AVR 245 (serv.man3) - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 50

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Report No.  73226 
 
 
 
14.3.3 
Transformer/motor, constructional requirements 
P 
 
Transformer Insulation  Insulation 
Res.
Test Volt 
Clearances / Creepage distances 
Part No. 
Between 
M Ohms 
kV (60 sec.)
Measured 
Required 

KLT5W026ZE, or 
Pr - sec 
> 100 
3KV (rms) 
10,5 / 10,5mm 
4,0 / 5,6 mm 
CLT5W026ZE 
Pr - ic 
> 100 
3KV (rms) 
10,5 / 10,5mm 
4,0 / 5,0 mm 
 
 
 
 
 
 

KLT5J033YE, or 
Pr – sec 
> 100 
3KV (rms) 
7,5 / 7,5 mm 
4,0 / 5,0 mm 
CLT5J033YE 
Pr - ic 
> 100 
3KV (rms) 
6,5 / 6,5 mm 
4,0 / 5,0 mm 
- 
Components / construction  
(

KLT5W026ZE or CLT5W026ZE)
 
Windings on two separate bobbins. The  
bobbins are placed in an insulating housing with
two compartments, one above the other.  
Bobbin thickness: > 0,4mm. 
Max. Working voltage: 381Vp/269Vrms
 
P 
 
Components / construction 
(

KLT5J033YE or CLT5J033YE)
 
Windings on single bobbin. The center flange  
provided between primary and secondary  
windings. Satisfactory constructed.  
Bobbin thickness: > 0,4mm. 
Max. Working voltage: 344Vp/243Vrms 
P 
Transformer Insulation 
Thick 
(mm) 
Material 
Dielectric strength test 
Part No. 
Between 
X Number 
 
60 sec. 

KLT5W026ZE, or  Pr - sec 
0,75 mm min. x 1
PET bobbin 
1 layer tested – Pass  *) 
CLT5W026ZE 
Pr - ic 
0,75 mm min. x 1
PET bobbin 
1 layer tested – Pass  *) 
 
 
 
 
 

KLT5J033YE, or 
CLT5J033YE 
Pr - sec 
0,50 mm min. x 2
0,50 mm min. x 1
PET bobbin wall 
PBT bobbin cap. 
1 layer tested – Pass  *) 
 
Pr - ic 
0,60 mm min. x 1
PET bobbin 
1 layer tested – Pass  *) 
 
Pr - ic 
0,50 mm min. x 1
PBT bobbin cap. 
1 layer tested – Pass  *) 
*) Test voltage: 3000 Vrms
 
 
 
17.1 
Torque test to Table 20: 
P 
 
Screw 
Diameter 
With 
Without
Material 
Torque test (Nm) 
Location / function 
(mm) 
Head 
Head 
Screw
Nut 
Fulfilled / Remarks 
Fixing of top cover 
(sides) 
4,0 x  - 
Metal
Metal
Tested with 1,2Nm,  
5 times / Pass 
Fixing of top cover 
(rear) 
3,0 x  - 
Metal
Metal
Tested with 0,5Nm,  
5 times / Pass 
 
 
 
 
 
 
 
 

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