25
TU-GA1U-S
TU-GAD
TROUBLE SHOOTING TABLE
No power supply (Front LED is not ON)
Is power cable properly connected to the main unit?
Is F701 normal?
Is F702 normal?
Reconnect the wire harness, FFC, etc. in the set, and repeat
the check.
Connect the power cable properly, and turn on the power.
Replace F701, and turn on the power. If the fuse is still
blown, replace VA701, D701, Q705 and Q706, and repeat
Replace F702, and turn on the power. If the fuse is still
blown, replace D701 and IC701, and repeat the check.
Remove the faulty part or short-circuit, and repeat the check.
Check IC902 and its peripheral
NO
NO
NO
Is there any faulty part or short-circuit in BU+5V line?
NO
NO
YES
YES
Is BU+5V line (pin (5) of P1701) normal?
YES
YES
YES
No power-up (Front LED does not change from red to green)
Are MDR (gray) and DVI (white) connectors of the system
cable properly connected to the Dispay and the AVC System?
Reconnect properly and turn on the power.
NO
Is the power switch of the monitor ON?
Set the power switch to ON, and turn on the power.
YES
NO
Is specified voltage available at S-Vcc+15V (pins (11) and
(12) of P1752), UR+10V (pin (5) of P1752) and CPU+10V
(pins (7) and (8) of P1781)?
Is specified voltage available at D+1.8VCV (pins (3) and (4)
of P1703), D+3.3V (pins (9) and (12) of P1701) and D+5V
(pin (1) of P1703)?
Reconnect the wire harness, FFC,
etc. in the set, and repeat the check.
Are PS_ON (pin (6) of P1701) and EU_D_POWER (pin (2) of
P1702) at "HI" (3V or higher)?
Are MOS-FET (Q1701, Q1702, Q1703, Q1704 and Q1705)
and IC952 normal?
Does OVP line voltage
fluctuate immediately after
the power is supplied?
Is specified impedance available in S-Vcc+15V, UR+10V and
CPU+10V lines? (Measure the resistance between each +B
line and GND.)
Check PS_ON or EU_D_POWER
Check the circuits in the faulty line.
Check D_POW line.
Is D_POW line normal? Are the pins
(46), (47) and (48) of IC1701 at "HI",
and the pin (5) of IC952 at "LOW"?
Replace faulty FET or IC.
YES
NO
NO
NO
YES
YES
YES
YES
NO
Replace IC1701.
YES
YES
NO
NO
NO
Summary of Contents for TU-GA1U-S
Page 41: ...41 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD CHASSIS LAYOUT FRONT AV SUB DVI TMDS ...
Page 42: ...42 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD CHASSIS LAYOUT PC CARD MAIN AV ...
Page 43: ...43 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD CPU AUDIO I F ...
Page 55: ...55 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD SCHEMATIC DIAGRAM Ë FRONT Unit ...
Page 56: ...56 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë AV SUB Unit 1 2 ...
Page 57: ...57 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 58: ...58 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë AV SUB Unit 2 2 ...
Page 59: ...59 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 60: ...60 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë TMDS Unit ...
Page 61: ...61 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 62: ...62 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë PC CARD Unit 1 4 ...
Page 63: ...63 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 64: ...64 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë PC CARD Unit 2 4 ...
Page 65: ...65 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 66: ...66 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë PC CARD Unit 3 4 ...
Page 67: ...67 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 68: ...68 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë PC CARD Unit 4 4 ...
Page 69: ...69 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 70: ...70 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë DVI Unit 1 2 ...
Page 71: ...71 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 72: ...72 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë DVI Unit 2 2 ...
Page 73: ...73 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 74: ...74 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë CPU Unit 1 5 ...
Page 75: ...75 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 76: ...76 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë CPU Unit 2 5 ...
Page 77: ...77 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 78: ...78 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë CPU Unit 3 5 ...
Page 79: ...79 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 80: ...80 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë CPU Unit 4 5 ...
Page 81: ...81 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 82: ...82 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë CPU Unit 5 5 ...
Page 83: ...83 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 84: ...84 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 1 13 ...
Page 85: ...85 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 86: ...86 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 2 13 ...
Page 87: ...87 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 88: ...88 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 3 13 ...
Page 89: ...89 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 90: ...90 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 4 13 ...
Page 91: ...91 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 92: ...92 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 5 13 ...
Page 93: ...93 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 94: ...94 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 6 13 ...
Page 95: ...95 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 96: ...96 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 7 13 ...
Page 97: ...97 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 98: ...98 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 8 13 ...
Page 99: ...99 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 100: ...100 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 9 13 ...
Page 101: ...101 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 102: ...102 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 10 13 ...
Page 103: ...103 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 104: ...104 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 11 13 ...
Page 105: ...105 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 106: ...106 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 12 13 ...
Page 107: ...107 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 108: ...108 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë MAIN Unit 13 13 ...
Page 109: ...109 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 110: ...110 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë AV Unit 1 3 ...
Page 111: ...111 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 112: ...112 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë AV Unit 2 3 ...
Page 113: ...113 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 114: ...114 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë AV Unit 3 3 ...
Page 115: ...115 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 116: ...116 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë POWER Unit TU GA1U S ...
Page 117: ...117 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 118: ...118 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë POWER Unit TU GAD ...
Page 119: ...119 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 120: ...120 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë DC DC CONVERTER Unit ...
Page 121: ...121 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 122: ...122 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD Ë AUDIO I F Unit ...
Page 132: ...132 8 7 10 9 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD AV Unit Side A ...
Page 133: ...133 17 16 19 18 15 14 13 12 11 10 TU GA1U S TU GAD ...
Page 144: ...144 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD DVI Unit Component Side ...
Page 146: ...146 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD TMDS Unit Component Side ...
Page 149: ...149 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD POWER Unit Side A ...
Page 150: ...150 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD DC DC CONVERTER Unit Side A ...
Page 151: ...151 6 5 4 3 2 1 A B C D E F G H TU GA1U S TU GAD DC DC CONVERTER Unit Side B ...