Text preview for : Vestel+17MB62-1.pdf part of Vestel 17MB62 Service manual + schematic for Vestel MB62 boards
Back to : Vestel+17MB62-1.pdf | Home
TABLE OF CONTENTS
1. INTRODUCTION...................................................................................................................... 5
1.1. General Block Diagram.................................................................................................. 6
1.2. MB62 Placement of Blocks............................................................................................ 7
1. TUNER(TU3)............................................................................................................................. 8
1.1. General description of Sony RE216:.............................................................................. 8
2. AUDIO AMPLIFIER STAGE WITH AZAD2102(U163, U164) ........................................... 10
2.1. General Description...................................................................................................... 10
2.2. Features ........................................................................................................................ 11
2.3. Absolute Ratings .......................................................................................................... 12
2.3.1. Electrical Characteristics.......................................................................................... 12
2.3.2. Operating Specifications .......................................................................................... 13
2.4. Pinning ......................................................................................................................... 14
3. AUDIO AMPLIFIER STAGE WITH TPA3113(U168) ......................................................... 14
3.1. General Description...................................................................................................... 14
3.2. Features ........................................................................................................................ 15
3.3. Absolute Ratings .......................................................................................................... 15
3.3.1. Electrical Characteristics.......................................................................................... 15
3.3.2. Operating Specifications .......................................................................................... 16
3.4. Pinning ......................................................................................................................... 16
4. POWER STAGE ...................................................................................................................... 17
4.1. Power Management...................................................................................................... 20
5. MICROCONTROLLER MSTAR(U5) ................................................................................. 22
5.1. Description ................................................................................................................... 22
MSD9WB9PT-2 (Main IC) (U5) ................................................................................................. 22
5.2. MSTAR Block Diagram............................................................................................... 26
5.3. Reset Circuit ................................................................................................................. 27
6. CI INTERFACE ....................................................................................................................... 27
CI Interface Power Switch: ...................................................................................................... 27
Pinning: .....................................................................................Error! Bookmark not defined.
7. USB INTERFACE ................................................................................................................... 28
8. DDR2 SDRAM K4T1G164QF (U155) ............................................................................... 29
Description: .................................................................................................................................. 29
Features: ................................................................................................................................... 29
Pinning: .................................................................................................................................... 30
9. SCALER AND LVDS SOCKETS........................................................................................... 31
9.1. LVDS sockets Block Diagram ..................................................................................... 31
9.2. Panel Supply Switch Circuit ........................................................................................ 31
10. SPI FLASH MEMORY - MX25L1005 (U158)................................................................... 32
10.1. General Description...................................................................................................... 32
10.2. Features ........................................................................................................................ 32
10.3. Absolute Maximum Ratings......................................................................................... 33
10.4. Pinning ......................................................................................................................... 33
11. NAND FLASH MEMORY NAND512XXA2C (U162) .................................................. 34
11.1. General Description...................................................................................................... 34
11.2. Features ........................................................................................................................ 34
11.3. Pinning ......................................................................................................................... 35
12. LNBH23L (U6) ................................................................................................................ 36
Description: .................................................................................................................................. 36
Features: ................................................................................................................................... 36
Complete interface between LNB and I²C bus................................................................. 36
Built-in DC-DC converter for single 12 V supply operation and high efficiency (typ.
