Sharp LC-24LE510K

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79

LC-19LE510

LC-22LE510

LC-24LE510

26.4. IR Problem

Problem: LED or IR not working

Check LED card supply on MB60 chassis.

25.4

Table of Contents

Default Chapter2
- Table of Contents2
- Electrical Specifications6
- Specifications6
- Important Service Safety Precautions9
- Operation Manual12
- Dimensions18
- Dimensional Drawings19
1 Introduction21
- General Block Diagram22
- MB60 Placement of Blocks23
2 Tuner(Tu102)24
- Circuit Descriptions24
- Features of DTOS403LH122X25
- General Description of Samsung DTOS403LH122X25
- Pinning26
3 SAW FILTER - Audio - Epcos K9656M(Z101)27
- Standard27
- Features27
- Pin Configuration27
- Frequency Response28
4 SAW FILTER - Video - Epcos K3958M(Z102)29
- Standard29
- Features29
- Pin Configuration29
- Frequency Response30
5 Audio Amplifier Stage with Azad2102(U163, U164)31
- General Description31
- Features31
- Absolute Ratings32
- Electrical Characteristics32
- Operating Specifications33
- Pinning34
6 Audio Amplifier Stage with Tpa3113(U168)35
- General Description35
- Features35
- Absolute Ratings35
- Electrical Characteristics35
- Operating Specifications36
- Pinning36
7 Power Stage37
- Short CCT Protection Circuit39
- Power Management40
8 Microcontroller - Mstar(U157)42
- General Description42
- General Features42
- MSTAR Block Diagram47
- Reset Circuit47
101 CI Interface48
- Block Diagram48
- CI Interface Power Switch48
10 Usb Interface49
11 Ddr2 Sdram 8M × 4 Banks × 16 Bit (W9751G6Jb) (U154, U155)50
- General Description50
- Features50
- Electrical Characteristics50
- Pinning51
12 Scaler and Lvds Sockets53
- LVDS Sockets Block Diagram53
- Panel Supply Switch Circuit53
13 Nand Flash Memory - Mx25L1005 (U158)55
- General Description55
- Features55
- Absolute Maximum Ratings55
- Pinning55
14 Nand Flash Memory - Nand512Xxa2C (U162)56
- General Description56
- Features56
- Pinning57
15 USB2.0 to Fast Ethernet - ASIX AX88X72A (U171)58
- General Description58
- Features58
- Block Diagram59
- Pinning59
16 Lm1117(U175, U180, U181)60
- General Description60
- Features60
- Applications60
- Absolute Maximum Ratings60
- Pinning60
17 Mp2012 (U176)61
- General Description61
- Features61
- Pinning61
18 Rta8283A (U23, U173)62
- General Description62
- Features62
- Pinning63
19 Mp1583 (U174)64
- General Description64
- Features64
- Pinning64
20 Fdc64265
- General Description65
- Features65
- Pinning65
21 Fdc604P66
- General Description66
- Features66
- Pinning66
22 Connectors67
- Scart (Sc1)67
- Hdmi (Cn707,Cn708)67
- Vga (Cn132)68
23 Service Menu Settings69
- Video Settings70
- Audio Settings70
- Options71
- Tuning Settings72
- Source Settings72
- Diagnostic73
- USB Operations73
24 Software Update74
25 Troubleshooting75
- No Backlight Problem75
- CI Module Problem77
- Led Blinking Problem78
- IR Problem79
- Keypad Touchpad Problems80
- USB Problems81
- No Sound Problem82
- No Sound Problem at Headphone82
- Standby On/Off Problem82
- No Signal Problem83
26 Overall Wiring Diagram85
27 Schematic Diagrams88
28 Printed Wiring Board99
29 Replacement Part List101
30 Cabinet and Mechanical Parts Listing125
- Sharp Corporation132

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