Belkin DLA-HD2KE, DLA-HD2KU service manual Safety Check after Servicing, AC Line Voltage Region

1.1.2 Safety Check after Servicing

Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compli- ance with safety standards.

(1)Insulation resistance test

Confirm the specified insulation resistance or greater be- tween power cord plug prongs and externally exposed parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, ear- phone jacks, etc.).See table 1 below.

(2)Dielectric strength test

Confirm specified dielectric strength or greater between power cord plug prongs and exposed accessible parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.). See Fig.1-1-11 below.

(3)Clearance distance

When replacing primary circuit components, confirm spec- ified clearance distance (d), (d') between soldered termi- nals, and between terminals and surrounding metallic parts. See Fig.1-1-11 below.

d

d' Chassis

Power cord primary wire

Fig.1-1-8

(4)Leakage current test

Confirm specified or lower leakage current between earth ground/power cord plug prongs and externally exposed ac- cessible parts (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, ear- phone jacks, etc.).

Measuring Method : (Power ON)Insert load Z between earth ground/power cord plug prongs and externally ex- posed accessible parts. Use an AC voltmeter to measure across both terminals of load Z. See Fig.1-1-9 and follow- ing Fig.1-1-12.

		a	b
Externally	Z	A	c
exposed	V
accessible part

Fig.1-1-9

(5)Grounding (Class 1 model only)

Confirm specified or lower grounding impedance between earth pin in AC inlet and externally exposed accessible parts (Video in, Video out, Audio in, Audio out or Fixing screw etc.).Measuring Method:

Connect milli ohm meter between earth pin in AC inlet and exposed accessible parts. See Fig.1-1-10 and grounding specifications.

AC inlet Exposed accessible part

Earth pin

MIlli ohm meter

Grounding Specifications
Region	Grounding Impedance (Z)
USA & Canada	Z	0.1 ohm
Europe & Australia	Z	0.5 ohm

Fig.1-1-10

AC Line Voltage

Region

( )

Dielectric Strength

Clearance Distance (d), (d')

Insulation Resistance R

100 V

Japan

R

1 M /500 V DC

AC 1 kV 1 minute

d, d'

3 mm

100 to 240 V

AC 1.5 kV 1 minute

d, d'

4 mm

110 to 130 V

USA & Canada

1 M

R

12 M /500 V DC

AC 1 kV 1 minute

d, d'

3.2 mm

110 to 130 V

AC 3 kV 1 minute

d

4 mm

Europe & Australia

R

10 M /500 V DC

(Class

)

d'

8 mm (Power cord)

200 to 240 V

AC 1.5 kV 1 minute

d'

6 mm (Primary wire)

(Class

)

Fig.1-1-11

AC Line Voltage

Region

Load Z

Leakage Current (i)

a, b, c

100 V

Japan

1

i

1 mA rms

Exposed accessible parts

110 to 130 V

USA & Canada

0.15

i

0.5 mA rms

Exposed accessible parts

1.5

110 to 130 V

i

0.7 mA peak

Antenna earth terminals

Europe & Australia

2

i

2 mA dc

220 to 240 V

i

0.7 mA peak

Other terminals

50

i

2 mA dc

Fig.1-1-12

NOTE :

These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.

1-4 (No.PA019)