93% @ 0.5 A)........................................................................................................................... 36
Selectable output current limit by external resistor.......................................................... 36
Compliant with main satellite receivers output voltage specification.............................. 36
Auxiliary modulation input (EXTM pin) facilitates DiSEqCTM 1.X encoding................ 36
Accurate built-in 22 kHz tone generator suits widely accepted standards....................... 36
Low-drop post regulator and high efficiency step-up PWM with integrated power NMOS
allow low power losses ............................................................................................................ 36
Overload and over-temperature internal protections with I²C diagnostic bits ................. 36
LNB short circuit dynamic protection.............................................................................. 36
+/- 4 kV ESD tolerant on output power pins.................................................................... 36
13. LM1117(U175, U180, U181)............................................................................................... 40
13.1. General Description...................................................................................................... 40
13.2. Features ........................................................................................................................ 40
13.3. Applications ................................................................................................................. 40
13.4. Absolute Maximum Ratings......................................................................................... 40
13.5. Pinning ......................................................................................................................... 41
14. MP2012 (U176).................................................................................................................... 41
14.1. General Description...................................................................................................... 41
14.2. Features ........................................................................................................................ 41
14.3. Pinning ......................................................................................................................... 41
15. RTA8283A (U23, U173)...................................................................................................... 42
15.1. General Description...................................................................................................... 42
15.2. Features ........................................................................................................................ 42
15.3. Pinning ......................................................................................................................... 42
16. MP1583 (U174).................................................................................................................... 43
16.1. General Description...................................................................................................... 43
16.2. Features ........................................................................................................................ 43
16.3. Pinning ......................................................................................................................... 44
17. FDC642 ................................................................................................................................ 44
17.1. General Description...................................................................................................... 44
17.2. Features ........................................................................................................................ 44
17.3. Pinning ......................................................................................................................... 45
18. FDC604P.............................................................................................................................. 45
18.1. General Description...................................................................................................... 45
18.2. Features ........................................................................................................................ 45
18.3. Pinning ......................................................................................................................... 45
19. CONNECTORS ................................................................................................................... 46
19.1. SCART (SC1) .............................................................................................................. 46
19.2. HDMI (CN707,CN708) ............................................................................................... 46
19.3. VGA (CN711) .............................................................................................................. 47
20. SERVICE MENU SETTINGS............................................................................................. 48
20.1. Video Settings .............................................................................................................. 49
20.2. Audio Settings .............................................................................................................. 50
20.3. Options ......................................................................................................................... 51
20.4. Tuning Settings ............................................................................................................ 53
20.5. Source Settings ............................................................................................................. 54
20.6. Diagnostic..................................................................................................................... 55
20.7. USB Operations............................................................................................................ 55
21. SOFTWARE UPDATE........................................................................................................ 56
22. TROUBLESHOOTING ....................................................................................................... 57
22.1. No Backlight Problem .................................................................................................. 57
22.2. CI Module Problem...................................................................................................... 58
22.3. Led Blinking Problem .................................................................................................. 60
22.4. IR Problem ................................................................................................................... 60
22.5. Keypad Touchpad Problems ........................................................................................ 61
22.6. USB Problems .............................................................................................................. 62
22.7. No Sound Problem ....................................................................................................... 62
22.8. No Sound Problem at Headphone ................................................................................ 63
22.9. Standby On/Off Problem.............................................................................................. 63
DVD Problems ......................................................................................................................... 64
22.10. No Signal Problem ................................................................................................... 65
1. INTRODUCTION
17MB62 mainboard is driven by MStar SOC. This IC is capable of handling Video and
audio processing, Scaling-Display processing, 3D comb filter, OSD and text processing,
LVDS transmitting, channel and MPEG2/4 decoding, integrated DVB-T/C demodulator
and media center functionality.
TV supports PAL, SECAM, NTSC colour standards and multiple transmission standards
as B/G, D/K, I/I', and L/L' including German and NICAM stereo. Also DVB T, DVB-C are
supported internal demoulators of Mstar IC and DVB-S/S2 is supported with externall
demodulator.
Sound system output is supplying max. 2x2,5W ( less 10%THD at max output) with 4
speakers or 2x6W for stereo 8 speakers.
Supported peripherals are:
1 RF input VHF I, VHF III, UHF @ 75Ohm(Common)
1 Side AV (CVBS, R/L_Audio)
1 SCART socket(Common)
1 YPbPr (Optional)
1 PC input(Common)
2 HDMI 1.3 input(1 HDMI input is common, 1 input is optional)
1 S/PDIF output(Optional)
1 Headphone(Optional)
1 Common interface(Common)
1 USB(Common)
1 DVD(Optional)
1 On-board Keypad(Optional)
1 External Keypad(Optional)
1 External TouchPad(Optional)
1.1. General Block Diagram
1.2. MB62 Placement of Blocks
YPbPr SAV HP
USB Keypad
Sat
Demod Nand
Flash
(U162) Speaker
Satellite Tuner Con.
CI Connector
Tuner(T3
)
SCART
Connec
Main IC
External tor
Keyboard (U5)
Touchboard HDMI VGA
Connectors Led
Con
DVD
Connector DDR2
LVDS SPI Inv.
