CHASSIS universal (ШАСI унiверсальні) ANDERSSON LED4781FDCPVR CGV 10077437, 10077655, L26WIT10, L32WIT10 FELSON 10081153, F47CD4701 FINLUX 22FLYR910VU Service manual & schematics

SERVICE MANUAL

17MB70

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DATE VERSION CHANGE RELEASED BY

14.10.2010 V1.0 Draft Emre YILDIZILI

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İçindekiler

1. INTRODUCTION ............................................................................................................................... 5

2. TUNER .............................................................................................................................................. 6

3. AUDIO AMPLIFIER STAGES .............................................................................................................. 8

A. MAIN AMPLIFIER (TPA3110) ........................................................................................................ 8

B. LINE-OUT and HEAD-PHONE AMPLIFIER STAGE (CXA3813N) ................................................... 11

C. SUBWOOFER AMPLIFIER STAGE (TPA3112) .............................................................................. 12

4. POWER STAGE ............................................................................................................................... 14

5. MICROCONTROLLER(Broadcom) ................................................................................................... 21

6. SATELLITE RECEIVER (Broadcom) .................................................................................................. 24

7. VIDEO BACK-END PROCESSOR (Trident) ....................................................................................... 25

8. FPGA (Spartan-3E) ......................................................................................................................... 27

9. PIXELLENCE II ................................................................................................................................. 28

10. 1Gb F-die DDR2-1066 SDRAM (U41-U42-U8-U9) ...................................................................... 29

11. 32M x 16 bit DDRII Synchronous DRAM (U28-U29) .................................................................. 31

12. 4Gbit NAND Flash Memory (U35) ............................................................................................. 34

13. 128Mbit NAND Flash Memory (U17) ........................................................................................ 36

14. USB Interface ............................................................................................................................. 37

15. CI Interface ................................................................................................................................ 38

16. DVB-C Demodulator .................................................................................................................. 38

17. DVB-C/T2 Demodulator ............................................................................................................. 41

18. LOW POWER&CEC MICROCONTROLLER ................................................................................... 47

19. HDMI SWITCH ............................................................................................................................ 48

20. LNB supply and control IC ......................................................................................................... 53

21. Software Update ....................................................................................................................... 54

22. Troubleshooting ........................................................................................................................ 54

A. No Backlight Problem ............................................................................................................ 54

B. CI Module Problem ............................................................................................................... 57

C. Staying in Stand-by Mode ..................................................................................................... 58

D. IR Problem ............................................................................................................................ 59

E. Keypad Touchpad Problems.................................................................................................. 60

F. USB Problems ....................................................................................................................... 61

G. No Sound Problem ................................................................................................................ 61

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H. Standby On/Off Problem ....................................................................................................... 61

İ. No Signal Problem ................................................................................................................ 62

23. Service Menu Settings ............................................................................................................... 62

24. General Block Diagram .............................................................................................................. 67

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1. INTRODUCTION

17MB70-2 mainboard is based on Broadcom concept IC. This IC combines DVB-T COFDM
terrestrial and PAL/SECAM demodulators, HDMI receivers, a transport processor, a digital
audio processor, graphics processing, Ethernet MAC and PHY, digital processing of analog
video and audio, analog video digitizer and DAC functions, stereo high-fidelity audio DACs,
a 400-MHz dual-threaded MIP processor, and a peripheral control unit providing a variety of
television control functions. This IC also features an advanced video decoder capable of
supporting high-definition AVC, VC-1, and DVB-T MPEG-2 streams.

Main IC Features:

• Advanced multiformat decoder supporting the following:

- H.264/AVC Main and High Profile to Level 4.1 (HD), Level 3.1 (SD)

- HD/SD AVS Jizhun Profile Levels 2.0, 4.0, and 6.0

- VC-1 Advanced Profile @ Level 3, simple and main profiles

- HD/SD MPEG-2 Main Profile at Main and High levels

- MPEG still image decode

- HD DivX® 3.11/4.11/5.x/6x/Home Theater

• 3D/2D OpenGL® ES 1.0- compliant graphics core

• Integrated Video Processing:

- 3D Color management

- Digital, Analog, and Mosquito Noise Reduction

- 1080i motion adaptive deinterlacing with 3:2/2:2 pull-down

- True 10-bit video carried through system

• Dual HDMI 1.3a receivers

• Extensive audio support:

- AAC+ Level 2, AAC-HE

- Dolby® Digital, Dolby Digital Plus, Trusurround XT®

- MPEG I layers 1, 2, and 3 (MP3)

- Windows Media® and Windows Media Pro audio

- Audio DACs, input switch, and equalizer

• Ethernet MAC and PHY

• Integrated DVB-T COFDM terrestrial demodulator:

- Standards compliance: ETSI EN 300 744, Nordig Unified v1.0.3, DTG D-Book 5
compliant

- Excellent Doppler performance

- Active impulse noise suppression

• Integrated PAL/SECAM Demodulator

• PAL decoder with a 3D/2D comb

• Direct PC input support up to 1600 x 1200 UXGA

• Integrated dual-link LVDS transmitters

• Dual USB 2.0

• A 400-MHz 32-bit MIPS dual CPU with two 32-KB instruction caches
and a combined 64-KB data cache with 128-KB L2 cache

Sound system output is supplying 2x8W (10%THD) for stereo 8

Ω speakers

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Supported peripherals are:

• 1 RF input VHF I, VHF III, UHF @ 75Ohm(Common)

• 1 Side AV (CVBS, R/L_Audio)

• 2 SCART socket(Common)

• 1 YPbPr (Common)

• 1 Side S-Video(Common)

• 1 PC input(Common)

• 4 HDMI 1.3 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)

• 2 USB(Common)

• 1 Bluray/DVD(Optional)

• 1 Ethernet-RJ45 (Common)

• 1 External Touchpad(Common)

2. TUNER

FT 2112/3/8/9 are newly developed Half-NIM modules designed for both digital
(DVB-T / T2 and DTMB for terrestrial China) and analog TV reception in compliance with
the European ATV standards for analogue, as well as with the terrestrial standard ETS 300
744 for DVB-T and the new terrestrial standard ETS 302 755 for DVB-T2. It consists of a 3­band RF tuner, which receives RF signal and down-converts it to an IF frequency of 36MHz
for digital and 38.9MHz for analog IF. The analogue IF output can directly drive a SAW
filter. A digital IF Stage, which consists of one SAW filter & gain-controllable IF that offers a
sufficient output level to be connected directly to an A/D converter.

