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Table of Contents
1.
Introduction .......................................................................................................................................................... 2
2.
Tuner ........................................................................................................................................................................... 2
A.
Si2157 Terrestrial And Cable Tv Tuner ...................................................................................................................... 2
B.
M88TS2022 Satellıte Tuner ........................................................................................................................................ 5
3.
Audio Amplifier Stages ...................................................................................................................................... 6
A.
MAIN AMPLIFIER (TAS5719) ...................................................................................................................................... 6
B.
HEAD-PHONE AMPLIFIER STAGE .............................................................................................................................. 10
C.
SUBWOOFER AMPLIFIER STAGE .............................................................................................................................. 11
4.
Power Stage ........................................................................................................................................................... 16
5.
Microcontroller (Mstar Msd95C0H) ......................................................................................................... 30
6.
Video Back-End Processor (Mstar) ........................................................................................................... 37
7.
1Gb Ddr3 Sdram ..................................................................................................................................................... 41
8.
2Gb Ddr3 Sdram ..................................................................................................................................................... 42
9.
32Gbit (4G x 8 bit) NAND Flash Memory ................................................................................................................... 43
10. 16M-BIT [16M x 1] CMOS SERIAL FLASH EEPROM ............................................................................................ 45
11. Demodulator Stage ........................................................................................................................................................ 49
12. LNB supply and control IC ........................................................................................................................................... 53
13. Troubleshootıng ............................................................................................................................................................ 54
A.
No Backlıght Problem .............................................................................................................................................. 54
D.
CI Module Problem .................................................................................................................................................. 56
E.
Stayıng ın Stand-by Mode ........................................................................................................................................ 58
F.
IR Problem ................................................................................................................................................................ 58
G.
Keypad Touchpad Problems .................................................................................................................................... 59
H.
Usb Problems ........................................................................................................................................................... 59
İ.
No Sound Problem ................................................................................................................................................... 60
J.
Standby On/Off Problem ......................................................................................................................................... 61
K.
No Sıgnal Problem .................................................................................................................................................... 61
14. General Block Dıagram ................................................................................................................................................ 63
15. PLACEMENT OF BLOCKS ........................................................................................................................................ 64
1
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