TC-L32C22
3
1 Safety Precautions
1.1.
General Guidelines
1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
4. When conducting repairs and servicing, do not attempt to modify the equipment, its parts or its materials.
5. When wiring units (with cables, flexible cables or lead wires) are supplied as repair parts and only one wire or some of the
wires have been broken or disconnected, do not attempt to repair or re-wire the units. Replace the entire wiring unit instead.
6. When conducting repairs and servicing, do not twist the Faston connectors but plug them straight in or unplug them straight
out.
1.1.1.
Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the
two prongs on the plug.
2. Measure the resistance value, with an ohmmeter,
between the jumpered AC plug and each exposed
metallic cabinet part on the equipment such as
screwheads, connectors, control shafts, etc. When the
exposed metallic part has a return path to the chassis, the
reading should be 100 Mohm and over.
When the exposed metal does not have a return path to
the chassis, the reading must be
.
1.1.2.
Leakage Current Hot Check (See
Figure 1.)
1. Plug the AC cord directly into the AC outlet. Do not use
an isolation transformer for this check.
2. Connect a 1.5kohm, 10 watts resistor, in parallel with a
0.15
μ
F capacitors, between each exposed metallic part
on the set and a good earth ground such as a water pipe,
as shown in Figure 1.
3. Use an AC voltmeter, with 1000 ohms/volt 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 volts
RMS. A leakage current tester (Simpson Model 229 or
equivalent) may be used to make the hot checks, leakage
current must not exceed 1/2 milliamp. In case a
measurement is outside of the limits specified, there is a
possibility of a shock hazard, and the equipment should
be repaired and rechecked before it is returned to the
customer.
Figure 1
Summary of Contents for TC-L32C22 Quick Setup Guide (English
Page 13: ...TC L32C22 13 7 Disassembly and Assembly Instructions 7 1 AC Cord TREATMENT AC CORD ...
Page 18: ...TC L32C22 18 7 6 Side AV Bracket Assembly Stick the SIDE AV INDI SHEET on the SIDE AV BRACKET ...
Page 19: ...TC L32C22 19 7 7 Side AV Assembly Installation ...
Page 20: ...TC L32C22 20 7 8 LCD Panel Installation Put LCD PANEL on the CABINET ...
Page 29: ...TC L32C22 29 7 17 Pedestal 1 Put BASE PLATE to PEDESTAL COVER with screws ...
Page 30: ...TC L32C22 30 7 18 Pedestal 2 Put STAND MTG to STAND MTG SPACER with screws ...
Page 38: ...TC L32C22 38 11 Schematic Diagram 11 1 Schematic Diagram Notes ...
Page 39: ...TC L32C22 39 11 2 A Board 1 11 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 40: ...TC L32C22 40 11 3 A Board 2 11 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 41: ...TC L32C22 41 11 4 A Board 3 11 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 42: ...TC L32C22 42 11 5 A Board 4 11 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 43: ...TC L32C22 43 11 6 A Board 5 11 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 44: ...TC L32C22 44 11 7 A Board 6 11 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 45: ...TC L32C22 45 11 8 A Board 7 11 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 46: ...TC L32C22 46 11 9 A Board 8 11 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 47: ...TC L32C22 47 11 10 A Board 9 11 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 48: ...TC L32C22 48 11 11 A Board 10 11 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 49: ...TC L32C22 49 11 12 A Board 11 11 Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 50: ...TC L32C22 50 11 13 K Board Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 51: ...TC L32C22 51 11 14 P Board Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 52: ...TC L32C22 52 11 15 V Board Schematic Diagram 6 5 4 3 2 1 A B C D E F G H I ...
Page 73: ...Model No TC L32C22 Parts Location ...