In active antenna option, the following circuit are used. ANT_CTRL pin is controlled by
microcontroller. If ANT_CTRL is low, ANT_PWR will be low. If ANT_CTRL is high,
ANT_PWR will be high. OVER_CUR_DETECT pin is a monitor for short circuit in antenna.
OVER_CUR_DETECT is low, ANT_CTRL will be low, so ANT_PWR will be low. Finally,
short circuit protection is done by circuits and microcontroller.

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Active Antenna Circuit

1.1. Features of FT2112

• Digital DVB-T T2, DTMB & analogue (48.25MHz to 863.25MHz) reception

• Single 5V supply voltage only

• Built-in 5-33V DC-DC converter

• Single power supply to the RF tuner & IF VGA amplifier section

• Bus Control switch-able RF AGC function:

a) Wide Band AGC for optimum strong signal performance

b) Conventional AGC for optimum analog reception

• RF AGC information via I2C Bus

• Tuner power standby mode via I2C Bus

• Small size (56 mm x 29 mm x 10 mm)

• I2C (SDA & SCL) bus control interface

• ROHS compliant

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1.2. Tuner Pinning

3. AUDIO AMPLIFIER STAGES

A. MAIN AMPLIFIER (TPA3110)

a. General Description

17MB70 uses TPA 3110 15-W filter-free stereo Class-D audio power amplifier for main
audio output. The TPA3110D2 is a 15-W (per channel) efficient, Class-D audio power
amplifier for driving bridged-tied stereo speakers. Advanced EMI Suppression Technology
enables the use of inexpensive ferrite bead filters at the outputs while meeting EMC
requirements. SpeakerGuard™ speaker protection circuitry includes an adjustable power
limiter and a DC detection circuit. The adjustable power limiter allows the user to set a
"virtual" voltage rail lower than the chip supply to limit the amount of current through the
speaker. The DC detect circuit measures the frequency and amplitude of the PWM signal and
shuts off the output stage if the input capacitors are damaged or shorts exist on the inputs.

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The TPA3110D2 can drive stereo speakers as low as 4
TPA3110D2, 90%, eliminates the need for an external heat sink when playing music. The
outputs are also fully protected against shorts to GND, VCC, and output-to-output. The short­circuit protection and thermal protection includes an auto-recovery feature.

b. Features

• 15-W/ch into an 8-Ω Loads at 10% THD+N From a 16-V Supply

• 10-W/ch into 8-Ω Loads at 10% THD+N From a 13-V Supply

• 30-W into a 4-Ω Mono Load at 10% THD+N From a 16-V Supply

• 90% Efficient Class-D Operation Eliminates Need for Heat Sinks

• Wide Supply Voltage Range Allows Operation from 8 V to 26 V

• Filter-Free Operation

• SpeakerGuard™ Speaker Protection Includes Adjustable Power Limiter plus DC Protection

• Flow Through Pin Out Facilitates Easy Board Layout

• Robust Pin-to-Pin Short Circuit Protection and Thermal Protection with Auto Recovery
Option

• Excellent THD+N / Pop-Free Performance

Ω. The high efficiency of the

• Four Selectable, Fixed Gain Settings

• Differential Inputs

c. Absolute Ratings

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d. Recommended Operating Conditions

e. Pin Functions

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B. LINE-OUT and HEAD-PHONE AMPLIFIER STAGE (CXA3813N)

a. Functional Block Diagram

b. Absolute Ratings

c. Recommended Operating Conditions

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d. Pin Functions

C. SUBWOOFER AMPLIFIER STAGE (TPA3112)

a. General Description

The TPA3112D1 is a 25-W efficient, Class-D audio power amplifier for driving a bridge tied
speaker. Advanced EMI Suppression Technology enables the use of inexpensive ferrite bead
filters at the outputs while meeting EMC requirements. SpeakerGuard speaker protection
system includes an adjustable power limiter and a DC detection circuit. The adjustable power
limiter allows the user to set a "virtual" voltage rail lower than the chip supply to limit the
amount of current through the speaker. The DC detect circuit measures the frequency and
amplitude of the PWM signal and shuts off the output stage if the input capacitors are
damaged or shorts exist on the inputs. The TPA3112D1 can drive a mono speaker as low as
4Ω. The high efficiency of the TPA3112D1, > 90%, eliminates the need for an external heat
sink when playing music. The outputs are fully protected against shorts to GND, VCC, and
output-to-output. The short-circuit protection and thermal protection includes an auto­recovery feature.

b. Features

• 25-W into an 8-Ω Load at < 0.1% THD+N Froma 24V Supply

• 20-W into an 4-Ω Load at 10% THD+N From a12-V Supply

• 94% Efficient Class-D Operation into 8-Ω LoadEliminates Need for Heat Sinks

• Wide Supply Voltage Range Allows Operationfrom 8 to 26 V

• Filter-Free Operation

• SpeakerGuard™ Speaker Protection IncludesAdjustable Power Limiter plus DC Protection

• Flow Through Pin Out Facilitates Easy BoardLayout

• Robust Pin-to-Pin Short Circuit Protection andThermal Protection with Auto-Recovery
Option

• Excellent THD+N/ Pop Free Performance

• Four Selectable, Fixed Gain Settings

• Differential Inputs

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c. Absolute Ratings

d. Recommended Operating Conditions

e. Pin Functions

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4. POWER STAGE

17MB70 general power managment
block diagram is shown below.
17PW26 power board is used in 32”
17MB70 TV sets.

3,3V stby, 5V stby, 3,3V, 5V, 12V,
24V and 33V can be generated by
PW26.

