LC-15PX1U
2
CAUTION: FOR CONTINUED
PROTECTION AGAINST A RISK OF
FIRE REPLACE ONLY WITH SAME
TYPE F3701 (2.5A, 250V), F3702
(2.5A, 250V), F6501(1.25A, 250V)
AND F6502 (1.25A, 250V) FUSE.
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SAFETY NOTICE
Many electrical and mechanical parts in LCD television
have special safety-related characteristics.
These characteristics are often not evident from visual
inspection, nor can protection afforded by them be
necessarily increased by using replacement components
rated for higher voltage, wattage, etc.
Replacement parts which have these special safety
characteristics are identified in this manual; electrical
components having such features are identified by "
å
"
IMPORTANT SERVICE SAFETY PRECAUTION
Ë
Service work should be performed only by qualified service technicians who are thor-
oughly familiar with all safety checks and the servicing guidelines which follow:
and shaded areas in the
Replacement Parts Lists
and
Schematic Diagrams
.
For continued protection, replacement parts must be
identical to those used in the original circuit.
The use of a substitute replacement parts which do not
have the same safety characteristics as the factory
recommended replacement parts shown in this service
manual, may create shock, fire or other hazards.
WARNING
1. For continued safety, no modification of any circuit
should be attempted.
2. Disconnect AC power before servicing.
BEFORE RETURNING THE RECEIVER
(Fire & Shock Hazard)
Before returning the receiver to the user, perform
the following safety checks:
1. Inspect all lead dress to make certain that leads are
not pinched, and check that hardware is not lodged
between the chassis and other metal parts in the
receiver.
2. Inspect all protective devices such as non-metallic
control knobs, insulation materials, cabinet backs,
adjustment and compartment covers or shields, isolation
resistor-capacitor networks, mechanical insulators, etc.
3. To be sure that no shock hazard exists, check for
leakage current in the following manner.
•
Plug the AC cord directly into a 110~240 volt AC outlet,
and connect the DC power cable into the receiver's DC
jack. (Do not use an isolation transformer for this test).
•
Using two clip leads, connect a 1.5k ohm, 10 watt
resistor paralleled by a 0.15µF capacitor in series with
all exposed metal cabinet parts and a known earth
ground, such as electrical conduit or electrical ground
connected to an earth ground.
•
Use an AC voltmeter having with 5000 ohm per volt, or
higher, sensitivity or measure the AC voltage drop
across the resistor.
•
Connect the resistor connection to all exposed metal
parts having a return to the chassis (antenna, metal
cabinet, screw heads, knobs and control shafts,
escutcheon, etc.) and measure the AC voltage drop
across the resistor.
All checks must be repeated with the AC cord plug
connection reversed. (If necessary, a nonpolarized
adaptor plug must be used only for the purpose of
completing these checks.)
Any reading of 0.75V peak (this corresponds to 0.5 mA.
peak AC.) or more is excessive and indicates a potential
shock hazard which must be corrected before returning
the monitor to the owner.
A V
DVM
AC SCALE
1.5k ohm
10W
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
0.15
µ
F
TEST PROBE
Summary of Contents for LC-15PX1U
Page 27: ...LC 15PX1U 27 17 16 19 18 15 14 13 12 11 10 INVERTER Unit OPERATION Unit ANALOG Unit ...
Page 30: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 30 OVERALL WIRING DIAGRAM ...
Page 31: ...LC 15PX1U 31 17 16 19 18 15 14 13 12 11 10 ...
Page 33: ...33 6 5 4 3 2 1 A B C D E F G H LC 15PX1U SCHEMATIC DIAGRAM Ë OPERATION Unit ...
Page 34: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 34 ËMAIN Unit 1 14 ...
Page 35: ...LC 15PX1U 35 17 16 19 18 15 14 13 12 11 10 ...
Page 36: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 36 ËMAIN Unit 2 14 ...
Page 37: ...LC 15PX1U 37 17 16 19 18 15 14 13 12 11 10 ...
Page 38: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 38 ËMAIN Unit 3 14 ...
Page 39: ...LC 15PX1U 39 17 16 19 18 15 14 13 12 11 10 ...
Page 40: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 40 ËMAIN Unit 4 14 ...
Page 41: ...LC 15PX1U 41 17 16 19 18 15 14 13 12 11 10 ...
Page 42: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 42 ËMAIN Unit 5 14 ...
Page 43: ...LC 15PX1U 43 17 16 19 18 15 14 13 12 11 10 ...
Page 44: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 44 ËMAIN Unit 6 14 ...
Page 45: ...LC 15PX1U 45 17 16 19 18 15 14 13 12 11 10 ...
Page 46: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 46 ËMAIN Unit 7 14 ...
Page 47: ...LC 15PX1U 47 17 16 19 18 15 14 13 12 11 10 ...
Page 48: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 48 ËMAIN Unit 8 14 ...
Page 49: ...LC 15PX1U 49 17 16 19 18 15 14 13 12 11 10 ...
Page 50: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 50 ËMAIN Unit 9 14 ...
Page 51: ...LC 15PX1U 51 17 16 19 18 15 14 13 12 11 10 ...
Page 52: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 52 ËMAIN Unit 10 14 ...
Page 53: ...LC 15PX1U 53 17 16 19 18 15 14 13 12 11 10 ...
Page 54: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 54 ËMAIN Unit 11 14 ...
Page 55: ...LC 15PX1U 55 17 16 19 18 15 14 13 12 11 10 ...
Page 56: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 56 ËMAIN Unit 12 14 ...
Page 57: ...LC 15PX1U 57 17 16 19 18 15 14 13 12 11 10 ...
Page 58: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 58 ËMAIN Unit 13 14 ...
Page 59: ...LC 15PX1U 59 17 16 19 18 15 14 13 12 11 10 ...
Page 60: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 60 ËMAIN Unit 14 14 ...
Page 61: ...LC 15PX1U 61 17 16 19 18 15 14 13 12 11 10 ...
Page 62: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 62 ËANALOG Unit 1 4 ...
Page 63: ...LC 15PX1U 63 17 16 19 18 15 14 13 12 11 10 ...
Page 64: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 64 ËANALOG Unit 2 4 ...
Page 65: ...LC 15PX1U 65 17 16 19 18 15 14 13 12 11 10 ...
Page 66: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 66 ËANALOG Unit 3 4 ...
Page 67: ...LC 15PX1U 67 17 16 19 18 15 14 13 12 11 10 ...
Page 68: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 68 ËANALOG Unit 4 4 ...
Page 69: ...LC 15PX1U 69 17 16 19 18 15 14 13 12 11 10 ...
Page 70: ...70 6 5 4 3 2 1 A B C D E F G H LC 15PX1U ËR C LED Unit ...
Page 71: ...71 6 5 4 3 2 1 A B C D E F G H LC 15PX1U ËCARD LED Unit ...
Page 72: ...72 6 5 4 3 2 1 A B C D E F G H LC 15PX1U ËCARD DETECT Unit ...
Page 73: ...73 6 5 4 3 2 1 A B C D E F G H LC 15PX1U ËINVERTER Unit ...
Page 78: ...LC 15PX1U 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 78 ANALOG Unit Side A ...
Page 79: ...LC 15PX1U 79 17 16 19 18 15 14 13 12 11 10 ...
Page 82: ...82 6 5 4 3 2 1 A B C D E F G H LC 15PX1U INVERTER Unit Side A ...