AVR 171 (serv.man5) - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 12

Page 4 of 52 

Report No.: 232174

 

 

TRF No. IEC60065K 
 

List of Attachments (including a total number of pages in each attachment):  
 
Attachment 1: Schematic Diagram / PCB Layout - Major part only (3 pages) 
Attachment 2: Transformer Information (11 pages) 
Attachment 3: Photos (7 pages) 
Attachment 4: 

European group differences

 (16 pages)  

Attachment 5: National deviations for Singapore (5 pages)  
Attachment 6: National deviations for China (6 pages)  *) 
 
*) The last modified date indicates the last time the standard reference / attachment for this standard 
was modified. The last modified date is the information was imported into the online CB Bulletin from 
the previous version. 

 

Instructions 
(Clause 5.4) 

Instructions / users manual is in English and 
Chinese. The information shall also be given in a 
language acceptable to the country where the 
apparatus in intended to be sold. 

Input / Temperature rise measurements 
(Clause 7.1) 

The apparatus has two modes in supplying voltage 
from TF93 transformer for amplifier circuit.  The one 
is “HIGH mode” of 45 V, and the other is “LOW mode”
of 21.5 V, which is controlled by the IC1506 thermal 
sensor IC on HS93 heat-sink in power supply board. 
The apparatus is always be started from “HIGH mode” 
first, and then changed to “LOW mode” electrically by 
operation of the IC1506 thermal sensor IC when the 
temperature of the HS93 heat-sink is exceeding 75°C. 
The apparatus is equipped with two cooling fans on 
main heat-sink and back cover inside, and these two 
fans are also operated by an IC1506 thermal sensor IC. 
The fans are operated at slow speed mode and high 
speed mode when the temperature of the HS93 heat-
sink is reached 50°C and 65°C respectively. 
The IC1506 thermal sensor IC is UL approved comp. 
according to UL60730-1 and accepted this compo. in 
their position due to comparison with similar standard 
IEC60730-1 where there is no different requirements. 
However, please note that the certificate may be 
waived by other agency. 

Terminal and External flexible cords: 
(Clause 15 and 16) 

This test report does not cover the mains cord set 
except for listed type in list of critical components. 
Must be supplied with an approved cord set 
suitable for the countries where the requirement 
will be sold. 

Tests performed (name of test and test clause):
5   Marking and instructions 
7   Heating under normal operating conditions 
8   Constructional requirements with regard to the
 

protection against electric shock 

9   Electric shock hazard under normal operating 
 conditions 
10   Insulation requirements 
11   Fault conditions 

Testing location: 
Refer to page 3