RAM Adapter DC Con
Flash
Connectors (U155) Input SPDIF
Out
Power Connector
1. TUNER(TU3)
A horizontal mounted and Digital Half-Nim tuner is used in the product, which covers 3
Bands(From 48MHz to 862MHz for COFDM, from 45.25MHz to 863.25MHz for CCIR CH).
The tuning is available through the digitally controlled I2C bus (PLL). Below you will find
info about the tuner.
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.
1.1. General description of Sony RE216:
The SUT-RE216 is designed for terrestrial TV (digital & analog) and digital cable
reception. It includes a full band tuner and a channel filtering for digital signals. It provides
a low IF output after channel filtering to drive a channel demodulator. Tuning, band
switching and initialization are made via an I2C bus
interface. The module is built on a low-loss printed
circuit board carrying all the components in a metal
housing frame with top and rear covers. The single
aerial connector is mounted on one frame side and all
other connections are made via pins at the bottom.
Features:
Full frequency range from 47 to 870 Mhz
Digital Platform (DVB-T/T2, DVB-C, ISDB-T & ATSC)
Analog platforms (PAL B/G/I/D/K, NTSC M & SECAM L/L')
Low IF tuner concept
Programmable channel Filter bandwidth
Fully I2C bus controlled
For Hybrid TV applications
---Pinning Table
and Application Block Diagram of Tuner---
2. AUDIO AMPLIFIER STAGE WITH AZAD2102(U163, U164)
2.1. General Description
17MB62 uses two 2,5W Class D Mono Audio Amplifers for from 16" to 24" TVs.
AZAD2102B is a 2.9 Watts (max. can offer 3.0 Watts @ Load = 3,THD=10%,
AVdd=DVdd=5.5Volt)with high efficiency filter-free class-D audio power amplifier in a
1613 mm x 1613 mm wafer chip scale package (WCSP). AZAD2102B uses Current-
switch technology to achieve high performance class-d amplifier that features 0.03%
THD, 85% efficiency, 70 dB PSRR, to improve RF-rectification immunity.
AZAD2102B provide a Vibration-Spectrum modulation clock for PWM Output. This
vibration frequency is around 10KHZ shift (+/- 5KHZ of Fpwm).
The advantage of the small size package (WCSP) makes AZAD2102B very suitable for
mobile phone and PDA device application. And the Class-D amplifier structure let
AZAD2102B to have highly efficiency power consumption than Class-AB amplifier.
AZAD2102B can shrink the application board, reduce system cost, and external
components.
ESD level protection I/O embedded in AZAD2102B. For general applications, doesn't
need to add extra ESD protection device (like Varistors) in application system for
AZAD2102B's I/O.
2.2. Features
CMOS Technology
High Efficiency 85%
High PSRR 70dB at 217Hz
Differential OP-amp Input
AZAD2102B provides Vibration-Spectrum Modulation clock for reduce EMI
Provide Mute function(set Mute_B to GND will go into Mute status)
For the input stage AZAD2102B built-in a 10Kohm resistors (Gain setting=29.5dB)
Maximum Battery Life and Minimum Heat
Efficiency With an 8- Speaker:
3.5 mA Quiescent Current
Output Power at 10% THD
2.85Watts at AVdd=DVdd=5.0Volt, Rload=4
1.45Watts at AVdd=DVdd=3.6Volt, Rload=4
0.30Watts at AVdd=DVdd=3.0Volt, Rload=4
1.75Watts at AVdd=DVdd=5.5Volt, Rload=8
0.87Watts at AVdd=DVdd=3.6Volt, Rload=8
0.41Watts at AVdd=DVdd=3.0Volt, Rload=8
Eliminate Power on and Power-off "Pop" noise
A Fewer External Components
Optimized PWM Output Stage Eliminates LC Output Filter
Internally generate 290 kHz Switching Frequency to eliminate Capacitor and
Resistor
Improve PSRR (70 dB) and Wide Supply Voltage (3.0 V to 5.5 V)
Fully Differential Design Reduces RF Rectification
This chip has been built-in a very strong ESD protection.
System level ESD 4KV (IEC 61000-4-2 ESD Contact Level)
Wafer Chip Scale Package (WCSP)
TSSOP Package with Exposed Pad
2.3. Absolute Ratings
2.3.1. Electrical Characteristics
2.3.2. Operating Specifications
2.4. Pinning
3. AUDIO AMPLIFIER STAGE WITH TPA3113(U168)
3.1. General Description
17MB62 uses a 6W Class D Mono Audio Amplifers for from 26" to 32" TVs. The
TPA3113D2 is a 6-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.