Below blocks are generated by step­downs and regulators on MB70
board.

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Power Blocks on MB70:

Below blocks are generated by step-downs and regulators on MB70 board.

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FAIRCHILD FAN2110 (U19-U20)

a) General Description

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MP1583 (U38)

DESCRIPTION

The MP1583 is a step-down regulator with abuilt-in internal Power MOSFET. It achieves 3A
of continuous output current over a wide input supply range with excellent load and line
regulation.
Current mode operation provides fast transient response and eases loop stabilization.

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Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. An
adjustable soft-start reduces the stress on the input source at startup. In shutdown mode the
regulator draws 20µA of supply current. The MP1583 requires a minimum number of
external components, providing a compact solution.

FEATURES

• 3A Output Current

• Programmable Soft-Start

• 100m

• Stable with Low ESR Output Ceramic Capacitors

• Up to 95% Efficiency

• 20µA Shutdown Mode

• Fixed 385KHz Frequency

• Thermal Shutdown

• Cycle-by-Cycle Over Current Protection

• Wide 4.75V to 23V Operating Input Range

• Output Adjustable from 1.22V to 21V

• Under-Voltage Lockout

Ω Internal Power MOSFET Switch

MP2012 (U39)

The MP2012 is a fully integrated, internally compensated 1.2MHz fixed frequency PWM
step-down converter. It is ideal for powering portable equipment that runs from a single cell
Lithium-Ion (Li+) Battery, with an input range from 2.7V to 6V. The MP2012 can provide up
to 1.5A of load current with output voltage as low as 0.8V. It can also operate at 100% duty

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cycle for low dropout applications. With peak current mode control and internal
compensation, the MP2012 is stable with ceramic capacitors and small inductors. Fault
condition protection includes cycle-by-cycle current limiting and thermal shutdown. MP2012
is available in the small 6-pin 3mmx3mm QFN package.

• 2.7-6V Input Operation Range

• Output Adjustable from 0.8V to VIN

µA Max Shutdown Current.

• 1

• Up to 95% Efficiency

• 100% Duty Cycle for Low Dropout Applications

• 1.2MHz Fixed Switching Frequency

• Stable with Low ESR Output Ceramic Capacitors

• Thermal Shutdown

• Cycle-by-Cycle Over Current Protection

• Short Circuit Protection

• Available in 6-pin 3x3mm QFN

LM1117 (U21-U22-U23-U24)

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5. MICROCONTROLLER(Broadcom)

BCM3556

a) General Description

The BCM3556 is the next generation of System-on-a-Chip (SoC) Digital Television (DTV)
products from Broadcom® with 1080p60 input and output capability targetedfor the EU
Market. It combines a high level of integration with best-of-class picture quality, enabling TV
manufacturers to reduce overall system cost (BOM) and improve picture quality, all with a
single SoC.

The BCM3556 combines DVB-T COFDM terrestrial and PAL/SECAM demodulators, two
DVI/HDMI receivers, a transport processor, a digital audio processor, 3D/2D graphics
processing, Ethernet MAC and PHY, digital processing of analog video and audio, analog
video digitizer and DAC functions, stereo high-fidelity audio DACs, a 400-MHz dual­threaded MIPS processor, and a peripheral control unit providing a variety of television
control functions. The BCM3556 also features an advanced video decoder
capable of supporting high-definition AVC, VC-1, and DVB-T MPEG-2 streams.

The integration of the DVB-T COFDM terrestrial demodulator reduces the overall cost of the
external tuner module, resulting in cost savings for the customer. The BCM3556also
integrates four 10-bit ADCs with integrated front-end analog muxing that accept four CVBS
inputs, three S-video inputs, three component inputs, one PC input, one full SCART input
with fast blanking, and one Sound IF (SIF) input at the same time without the requirement for
any off-chip muxing ICs. The BCM3556 offers two HDMI 1.3a receivers, a motion adaptive
deinterlacer, HD Analog Noise Reduction, and an analog video decoder with 3D comb for
PAL and Y/C separation for SECAM.

The multiformat video decoder in the BCM3556 is capable of supporting high-definition
AVC, VC-1, and DVB-T MPEG-2 streams. AVC support is up to High Profile Level 4.1.
New tools in the AVC Fidelity Range extensions are supported, including 8x8 transform and
spatial prediction modes and adaptive quantization matrix. The video decoder also supports
high-definition VC-1 (Advanced Profile Level 3, Main, and Simple profiles) and DVB­Tcompliant MPEG-2, Main Profile at Main and High Levels. The BCM3556 has an advanced
programmable audio processor capable of decoding a broad range of formats including Dolby
Digital, Dolby Digital Plus, AAC 5.1, AAC+ Level 2, AAC+ Level 4, WMA, and MPEG-1
Layer 1, 2, and 3 with simultaneous pass-through support.
The BCM3556 also supports 3D SRS Audio and includes an analog audio decoder for BTSC
and A2 formats. The BCM3556 also integrates an analog audio switch that accepts six stereo
inputs. In addition, the SoC supports SPDIF and I2S inputs. One SPDIF, two I2S, and three
analog audio outputs are available.

The SoC family also has an integrated advanced Picture Enhancement Processor (PEP) to
improve sharpening and perform picture post-processing functions (e.g., autoflesh, green
boost, black and blue stretch). The PEP engine is fully programmable and can be optimized
by the TV manufacturer to meet their respective quality requirements. Also integrated is a
video encoder for NTSC and an advanced 2D/3D graphics for OSD acceleration.

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The BCM3556 supports direct PC inputs up to UXGA 1600x1200 formats with autophase
and automode detection and supports dual LVDS outputs to support 1080p60 panels.

The BCM3556 integrates a 400-MHz 32-bit MIPS dual CPU with two 32-KB
instructioncaches and a combined 64-KB data cache with a 128-KB L2 cache, and a 32-bit
800/1066-MHz DDR2. The BCM3556 also supports an 8-bit external NAND Flash interface
and SPI Flash interface for booting. Integrated peripherals include two USB2.0 ports, three
UARTs, controllers for SPI, BSC, keypad, LED and IR Tx/Rx, and an Ethernet port with
MAC and integrated PHY.

