36
LC-26GA4D
LC-26GA4U
TROUBLE SHOOTING TABLE
YES
YES
YES
NO
YES
NO
YES
YES
NO
YES
NO
NO
NO
NO
NO
<Power supply>
No power supply (Front LED is off) or no power-up (Front LED does not change from red to green)
Is power cable properly connected to the main unit?
Is BU+5V line (pin (16) of CN706, pin (8) of CN707 and pin
(4) of CN708) normal?
Is there any defective part or short-circuit in BU+5V line?
Check the 15V line power circuits (T701, T702, F704, Q706-14,
PC703-4, D708-17, IC702, L710, Q733-6, D735-6, D780 and
IC706).
Check each DC/DC converter and line (IC707-11 and IC716).
Replace if necessary.
Remove the defective part or short-circuit, and repeat the check.
Is the voltage (approx. 380V) available at C709/C710 when the
power is turned on?
Is the voltage available in 15V line immediately after the power is
turned on?
Is each DC/DC converter output (IC707-711 and IC716) normal?
Reconnect the wire harness, FFC, etc. in the set properly, and
repeat the check.
Check the 380V line power circuits (L703, IC701, Q701-5, D706
and TH 701).
Connect the power cable properly, and turn on the power.
Is F701 normal?
Replace F701, and turn on the power. If the fuse is still blown,
replace VA701, VA702, D701, D702, L703, Q701, Q702 and
IC701. Then repeat the check.
Check the BU+5V line power circuits (F703,
D722, IC703, T703, PC702, D761, and IC715).
Are the wire harness, FFC, etc. in the set connected properly?
•
Power switch: Top panel
(Main) Power (DC cutoff: Detected by microprocessor)
[Scheme of power supply system]
[(Main) Power OFF sequence]
1) (Main) Power OFF (DC switch)
2) (Main) Power shutoff is detected by the monitor microprocessor port.
3) Standby request (power cord) is sent to Seine from the microprocessor.
4) Seine shutdown process
5) Reception of shutdown permission from Seine
6) Monitor microcomputer turns off the relay to enter the standby mode.
(Main) Power
Seine
Main
Relay
Monitor microprocessor
Backup
Содержание LC-26GA4D
Страница 46: ...46 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U OVERALL WIRING DIAGRAM CHASSIS LAYOUT ...
Страница 47: ...47 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 48: ...48 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U SYSTEM BLOCK DIAGRAM ...
Страница 49: ...49 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 50: ...50 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U MAIN BLOCK DIAGRAM ...
Страница 51: ...51 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 52: ...52 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U CPU BLOCK DIAGRAM 1 2 ...
Страница 53: ...53 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 56: ...56 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U AV BLOCK DIAGRAM ...
Страница 57: ...57 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 58: ...58 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U POWER BLOCK DIAGRAM 1 2 ...
Страница 59: ...59 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 60: ...60 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U POWER BLOCK DIAGRAM 2 2 ...
Страница 61: ...61 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 63: ...63 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U SCHEMATIC DIAGRAM Ë R C LED Unit ...
Страница 64: ...64 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë DVI Unit 1 2 ...
Страница 65: ...65 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 66: ...66 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë DVI Unit 2 2 ...
Страница 67: ...67 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 68: ...68 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë LCD CONTROL Unit 1 8 ...
Страница 69: ...69 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 70: ...70 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë LCD CONTROL Unit 2 8 ...
Страница 71: ...71 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 72: ...72 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë LCD CONTROL Unit 3 8 ...
Страница 73: ...73 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 74: ...74 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë LCD CONTROL Unit 4 8 ...
Страница 75: ...75 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 76: ...76 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë LCD CONTROL Unit 5 8 ...
Страница 77: ...77 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 78: ...78 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë LCD CONTROL Unit 6 8 ...
Страница 79: ...79 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 80: ...80 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë LCD CONTROL Unit 7 8 ...
Страница 81: ...81 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 82: ...82 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë LCD CONTROL Unit 8 8 ...
Страница 83: ...83 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 84: ...84 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë CPU Unit 1 5 ...
Страница 85: ...85 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 86: ...86 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë CPU Unit 2 5 ...
Страница 87: ...87 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 88: ...88 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë CPU Unit 3 5 ...
Страница 89: ...89 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 90: ...90 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë CPU Unit 4 5 ...
Страница 91: ...91 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 92: ...92 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë CPU Unit 5 5 ...
Страница 93: ...93 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 94: ...94 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë PC CARD Unit 1 4 ...
Страница 95: ...95 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 96: ...96 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë PC CARD Unit 2 4 ...
Страница 97: ...97 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 98: ...98 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë PC CARD Unit 3 4 ...
Страница 99: ...99 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 100: ...100 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë PC CARD Unit 4 4 ...
Страница 101: ...101 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 102: ...102 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë MAIN Unit 1 13 ...
Страница 103: ...103 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 104: ...104 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë MAIN Unit 2 13 ...
Страница 105: ...105 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 106: ...106 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë MAIN Unit 3 13 ...
Страница 107: ...107 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 108: ...108 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë MAIN Unit 4 13 ...
Страница 109: ...109 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 110: ...110 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë MAIN Unit 5 13 ...
Страница 111: ...111 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 112: ...112 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë MAIN Unit 6 13 ...
Страница 113: ...113 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 114: ...114 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë MAIN Unit 7 13 ...
Страница 115: ...115 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 116: ...116 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë MAIN Unit 8 13 ...
Страница 117: ...117 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 118: ...118 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë MAIN Unit 9 13 ...
Страница 119: ...119 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 120: ...120 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë MAIN Unit 10 13 ...
Страница 121: ...121 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 122: ...122 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë MAIN Unit 11 13 ...
Страница 123: ...123 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 124: ...124 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë MAIN Unit 12 13 ...
Страница 125: ...125 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 126: ...126 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë MAIN Unit 13 13 ...
Страница 127: ...127 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 128: ...128 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë AV Unit 1 5 ...
Страница 129: ...129 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 130: ...130 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë AV Unit 2 5 ...
Страница 131: ...131 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 132: ...132 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë AV Unit 3 5 ...
Страница 133: ...133 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 134: ...134 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë AV Unit 4 5 ...
Страница 135: ...135 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 136: ...136 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë AV Unit 5 5 ...
Страница 137: ...137 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 138: ...138 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë KEY Unit ...
Страница 139: ...139 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë EXT SP Unit ...
Страница 140: ...140 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U Ë POWER Unit ...
Страница 141: ...141 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 146: ...146 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U DVI Unit Component Side PRINTED WIRING BOARD ASSEMBLIES ...
Страница 158: ...158 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U MAIN Unit Side A ...
Страница 159: ...159 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 162: ...162 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U MAIN Unit Side B ...
Страница 163: ...163 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 166: ...166 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U AV Unit Side A ...
Страница 167: ...167 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 170: ...170 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U AV Unit Side B ...
Страница 171: ...171 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 176: ...176 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U POWER Unit Side A ...
Страница 177: ...177 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 178: ...178 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 26GA4D LC 26GA4U POWER Unit Side B ...
Страница 179: ...179 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...
Страница 181: ...181 17 16 19 18 15 14 13 12 11 10 LC 26GA4D LC 26GA4U ...