SpeakerGuardTM 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.
The TPA3113D2 can drive stereo speakers as low as 4 . The high efficiency of the
TPA3113D2, 87%, 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 short-circuit protection and thermal protection includes an auto-recovery feature.
3.2. Features
6-W/ch into an 8- Loads at 10% THD+N From a 10-V Supply
12-W into a 4- Mono Load at 10% THD+N From a 10-V Supply
87% Efficient Class-D Operation Eliminates Need for Heat Sinks
Wide Supply Voltage Range Allows Operation from 8 V to 26 V
Filter-Free Operation
SpeakerGuardTM 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
Four Selectable, Fixed Gain Settings
Differential inputs
3.3. Absolute Ratings
3.3.1. Electrical Characteristics
3.3.2. Operating Specifications
3.4. Pinning
4. POWER STAGE
The DC voltages required at various parts of the chassis and panel are provided by a
main power supply unit. MB62 chassis can operate with IPS60, IPS16, IPS17, PW26,
PW27 as main power supply and also with 12V adaptor.
CN706 is used for IPS60, IPS16 and IPS17 and CN1 is used for PW26 and PW27.
JK9 is used for the adapter option and also CN705 inverter socket or DB32 chassis with
CN706 is used to supply backlight.
The power supplies generate 18V, 12V, 5V, 3,3V and 12V, 5V, stand by mode DC
voltages. Power stage which is on-chassis generates 5V, 3V3 stand by voltage and 12V,
8V, 5V, 3V3, 2.5V, 1,8V and 1,2V supplies for other different parts of the chassis. Chassis
block diagram is indicated below.
The blocks on power block diagram is using dependent to main supply. For PW26 and
PW27 just common blocks are enough for proper operation.
For IPS16, IPS17, IPS60 below blocks must work properly.
For adopter case also below blocks are necessary.
Short CCT Protection Circuit
Short circuit protection is necessary for protecting chassis and main IC against damages
when any Vcc supply shorts to ground. Protect pin should be logic high while normal
operation. When there is a short circuit protect pin shold be logic low. After any short
detection, SW forces LEDs on LED card to blink.
4.1. Power Management
---MB62 Power Management with Adaptor---
---MB62 Power Management with PW25/ PW26---
---MB62 Power Management with IPS16/IPS17/IPS60/PW05---
---MB62 Power Management with PW03/PW04/PW07---
5. MICROCONTROLLER MSTAR(U5)
5.1. Description
MSD9WB9PT-2 (Main IC) (U5)
The MSD9WB9PT-2 is MStar's most up-to-date system-on-chip solution for flat panel
integrated digital television products. Building on the success of MStar's preceding SOC
series, the MSD9WB9PT-2 provides most cost-effective solution for DTV application with
creative and attractive features exclusively presented by MStar.
The MSD9WB9PT-2 integrates DTV/multi-media all-purpose AV decoder, DVB-T
demodulator, VIF demodulator, and Sound/Video processor into a single device. This
allows the overall BOM to be reduced significantly making the MSD9WB9PT-2 a very
competitive multi-media DTV solution. For ATV users, the MSD9WB9PT-2 provides multi-
standard analog TV support with adaptive 3D video decoding and VBI data extraction.
The build-in audio decoder is capable of decoding FM, AM, NICAM, A2, BTSC and EIA-J
sound standards. The MSD9WB9PT-2 supplies all the necessary A/V inputs and outputs
to complete a receiver design including a multi-port HDMI receiver and component video
ADC. All input selection multiplexed for video and audio are integrated, including full
SCART support with CVBS output. The equipped MStar MACE-5 color engine is the
latest masterpiece from
MStar famous color engine series providing excellent video and picture quality in Full-HD
and large-scale displaying system.
To meet the increasingly popular energy legislative requirements without the use of
additional hardware, the MSD9WB9PT-2 has an ultra low power standby mode during
which an embedded MCU can act upon standby events and wake up the system as
required.