The BCM3556 is available in several package options: WXGA and FHD, PIP and non-PIP, or
MPEG-only and combined AVC/MPEG-2.

b) Features

• Advanced multiformat decoder supporting the following:

- H.264/AVC Main and High Profile to Level 4.1 (HD), Level 3.1 (SD)

- HD/SD AVS Jizhun Profile Levels 2.0, 4.0, and 6.0

- VC-1 Advanced Profile @ Level 3, simple and main profiles

- HD/SD MPEG-2 Main Profile at Main and High levels

- MPEG still image decode

- HD DivX® 3.11/4.11/5.x/6x/Home Theater

• 3D/2D OpenGL® ES 1.0- compliant graphics core

• Integrated Video Processing:

- 3D Color management

- Digital, Analog, and Mosquito Noise Reduction

- 1080i motion adaptive deinterlacing with 3:2/2:2 pull-down

- True 10-bit video carried through system

• Dual HDMI 1.3a receivers

• Extensive audio support:

- AAC+ Level 2, AAC-HE

- Dolby® Digital, Dolby Digital Plus, Trusurround XT®

- MPEG I layers 1, 2, and 3 (MP3)

- Windows Media® and Windows Media Pro audio

- Audio DACs, input switch, and equalizer

• Ethernet MAC and PHY

• Integrated DVB-T COFDM terrestrial demodulator:

- Standards compliance: ETSI EN 300 744, Nordig Unified v1.0.3, DTG D-Book 5
compliant

- Excellent Doppler performance

- Active impulse noise suppression

• Integrated PAL/SECAM Demodulator

• PAL decoder with a 3D/2D comb

• Direct PC input support up to 1600 x 1200 UXGA

• Integrated dual-link LVDS transmitters

• Dual USB 2.0

• A 400-MHz 32-bit MIPS dual CPU with two 32-KB instruction caches and a combined 64
KB data cache with 128-KB L2 cache

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c) BCM3556 - Block Diagram

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6. SATELLITE RECEIVER (Broadcom)

BCM4505

a) General Description

The BCM4505 is a fully integrated satellite receiver single-chip solution targeted at
multituner advanced modulation satellite receiver systems and ideally suited for new
generation satellite receivers and integrated multifunction Home Media Centers. The
BCM4505 integrates a CMOS tuner and advanced modulation decoder supporting DVB-S2
Broadcast, DVB-S, DIRECTV, and 8PSK Turbo applications. The highly integrated tuner
section is based on existing volume-production Broadcom technologies and a direct­conversion technology to reduce external components and increase performance.The
BCM4505 is designed to support the full 1-45 Msps DVB operating range with support for
250 to 2150 MHz input frequencies. It contains two 8-bit A/D converters, all-digital variable­rate QPSK/8PSK receivers, an advanced modulation LDPC/BCH and Turbo FEC decoder,
and a DVB-S compliant FEC decoder. All required RAM is integrated and all required clocks
are generated on-chip from a single reference crystal. The baseband IQ analog waveforms
from the tuner section are sampled by the integrated 8-bit A/D converters and resampled by
the integrated interpolative digital filter banks.

Optimized soft decisions are then fed into either a DVB-S-compliant FEC decoder, or an
advanced-modulation DVB-S2 LDPC/BCH or Turbo decoder. The final error-corrected
output is delivered in MPEG-2 transport format. The output clock is generated by an on-chip
PLL for low-jitter operation and glueless integration with Broadcom's high definition audio
video subsystems, such as the BCM7401 and the BCM7402. The communication link
sections include an on-chip microcontroller for all system configuration, acquisition, control,
monitoring and diagnostics functions, as well as an integrated DiSEqC 2.x controller for 2­way communication with an LNB, and a single FSK transceiver for communication with
ODUs that support multiple LNB configurations over a single coax connection.The
BCM94505 reference design is available for easy system design and testing using the
BCM4505 advanced modulation receiver chip.

b) Features

• Dual direct conversion satellite tuners

• Direct conversion architecture in standard CMOS process

• Supports QPSK and 8PSK demodulation

• Input frequency range: 250 to 2150 MHz

• Integrated 8-bit A/D converters

• Integrated advanced demodulation decoder

• DVB-S2 Broadcast, DVB-S, 8PSK Turbo

• Data Rates:

• DVB-S: 1-45 Msps

• DVB-S2: 1-45 Msps

• 8PSK Turbo: 2-30 Msps

• Code Rates: 1/4, 1/3, 2/5, 1/2,3/5, 2/3, 3/4 , 5/6, 7/8, 8/9, 9/10

• Integrated DiSEqC 2.x transceivers

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• On-chip microcontroller for acquisition and tracking

• 128-pin epLQFP package

c) BCM4505 - Block Diagram

7. VIDEO BACK-END PROCESSOR (Trident)

PNX5120EH

a) General Description

The PNX5120EH is an advanced video picture improvement IC and the world's first solution,
NXP’s Motion Accurate Picture Processing (MAPP), to combine movie judder cancellation,
motion sharpness and vivid color management in a single device. Aimed primarily at digital
and hybrid flat panel televisions in the mid-end and high-end European,Asian and U.S.
consumer markets, it complies with relevant industry standards.LCD TVs represent a huge
and growing market, and the PNX5120EH offers manufacturers a unique combination of
richer color, dynamic motion, sensational sharpness, deep contrast, and full HD resolution.
Moreover, you can easily tailor that balance via the Automatic Picture Control tool (delivered
by NXP as part of a separate System Design-in Toolkit) to meet your own image quality
requirements.

b) Features

• Single 27 MHz crystal clock input for all internal generated clocks

• Three TriMedia TM3271 400 MHz, 32-bit VLIW media-processing cores with:

o five instructions per clock cycle
o 32 kB instruction cache
o 64 kB data cache

• Integrated DDR2 SDRAM controller, 32-bit wide, up to 366 MHz clock (DDR2-800),

supporting 32 MB, 64 MB, 128 MB, and 256 MB single-rank memory configurations

• Separately licensed, the PNX5120EH comes with an easy-to-use System Design-in

Toolkit (SDT), which includes the NXP Picture Quality Tuning Tool, firmware image
containing the NXP proprietary Picture Improvement features, and GPL-licensed U­Boot Bootloader software.

