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PHILIPS
43PUS6031/12
49PUS6031/12
55PUS6031/12
MB120
SERVICE MANUAL
VES16.1E LA
Table of Contents
1. INTRODUCTION .......................................................................................................................................................... 2
2. TUNER ........................................................................................................................................................................... 3
A. SI2151 Terrestrial and Cable TV Tuner: ..................................................................................................................... 3
B. M88TS2022 Satellite Tuner ........................................................................................................................................ 5
3. AUDIO AMPLIFIER STAGES...................................................................................................................................... 6
A. MAIN AMPLIFIER (U8) (10W/12W options) ............................................................................................................... 6
B. SUBWOOFER AMPLIFIER (U9) (12 W) ........................................................................................................................ 8
C. HEADPHONE AMPLIFIER (U59) ................................................................................................................................ 10
D. SUBWOOFER PREAMPLIFIER (U30) .......................................................................................................................... 12
E. SCART AUDIO AMPLIFIER (U31) ............................................................................................................................... 12
4. POWER STAGE ........................................................................................................................................................... 12
A. TPS54528 ................................................................................................................................................................. 13
B. TPS54628 ................................................................................................................................................................. 15
C. TPS54821 ................................................................................................................................................................. 17
D. FDS4685 ................................................................................................................................................................... 19
E. NTGS3446 ................................................................................................................................................................ 20
F. APL5910 ................................................................................................................................................................... 21
G. LM1117 .................................................................................................................................................................... 23
5. MICROCONTROLLER (MSTAR MSD95M0D) ........................................................................................................ 24
6. VIDEO BACK-END PROCESSOR (MSTAR) ........................................................................................................... 31
7. 2Gb DDR3 SDRAM ..................................................................................................................................................... 34
8. 4Gb DDR3L SDRAM ................................................................................................................................................... 35
9. 32GBIT (4G X 8 BIT) NAND FLASH MEMORY ..................................................................................................... 37
10. 16M-BIT [16M x 1] CMOS SERIAL FLASH EEPROM ............................................................................................ 39
A. MX25L1606E SPI Flash ............................................................................................................................................. 39
B. M25Q32FV SPI Flash ................................................................................................................................................ 41
11. DEMODULATOR STAGE .......................................................................................................................................... 43
12. LNB SUPPLY AND CONTROL IC ............................................................................................................................ 46
13. SERVICE MENU SETTINGS ..................................................................................................................................... 48
A. Video Settings .......................................................................................................................................................... 48
B. Audio Settings .......................................................................................................................................................... 49
C. Options ..................................................................................................................................................................... 49
D. Tuning Settings......................................................................................................................................................... 51
E. Source Settings ........................................................................................................................................................ 51
F. Diagnostic................................................................................................................................................................. 52
1
G. USB Operations ........................................................................................................................................................ 52
14. SOFTWARE UPDATE ................................................................................................................................................ 52
15. HI-POT TEST ............................................................................................................................................................... 52
16. MECHANICAL INSTRUCTIONS .............................................................................................................................. 53
17. TROUBLESHOOTING ................................................................................................................................................ 56
18. PCB LAYOUTS ........................................................................................................................................................... 68
19. PARTS POSITIONS ..................................................................................................................................................... 72
20. MAPPING DATA......................................................................................................................................................... 73
21. GENERAL BLOCK DIAGRAM ................................................................................................................................. 74
22. STYLING SHEETS ...................................................................................................................................................... 75
23. SPARE PART LISTS ................................................................................................................................................... 76
1. INTRODUCTION
17MB120 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 IC also supports 4K2K (UHD).
Key features includes,
Combo Front-End Demodulator
A multi standart A/V format decoder
The MACEpro video processor
Home theatre sound processor
Internet and Variety of Connectivity Support
Dual-stream decoder for 3D contents
Multi-purpose CPU for OS and multimedia
Peripheral and power management
Supported peripherals are:
1 RF input VHF I, VHF III, UHF
1 Satellite input
1 Side AV (CVBS, R/L_Audio)
1 SCART socket(Common)
1 YPbPr / Back S-Video(Common)
1 PC input(Common)
4 HDMI input(Common)
1 Common interface(Common)
1 Optic S/PDIF output(Common)
1 Stereo audio input for PC(Common)
1 Subwoofer output(Common)
1 Headphone(Common)
1x USB3.0 and 2xUSB2.0(Common)
1 Ethernet-RJ45 (Common)
1 External Touchpad(Common)
2
2. TUNER
A. SI2151 TERRESTRAL AND CABLE TV TUNER:
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
o Analog TV: NTSC, PAL/SECAM
o Digital 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, OpenCableTM,DTMB
