1-3-2
DVD_SFNP
Fig. 1
Chassis or Secondary Conductor
Primary Circuit
d'
d
AC Voltmeter
(High Impedance)
Exposed Accessible Part
B
One side of
Power Cord Plug Prongs
Z
Fig. 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 their original
positions. Afterwards, do the following tests and con-
firm the specified values to verify compliance with
safety standards.
1. Clearance Distance
When replacing primary circuit components, confirm
specified clearance distance (d) and (d’) between sol-
dered terminals, and between terminals and surround-
ing metallic parts. (See Fig. 1)
Table 1 : Ratings for selected area
Note:
This table is unofficial and for reference only.
Be sure to confirm the precise values.
2. Leakage Current Test
Confirm the specified (or lower) leakage current
between B (earth ground, power cord plug prongs)
and externally exposed accessible parts (RF termi-
nals, antenna terminals, video and audio input and
output terminals, microphone jacks, earphone jacks,
etc.) is lower than or equal to the specified value in the
table below.
Measuring Method (Power ON) :
Insert load Z between B (earth ground, power cord
plug prongs) and exposed accessible parts. Use an
AC voltmeter to measure across the terminals of load
Z. See Fig. 2 and the following table.
AC Line Voltage
Clearance Distance (d), (d’)
220 to 240 V
≥
3 mm(d)
≥
6 mm(d’)
Table 2: Leakage current ratings for selected areas
Note:
This table is unofficial and for reference only. Be sure to confirm the precise values.
AC Line Voltage
Load Z
Leakage Current (i)
One side of power cord plug
prongs (B) to:
220 to 240 V
2k
Ω
RES.
Connected in
parallel
i
≤
0.7mA AC Peak
i
≤
2mA DC
RF or
Antenna terminals
50k
Ω
RES.
Connected in
parallel
i
≤
0.7mA AC Peak
i
≤
2mA DC
A/V Input, Output
Summary of Contents for DRVR-B778S
Page 17: ...1 6 5 E9G01DC Fig D10 20 Deck Pedestal 21 Front Bracket R S 19 S 19 S 19 S 19 S 20...
Page 56: ...1 13 3 E9G10SCM1 Main 1 9 Schematic Diagram VCR Section...
Page 58: ...1 13 5 E9G10SCM3 Main 3 9 Schematic Diagram VCR Section...
Page 59: ...1 13 6 E9G10SCM4 Main 4 9 Schematic Diagram VCR Section...
Page 60: ...1 13 7 E9G10SCM5 Main 5 9 Schematic Diagram VCR Section...
Page 61: ...1 13 8 E9G10SCM6 Main 6 9 Front Jack Schematic Diagram VCR Section...
Page 62: ...1 13 9 E9G10SCM7 Main 7 9 Schematic Diagram VCR Section...
Page 63: ...1 13 10 E9G10SCM8 Main 8 9 Schematic Diagram VCR Section...
Page 64: ...1 13 11 E9G10SCM9 Main 9 9 Schematic Diagram VCR Section...
Page 66: ...1 13 13 E9G10SCRJ Rear Jack Schematic Diagram VCR Section...
Page 67: ...1 13 14 E9G10SCAFV AFV Schematic Diagram VCR Section...
Page 87: ...1 18 2 E9G01PEX Packing X4 S2 S2 S3 S2 A14 S1 S5 S5 S2 X9 X3 S9 X2 X1 X31 X43 X22 X20 S10...
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