LC-46X8E/S/RU
4 – 1
LC46X8E
Service Manual
CHAPTER 4.
TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE
Power unit operation check.
Are the power cord and harness in the unit properly connected?
NO
Connect the power cord and harness properly, and turn on the
power.
LINE_FILTER_UNIT:
YES
Is F7000 normal?
NO
LINE_FILTER_UNIT:
Isn't FL7001, L7001, R7002, CX7000-1, Z7000, etc. out of order?
Moreover, whether the short-circuit with the circumference circuit
is checked.
POWER_UNIT:
BD7000, TH7000-1, IC7801,Z7800, etc. out of order?
Moreover, whether the short-circuit with the circumference circuit
is checked.
POWER_UNIT
YES
Is B_BUS (+320V) output? (Set the main power SW to OFF.)
* When power on/off switch is on
•
•
•
About +400V
NO
Does the PFC circuit operate normally?
(L7800, L7801, T7800, D7806, Q7804-5, IC7800-1 and etc. And,
the circuit around the protection circuit etc. is checked.)
YES
Is a voltage of BU5V applied to pin (8) of connector (PD)?
(Set the main power SW to OFF.)
NO
Does the switching circuit operate normally?
Check circuit around the primary side (T7901, IC7905, Q7902,
Q7912-3, D7908-9, D7904, D7910, etc.), the secondary side
(D7918, L7900, etc.), the AC_DET circuit (D7911-2, IC7909,
IC7902, Q7910, Q7901, etc.), and the protection circuit.
YES
Are INV60V, UR15, and S15V output as for the power on/off
switch when it is on?
NO
Does the inverter circuit operate normally?
Check circuit around the primary side (T7001, T7601, IC7603,
IC7601, IC7600, Q7600-2, D7608, D7610, D7613, etc.), the sec-
ondary side (D7560-3, L7560, D7150-1, L7150, L7152, Q7911,
etc.), the PS_ON circuit (Q7300-1, etc.), and the protection cir-
cuit.
YES
Similarly, is PNL12V output as for the power on/off switch when it
is on?
NO
Check PNL_POW circuit of Q7121-2, etc. and the circuit around
the regulator circuit etc. of IC7121, L7121, D7121, etc.
Содержание LC-46X8E/S/RU
Страница 16: ...LC 46X8E S RU 2 6 10 Remove the 14 lock screws and detach the Panel Support Angle 9 PNL SUPPORT ANG 9 ...
Страница 18: ...LC 46X8E S RU 2 8 12 Remove the 1 lock screw and detach the Bottom Cover 13 FRONT CABINET BOTTOM COVER 13 ...
Страница 65: ...LC 46X8E S RU 5 2 1 2 IC506 VHiMM3151XQ 1Q 1 2 1 Block Diagram ...
Страница 86: ...LC 46X8E S RU 5 23 1 8 IC8301 RH iXC154WJQZQ 1 8 1 Block Diagram ...
Страница 88: ...LC 46X8E S RU 5 25 1 9 IC9101 RH iXC121WJN8Q 1 9 1 Block Diagram ...
Страница 99: ...LC 46X8E S RU 7 3 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit Side B ...
Страница 103: ...LC 46X8E S RU 7 7 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 TERMINAL Unit Side B ...
Страница 106: ...LC 46X8E S RU 7 10 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MINI AV Unit Side B ...
Страница 108: ...LC 46X8E S RU 8 2 2 SCHEMATIC DIAGRAM 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 1 ...
Страница 109: ...LC 46X8E S RU 8 3 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 2 ...
Страница 110: ...LC 46X8E S RU 8 4 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 3 ...
Страница 111: ...LC 46X8E S RU 8 5 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 4 ...
Страница 112: ...LC 46X8E S RU 8 6 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 5 ...
Страница 113: ...LC 46X8E S RU 8 7 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 6 ...
Страница 114: ...LC 46X8E S RU 8 8 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 7 ...
Страница 115: ...LC 46X8E S RU 8 9 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 8 ...
Страница 116: ...LC 46X8E S RU 8 10 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 9 ...
Страница 117: ...LC 46X8E S RU 8 11 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 10 ...
Страница 118: ...LC 46X8E S RU 8 12 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 11 ...
Страница 119: ...LC 46X8E S RU 8 13 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 12 ...
Страница 120: ...LC 46X8E S RU 8 14 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 13 ...
Страница 121: ...LC 46X8E S RU 8 15 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 14 ...
Страница 122: ...LC 46X8E S RU 8 16 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MAIN Unit 15 ...
Страница 124: ...LC 46X8E S RU 8 18 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 TERMINAL Unit 2 ...
Страница 125: ...LC 46X8E S RU 8 19 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 TERMINAL Unit 3 ...
Страница 126: ...LC 46X8E S RU 8 20 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 TERMINAL Unit 4 ...
Страница 127: ...LC 46X8E S RU 8 21 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 TERMINAL Unit 5 ...
Страница 128: ...LC 46X8E S RU 8 22 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 R C LED Unit ...
Страница 129: ...LC 46X8E S RU 8 23 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 KEY Unit ...
Страница 130: ...LC 46X8E S RU 8 24 1 2 3 10 9 7 6 5 4 8 J A B C D E F G H I 13 11 19 18 16 15 14 12 17 MINI AV Unit ...
Страница 163: ...LC 46X8E S RU 33 11 PACKING PARTS S7 S4 S1 S3 S2 S6 S4 S4 S5 S9 S4 S8 ...
Страница 165: ...LC 46X8E S RU ...