VESTEL MB130E IDTV User manual

https://www.arizanotlari.com/
MB130E IDTV
SERVICE MANUAL

1
Table of Contents
1. INTRODUCTION...................................................................................................................................... 3
A. General Block Diagram ......................................................................................................................... 4
2. T/T2/C/A TUNER (U147).......................................................................................................................... 6
3. S/S2 TUNER (U146) OPTIONAL ............................................................................................................. 8
4. AUDIO AMPLIFIER STAGES ............................................................................................................... 11
A. MAIN AMPLIFIER (U121) (8W/10W/12W options).......................................................................... 11
B. HEADPHONE AMPLIFIER (U127) ................................................................................................... 14
C. SUBWOOFER AMPLIFIER (U124) (12 W)....................................................................................... 16
5. POWER STAGE...................................................................................................................................... 19
A. FDC642P............................................................................................................................................. 21
B. NTGS3446 .......................................................................................................................................... 21
C. RT7278G............................................................................................................................................. 22
D. TPS563200.......................................................................................................................................... 24
E. TPS54821............................................................................................................................................ 26
F. AP2111 ............................................................................................................................................... 28
6. MICROCONTROLLER........................................................................................................................... 29
A. MSTAR G10 MSD95PMVW4 (U128)................................................................................................ 29
7. VIDEO BACK AND PROCESSOR (MSTAR) (U105)............................................................................ 37
8. K1P MSD7R131 (U111).......................................................................................................................... 40
9. 4GB DDR3 SDRAM................................................................................................................................ 42
A. Hynix H5TQ4G63EFR-TEC (U132-U133)......................................................................................... 42
10. 4 GBIT NAND FLASH MEMORY ......................................................................................................... 43
A. MT29F4G08ABAEAWP (U114)......................................................................................................... 43
11. 16M-BIT [16M x 1] CMOS SERIAL FLASH EEPROM ......................................................................... 45
A. KH25L1606EM2-12G Macronix SPI Flash (U129) ............................................................................. 45
12. SPI 128Mb W25Q128FVSIG FOR K1P (U110)....................................................................................... 46
13. SPI 32Mb W25Q32FVSSIG FOR MFC (U108)....................................................................................... 47
14. USB INTERFACE................................................................................................................................... 47
A. USB POWER SWITCH TPS2553-1 (U109-U117-U122) ................................................................... 48
15. CI INTERFACE....................................................................................................................................... 49
16. SOFTWARE UPDATE............................................................................................................................ 49
A. Main Software Update......................................................................................................................... 49
17. TROUBLESHOOTING ........................................................................................................................... 49
A. No Backlight Problem............................................................................................................................ 49

2
B. CI Module Problem ............................................................................................................................. 52
C. IR Problem .......................................................................................................................................... 54
D. Keypad Touchpad Problems ................................................................................................................ 55
E. USB Problems..................................................................................................................................... 56
F. No Sound Problem............................................................................................................................... 57
G. Standby On/Off Problem ..................................................................................................................... 58
H. No Signal Problem............................................................................................................................... 58
18. SERVICE MENU SETTINGS................................................................................................................. 59

3
1. INTRODUCTION
17MB130 E main board is driven by MStar SOC. This IC is a single chip iDTV solution that supports
channel decoding, MPEG decoding, and media-center functionality enabled by a high performance AV
CODEC and CPU.
This board can be driven 50Hz and 100Hz UHD panels.
Key features include:
•Combo Front-End Demodulator
•A multi standart A/V format decoder
•The MACEpro video processor
•Home theatre sound processor
•Rich internet connectivity and completed digital home network solution
•Dual-stream decoder for 3D contents
•Mılti-purpose CPU for OS and multimedia
•Peripheral and power management
•Embedded DRAM (for connected option)
Supported peripherals are:
•1 RF input VHF I, VHF III, UHF
•1 Satellite input
•1 Back AV (CVBS, R/L_Audio)
•1 SCART socket
•1 YPbPr in
•1 PC input(Common)
•1 Subwoofer output(Common)
•4xside HDMI inputs (with ARC option from 2nd or 3rd input)
•1 Common interface(Common)
•1 Optic/ Quax S/PDIF output
•1 Headphone(Common)
•3 USB(2X Side Common, 1X back Optional) and 2x internal USB for Wifi/Bluetooth
•1 Ethernet-RJ45
•1 External Touchpad/Tact Switch (Common)

4
A. GENERAL BLOCK DİAGRAM

5
FLAS
H
CI
MAIN
IC
Power Con.
V
B
Y
O
N
E
C
O
n
Subwoofer
Amp
MFC
RAM
HP
HDMI
Connectors
Y
PB
PR
USB
USB
Tuner
S/PDIF
RJ45
VGA
LED
CON
Keyboard
CON
Audio
Amp
SCART
Internal
Wifi& BT
Connector
Sat. Tuner
A
U
D
I
O
IN
USB

