LC-26P50E
LC-32P50E
LC-37P50E
45
TROUBLE SHOOTING TABLE
(Continued)
NO
The backlight does not light.
Do all fluorescent lamps fail to light?
Check the fluorescent lamps that do not
light.
YES
Replace the fluorescent lamps that do not
light.
Replace the blown fuse(F703) or R1765
and turn on the power. If the backlight still
fails to light, check the area that has
shorted out.
YES
YES
Mainly check T7501, T7502 and their
peripheral circuits as well as Z7501and its
peripherals.
In POWER UNIT:
Check the fuse of the circuit for
INVERTER-UNIT.
Has the F703 2.0A in the POWER-UNIT
blown? Is the value for R1765 1½ correct?
YES
In the POWER-UNIT: Is approximately 380
VDC output to CN702? Check that the
RC701operates properly.
YES
NO
Check the connections of INV-PN7501and
POWER-CN702.
In the INVERTER-UNIT: Is the power
supplied between pins 1and 2 of
CONNECTOR-PN7501? (Pins 1 and 2 on
the measuring point PN7501; 380 VDC)
NO
Is each control signal sent to
CONNECTOR-CN1704 and CN1703 in
the POWER UNIT? (VCC 2(14V), OFL1,
INVáOSC)
NO
NO
Check the OFL1and INVáOSC-LINE of
CONNECTOR-P4101 in the MAIN-UNIT
and UR14V-LINE in the POWER-UNIT.
In the INVERTER-UNIT: Is each control
signal sent to PN7503? (VCC 2(14V)_
1Pin , OFL1_6Pin, INV-OSC_3Pin
RETURN_2Pin)
YES
YES
Replace the Z2501(INV-CTL)(STR-
H2013).
NO
In the INVERTER-UNIT: Is the control
signal of Z2501(INV-CTL)(STR-H2013)
output correctly? (PDRV1/V2(22)(20)Pin)
Check the photocoupler (PC 7501-22) and
the output transformer (T7503-25). Also
check the lamp connector connection.
YES
Содержание AQUOS LC-26P50E
Страница 29: ...LC 26P50E LC 32P50E LC 37P50E 31 10 6 List of adjustment process modes Display Examples LC 32P50E ...
Страница 49: ...LC 26P50E LC 32P50E LC 37P50E 51 M E M O ...
Страница 63: ...76 6 5 4 3 2 1 A B C D E F G H LC 26P50E LC 32P50E LC 37P50E Side A Ë POWER Unit ...
Страница 64: ...77 6 5 4 3 2 1 A B C D E F G H LC 26P50E LC 32P50E LC 37P50E Ë POWER Unit Side B ...
Страница 111: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËAV Unit 1 4 D3 D4 ...
Страница 112: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËAV Unit 2 4 D5 D6 ...
Страница 113: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËAV Unit 3 4 D7 D8 ...
Страница 114: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËAV Unit 4 4 D9 D10 ...
Страница 115: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËMAIN Unit 1 8 LC 26P50E D13 D14 ...
Страница 116: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËMAIN Unit 1 8 LC 32P50E D15 D16 ...
Страница 117: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËMAIN Unit 1 8 LC 37P50E D17 D18 ...
Страница 118: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËMAIN Unit 2 8 D19 D20 ...
Страница 119: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËMAIN Unit 3 8 D21 D22 ...
Страница 120: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËMAIN Unit 4 8 D23 D24 ...
Страница 121: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËMAIN Unit 5 8 D25 D26 ...
Страница 122: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËMAIN Unit 6 8 D27 D28 ...
Страница 123: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËMAIN Unit 7 8 D29 D30 ...
Страница 124: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËMAIN Unit 8 8 D31 D32 ...
Страница 125: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËKEY Unit D11 D12 ...
Страница 126: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËPOWER Unit RDENCA122WJZZ D33 D34 ...
Страница 127: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËINVERTER Unit LC 26P50E D35 D36 ...
Страница 128: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËINVERTER Unit LC 32P50E D37 D38 ...
Страница 129: ...8 7 1 10 9 6 5 4 3 2 1 A B C D E F G H 11 13 12 15 14 17 16 19 18 21 20 ËINVERTER Unit LC 37P50E D39 D40 ...
Страница 130: ...6 5 4 3 2 1 A B C D E F G H ËR C LED Unit D41 ...