I N F O R M AT I O N
• 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
compliance with safety standards.
1. Insulation resistance test
1.
Confirm the specified insulation resistance or greater between power cord plug prongs and externally exposed parts of
the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks,
etc.). See table below.
2. Dielectric strength test
1.
Confirm specified dielectric strength or greater between power cord plug prongs and exposed accessible parts of the set
1.
(RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.).
See table below.
3. Clearance distance
1.
When replacing primary circuit components, confirm specified
1. 1.
clearance distance (d), (d') between soldered terminals, and
between terminals and surrounding metallic parts. See table below.
Table 1: Rating for selected areas
*Class
II
model only.
Note: This table is unofficial and for reference only. Be sure to confirm the precise values for your particular
country and locality.
4. Leakage current test
1.
Confirm specified or lower leakage current between B (earth ground, power cord plug prongs) and externally exposed
1.
1.
accessible
.
parts (RF terminals, antenna terminals, video and audio
input and output terminals, microphone jacks, earphone jacks etc.)
1.
Measuring Method: (Power ON)
1.
Insert load Z between B (earth ground, power cord plug prongs)
and exposed accessible parts. Use and AC voltmeter to measure
across both terminals of load Z.
1.
See figure and following table.
Table 2: Leakage current ratings for selected areas
Note : This table unofficial and for reference only. Be sure to confirm the precise values for your particular
country and locality.
AC Line Voltage
100V
110 to 130V
*110 to 130V
200 to 240V
Region
Japan
USA & Canada
Europe
Australia
Insulation Resistance
≥
1M
Ω
/500V DC
_
≥
4M
Ω
/500V DC
Dielectric Strength
1kV AC 1 minute
900V AC 1 minute
3kV AC 1 minute
Clearance Distance (d), (d’)
≥
3 mm
≥
3.2 mm
≥
3mm (d)
≥
6mm (d’)
(a : Power cord)
Chassis
d
d
'
a
Primary circuit terminals
Fig.1
Fig.2
Exposed
accessible
part
Earth Ground
power cord plug prongs
AC voltmeter
(high impedance)
Z
B
AC Line Voltage
100V
110 to 130V
110 to 130V
200 to 240V
Region
Japan
USA & Canada
Europe
Australia
Load Z
Leakage Current (i)
i
≤
1mA rms
i
≤
0.5mA rms
i
≤
0.7mA peak
i
≤
2mA dc
i
≤
0.7mA peak
i
≤
2mA dc
Earth Ground (B) to:
Exposed accessible parts
Exposed accessible parts
Antenna earth terminals
Other terminals
1.5k
µ
F
1.5K
Ω
1K
Ω
2K
Ω
50K
Ω
Содержание DV-K82 series
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