6
2. T/T2/C/ATUNER (U147)
Description:
The Si2151 is Silicon Labs' sixth-generation hybrid TV tuner supporting all worldwide terrestrial and cable
TV standards. Requiring no external balun, SAW filters, wirewound inductors or LNAs, the Si2151 offers the
lowest-cost BOM for a hybrid TV tuner. Also included are an integrated power-on reset circuit and an option
for single power supply operation. As with prior-generation Silicon Labs TV tuners, the Si2151 maintains very
high linearity and low noise to deliver superior picture quality and a higher number of received stations when
compared to other silicon tuners. The Si2151 offers increased immunity to WiFi and LTE interference,
eliminating the need for external filtering. For the best performance with next-generation digital TV standards,
such as DVB-T2/C2, the Si2151 delivers industry-leading phase noise performance.
Features:
•Worldwide hybrid TV tuner
oAnalog TV: NTSC, PAL/SECAM
oDigital TV: ATSC/QAM, DVBT2/T/C2/C, ISDB-T/C, DTMB
•1.7 MHz, 6 MHz, 7 MHz, 8 MHz, and 10 MHz channel bandwidths
•42-1002 MHz frequency range
•Industry-leading margin to A/74, NorDig, DTG, ARIB, EN55020, OpenCable™,DTMB
•Lowest BOM for a hybrid TV tuner
oNo balun, SAW filters, or external inductors required
oIncreased ESD protection on 4pins
•Best-in-class real-world reception
oLowest phase noise
oHigh Wi-Fi and LTE immunity
•Low power consumption
o3.3 V and 1.8 V power supplies
oIntegrated 1.8 V LDO for 3.3 V singlesupply operation
•Integrated power-on reset circuit
•Standard CMOS process
•3x3 mm, 24-pin QFN package
•RoHS compliant

7
,
Figure 1.1 Si2151 Pin description

8
3. S/S2 TUNER (U146) OPTIONAL
Description
Figure: Pin description

9
Features
•Single-Chip tuner
•Compliant with DVB-S2 and ABS-S standards
•Support PSK, (PSK and 16APSK
•Direct-conversion from L-band to baseband
•Symbol rate:1 to 45 Msybol/s
•Integrated VCOs and PLL, with on-chip inductors varactors and loop filter
•Integrated RF AGC for optimal performance
•Integrated baseband DC offset cancellation removes external loop filters
•Excellent immunity to strong adjacent undersired channels
•Integrated clock driver provides auxiliary divided clock output for other devices
•Selectable RF bypass
•Support sleep mode
•2-wire serial bus with 3.3V compatible logic levels
•Power supply+3.3V
•28-pin QFN package
•RoSH compliant

10
Block Diagram

11
4. AUDIO AMPLIFIER STAGES
Figure: The block diagram of the audio part
A. MAIN AMPLIFIER (U121) (8W/10W/12W OPTİONS)
Description
AD82587D is a digital audio amplifier capable of driving a pair of 8 ohm, 20W or a single 4 ohm, 40W
speaker, both which operate with play music at a 24V supply without external heat-sink or fan requirement.
Using I2C digital control interface, the user can control AD82587D’s input format selection, DRC (dynamic
range control), mute and volume control functions. AD82587D has many built-in protection circuits to
safeguard AD82587D from connection errors.
Features
•16/18/20/24-bit input with I2S, Left-alignment and Right-alignment data format
•PSNR & DR(A-weighting) Loudspeaker: 97dB (PSNR), 105dB (DR) @ 24V
•Multiple sampling frequencies (Fs)
−32kHz / 44.1kHz / 48kHz and
−64kHz / 88.2kHz / 96kHz and
−128kHz/176.4kHz/192kHz
•System clock = 64x, 128x, 256x, 384x, 512x, 768x,1024x Fs
−256x~1024x Fs for 32kHz / 44.1kHz / 48kHz
−128x~512x Fs for 64kHz / 88.2kHz / 96kHz
−64x~256x Fs for 128kHz /176.4kHz/192kHz

12
•Supply voltage
−3.3V for digital circuit
−10V~26V for loudspeaker driver
•Loudspeaker output power for Stereo@ 24V
−10W x 2ch into 8_ @ 0.16% THD+N
−15W x 2ch into 8_ @ 0.18% THD+N
−20W x 2ch into 8_ @ 0.24% THD+N
•Loudspeaker output power for Mono@ 24V
−20W x 1ch into 4_ @ 0.17% THD+N
−30W x 1ch into 4_ @ 0.2% THD+N
−40W x 1ch into 4_ @ 0.24% THD+N
•Sounds processing including:
−Volume control (+24dB~-103dB, 0.125dB/step)
−Dynamic range control
−Power clipping
−Channel mixing
−User programmed noise gate with hysteresis window
−DC-blocking high-pass filter
•Anti-pop design
•Short circuit and over-temperature protection
•I2C control interface with selectable device address
•Internal PLL
•LV Under-voltage shutdown and HV Under-voltage
•detection
•Power saving mode
•Dynamic temperature control