The MSD9WB9PT-2 is composed of several modules:
High Performance Micro-processor
Ultra high speed/performance 32-bit RISC CPU
One full duplex UARTs
Supports USB and ISP programming
DMA Engine
Transport Stream De-multiplexer
Supports parallel and serial TS interface, with or without sync signal
Supports TS input and output for external CI module
Maximum TS data rate is 104 Mb/sec for serial or 16 MB/sec for parallel
32 general purpose PID filters and section filters for each transport stream de-
multiplexer
Supports additional audio/video/PCR filters
Supports TS DMA channel for time-shift
Supports 3DES/DES and AES encryption/decryption
MPEG-2 Video Decoder
ISO/IEC 13818-2 MPEG-2 video MP@HL
Automatic frame rate conversion
Supports resolution up to HDTV (1080i, 720p) and SDTV
MPEG-4 Video Decoder
ISO/IEC 14496-2 MPEG-4 ASP video decoding
Supports resolutions up to HDTV (1080p@30fps)
Supports DivX1 Home Theater & HD profilesOptional
Supports VC-1Optional, FLV video format decoding
Hardware JPEG
Supports sequential mode, single scan
Supports both color and grayscale pictures
Following the file header scan the hardware decoder fully handles the decode
process
Supports programmable Region of Interest (ROI)
Supports formats: 422/411/420/444/422T
Supports scaling down ratios: 1/2, 1/4, 1/8
Supports picture rotation
NTSC/PAL/SECAM Video Decoder
Supports NTSC-M, NTSC-J, NTSC-4.43, PAL (B,
D, G, H, M, N, I, Nc), and SECAM standards
Automatic standard detection
Motion adaptive 3D comb filter
Five configurable CVBS & Y/C S-video inputs
Supports Teletext, Closed Caption (analog CC 608/ analog CC 708/digital CC
608/digital CC
708), V-chip and SCTE
Multi-Standard TV Sound Processor
SIF audio decoding
Supports BTSC/A2/EIA-J demodulation
Supports NICAM/FM/AM demodulation
Supports MTS Mode Mono/Stereo/SAP in BTSC/ EIA-J mode
Supports Mono/Stereo/Dual in A2/NICAM mode
Built-in audio sampling rate conversion (SRC)
Audio processing for loudspeaker channel, including volume, balance, mute, tone,
EQ,virtual stereo/surround and treble/bass controls
Advanced sound processing options available,for example: SRS1, BBE2,
QSound3, Audyssey4
Supports digital audio format decoding:
MPEG-1, MPEG-2 (Layer I/II), MP3, Dolby Digital (AC-3), AAC-LC
SupportsOptional Dolby Digital Plus, Dolby mPulse, and MS10 multistream
decoder, including Dolby Digital Encoder for transcoding streams to Dolby Digital
5.1 (DDCO)
Supports MPEG Audio, Dolby Digital, Dolby Digital Plus format AD (Audio
Description)
Supports PVR and time-shifting
Audio Interface
One SIF audio input interface with minimal external saw filters
Four L/R audio line-inputs
Two L/R outputs for main speakers and additional line-outputs
Supports stereo headphone driver
I2S digital audio input & output
S/PDIF digital audio output
HDMI audio channel processing
Programmable delay for audio/video synchronization
Analog RGB Compliant Input Port
Three analog ports support up to 1080P
Supports PC RGB input up to SXGA@75Hz
Supports HDTV RGB/YPbPr/YCbCr
Supports Composite Sync and SOG Sync-on-Green
Automatic color calibration
AV-link support
Analogue RGB Auto-Configuration & Detection
Auto input signal format and mode detection
Auto-tuning function including phasing, positioning, offset, gain, and jitter detection
Sync Detection for H/V Sync
DVI/HDCP/HDMI Compliant Input Port
Two HDMI/DVI Input ports
HDMI 1.3 Compliant
HDCP 1.1 Compliant
225MHz @ 1080P 60Hz input with 12-bit Deep-color support
CEC support
Single link DVI 1.0 compliant
Robust receiver with excellent long-cable support
MStar Advanced Color Engine (MStarACE-5)
10/12-bit internal data processing
Fully programmable multi-function scaling engine
Nonlinear video scaling supports various modes including Panorama
Supports dynamic scaling for VC-1
High-Quality DTV video processor
3D motion video deinterlacer with motion object stabilizer
Edge-oriented deinterlacer with edge and artifact smoother
Automatic 3:2/2:2/M:N pull-down detection and recovery
3D multi-purpose noise reduction for DTV or lousy air/cable input
