LC-32D41U/LC-32M41U/LC-40C32U
6 – 1
LC-32D41U/LC-32M41U/LC-40C32U
Service Manual
CHAPTER 6.
TROUBLE SHOOTING TABLE
[1] TROUBLE SHOOTING TABLE
<Power supply>
No power supply (Front LED does not light up) and no power-up even is turned on (Front LED light up to blue)
Is the AC cord connected?
NO
Connect the AC cord and turn on the power.
YES
Are the harness and FFC connected prop-
erly?
NO
Connect the harness and FFC properly.
YES
Are F701 normal?
NO
If the fuse is blown when turning on the power after replacing F701, replace VZ701,
DS4701, F4701/F4702, F5701, Q4701/Q4702, Q5701, IC4701 and IC5701, then
recheck.
YES
Is the voltage of C4701/C4702/C4703
approx. 160V?
NO
Check if VZ701, R701, R702, R703 and DS4701 are normal.
YES
Is BU5V supplied?
NO
Do the primary side and secondary side of T5701 oscillate normally?
YES
YES
NO
Are F5702, D5705, IC5706 and D5717 out of
order?
Are there defective parts on the pri-
mary side? Is the output on the sec-
ondary side short-circuited?
Are UR6V/UR10V/UR13V supplied?
NO
Does PS_ON (pin 1 of CN5702) become High (approx. 3.3V)?
YES
YES
NO
Check the regulator circuit of UR6V, rectifier
circuit of UR13V and DC/DC circuit of UR10V.
Is the unit set to STANDBY
MODE2? Is the main unit normal?
Is 24V supplied?
NO
Do the primary side and secondary side of T4701 oscillate normally?
YES
YES
NO
Are D4705/D4706 out of order?
Are there defective parts on the pri-
mary side? Is the output on the sec-
ondary side short-circuited?
Is PNL5V supplied?
NO
Does PNL_POW (pin 4 of CN5702) become High (approx. 3.3V)?
YES
Check the DC/DC circuit of PNL5V?
Is the main unit normal?
Turn on the power again, and check if the
unit works normally.
Remarks
State of the set
PS_ON
(CN5702 )
PNL_POW
(CN5702 )
BU5V
(CN5702 )
UR6V
(CN5701 )
UR10V
(CN5701 )
UR13V
(CN5701 )
PNL5V
(CN5701 )
24V
(CN5703 )
STDBY
MODE1
High
High
5V
6V
10V
13V
5V
24V
MODE2
Low
Low
5V
-
-
-
-
-
Power ON
High
High
5V
6V
10V
13V
5V
24V
1
4
5
1
7
11
3
1
Содержание Aquos LC32D41U
Страница 13: ...LC 32D41U LC 32M41U LC 40C32U 4 3 10 Disconnect all the connectors from all the PWBs ...
Страница 49: ...LC 32D41U LC 32M41U LC 40C32U 9 2 10 11 12 13 14 15 16 17 18 19 ...
Страница 52: ...LC 32D41U LC 32M41U LC 40C32U 9 5 LC 32D41U A C B D E F G H 1 2 3 4 5 6 7 8 9 10 MAIN Unit Side B LC 32D41U ...
Страница 53: ...LC 32D41U LC 32M41U LC 40C32U 9 6 10 11 12 13 14 15 16 17 18 19 ...
Страница 57: ...LC 32D41U LC 32M41U LC 40C32U 9 10 10 11 12 13 14 15 16 17 18 19 ...
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Страница 64: ...LC 32D41U LC 32M41U LC 40C32U 9 17 2 IF Unit A C B D E F G H 1 2 3 4 5 6 IF Unit Side A ...
Страница 68: ...LC 32D41U LC 32M41U LC 40C32U 10 2 2 MAIN Unit MAIN Unit 1 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Страница 69: ...LC 32D41U LC 32M41U LC 40C32U 10 3 10 11 12 13 14 15 16 17 18 19 ...
Страница 70: ...LC 32D41U LC 32M41U LC 40C32U 10 4 MAIN Unit 2 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Страница 71: ...LC 32D41U LC 32M41U LC 40C32U 10 5 10 11 12 13 14 15 16 17 18 19 ...