25

• DDR2-400 to DDR2-800 data rates supported

• PCI/XIO (V2.2) operating at 33 MHz

• Two UARTs

• Two I2C DMA interfaces (100 kHz/400 kHz); the second I2C can be used as a

debugging interface

• 16 GPIO pins

• Five PWM outputs

• Support for 8-bit NOR flash up to 64 MB

• Support for 8-bit/16-bit NAND flash up to 128 MB

c) PNX5120EH - Block Diagram

26

8. FPGA (Spartan-3E)

XC3S1200E

a) General Description

The Spartan™-3E family of Field-Programmable Gate Arrays (FPGAs) is specifically
designed to meet the needs of high volume, cost-sensitive consumer electronic applications.
The five-member family offers densities ranging from 100,000 to 1.6 million system gates,
The Spartan-3E family builds on the success of the earlier Spartan-3 family by increasing the
amount of logic per I/O, significantly reducing the cost per logic cell. New features
improve system performance and reduce the cost of configuration. These Spartan-3E
enhancements, combined with advanced 90 nm process technology, deliver more
functionality and bandwidth per dollar than was previously possible, setting new standards in
the programmable logic industry. Because of their exceptionally low cost, Spartan-3E FPGAs
are ideally suited to a wide range of consumer electronics applications, including broadband
access, home networking, display/projection, and digital television equipment. The Spartan­3E family is a superior alternative to mask programmed ASICs. FPGAs avoid the high initial
cost, the lengthy development cycles, and the inherent inflexibility of conventional ASICs.
Also, FPGA programmability permits design upgrades in the field with no hardware
replacement necessary, an impossibility with ASICs.

b) Features

• Very low cost, high-performance logic solution for high-volume, consumer-oriented
applications

• Proven advanced 90-nanometer process technology

• Multi-voltage, multi-standard SelectIO™ interface pins

- Up to 376 I/O pins or 156 differential signal pairs

- LVCMOS, LVTTL, HSTL, and SSTL single-ended signal standards

- 3.3V, 2.5V, 1.8V, 1.5V, and 1.2V signaling

- 622+ Mb/s data transfer rate per I/O

- True LVDS, RSDS, mini-LVDS, differential HSTL/SSTL differential I/O

- Enhanced Double Data Rate (DDR) support

- DDR SDRAM support up to 333 Mb/s

• Abundant, flexible logic resources

- Densities up to 33,192 logic cells, including optional shift register or distributed
RAM support

- Efficient wide multiplexers, wide logic

- Fast look-ahead carry logic

- Enhanced 18 x 18 multipliers with optional pipeline

- IEEE 1149.1/1532 JTAG programming/debug port

• Hierarchical SelectRAM™ memory architecture

- Up to 648 Kbits of fast block RAM

- Up to 231 Kbits of efficient distributed RAM

• Up to eight Digital Clock Managers (DCMs)

- Clock skew elimination (delay locked loop)

- Frequency synthesis, multiplication, division

- High-resolution phase shifting

- Wide frequency range (5 MHz to over 300 MHz)

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• Eight global clocks plus eight additional clocks per each half of device, plus abundant low­skew routing

• Configuration interface to industry-standard PROMs

- Low-cost, space-saving SPI serial Flash PROM

- x8 or x8/x16 parallel NOR Flash PROM

- Low-cost Xilinx Platform Flash with JTAG

• Complete Xilinx ISE™ and WebPACK™ development system support

• MicroBlaze™ and PicoBlaze™ embedded processor cores

• Fully compliant 32-/64-bit 33 MHz PCI support

• Low-cost QFP and BGA packaging options

- Common footprints support easy density migration

- Pb-free packaging options

9. PIXELLENCE II

a) General Description

PixellenceII IC is a real-time image processing chip. It is mainly a co-processor sitting at the
back of the video ASSP (i.e. concept IC) in a typical TV chassis. PixellenceII gets the picture
that will otherwise be transmitted to the panel in RGB format and applies Vestel patented
image and video processing algorithms to further enhance the picture. After processing, the
video is transmitted to the 50/60 Hz panel serially through LVDS links and in RGB format.

PixellenceII IC supports Full HD (1920x1080) and WXGA (1366x768) resolutions with 10­bit or 8-bit processing modes. PixellenceII is also configurable to other common resolutions
such as 1920x1280, 1680x1050, 1440x900, 1280x1024, 1024x768, 1920x1200, 1600x900.

The PixellenceII IC incorporates following Vestel patented algorithms, functions and
interfaces:

Algorithms:

• Skin-tone detection and correction

• Color Saturation

• Dynamic Contrast Enhancement

• Sharpness & CTI

• De-ringing

• De-blocking

• Temporal Noise Reduction

• Spatial Noise Reduction

• Video Analysis Block

Functions:

• Color Space Conversion

• Color Up-sampling, Color Down-sampling

• Gamma Correction

• OSD Detection Logic

• Display Mode Logic

• Logo

28

Interfaces:

• I2C

• JTAG

• Dual-Link LVDS Receiver with Spread Spectrum clocking tolerance

• Dual-Link LVDS Transmitter with Spread Spectrum clocking tolerance

• Miscellaneous function signals (8-bit GPO port)

b) Block Diagram

Main blocks of Pix2Frame are LVDS Rx, Tx and pix2_top modules. Major blocks of
pix2_top module are PixellenceII Core video enhancement engine, I2C Slave interface and
embedded Dynamic RAM (eDRAM, 64Mbit) macro.

