SPARK (serv.man7) - JBL Audio EMC - CB Certificate (repair manual). Page 23

Report No.:  EM201300221-2                Application No.:  ZJ00028648                       Page 23 of 48 

 

 

The performance criteria are:  
•  

Performance criteria A for immunity tests with phenomena of a continuous nature;  

•  

Performance criteria B for immunity tests with phenomena of a transient nature;  

•  

Performance criteria C for immunity tests with power interruptions exceeding a certain time.  

The equipment shall meet the minimum performance criteria as specified in the following 
clauses. 

A 

Shall operate as intended.  
May show degradation of performance 
(see note 1).  
Shall be no loss of function.  
Shall be no unintentional transmissions.

Shall operate as intended.  
Shall be no degradation of performance (see 
note 2).  
Shall be no loss of function.  
Shall be no loss of stored data or user 
programmable functions. 

B 

May show loss of function (one or more).
May show degradation of performance 
(see note 1).  
No unintentional transmissions. 

Functions shall be self-recoverable.  
Shall operate as intended after recovering.  
Shall be no degradation of performance (see 
note 2).  
Shall be no loss of stored data or user 
programmable functions. 

C 

May be loss of function (one or more). 

Functions shall be recoverable by the operator. 
Shall operate as intended after recovering.  
Shall be no degradation of performance (see 
note 2). 

NOTE 1: Degradation of performance during the test is understood as degradation to a level not below a minimum 

performance level specified by the manufacturer for the use of the apparatus as intended. In some cases 
the specified minimum performance level may be replaced by a permissible degradation of performance.  

If the minimum performance level or the permissible performance degradation is not specified by the 
manufacturer then either of these may be derived from the product description and documentation 
(including leaflets and advertising) and what the user may reasonably expect from the apparatus if used 
as intended.  

NOTE 2: No degradation of performance after the test is understood as any degradation below a minimum 

performance level specified by the manufacturer for the use of the apparatus as intended. In some cases 
the specified minimum performance level may be replaced by a permissible degradation of performance. 
After the test no change of actual operating data or user retrievable data is allowed.   

If the minimum performance level or the permissible performance degradation is not specified by the 
manufacturer then either of these may be derived from the product description and documentation 
(including leaflets and advertising) and what the user may reasonably expect from the apparatus if used 
as intended.