Read Sharp LC-22LE250EK (serv.man2) Service Manual online
1
LC-22LE250
LC-24LE250
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
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 .................................................................................................................................... 12
CAUTION WHEN REMOVE THE REAR CABINET .................................................................................... 14
INTRODUCTION ............................................................................................................................... 17
CIRCUIT DESCRIPTIONS .................................................................................................................. 20
SOFTWARE UPDATE ...................................................................................................................... 54
TROUBLESHOOTING ............................................................................................................................ 55
SERVICE MENU SETTINGS .................................................................................................................... 62
OVERALL WIRING DIAGRAM ................................................................................................................ 67
SCHEMATIC DIAGRAMS ........................................................................................................................ 69
PRINTED WIRING BOARD ............................................................................................................. 80
CABINET AND MECHANICAL COMPONENTS ................................................................................... 81
REPLACEMENT PARTS LISTING ...................................................................................................... 83
ELECTRICAL SPECIFICATIONS ....................................................................................................... 5
IMPORTANT SERVICE SAFETY PRECAUTIONS ................................................................................ 6
OPERATION MANUAL ........................................................................................................................... 9
DIMENSIONS .................................................................................................................................... 12
CAUTION WHEN REMOVE THE REAR CABINET .................................................................................... 14
INTRODUCTION ............................................................................................................................... 17
CIRCUIT DESCRIPTIONS .................................................................................................................. 20
SOFTWARE UPDATE ...................................................................................................................... 54
TROUBLESHOOTING ............................................................................................................................ 55
SERVICE MENU SETTINGS .................................................................................................................... 62
OVERALL WIRING DIAGRAM ................................................................................................................ 67
SCHEMATIC DIAGRAMS ........................................................................................................................ 69
PRINTED WIRING BOARD ............................................................................................................. 80
CABINET AND MECHANICAL COMPONENTS ................................................................................... 81
REPLACEMENT PARTS LISTING ...................................................................................................... 83
Issued: 17
th
June 2013
SE00LC22LE250
MODEL
LC-22LE250E-/ V/ K/ RU
LC-24LE250E-BK/E-WH
LC-24LE250K-BK/K-WH
LC-24LE250V-BK/V-WH
LC-24LE250RU-BK/RU-WH
LC-24LE250E-BK/E-WH
LC-24LE250K-BK/K-WH
LC-24LE250V-BK/V-WH
LC-24LE250RU-BK/RU-WH
SHARP ELECTRONICS (UK) Limited
4 Furzeground Way, Stockley Park
Uxbridge, UB11 1EZ, UK
50
23
11
02
LCD COLOUR TELEVISION
OPERATION MANUAL
EN
G
LI
SH
LC-32LE350E-BK
LC-32LE350E-WH
LC-39LE350E-BK
LC-39LE350E-WH
LCD-FARB-TV
BEDIENUNGSANLEITUNG
D
EU
TS
C
H
TELEVISIONE A COLORI LCD
MANUALE DI FUNZIONAMENTO
IT
A
LI
A
N
O
FR
A
N
Ç
A
IS
TÉLÉVISEUR LCD COULEUR
MODE D'EMPLOI
17MB95S CHASSIS
SHARP CORPORATION
2
LC-24LE250
LC-22LE250
TABLE OF CONTENTS
i SPECIFICATIONS ...................................................................................................................... 5
ii IMPORTANT SERVICE SAFETY PRECAUTIONS .................................................................... 6
iii OPERATION MANUAL .............................................................................................................. 9
iv DIMENSIONS ............................................................................................................................ 12
V CAUTION WHEN REMOVE THE REAR CABINET ................................................................... 14
1. INTRODUCTION ......................................................................................................................... 17
ii IMPORTANT SERVICE SAFETY PRECAUTIONS .................................................................... 6
iii OPERATION MANUAL .............................................................................................................. 9
iv DIMENSIONS ............................................................................................................................ 12
V CAUTION WHEN REMOVE THE REAR CABINET ................................................................... 14
1. INTRODUCTION ......................................................................................................................... 17
1.1. General Block Diagram .............................................................................................. 18
1.2. MB60 Placement of Blocks ......................................................................................... 19
1.2. MB60 Placement of Blocks ......................................................................................... 19
2. TUNER ....................................................................................................................................... 20
A. ST2156 Terrestrial and Cable TV Tuner
A. ST2156 Terrestrial and Cable TV Tuner
A.1 Description ................................................................................................................. 20
A.2 Features .................................................................................................................... 20
A.2 Features .................................................................................................................... 20
3. AUDIO AMPLIFIER STAGES ……………………………………………………………….….……. 23
A. Main Amplifier (TAS5719) (6-8 W option) ............................................................................. 23
a. General Description .................................................................................................... 23
b. Features ...................................................................................................................... 23
c. Pin Descriptions and functions..................................................................................... 24
b. Features ...................................................................................................................... 23
c. Pin Descriptions and functions..................................................................................... 24
B. Main Amplifier (TS4962M) (2,5 W. option) ............................................................................ 26
a. General Description..................................................................................................... 26
b. Features ...................................................................................................................... 26
c. Pin descriptions and functions ..................................................................................... 27
C. Headphone Amplifier Stage ................................................................................................ 28
4. POWER STAGE.......................................................................................................................... 29
FDC 642P ................................................................................................................................. 30
FDC 642P ................................................................................................................................. 30
a. General Description ..................................................................................................... 30
TPS65251 .................................................................................................................................. 30
a. General Descriptions .................................................................................................... 30
b. Features ....................................................................................................................... 31
b. Features ....................................................................................................................... 31