13
Figure 3.2: Pin description
Figure 3.3: Functional Block Diagram
Table3.1: Absolute Maximum Ratings

14
Table3.2: Recommended Operating Conditions
B. HEADPHONE AMPLIFIER (U127)
Description
The AD22657B is a 2-Vrms cap-less stereo line driver. The device is ideal for single supply electronics.
Cap-less design can eliminate output dc-blocking capacitors for better low frequency response and save cost.
The AD22657B is capable of delivering 2-Vrms output into a 10k ohm load with 3.3V supply. The gain
settings can be set by users from 1V/V to 10V/V externally. The AD22657B has under voltage protection to
prevent POP noise. Build-in shutdown control and de-pop control sequence also help AD22657B to be a pop-
less device.
The AD22657B is available in a 10-pin MSOP package.
Features
•Operation Voltage: 3V to 3.6V
•Cap-less Output
oEliminates Output Capacitors
oImproves Low Frequency Response
oReduces POP/Clicks
•Low Noise and THD
oTypical SNR 107dB
oTypical Vn 7uVrms
oTypical THD+N < 0.02%
•Maximum Output Voltage Swing into 2.5k Load
o2Vrms at 3.3V Supply Voltage
•Single-ended Input

15
•External Gain Setting from 1V/V to 10V/V
•Fast Start-up Time: 0.5ms
•Integrated De-Pop Control
•External Under Voltage Protection
•Thermal Protection
•Less External Components Required
•+/-8kV IEC ESD Protection at line outputs
Figure: Pin description
Table: Pin functions

16
Table: Recommended operating conditions
C. SUBWOOFER AMPLIFIER (U124) (12 W)
Description
AD82586C is a digital audio amplifier capable of driving a pair of 8 ohm, 20W operating at 24V supply
without external heat-sink or fan requirement with play music.
AD82586C has 20 bands EQ function and can operate 20W stereo or 40W mono optionally.
AD82586C can provide advanced audio processing capabilities, such as volume control, 20 bands speaker
EQ, audio mixing, 3D surround and DRC (dynamic range control). These functions are fully programmable via
a simple I2C control interface.
Robust protection circuits are provided to protect AD82586C from damage due to accidental erroneous
operating condition. AD82586C is more tolerant to noise and PVT (Process, Voltage, and Temperature)
variation than the analog Class-AB or Class-D audio amplifier counterpart implemented by analog circuit
design. AD82586C is pop free during instantaneous power switch because of its built-in, robust anti-pop circuit.
Features
•16/18/20/24-bits input with I2S, Left-alignment and Right-alignment data format
•PSNR & DR (A-weighting) Loudspeaker: 99dB (PSNR), 104dB (DR) @24V
•Multiple sampling frequencies (Fs)
32kHz / 44.1kHz / 48kHz and
64kHz / 88.2kHz / 96kHz and
128kHz / 176.4kHz / 192kHz
•System clock = 64x, 128x, 192x, 256x, 384x, 512x, 576x, 768x, 1024x Fs
64x~1024x Fs for 32kHz / 44.1kHz / 48kHz
64x~512x Fs for 64kHz / 88.2kHz / 96kHz
64x~256x Fs for 128kHz / 176.4kHz / 192kHz
•Supply voltage
3.3V for digital circuit
10V~26V for loudspeaker driver

17
•Loudspeaker output power at 24V
10W x 2CH into 8 ohm @0.17% THD+N for stereo
20W x 2CH into 8 ohm @0.26% THD+N for stereo
•Sound processing including:
20 bands parametric speaker EQ
Volume control (+24dB~-103dB, 0.125dB/step)
Dynamic Range Control (DRC)
Dual band DRC
Power clipping
3D surround sound
Channel mixing
Noise gate with hysteresis window
Bass/Treble tone control
DC-blocking high-pass filter
•Anti-pop design
•Short circuit and over-temperature protection
•I2C control interface with selectable device address
•Support hardware and software reset
•Internal PLL
•LV Under-Voltage shutdown and HV Under-Voltage detection
•Power saving mode
Figure 3.4: Pin description

18
Figure 3.5: Functional Block Diagram
Table 3.3: Absolute Maximum Ratings
Table 3.4: Recommended Operating Conditions

19
5. POWER STAGE
Figure: Power Block Diagram
Figure: Power Socket and Power Options