Sylvania SRT2232S Service Manual page 7

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 posi-
tions. Afterwards, perform the following tests and con-
firm the specified values in order 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
AC Line Voltage
110 to 130 V
CANADA
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 be-
tween B (earth ground, power cord plug prongs) and
externally exposed accessible parts (RF terminals,
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 both terminals of
load Z. See Fig. 2 and following table.
Table 2 : Leakage current ratings for selected areas
AC Line Voltage
110 to 130 V
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
Clearance
Region
Distance (d) (d')
≥ 3.2 mm
USA or
(0.126 inches)
Region
0.15µF CAP. & 1.5kΩ
USA RES. connected in
Z
1.5kΩ
Load Z Leakage Current (i)
parallel
2-4
Chassis or Secondary Conductor
Primary Circuit Terminals
d' d
Exposed Accessible Part
0.15µF
Earth Ground
B
Power Cord Plug Prongs
Earth Ground (B) to:
Exposed accessible
i≤0.5mA rms
Fig. 1
AC Voltmeter
(High Impedance)
Fig. 2
parts
L6115IMP