10. 1Gb F-die DDR2-1066 SDRAM (U41-U42-U8-U9)

Samsung K4T1G084QF

a) Key Features

• JEDEC standard VDD = 1.8V ± 0.1V Power Supply

•VDDQ = 1.8V ± 0.1V

• 533MHz fCK for 1066Mb/sec/pin

• 8 Banks

• Posted CAS

• Programmable CAS Latency: 4, 5, 6, 7

• Programmable Additive Latency: 3, 4, 5. 6

29

• Write Latency(WL) = Read Latency(RL) -1

• Burst Length: 4 , 8(Interleave/nibble sequential)

• Programmable Sequential / Interleave Burst Mode

• Bi-directional Differential Data-Strobe (Single-ended data-strobe is an optional feature)

• Off-Chip Driver(OCD) Impedance Adjustment

• On Die Termination

• Special Function Support

- PASR(Partial Array Self Refresh)

- 50ohm ODT

- High Temperature Self-Refresh rate enable

• Average Refresh Period 7.8us at lower than TCASE 85°C, 3.9us at 85°C < TCASE < 95 °C

• All of products are Lead-free, Halogen-free, and RoHS compliant

The 1Gb DDR2 SDRAM is organized as a 16Mbit x 8 I/Os x 8 banks, 8Mbit x 16 I/Os x 8
banks device. This synchronous device achieves high speed double-data-rate transfer rates of
up to 1066Mb/sec/pin (DDR2-1066) for general applications.

The chip is designed to comply with the following key DDR2 SDRAM features such as
posted CAS with additive latency, write latency = read latency - 1, Off-Chip Driver(OCD)
impedance adjustment and On Die Termination. All of the control and address inputs are
synchronized with a pair of externally supplied differential clocks. Inputs are latched at the
crosspoint of differential clocks (CK rising and CK falling). All I/Os are synchronized with a
pair of bidirectional strobes (DQS and DQS) in a source synchronous fashion. The address
bus is used to convey row, column, and bank address information in a RAS/CAS
multiplexing style. For example, 1Gb(x8) device receive 14/10/3 addressing.

The 1Gb DDR2 device operates with a single 1.8V ± 0.1V power supply and 1.8V ± 0.1V
VDDQ.

The 1Gb DDR2 device is available in 60ball FBGA(x8) and 84ball FBGA(x16).

b) Pinning

30

c) Electrical Characteristics

11. 32M x 16 bit DDRII Synchronous DRAM (U28-U29)

EtronTech EM68B16CWPA

a) Key Features

• JEDEC Standard Compliant

• JEDEC standard 1.8V I/O (SSTL_18-compatible)

• Power supplies: VDD & VDDQ = +1.8V ± 0.1V

• Operating temperatue: 0 – 85 °C

• Supports JEDEC clock jitter specification

• Fully synchronous operation

• Fast clock rate: 333/400MHz

• Differential Clock, CK & CK#

• Bidirectional single/differential data strobe

-DQS & DQS#

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• 4 internal banks for concurrent operation

• 4-bit prefetch architecture

• Internal pipeline architecture

• Precharge & active power down

• Programmable Mode & Extended Mode registers

• Posted CAS# additive latency (AL): 0, 1, 2, 3, 4, 5

• WRITE latency = READ latency - 1 tCK

• Burst lengths: 4 or 8

• Burst type: Sequential / Interleave

• DLL enable/disable

• Off-Chip Driver (OCD)

-Impedance Adjustment

-Adjustable data-output drive strength

• On-die termination (ODT)

• RoHS compliant

• Auto Refresh and Self Refresh

• 8192 refresh cycles / 64ms

• Package: 84-ball 10x12.5x1.2mm (max) FBGA

- Pb and Halogen Free

The EM68B16C is a high-speed CMOS Double-Data-Rate-Two (DDR2), synchronous
dynamic random-access memory (SDRAM) containing 512 Mbits in a 16-bit wide data I/Os.
It is internally configured as a quad bank DRAM, 4 banks x 8Mb addresses x 16 I/Os The
device is designed to comply with DDR2 DRAM key features such as posted CAS# with
additive latency, Write latency = Read latency -1, Off-Chip Driver (OCD) impedance
adjustment, and On Die Termination(ODT). All of the control and address inputs are
synchronized with a pair of externally supplied differential clocks. Inputs are latched at the
cross point of differential clocks (CK rising and CK# falling) All I/Os are synchronized with a
pair of bidirectional strobes (DQS and DQS#) in a source synchronous fashion. The address
bus is used to convey row, column, and bank address information in RAS #, CAS#
multiplexing style. Accesses begin with the registration of a Bank Activate command, and
then it is followed by a Read or Write command. Read and write accesses to the DDR2
SDRAM are 4 or 8-bit burst oriented; accesses start at a selected location and continue for a
programmed number of locations in a programmed sequence. Operating the four memory
banks in an interleaved fashion allows random access operation to occur at a higher rate than
is possible with standard DRAMs. An auto precharge function may be enabled to provide a
self-timed row precharge that is initiated at the end of the burst sequence. A sequential and
gapless data rate is possible depending on burst length, CAS# latency, and speed grade of the
device.

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b) Pinning

33

12. 4Gbit NAND Flash Memory (U35)

ST NAND04G-B2D

a) Key Features

■ High density NAND Flash Memory
– Up to 8 Gbit memory array
– Cost-effective solution for mass storage
applications

■ NAND interface
– x8 or 16x bus width
– Multiplexed address/data

■ Supply voltage: 1.8 V or 3.0 V device

■ Page size

– x8 device: (2048 + 64 spare) bytes
– x16 device: (1024 + 32 spare) words

■ Block size
– x8 device: (128K + 4 K spare) bytes
– x16 device: (64K + 2 K spare) words

■ Multiplane architecture
– Array split into two independent planes
– Program/erase operations can be
performed on both planes at the same time

■ Page read/program
– Random access: 25 µs (max)
– Sequential access: 25 ns (min)
– Page program time: 200 µs (typ)
– Multiplane page program time (2 pages):
200 µs (typ)

■ Copy back program with automatic error
detection code (EDC)

