54
LC-30HV4M
LC-30HV4H
Power cannot be turned on. (The power LED on the front panel does not light up).
Is the power cable connected properly?
Is fuse (F701) in order?
Is the BU+5V line (pin (1) of P1703) in order?
Are the wire harness and FFC connected properly?
Are DC/DC converter outputs and MOS-FET (Q1707 and
Q1708) in order?
Replace IC1703.
Does the voltage of the OVP line (pin (8) of P1702) fluctuate
after power-on?
Plug the power cable connector and retry to turn on the
power.
Replace the fuse and retry to turn on the power. If the fuse burns,
check VA701, D701 and IC701 and replace if necessary.
Check the BU+5V line for correct impedance. (Measure the
resistance between Pin 1 and GND).
Check connections of the wire harness and FFC and
reconnect if necessary.
Check power supply internal devices (IC701, IC721, PC702,
Q702, D708 and D705).
Check DC/DC converter output lines and MOS-FET (Q1707
and Q1708) and replace if necessary.
The power does not turn on even through the power button is pressed. (The red power LED on the front panel does not turn green or
is blinking red).
Remove the cause of fault or
short-circuit.
Check IC1702 and its
peripheral circuits.
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
Is the system cable connected properly between the Display
and the AVC System (DISPLAY OUTPUT1 and DISPLAY
OUTPUT2)?
Reconnect and retry to turn on the power.
Are the power switches of the Display and AVC System on?
Turn on the power switches of the Display and AVC System.
Are the UR+6V, UR+10V and UR+13V lines (pins (1), (2), (7)
and (9) of P1702) in order?
Are the D+1.8VCV line (pins (5) and (6) of P1701), D+3.3V
line (pin (8) of P1701), D+5V line (pin (1) of P1701) and
A+5V line (pin (3) of P1701) in order?
Check the wire harness and FFC for proper connection.
Is PS_ON (pin (3) of P1702) pulled high (3.5V)?
Is D_POW (pins (32) and (34) of IC1703, pin (2) of IC1704
and pin (2) of IC1705) pulled high?
Is the impedance of the UR+6V, UR+10V and UR+13V lines
correct? (Measure the resistance between pins (1), (2), (7), (9)
of P1072) and GND).
Check the PS_ON line.
Check the UR+6V, UR+10V and
UR+13V lines and devices on the
lines.
Are MOS-FET (Q1707 and Q1708) and REG. IC (IC1704 and
IC1705) in order?
Check the D_POW line (pin (6) of
IC1503).
Check each output line and replace MOS-FET (Q1707 and
Q1708) and REG. IC (IC1704 and IC1705).
Replace IC1703.
TROUBLE SHOOTING TABLE
(AVC System)
Summary of Contents for Aquos LC-30HV4H
Page 11: ...11 LC 30HV4M LC 30HV4H DIMENSIONS 365 430 250 5 180 95 183 Unit mm AVC System ...
Page 29: ...29 LC 30HV4M LC 30HV4H Continued ...
Page 37: ...37 LC 30HV4M LC 30HV4H ËVHiMSP4458G 1Q ASSY IC2501 Multi Sound Processor Block diagram ...
Page 41: ...41 LC 30HV4M LC 30HV4H ËVHiMM1519XQ 1 IC1401 Component Input Video Switch Block diagram ...
Page 43: ...43 LC 30HV4M LC 30HV4H ËVHiTB1274AF 1Q ASSY IC801 IC802 VIDEO CHROMA Processor Block diagram ...
Page 64: ...64 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H CHASSIS LAYOUT AVC System ...
Page 65: ...65 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 66: ...66 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H CHASSIS LAYOUT Display ...
Page 67: ...67 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 68: ...68 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H SYSTEM BLOCK DIAGRAM AVC System ...
Page 69: ...69 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 71: ...71 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 73: ...73 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 75: ...75 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 81: ...81 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 83: ...83 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 84: ...84 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H OVERALL WIRING DIAGRAM Display ...
Page 85: ...85 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 87: ...87 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë SR Unit AVC System ...
Page 88: ...88 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë MAIN Unit 1 7 AVC System ...
Page 89: ...89 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 91: ...91 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 93: ...93 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 94: ...94 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë MAIN Unit 4 7 AVC System ...
Page 95: ...95 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 96: ...96 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë MAIN Unit 5 7 AVC System ...
Page 97: ...97 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 99: ...99 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 101: ...101 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 103: ...103 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 105: ...105 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 106: ...106 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë FRONT Unit AVC System ...
Page 107: ...107 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 108: ...108 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë AV Unit 1 5 AVC System ...
Page 109: ...109 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 111: ...111 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 113: ...113 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 114: ...114 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë AV Unit 3 5 AVC System ...
Page 115: ...115 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 117: ...117 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 119: ...119 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 135: ...135 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 137: ...137 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 139: ...139 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 141: ...141 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 143: ...143 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 144: ...144 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë MAIN Unit 1 3 Display ...
Page 145: ...145 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 146: ...146 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë MAIN Unit 2 3 Display ...
Page 147: ...147 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 148: ...148 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë MAIN Unit 3 3 Display ...
Page 149: ...149 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 150: ...150 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë AUDIO Unit 1 2 Display ...
Page 151: ...151 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 152: ...152 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë AUDIO Unit 2 2 Display ...
Page 153: ...153 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 154: ...6 5 4 3 2 1 A B C D E F G H 154 LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë INVERTER 1 Unit Display ...
Page 155: ...155 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë INVERTER 2 Unit Display ...
Page 157: ...157 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 158: ...6 5 4 3 2 1 A B C D E F G H 158 LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë OPERATION Unit Display ...
Page 159: ...159 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë R C LED Unit Display ...
Page 165: ...165 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 169: ...169 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 173: ...173 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 180: ...6 5 4 3 2 1 A B C D E F G H 180 LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë AVC System PC I F Unit Side A ...
Page 181: ...181 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë AVC System PC I F Unit Side B ...
Page 183: ...183 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 187: ...187 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 206: ...6 5 4 3 2 1 A B C D E F G H 206 LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë Display POWER Unit Side A ...