VESTEL 17MB82S, Service Manual

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TABLE OF CONTENTS
1. INTRODUCTION ...................................................................................................................... 3
1.1. General Block Diagram .................................................................................................. 4
1.2. MB82S Placement of Blocks .......................................................................................... 5
1. TUNER(MXL601) ...................................................................................................................... 6
2. AUDIO AMPLIFIER STAGE .................................................................................................. .. 7
TAS5721 (optional) ................................................................ ................................................... 7
2.1. General Description ........................................................................................................ 7
2.2. Features ........................................................................................................................... 7
2.3. Absolute Ratings ............................................................................................................. 8
2.3.1. Electrical Characteristics ............................................................................................ 8
2.3.2. Operating Specifications ........................................................................................... 10
2.4. Pinning .......................................................................................................................... 11
TS4962M (Optional 2,5W) ....................................................................................................... 14
3. POWER STAGE ....................................................................................................................... 15
3.1. Power Management ...................................................................................................... 17
4. MICROCONTROLLER – MediaTek ....................................................................................... 18
4.1. Description .................................................................................................................... 18
MT5820 (Main IC) (U1) ............................................................................................................... 18
4.2. MediaTek Block Diagram ............................................................................................. 24
4.3. Crystal Specification ..................................................... ................................................25
5. USB INTERFACE ....................................................................... ................................................25
6. DDR3 SDRAM 1Gb G-Die ........................................................................................................ 26
Description: ................................................................................................................................... 26
Features: .................................................................................................................................... 26
7. SCALER AND LVDS SOCKETS ........................................................................................... 28
7.1. LVDS sockets Block Diagram ...................................................................................... 28
7.2. Panel Supply Switch Circuit ......................................................................................... 29
8.
SPI FLASH MEMORY
. ...................................................................................................................
29
8.1
EN25Q64 64 Megabit
................................................................................................ 29
8.1.1 General Description ...................................................................................................... 29
8.1.2 Features ......................................................................................................................... 30
8.1.3 Block Diagram .............................................................................................................. 30
8.1.4 Pinning .......................................................................................................................... 31
8.2
EN25QH16 16 Megabit
............................................. .................................................
8.2.1 General Description ...................................................... ..................................... ............
8.2.2 Features ..........................................................................................................................
8.2.3 Block Diagram ...............................................................................................................
8.2.4 Pinning ..........................................................................................................................
9. I-LM1117/LM 800mA Low-Dropout Linear Regulator ........................................................
10. CONNECTORS ....................................................................................................................
10.1. HDMI (CN707,CN708) ................................................................................................
10.2. USB(CN37, CN38) .......................................................................................................
10.3. VGA (CN711) ...............................................................................................................
10.4. SCART (SC1) ...............................................................................................................
11. SERVICE MENU SETTINGS ............................................................................................. 38
11.1. Video Settings ............................................................................................................... 39