MPEG artifact removal including de-blocking and mosquito noise reduction
Arbitrary frame rate conversion
MStar Professional Picture Enhancement:
Dynamic brilliant and fresh color
Dynamic Blue Stretch
Intensified contrast and details
Dynamic Vivid Skin
Dynamic sharpened Luma/Chroma edges
Global and local dynamic depth of field perception
Accurate and independent color control
Supports sRGB and xvYCC color processing
Supports HDMI 1.3 deep color format
Programmable 12-bit RGB gamma CLUT
Output Interface
Single/dual link 8/10-bit LVDS output
Supports panel resolution up to Full-HD (1920x1080) @ 60Hz
Supports TH/TI format
Supports dithering options to 6/8-bit output
Spread spectrum output for EMI suppression
CVBS Video Encoder
Supports all NTSC/PAL TV Standard
Stand-alone scaling engine
Programmable Hue, Contract, Brightness
Supports TTX/CC/WSS output
CVBS Video Output
Allows CVBS output of all source inputs
2D Graphics Engine
Hardware Graphics Engine for responsive
Interactive applications
Supports point draw, line draw, rectangle draw/fill, text draw and trapezoid draw
BitBlt, stretch BitBlt, trapezoid BitBlt, mirror BitBlt and rotate BitBlt
Raster Operation (ROP)
Support Porter-Duff
VIF Demodulator
Compliant with NTSC M/N, PAL B, G/H, I, D/K,
SECAM L/L' standards
Audio/Video dual-path processor
Stepped-gain PGA with 25 dB tuning range and 1 dB tuning resolution
Maximum IF gain of 37 dB
Programmable TOP to accommodate different tuner gain and SAW filter insertion
loss to
optimize noise and linearity performance
Multi-standard processing with single SAW
Supports silicon tuner low IF output architecture
DVB-T Demodulator
Digital carrier frequency offset correction: ±500KHz
Optimised for SFN channels with pre/post-cursive echoes inside/outside the guard
Acquisition range ±857kHz includes up to 3x ±1/6 MHz transmitter offset
Meets Nordig Unified 1.0.3, D-Book 5.0, EICTA E-Book/C-Book test requirement
±400kHz internal carrier offset recovery range
6.8 usecs echo cancellation at 7 Msym/s
Supports IF, low-IF, zero-IF inputs
Ultra-fast automatic blind UHF/VHF channel scan (constellations and symbol rate)
Connectivity
Two USB 2.0 host ports
USB architecture designed for efficient support of external storage devices in
conjunction with
off air broadcasting
Miscellaneous
DRAM interface supporting one 16-bit DDR2 @1066MHz
Supports PVR
Supports Common Interface for conditional access support
Bootable SPI interface with serial flash support
Parallel interface for external NAND flash support
Power control module with ultra low power MCU available in standby mode
380-ball LFBGA package
Operating Voltages: 1.26V (core), 1.8V (DDR2), 2.5V and 3.3V (I/O and analog)
5.2. MSTAR Block Diagram
5.3. Reset Circuit
Reset circuit using for initiliazing main Mstar IC. Reset condition is high and nomal
working condition is low for RESET pin.
6. CI INTERFACE
CI Interface Power Switch:
It is used for CI module supply, when Module is inserted (it means CI detect is low) This
circuit is opened or closed by CI_POWER_CTRL port of main uController
7. USB INTERFACE
Main Concept IC has integrated 2 USB 2.0 interface. One of them is used for ethernet
function, the other one is used for USB connectivity for last user. Last user can play video,
picture and audio files. Also digital channels can be record to externall storage device by
this interface. All SW files can be updated with interface.
USB circuit has 3 main parts
Integrated USB 2.0 Host interface of D3K (U5)
Protection IC (U145)
Over Curent Protection IC (U8)
8. DDR2 SDRAM K4T1G164QF (U155)
Description:
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 fea-tures 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 exter-nally supplied differential clocks. Inputs are latched at
the crosspoint of dif-ferential clocks (CK rising and CK falling). All I/Os are synchronized
with a pair of bidirectional strobes (DQS and DQS) in a source synchronous fash-ion. 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).
