be between 1 M and 12 M . When the exposed metal does not
have a return path to the chassis, the reading must be infinity.
LEAKAGE CURRENT HOT CHECK
1. Plug the AC cord directly into the AC outlet.
Do not use a isolation transformer for this check.
2. Connect a 1.5 k , 10 W resistor, in parallel with a 0.15 F
capacitor, between each exposed metallic part on the set and a
good earth ground , as shown in Figure 1.
3. Use an AC voltmeter, with 1 k /V or more sensitivity, to measure
the potential across the resistor.
4. Check each exposed metallic part, and measure the voltage at
each point.
5. Reverse the AC plug in the AC outlet and repeat each of the above
measurements.
6. The potential at any point should not exceed 0.75 V RMS.
A leakage current tester (Simpson Model 229 equivalent) may be
used to make the hot checks. Leakage current must not exceed 1/2
mA. In case a measurement is outside of the limits specified, there
is a possibility of shock hazard, and the receiver should be
repaired and rechecked before it is returned to the customer.
Figure 1
2. X-RADIATION
WARNING :
1. The potential source of X-Radiation in TV sets is the High Voltage
section and the picture tube.
2. When using a picture tube test fixture for service, ensure that the
fixture is capable of handling 25.0 kV (Model: A, B, C, D, E, F, G) or
4
Summary of Contents for Quasar PVQ-1310
Page 25: ...Fig D5 25 ...
Page 29: ...6 2 2 Inner Parts Location Fig J1 1 29 ...
Page 30: ...6 2 3 EJECT Position Confirmation Fig J1 2 30 ...
Page 31: ...6 2 4 Grounding Plate Unit Full Erase Head and Cylinder Unit Fig J2 1 31 ...
Page 44: ...6 3 CASSETTE UP ASS Y SECTION 6 3 1 Top Plate Wiper Arm Unit and Holder Unit Fig K1 1 44 ...
Page 82: ...82 ...
Page 86: ...11 2 MECHANISM BOTTOM SECTION 86 ...
Page 87: ...11 3 CASSETTE UP COMPARTMENT SECTION 87 ...
Page 88: ...11 4 CHASSIS FRAME SECTION 1 A B C D E F G 88 ...
Page 89: ...11 5 CHASSIS FRAME SECTION 1 H I J K L 89 ...
Page 90: ...11 6 CHASSIS FRAME SECTION 2 90 ...
Page 91: ...11 7 PACKING PARTS AND ACCESSORIES SECTION A B C D E F G 91 ...
Page 92: ...11 8 PACKING PARTS AND ACCESSORIES SECTION H I J K L 92 ...
Page 113: ...R4021 ERJ6GEYJ473V MGF CHIP 1 10W 47K 113 ...
Page 115: ...R5515 ERDS2TJ332 3 3K 115 ...
Page 135: ...R885 ERDS2TJ104 100K 135 ...