MP1484 .................................................................................................................................... 33
a. General Descriptions ................................................................................................... 33
b. Features ....................................................................................................................... 33
APL5910 ................................................................................................................................... 35
a. General Descriptions .................................................................................................. 35
b. Features ...................................................................................................................... 35
LM1117 ..................................................................................................................................... 37
a. General Descriptions .................................................................................................. 37
b. Features Descriptions ................................................................................................. 37
a. General Descriptions ................................................................................................... 33
b. Features ....................................................................................................................... 33
APL5910 ................................................................................................................................... 35
a. General Descriptions .................................................................................................. 35
b. Features ...................................................................................................................... 35
LM1117 ..................................................................................................................................... 37
a. General Descriptions .................................................................................................. 37
b. Features Descriptions ................................................................................................. 37
3
LC-22LE250
LC-24LE250
5. MICROCONTROLLER – MSTAR MSD8WB9BX ......................................................................... 38
a. General Description ...................................................................................................... 38
b. Features ....................................................................................................................... 39
6. 1Gb. DDR3 SDRAM .................................................................................................................... 42
Hynix H5TQ1G630FA
a. Description ................................................................................................................... 42
b. Features ....................................................................................................................... 42
7. 1Gb G-die DDR3 SDRAM ............................................................................................................ 43
a. General Description ...................................................................................................... 38
b. Features ....................................................................................................................... 39
6. 1Gb. DDR3 SDRAM .................................................................................................................... 42
Hynix H5TQ1G630FA
a. Description ................................................................................................................... 42
b. Features ....................................................................................................................... 42
7. 1Gb G-die DDR3 SDRAM ............................................................................................................ 43
Samsung K4B1G1646G
a. Key Features ............................................................................................................... 43
b. Description .................................................................................................................. 44
8. 2Gbit (256M x 8 bit) NAND FLASH MEMORY .............................................................................. 45
H27U2G8F2CTR-BC
H27U2G8F2CTR-BC
a. Key Features ............................................................................................................... 45
b. Descriptions ................................................................................................................ 46
b. Descriptions ................................................................................................................ 46
9. 16M-BIT (16Mx1) CMOS SERIAL NAND FLASH EEPROM ....................................................... 48
Mx25L1602 Mstar SPI FLASH
a. Key Features .............................................................................................................. 48
Mx25L1602 Mstar SPI FLASH
a. Key Features .............................................................................................................. 48
b. General Description ................................................................................................... 50
10. USB INTERFACE ....................................................................................................................... 51
USB2512B
USB2512B
a. General Descriptions ................................................................................................. 52
b. Features ..................................................................................................................... 52
c. Applications ................................................................................................................ 52
b. Features ..................................................................................................................... 52
c. Applications ................................................................................................................ 52
11. CI INTERFACE ........................................................................................................................... 53
12. SOFTWARE UPDATE ................................................................................................................ 54
13. TROUBLESHOOTING ................................................................................................................ 55
13. TROUBLESHOOTING ................................................................................................................ 55
A. No Backlight Problem .................................................................................................. 55
B. CI Module Problem ........................................................................................................ 56
C. Staying in Stand-by Mode Problem ............................................................................... 58
B. CI Module Problem ........................................................................................................ 56
C. Staying in Stand-by Mode Problem ............................................................................... 58
D. IR Problem .................................................................................................................... 58
E. Keypad Touchpad Problems ......................................................................................... 58
F. USB Problem ................................................................................................................. 60
G. No Sound Problem ........................................................................................................ 60
H. Standby On/Off Problem ............................................................................................... 61
I. No Signal Problem .......................................................................................................... 61
14. SERVICE MENU SETTINGS ...................................................................................................... 62
15. OVERAL WIRING DIAGRAM ..................................................................................................... 67
15. OVERAL WIRING DIAGRAM ..................................................................................................... 67
4
LC-24LE250
LC-22LE250
16. SCHEMATIC DIAGRAMS .......................................................................................................... 69
17. PRINTED WIRING BOARD ....................................................................................................... 80
18. CABINET AND MECHANICAL COMPONENTS ........................................................................ 81
17. PRINTED WIRING BOARD ....................................................................................................... 80
18. CABINET AND MECHANICAL COMPONENTS ........................................................................ 81
19. REPLACEMENT PARTS LISTING ............................................................................................. 83
20. CABINET AND MECHANICAL PARTS LISTING .......................................................................103