Sharp LC-22LE240K Service Manual ▷ View online
1
LC-22LE240
SERVICE MANUAL
LED LCD
COLOUR TELEVISION
160mm
125mm
100mm
80mm
63mm
50mm
40mm
31.5mm
25mm
20mm
A-data-1
sharp.
Corporate Trademark
DVB-T / DVB-C (HDTV), PAL
B/G, I
/ SECAM
B/G, D/K, L/L’
SYSTEM COLOUR TELEVISION
1st Edition
In the interests of user safety (required by safety
regulations in some countries) the set should be re-
stored to its original condition and only parts identical
to those specified should be used.
CONTENTS
TABLE OF CONTENTS ....................................................................................................................... 2
ELECTRICAL SPECIFICATIONS ....................................................................................................... 5
IMPORTANT SERVICE SAFETY PRECAUTIONS ................................................................................ 6
OPERATION MANUAL ........................................................................................................................... 9
DIMENSIONS ..................................................................................................................................... 15
INTRODUCTION .................................................................................................................................. 16
CIRCUIT DESCRIPTIONS .................................................................................................................. 19
SERVICE MENU SETTINGS ........................................................................................................... 51
SOFTWARE UPDATE ............................................................................................................................ 56
TROUBLESHOOTING ..................................................................................................................... 57
OVERAL WIRING DIAGRAM ........................................................................................................... 65
SCHEMATIC DIAGRAMS ................................................................................................................ 66
PRINTED WIRING BOARD ....................................................................................................................... 76
REPLACEMENT PARTS LISTING ............................................................................................... 77
CABINET AND MECHANICAL PARTS LISTING ...................................................................... 86
Issued: 16
Th
March 2012
MODEL
LC-22LE240K
LC-22LE240K
LCD COLOUR TELEVISION
OPERATION MANUAL
ENGLISH
502
000
00
SHARP ELECTRONICS (UK) Limited
4 Furzeground Way, Stockley Park
Uxbridge, UB11 1EZ, UK
17MB62 CHASSIS
SHARP CORPORATION
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LC-22LE240
TABLE OF CONTENTS
i SPECIFICATIONS .......................................................................................................................... 5
ii IMPORTANT SERVICE SAFETY PRECAUTIONS ......................................................................... 6
iii OPERATION MANUAL ................................................................................................................. 9
iv DIMENSIONS ............................................................................................................................... 15
0. INTRODUCTION ........................................................................................................................... 16
ii IMPORTANT SERVICE SAFETY PRECAUTIONS ......................................................................... 6
iii OPERATION MANUAL ................................................................................................................. 9
iv DIMENSIONS ............................................................................................................................... 15
0. INTRODUCTION ........................................................................................................................... 16
0.1. General Block Diagram ................................................................................................. 17
0.2. MB60 Placement of Blocks ........................................................................................... 18
0.2. MB60 Placement of Blocks ........................................................................................... 18
1. TUNER(TU3) ................................................................................................................................. 19
1.1. General description of Sony RE216 ........................: .................................................... 19
2. AUDIO AMPLIFIER STAGE WITH AZAD2102(U163, U164) ........................................................ 21
2.1. General Description ...................................................................................................... 21
2.2. Features ........................................................................................................................ 21
2.3. Absolute Ratings ........................................................................................................... 22
2.3.1. Electrical Characteristics ........................................................................................ 22
2.3.2. Operating Specifications. ....................................................................................... 23
2.4. Pinning ............................................................................................................,............. 23
2.2. Features ........................................................................................................................ 21
2.3. Absolute Ratings ........................................................................................................... 22
2.3.1. Electrical Characteristics ........................................................................................ 22
2.3.2. Operating Specifications. ....................................................................................... 23
2.4. Pinning ............................................................................................................,............. 23
3. AUDIO AMPLIFIER STAGE WITH TPA3113 (U168,) .................................................................. 24
3.1. General Description .................................................................................................... 24
3.2. Features ........................................................................................................................ 24
3.3. Absolute Ratings .......................................................................................................... 24
3.3.1. Electrical Characteristics ........................................................................................ 24
3.3.2. Operating Specifications ........................................................................................ 25
3.4. Pinning .......................................................................................................................... 25
3.2. Features ........................................................................................................................ 24
3.3. Absolute Ratings .......................................................................................................... 24
3.3.1. Electrical Characteristics ........................................................................................ 24
3.3.2. Operating Specifications ........................................................................................ 25
3.4. Pinning .......................................................................................................................... 25
4. POWER STAGE ............................................................................................................................ 26
4.1. Power Management ...................................................................................................... 29
5. MICROCONTROLLER – MSTAR ( U5 ) ....................................................................................... 31
5.1. General Description ...................................................................................................... 31
5.2. MSTAR Block Diagram ................................................................................................. 35
5.3. Reset Circuit .................................................................................................................. 35
5.2. MSTAR Block Diagram ................................................................................................. 35
5.3. Reset Circuit .................................................................................................................. 35
6. CI INTERFACE .............................................................................................................................. 36
7. USB INTERFACE .......................................................................................................................... 36
8. DDR2 SDRAM K4T1G146QF ( U155 ) ......................................................................................... 37
8.1. General Description ..................................................................................................... 37
8.2. Features ....................................................................................................................... 37
8.3. Pinning ......................................................................................................................... 38
8.2. Features ....................................................................................................................... 37
8.3. Pinning ......................................................................................................................... 38
9. SCALER AND LVDS SOCKETS.. ................................................................................................. 39
9.1. LVDS sockets Block Diagram ..................................................................................... 39
9.2. Panel Supply Switch Circuit ......................................................................................... 39
9.2. Panel Supply Switch Circuit ......................................................................................... 39
10. SPI FLASH MEMORY - MX25L1005 (U158) ............................................................................. 40
10.1. General Description .................................................................................................... 40
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LC-22LE240
10.2. Features ...................................................................................................................... 41
10.3. Absolute Maximum Ratings ........................................................................................ 41
10.4. Pinning ........................................................................................................................ 41
10.3. Absolute Maximum Ratings ........................................................................................ 41
10.4. Pinning ........................................................................................................................ 41
11. NAND FLASH MEMORY – NAND512XXA2C (U162) ................................................................ 42
11.1. General Description .................................................................................................... 42