■ Cache read mode

■ Fast block erase

– Block erase time: 1.5 ms (typ)
– Multiblock erase time (2 blocks):

1.5 ms (typ)

■ Status Register

■ Electronic signature

■ Chip Enable ‘don’t care’

■ Serial number option

■ High density NAND Flash Memory

– Up to 8 Gbit memory array
– Cost-effective solution for mass storage
applications

■ NAND interface
– x8 or 16x bus width
– Multiplexed address/data

■ Supply voltage: 1.8 V or 3.0 V device

■ Page size

– x8 device: (2048 + 64 spare) bytes
– x16 device: (1024 + 32 spare) words

■ Block size
– x8 device: (128K + 4 K spare) bytes
– x16 device: (64K + 2 K spare) words

■ Multiplane architecture
– Array split into two independent planes
– Program/erase operations can be
performed on both planes at the same time

■ Page read/program
– Random access: 25 µs (max)
– Sequential access: 25 ns (min)
– Page program time: 200 µs (typ)
– Multiplane page program time (2 pages):
200 µs (typ)

■ Copy back program with automatic error
detection code (EDC)

■ Cache read mode

■ Fast block erase

– Block erase time: 1.5 ms (typ)
– Multiblock erase time (2 blocks):

1.5 ms (typ)

■ Status Register

■ Electronic signature

■ Chip Enable ‘don’t care’

■ Serial number option

34

b) Pinning

35

13. 128Mbit NAND Flash Memory (U17)

ST NAND128-A

a) Key Features

■ HIGH DENSITY NAND FLASH
MEMORIES
– Up to 1 Gbit memory array
– Up to 32 Mbit spare area
– Cost effective solutions for mass storage
applications

■ NAND INTERFACE
– x8 or x16 bus width
– Multiplexed Address/ Data
– Pinout compatibility for all densities

■ SUPPLY VOLTAGE
– 1.8V device: VDD = 1.7 to 1.95V
– 3.0V device: VDD = 2.7 to 3.6V

■ PAGE SIZE
– x8 device: (512 + 16 spare) Bytes
– x16 device: (256 + 8 spare) Words

■ BLOCK SIZE
– x8 device: (16K + 512 spare) Bytes
– x16 device: (8K + 256 spare) Words

■ PAGE READ / PROGRAM
– Random access: 12µs (max)
– Sequential access: 50ns (min)
– Page program time: 200µs (typ)

■ COPY BACK PROGRAM MODE
– Fast page copy without external
buffering

b) Pinning

■ FAST BLOCK ERASE
– Block erase time: 2ms (Typ)

■ STATUS REGISTER

■ ELECTRONIC SIGNATURE

■ CHIP ENABLE ‘DON’T CARE’

OPTION
– Simple interface with microcontroller

■ SERIAL NUMBER OPTION

■ HARDWARE DATA PROTECTION

– Program/Erase locked during Power
Transitions

■ DATA INTEGRITY
– 100,000 Program/Erase cycles
– 10 years Data Retention

■ RoHS COMPLIANCE
– Lead-Free Components are Compliant
with the RoHS Directive

■ DEVELOPMENT TOOLS
– Error Correction Code software and
hardware models
– Bad Blocks Management and Wear
Leveling algorithms
– File System OS Native reference
software
– Hardware simulation models

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14. USB Interface

USB ports are directly connected concept IC, BCM 3556.

USB ciecuit has 2 main parts:

• Protection IC (U4)

• Over Curent Protection IC (U108-U109)

37

15. CI Interface

17MB70 Digital CI ve Smart Card Interface Block diagram:

16. DVB-C Demodulator

Mstar MSB122C

a) Key Features

38

b) Block Diagram

c) Pinning

39

40

17. DVB-C/T2 Demodulator

Sony CXD2820R

a) Key Features

DESCRIPTION

The Sony CXD2820R is a combined DVB-T2, DVB-T and DVB-C demodulator that
conforms to the ETSI EN 302-755 (second generation Terrestrial) ETSI EN 300-744
(Terrestrial) and ETSI EN 300-429 (Cable) standards.

The CXD2820R is a DVB-T2 demodulator offering class-leading performance, optimised
BOM requiring no external memory and low processor overhead. It includes a highly
integrated dual-core DVB-T and DVB-C demodulator which complies with all relevant
European performance standards.

FEATURES DVB-T2

• Supports all DVB-T2 modes, including

• Single and multiple-PLPs

• SISO and MISO transmission

• Simple API

• Fully-automatic acquisition

• Fully-automatic L1-signalling decoding

• Automatic guard-interval detection

• Automatically-calculated constant-rate TS output (using L1
signalling and ISSY)

• Acquisition range ±857kHz

• Stream processor for automatic common- and data-PLP combination

• Null-packet insertion

• Access to channel echo profile and constellation via I2C

FEATURES DVB-C

• Wide symbol range, 0.7 to 7.2Msym/s

• Integrated matched filter 0.15 roll-off factor

• Auto Acquisition controller with fast re-acquisition mode, 15ms typ.

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• Programmable acquisition range ±500kHz

• 2.8us echo cancellation at 7.2Msym/s

• Low impl. loss 0.4dB @ 64QAM and <1.0dB @ 256QAM typ.