Страница 72: ...LC 32D41U LC 32M41U LC 40C32U 10 6 MAIN Unit 3 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Страница 73: ...LC 32D41U LC 32M41U LC 40C32U 10 7 10 11 12 13 14 15 16 17 18 19 ...
Страница 74: ...LC 32D41U LC 32M41U LC 40C32U 10 8 MAIN Unit 4 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
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Страница 78: ...LC 32D41U LC 32M41U LC 40C32U 10 12 MAIN Unit 6 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
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Страница 80: ...LC 32D41U LC 32M41U LC 40C32U 10 14 MAIN Unit 7 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
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Страница 82: ...LC 32D41U LC 32M41U LC 40C32U 10 16 MAIN Unit 8 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Страница 83: ...LC 32D41U LC 32M41U LC 40C32U 10 17 10 11 12 13 14 15 16 17 18 19 ...
Страница 84: ...LC 32D41U LC 32M41U LC 40C32U 10 18 MAIN Unit 9 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Страница 85: ...LC 32D41U LC 32M41U LC 40C32U 10 19 10 11 12 13 14 15 16 17 18 19 ...
Страница 86: ...LC 32D41U LC 32M41U LC 40C32U 10 20 MAIN Unit 10 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Страница 87: ...LC 32D41U LC 32M41U LC 40C32U 10 21 10 11 12 13 14 15 16 17 18 19 ...
Страница 88: ...LC 32D41U LC 32M41U LC 40C32U 10 22 MAIN Unit 11 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
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Страница 90: ...LC 32D41U LC 32M41U LC 40C32U 10 24 MAIN Unit 12 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Страница 91: ...LC 32D41U LC 32M41U LC 40C32U 10 25 10 11 12 13 14 15 16 17 18 19 ...
Страница 92: ...LC 32D41U LC 32M41U LC 40C32U 10 26 MAIN Unit 13 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
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Страница 94: ...LC 32D41U LC 32M41U LC 40C32U 10 28 MAIN Unit 14 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Страница 95: ...LC 32D41U LC 32M41U LC 40C32U 10 29 10 11 12 13 14 15 16 17 18 19 ...
Страница 96: ...LC 32D41U LC 32M41U LC 40C32U 10 30 MAIN Unit 15 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Страница 97: ...LC 32D41U LC 32M41U LC 40C32U 10 31 10 11 12 13 14 15 16 17 18 19 ...
Страница 98: ...LC 32D41U LC 32M41U LC 40C32U 10 32 MAIN Unit 16 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Страница 99: ...LC 32D41U LC 32M41U LC 40C32U 10 33 10 11 12 13 14 15 16 17 18 19 ...
Страница 100: ...LC 32D41U LC 32M41U LC 40C32U 10 34 MAIN Unit 17 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Страница 101: ...LC 32D41U LC 32M41U LC 40C32U 10 35 10 11 12 13 14 15 16 17 18 19 ...
Страница 102: ...LC 32D41U LC 32M41U LC 40C32U 10 36 MAIN Unit 18 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Страница 103: ...LC 32D41U LC 32M41U LC 40C32U 10 37 10 11 12 13 14 15 16 17 18 19 ...
Страница 104: ...LC 32D41U LC 32M41U LC 40C32U 10 38 MAIN Unit 19 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
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Страница 106: ...LC 32D41U LC 32M41U LC 40C32U 10 40 MAIN Unit 20 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
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Страница 110: ...LC 32D41U LC 32M41U LC 40C32U 10 44 MAIN Unit 22 22 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
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Страница 112: ...LC 32D41U LC 32M41U LC 40C32U 10 46 3 IF Unit IF Unit 1 2 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Страница 113: ...LC 32D41U LC 32M41U LC 40C32U 10 47 10 11 12 13 14 15 16 17 18 19 ...
Страница 114: ...LC 32D41U LC 32M41U LC 40C32U 10 48 IF Unit 2 2 A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
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Страница 116: ...LC 32D41U LC 32M41U LC 40C32U 10 50 4 R C LED Unit A C B D E F G H 1 2 3 4 5 6 ...
Страница 117: ...LC 32D41U LC 32M41U LC 40C32U 10 51 5 KEY Unit A C B D E F G H 1 2 3 4 5 6 ...
Страница 118: ...LC 32D41U LC 32M41U LC 40C32U 10 52 MEMO ...