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
· 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
Pinning:
9. SCALER AND LVDS SOCKETS
9.1. LVDS sockets Block Diagram
9.2. Panel Supply Switch Circuit
This switch is used to open and close panel supply of TCON. It is controlled by port of
main ucontroller. Also with this circit panel sequency could be adjusted correctly. 3 panel
supplys are connected to this circuit. All of them are optional according to panels.
10. SPI FLASH MEMORY - MX25L1005 (U158)
10.1. General Description
MX25L1005 is a CMOS 1,048,576 bit serial Flash memory, which is configured as
131,072 x 8 internally.The MX25L1005 feature a serial peripheral interface and software
protocol allowing operation on a simple 3-wire bus. The three bus signals are a clock
input (SCLK), a serial data input (SI), and a serial data output (SO). SPI access to the
device is enabled by CS# input. The MX25L1005 provide sequential read operation on
whole chip. After program/erase command is issued, auto program/ erase algorithms
which program/ erase and verify the specified page or sector/block locations will be
executed. Program command is executed on page (256 bytes) basis, and erase
command is executes on chip or sector(4K-bytes) or block(64K-bytes). To provide user
with ease of interface, a status register is included to indicate the status of the chip. The
status read command can be issued to detect completion status of a program or erase
operation via WIP bit. When the device is not in operation and CS# is high, it is put in
standby mode and draws less than 10uA DC current. The MX25L1005 utilize MXIC's
proprietary memory cell, which reliably stores memory contents even after 100,000
program and erase cycles.
10.2. Features
Serial Peripheral Interface (SPI) compatible -- Mode 0 and Mode 3
1,048,576 x 1 bit structure
32 Equal Sectors with 4K byte each, Any Sector can be erased individually
2 Equal Blocks with 64K byte each, Any Block can be erased individually
Single Power Supply Operation
2.7 to 3.6 volt for read, erase, and program operations
Latch-up protected to 100mA from -1V to Vcc +1V
Low Vcc write inhibit is from 1.5V to 2.5V
10.3. Absolute Maximum Ratings
RATING VALUE
Ambient Operating 0°C to 70°C
Temperature
Storage Temperature -55°C to 125°C
Applied Input Voltage -0.5v to 4.6v
Applied Output Voltage -0.5v to 4.6v
VCC to Ground Potential -0.5v to 4.6v
10.4. Pinning
8-PIN SOP (150mil)
SYMBOL DESCRIPTION
CS# Chip select
SI Serial Data Input
SO Serial Data Output
SCLK Clock Input
HOLD# Hold, to pause the device without
deselecting the device
VCC +3.3v Power Supply
GND Ground
11. NAND FLASH MEMORY NAND512XXA2C (U162)
11.1. General Description
The NAND flash 528-byte/ 264-word page is a family of non-volatile flash memories that
uses the single level cell (SLC) NAND technology. It is referred to as the small page
family.
The NAND512R3A2C, NAND512R4A2C, and NAND512W3A2C have a density of 512
Mbits and operate with either a 1.8 V or 3 V voltage supply. The size of a page is either
528 bytes (512 + 16 spare) or 264 words (256 + 8 spare) depending on whether the
device has a x8 or x16 bus width.
The address lines are multiplexed with the Data Input/Output signals on a multiplexed x8
or x16 input/output bus. This interface reduces the pin count and makes it possible to
migrate to other densities without changing the footprint.
To extend the lifetime of NAND flash devices it is strongly recommended to implement an
error correction code (ECC). The use of ECC correction allows to achieve up to 100,000
program/erase cycles for each block. A write protect pin is available to give a hardware
protection against program and erase operations.
11.2. Features
High density NAND flash memories
o 512-Mbit memory array
o Cost effective solutions for mass storage applications
NAND interface
o x8 or x16 bus width
o Multiplexed address/ data
Supply voltage: 1.8 V, 3 V
Page size
o x8 device: (512 + 16 spare) bytes
o x16 device: (256 + 8 spare) words
Block size
o x8 device: (16K + 512 spare) bytes
o x16 device: (8K + 256 spare) words
Page read/program
o Random access: 12 s (3 V)/15 s (1.8 V) (max)
o Sequential access: 30 ns (3 V)/50 ns (1.8 V) (min)
o Page program time: 200 s (typ)
Copy back program mode
Fast block erase: 2 ms (typ)
Status register
Electronic signature
Chip Enable `don't care'
Security features
o OTP area
Serial number (unique ID) option
Hardware data protection
o Program/erase locked during power transitions
Data integrity
o 100,000 program/erase cycles (with ECC)
o 10 years data retention
RoHS compliant packages
Development tools
o Error correction code models
o Bad blocks management and wear leveling algorithms
11.3. Pinning
12. LNBH23L (U6)
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.
