VESTEL MB130 IDTV, Service Manual

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1
Table of Contents
1. INTRODUCTION .......................................................................................................................................................... 3
A. General Block DIagram .............................................................................................................................................. 4
B. Placement of Blocks ................................................................................................................................................... 5
2. T/T2/C/A TUNER (U118) .............................................................................................................................................. 6
3. S/S2 TUNER (U116) OPTIONAL ................................................................................................................................. 8
4. AUDIO AMPLIFIER STAGES ...................................................................................................................................... 9
A. MAIN AMPLIFIER (U123) (8W/10W/12W options) .................................................................................................. 10
B. HEADPHONE AMPLIFIER (U120) .............................................................................................................................. 12
C. SCART AUDIO AMPLIFIER (U119) ............................................................................................................................. 13
5. POWER STAGE ........................................................................................................................................................... 14
A. FDC642P ................................................................................................................................................................... 16
B. NTGS3446 ................................................................................................................................................................ 16
C. RT7278G ................................................................................................................................................................... 18
D. TPS563200 ............................................................................................................................................................... 20
E. TPS54821 ................................................................................................................................................................. 22
F. AP2111 ..................................................................................................................................................................... 24
6. MICROCONTROLLER ............................................................................................................................................... 25
A. MSTAR G10 MSD95PMVW4 (U114) ........................................................................................................................ 25
7. 2GB DDR3 SDRAM .................................................................................................................................................... 33
A. Hynix H5TQ2G63GFR-TEC (U113-U110) .................................................................................................................. 33
8. 2GBIT - 4GBIT(CONNECTED OPTION) (256M X 8 BIT) NAND FLASH MEMORY .......................................... 34
A. MT29F2G08ABAEAWP (U105) ................................................................................................................................. 34
9. 16M-BIT [16M x 1] CMOS SERIAL FLASH EEPROM ............................................................................................ 36
A. KH25L1606EM2-12G Macronix SPI Flash (U115) ..................................................................................................... 36
10. USB INTERFACE ........................................................................................................................................................ 37
A. USB POWER SWITCH TPS2553-1 (U109-U117-U122) ............................................................................................. 38
11. CI INTERFACE ............................................................................................................................................................ 38
12. SOFTWARE UPDATE ................................................................................................................................................ 39
A. Main Software Update ............................................................................................................................................. 39
13. TROUBLESHOOTING ................................................................................................................................................ 39
A. No Backlight Problem .............................................................................................................................................. 39
B. CI Module Problem .................................................................................................................................................. 42
C. Staying In Stand-by Mode ........................................................................................................................................ 43
D. IR Problem ................................................................................................................................................................ 43
E. Keypad Touchpad Problems .................................................................................................................................... 44