• Enhanced channel scanning performance through improved rejection of non-digital signals

• Access to channel SNR, constellation data and dynamic equaliser tap values via I2C

APPLICATIONS

• Set Top Boxes

• IDTV with Digital only or Hybrid Tuner Support

• PC TV

• PVRs and recordable DVD players

• Test equipment

GENERAL FEATURES

• Single, 41MHz crystal (can be shared with CXD2813R analogue demod IC)

• High performance differential signal ADC

• RF power level monitor ADC

• Low IF and high IF (36MHz) mode input

• Fast 400kHz I2C compatible bus interface

• Quiet I2C interface for dedicated tuner control

• Automatic IF AGC and optional programmable
RF AGC/GPIO functions

• Configurable parallel and serial MPEG-2 TS outputs with smoothing buffer

• 3.3V, 2.5V, 1.2V supplies

• Temperature range -20°C to +85°C

• 64 pin exposed-pad LQFP 10mm x 10mm package

• Supplied with full reference design, including software driver, PCB schematic/layouts, GUI
and documentation

b) Block Diagram

42

c) Pinning

43

44

45

46

18. LOW POWER&CEC MICROCONTROLLER

NEC uPD78F0503

Pinning

47

CEC Circuit Design for CEC option:

19. HDMI SWITCH

Silicon Image SiI9287B

a) Key Features

x Four-input, single-output HDMI port processor
x Improved ESD protection on all signals connected to HDMI connector
x Integrated TMDS receiver and transmitter cores capable of receiving and transmitting at

2.25 Gbps:
x InstaPort™ viewing technology
x MHL support
x Supports video resolutions up to 1080p, 60 Hz, 12­bit or 720p/1080i, 120 Hz, 12-bit
x Built-in adaptive equalizer provides long cable support even at Deep Color resolutions,
enabling the SiI9287B device to work with noisy signals and many sources, making the sink
devices highly interoperable
x Receiver fully complies with DVI 1.0, HDCP 1.3 and HDMI 1.3a specifications.

48

b) Block Diagram

49

c) Pinning

50

51

52

20. LNB supply and control IC

ST LNBH23L

a) Key Features

■ Complete interface between LNB and I²C bus

■ Built-in DC-DC converter for single 12 V supply operation and high efficiency (typ. 93%

@0.5 A)

■ Selectable output current limit by external resistor

■ Compliant with main satellite receivers output voltage specification

■ Auxiliary modulation input (EXTM pin) facilitates DiSEqC™ 1.X encoding

■ Accurate built-in 22 kHz tone generator suits widely accepted standards

■ Low-drop post regulator and high efficiency step-up PWM with integrated power NMOS

allow low power losses

■ Overload and over-temperature internal protections with I²C diagnostic bits

■ LNB short circuit dynamic protection

■ +/- 4 kV ESD tolerant on output power pins

Applications

■ STB satellite receivers

■ TV satellite receivers

■ PC card satellite receivers

Description
Intended for analog and digital satellite receivers, the LNBH23L is a monolithic voltage
regulator and interface IC, assembled in QFN32 5 x 5 specifically designed to provide the 13 /
18 V power supply and the 22 kHz tone signalling to the LNB down-converter in the antenna
dish or to the multi-switch box. In this application field, it offers a complete solution with
extremely low component count, low power dissipation together with simple design and I²C
standard interfacing.

53

b) Block Diagram

21. Software Update

In MB70 project you can update the main IC software by using USB ports. You can find the
SW update procedure below.

1. Software files should copy directly inside of a flash memory(not in a folder).

2. Put flash memory to the tv when tv is powered off.

3. Power on the and wait. TV will power-up itself.

4. If First Time Installition screen comes, it means software update procedure is succesful.

5. You can check the SW release name from service menu.

22. Troubleshooting

A. No Backlight Problem

Problem: If TV is working, led is normal and there is no picture and backlight on the panel.

Possible couses: Backlight pin, dimming pin, backlight supply, stby on/off pin

54

BACKLIGHT_ON/OFF pin should be high when the backlight is ON. R185 must be low
when the backlight is OFF. If it is a problem, please check Q131 and the panel cables.

55

Dimming pin should be high or square wave in open position. If it is low, please check S32
for BRCM side and panel or power cables, connectors.

STBY_ON/OFF_NOT should be high for standby condition, please check R203.

56

B. CI Module Problem

Problem: CI is not working when CI module inserted.

Possible couses: Supply, suply control pin, detect pins, mechanical positions of pins.

• CI supply should be 5V when CI module inserted. If it is not 5V please check

CI_PWR_CTRL, this pin should be low.

• Please check mechanical position of CI module. Is it inserted properly or not?

• Detect ports should be low. If it is not low please check CI connector pins, CI module

pins.

57

C. Staying in Stand-by Mode

Problem: Staying in stand-by mode, no other operation

This problem indicates a short on Vcc voltages. Protect pin should be logic high while normal
operation. When there is a short circuit protect pin will be logic low. If you detect logic low
on protect pin, unplug the TV set and control voltage points with a multimeter to find the
shorted voltage to ground.

58

D. IR Problem

Problem: LED or IR not working

Check LED card supply on MB70 chasis.

59

E. Keypad Touchpad Problems

Problem: Keypad or Touchpad is not working

Check keypad supply on MB70.

60

F. USB Problems

Problem: USB is not working or no USB Detection.

Check USB Supply, It should be nearly 5V. Also USB Enable should be logic high.

G. No Sound Problem

Problem: No audio at main TV speaker outputs.

Check supply voltages of VDD_AUDIO, 8V_VCC and 12V_VCC with a voltage-meter.
There may be a problem in headphone connector or headphone detect circuit (when
headphone is connected, speakers are automatically muted). Measure voltage at HP_DETECT
pin, it should be 3.3v.

H. Standby On/Off Problem

Problem: Device can not boot, TV hangs in standby mode.

There may be a problem about power supply. Check main supplies with a voltage-meter. Also
there may be a problem about SW. Try to update TV with latest SW. Additionally it is good

61

to check SW printouts via Teraterm. These printouts may give a clue about the problem. You
can use Scart-1 for terraterm connection.

I. No Signal Problem

Problem: No signal in TV mode.

Check tuner supply voltage; 5V_TUN. Check tuner options are correctly set in Service menu.
Check AGC voltage at RF_AGC pin of tuner.

23. Service Menu Settings

In order to reach service menu, First Press “MENU” buton, then write “4725” by uisng
remote controller.

You can see the service menu main screen below. You can check SW releases by using this
menu. In addition, you can make changes on video, audio etc. by using video settings, audio
settings titles.

62

Service Menu Main Screen

63

Video Settings

64

Audio Settings

Options-1 Menu

65

Options-2 Menu

Tuner Settings Menu

66

Source Settings Menu

Diagnostic Menu

24. General Block Diagram

67

68