Lowest BOM for a hybrid TV tuner
o No balun, SAW filters, or external inductors required
o Increased ESD protection on 4pins
Best-in-class real-world reception
o Lowest phase noise
o High Wi-Fi and LTE immunity
Low power consumption
o 3.3 V and 1.8 V power supplies
o Integrated 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
Figure 1.1 Si2151 Pin description
3
Table 1.1 Pin Functions
4
B. M88TS2022 SATELLTE TUNER
Features and General Description
Pin Assigment
5
Absolute Maximum Ratings and Recommended Operating Conditions
3. AUDIO AMPLIFIER STAGES
A. MAIN AMPLIFIER (U8) (10W/12W OPTONS)
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
Supply voltage
3.3V for digital circuit
10V~26V for loudspeaker driver
6
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
Figure 3.2: Pin description
7
Figure 3.3: Functional Block Diagram
Table3.1: Absolute Maximum Ratings
Table3.2: Recommended Operating Conditions
B. SUBWOOFER AMPLIFIER (U9) (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.
8
Features
16/18/20/24-bits input with I2S, Left-alingment and Right-alingment 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
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
9
Figure 3.5: Functional Block Diagram
Table 3.3: Absolute Maximum Ratings
Table 3.4: Recommended Operating Conditions
C. HEADPHONE AMPLIFIER (U59)
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
Eliminates Output Capacitors
Improves Low Frequency Response
Reduces POP/Clicks
Low Noise and THD
10
Typical SNR 107dB
Typical Vn 7uVrms
Typical THD+N < 0.02%
Maximum Output Voltage Swing into 2.5k Load
2Vrms at 3.3V Supply Voltage
Single-ended Input
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 3.6: Pin description
Table 3.5: Pin functions
Table3.6: Recommended operating conditions
11
D. SUBWOOFER PREAMPLIFIER (U30)
AD22657B is used for subwoofer out, as well.
E. SCART AUDIO AMPLIFIER (U31)
AD22657B is used for scart audio amplifier, as well.
4. POWER STAGE
Figure 4.1: Power socket and options.
Power socket is used for taking voltages which are 12V, 5V and VDD_Audio. These voltages are produced
in power board. Also socket is used for giving dimming, backlight and standby signals with power board. It is
shown at figure 4.1.
12
Figure 4.2: General illustration of voltage stages on main board.
VDD_Audio goes directly to the audio side, through power socket other incoming voltages from power card
are converted several voltages, shown in figure 8.
List of the components are:
TPS54528
TPS54628
TPS54821
FDS4685
NTGS3446
APL5910
LM1117
A. TPS54528
General Description
The TPS54528 is an adaptive on-time D-CAP2 mode synchronous buck converter.The TPS54528 enables
system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low
component count, low standby current solution. The main control loop for the TPS54528 uses the D-CAP2
mode control that provides a fast transient response with no external compensation components. The adaptive
on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode
operation at light loads. Eco-mode allows the TSP54528 to maintain high efficiency during lighter load
conditions. The TPS54528 also has a proprietary circuit that enables the device to adopt to both low equivalent
series resistance (ESR)output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors.
The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V
and 6 V. The device also features an adjustable soft start time. The TPS54528 is available in the 8-pin DDA
package, and designed to operate from -40 C to 85 C.
13
Features
D-CAP2 Mode Enables Fast Transient Response
Low Output ripple and Allows Ceramic Output Capacitor
Wide VIN Input Voltage Range: 4.5 V to 18 V
Output Voltage Range: 0.76 V to 6 V
Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications- 65 mOhm (High Side)
and 36 mOhm (Low Side)
High Efficiency, less than 10 mikroAmper at shutdown
High Initial Bandgap Reference Accuracy
Adjustable Soft Start
Pre-Biased Soft Start
650-kHz Switching Frequency (fSW)
Cycle By Cycle Over Current Limit
Auto-Skip Eco-mode for High Efficiency at Light Load
Applications
Wide Range of Applications for Low Voltage System
Digital TV Power Supply
High Definition Blu-ray Disc Players
Networking Home Terminal
Digital Set Top Box(STB)
Table 4.1: Recommended operating conditions
Figure 4.3: Pin Description
14
Table 4.2: Pin functions.
B. TPS54628
General Description
The TPS54628 is an adaptive on-time D-CAP2 mode synchronous buck converter.The TPS54628 enables
system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low
component count, low standby current solution. The main control loop for the TPS54628 uses the D-CAP2
mode control that provides a fast transient response with no external compensation components. The adaptive
on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode
operation at light loads. Eco-mode allows the TSP54628 to maintain high efficiency during lighter load
conditions. The TPS54628 also has a proprietary circuit that enables the device to adopt to both low equivalent
series resistance (ESR)output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors.
The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V
and 7 V. The device also features an adjustable soft start time. The TPS54628 is available in the 8-pin DDA and
10-pin DRC packages, and is designed to operate over the ambient temperature range of -40C to 85C.
Features
D-CAP2 Mode Enables Fast Transient Response
Low Output ripple and Allows Ceramic Output Capacitor
Wide VIN Input Voltage Range: 4.5 V to 18 V
Output Voltage Range: 0.76 V to 7 V
Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications- 36 mOhm (High Side)
and 28 mOhm (Low Side)
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