11.2. Features ...................................................................................................................... 42
11.3. Pinning ........................................................................................................................ 43
11.2. Features ...................................................................................................................... 42
11.3. Pinning ........................................................................................................................ 43
12. LM1117(U175, U180, U181) ....................................................................................................... 44
12.1. General Description .................................................................................................... 44
12.2. Features ...................................................................................................................... 44
12.3. Applications ................................................................................................................. 44
12.4. Absolute Maximum Ratings ........................................................................................ 44
12.5. Pinning ........................................................................................................................ 44
12.2. Features ...................................................................................................................... 44
12.3. Applications ................................................................................................................. 44
12.4. Absolute Maximum Ratings ........................................................................................ 44
12.5. Pinning ........................................................................................................................ 44
13. MP2012 (U176) ........................................................................................................................... 45
13.1. General Description .................................................................................................... 45
13.2. Features ...................................................................................................................... 45
13.3. Pinning......................................................................................................................... 45
13.2. Features ...................................................................................................................... 45
13.3. Pinning......................................................................................................................... 45
14. RTA8283A (U23, U173) .............................................................................................................. 46
14.1. General Description .................................................................................................... 46
14.2. Features ...................................................................................................................... 46
14.3. Pinning......................................................................................................................... 46
14.2. Features ...................................................................................................................... 46
14.3. Pinning......................................................................................................................... 46
15. MP1583 (U174) ........................................................................................................................... 47
15.1. General Description .................................................................................................... 47
15.2. Features ...................................................................................................................... 47
15.3. Pinning ........................................................................................................................ 47
15.2. Features ...................................................................................................................... 47
15.3. Pinning ........................................................................................................................ 47
16. FDC642 ....................................................................................................................................... 48
16.1. General Description .................................................................................................... 48
16.2. Features ...................................................................................................................... 48
16.3. Pinning ........................................................................................................................ 48
16.2. Features ...................................................................................................................... 48
16.3. Pinning ........................................................................................................................ 48
17. FDC604P...................................................................................................................................... 49
17.1. General Description .................................................................................................... 49
17.2. Features ...................................................................................................................... 49
17.3. Pinning ........................................................................................................................ 49
17.2. Features ...................................................................................................................... 49
17.3. Pinning ........................................................................................................................ 49
18. CONNECTORS ........................................................................................................................... 49
18.1. SCART (SC1) ............................................................................................................. 49
18.2. HDMI (CN707,CN708) ................................................................................................ 50
18.3. VGA (CN132) .............................................................................................................. 50
18.2. HDMI (CN707,CN708) ................................................................................................ 50
18.3. VGA (CN132) .............................................................................................................. 50
19. SERVICE MENU SETTINGS ...................................................................................................... 51
19.1. Video Settings ............................................................................................................. 52
19.2. Audio Settings ............................................................................................................. 52
19.3. Options ........................................................................................................................ 53
19.4. Tuning Settings ........................................................................................................... 54
19.5. Source Settings ........................................................................................................... 54
19.2. Audio Settings ............................................................................................................. 52
19.3. Options ........................................................................................................................ 53
19.4. Tuning Settings ........................................................................................................... 54
19.5. Source Settings ........................................................................................................... 54
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LC-22LE240
19.6. USB Operations .......................................................................................................... 55
20. SOFTWARE UPDATE ................................................................................................................. 56
21. TROUBLESHOOTING ................................................................................................................ 57
21.1. No Backlight Problem ................................................................................................. 57
21.2. CI Module Problem .................................................................................................... 58
21.3. Led Blinking Problem .................................................................................................. 60
21.4. IR Problem .................................................................................................................. 61
21.5. Keypad Touchpad Problems ....................................................................................... 62
21.6. USB Problems ............................................................................................................. 62
21.7. No Sound Problem ...................................................................................................... 63
21.8. No Sound Problem at Headphone............................................................................... 63
21.9. Standby On/Off Problem.............................................................................................. 64
21.10. No Signal Problem .................................................................................................... 64
21.2. CI Module Problem .................................................................................................... 58
21.3. Led Blinking Problem .................................................................................................. 60
21.4. IR Problem .................................................................................................................. 61
21.5. Keypad Touchpad Problems ....................................................................................... 62
21.6. USB Problems ............................................................................................................. 62
21.7. No Sound Problem ...................................................................................................... 63
21.8. No Sound Problem at Headphone............................................................................... 63
21.9. Standby On/Off Problem.............................................................................................. 64
21.10. No Signal Problem .................................................................................................... 64
22. OVERALL WIRING DIAGRAM .................................................................................................... 65
23. SCHEMATIC DIAGRAMS ........................................................................................................... 66
24. PRINTED WIRING BOARD ......................................................................................................... 76
25. REPLACEMENT PARTS LISTING .............................................................................................. 77
26. CABINET AND MECHANICAL PARTS LISTING ........................................................................ 86
