adequate insulation 
between hazardous live parts and accessible 
conductive parts or those conductive parts or 
protective screens connected to a protective earth 
terminal 
Class II construction 
 
Winding wires connected to protective earth have 
adequate current-carrying capacity 
 
14.4 
High voltage components 
No such components 
 
High-voltage components and assemblies: 
U > 4 kV (peak) separately approved 
 
 
Component meets category V-1 of IEC 60707 
 
14.4.1 
High voltage transformers and multipliers tested as 
part of the submission 
 
14.4.2 
High voltage assemblies and other parts tested as 
part of the submission 
 
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