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 DiSEqCTM 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
Block Diagram:
13. Advanced DVB-S/S2 Demodulator M88DS3002 (U3)
Description:
The M88DS3002 is an advanced single-chip demodulator for digital satellite television
broadcasting. It is fully compliant with the DVB-S/S2 standard and can support QPSK,
8PSK, 16APSK and 32APSK demodulation schemes. The chip provides a fast, easy-to-
apply and cost-effective front-end solution for digital satellite receiver.
The M88DS3002 accepts baseband differential or singleended I and Q signals from a
tuner, then digitizes, demodulates and decodes the signals, and finally outputs an MPEG
transport stream.
The M88DS3002 supports symbol rate from 1 Msps up to 45 Msps, and code rate from
1/4 to 9/10. Its features cover blind scan, fade detection, timing and carrier recovery,
performance monitoring, co-channel interference cancellation, command interface, and
DiSEqCTM 2.X interface, etc. The device is controlled via a 2-wire serial bus. The
M88DS3002 works properly with 1.25 V and 3.3 V voltage supplies. Typically, the power
consumption is around 390 mW. The chip is available in a 64-pin QFN
package and is RoHS compliant.
Features:
· Multi-standard demodulation
Compliant with DVB-S/S2 specification
QPSK, 8PSK, 16APSK and 32APSK demodulation schemes
Maximum channel bit rate is 130 Mbps
Maximum symbol rates are: 45 Msps for QPSK and 8PSK; 36 Msps for 16APSK
and 28 Msps for 32APSK
· DSP features
Symbol rate sweeping
I/Q impairment cancellation
Automatic spectrum inversion
Adaptive equalizer for RF reflection removal
Roll-off factor automatic identification
Blind scan for programming search
High performance on-chip micro-controller
Multi-error monitor
Accurate SNR estimation
Multi-lock indicators
Clipping rate reporter
DC removal
Automatic frequency correction (AFC)
Fast timing loop acquisition
Robust frame synchronization scheme
Phase noise indicator
Fast system recovery from fading or other abnormal conditions
Co-channel interference cancellation
Constellation monitor
· Interface
DVB-S/S2 common, parallel and serial MPEG output interface compliant
2-wire serial bus to configure the device
2-wire bus repeater for tuner configuration
DiSEqCTM 2.X compliant interface
General purpose output (GPO)
Dedicated reference clocks (13.5MHz / 27MHz) generation
· System
On-chip 8-bit ADC
On-chip PLL for master clock from a 27 MHz external clock or quartz crystal
Sleep mode supported
---Block Diagram of M88DS3002---
Pin Assignment:
14. LM1117(U175, U180, U181)
14.1. General Description
The LM1117 is a series of low dropout voltage regulators with a dropout of 1.2V at 800mA
of load current. It has the same pin-out as National Semiconductor's industry standard
LM317. The LM1117 is available in an adjustable version, which can set the output
voltage from 1.25V to 13.8V with only two external resistors. In addition, it is also
available in five fixed voltages, 1.8V, 2.5V, 2.85V, 3.3V, and 5V. The LM1117 offers
current limiting and thermal shutdown. Its circuit includes a zener trimmed bandgap
reference to as-sure output voltage accuracy to within ±1%. The LM1117 series is
available in SOT- 223, TO-220, and TO-252 D-PAK packages. A minimum of 10F
tantalum capacitor is required at the output to improve the transient response and
stability.
14.2. Features
Available in 1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable Versions
Space Saving SOT-223 Package
Current Limiting and Thermal Protection
Output Current 800mA
Line Regulation 0.2% (Max)
Load Regulation 0.4% (Max)
Temperature Range
LM1117 0°C to 125°C
LM1117I -40°C to 125°C
14.3. Applications
2.85V Model for SCSI-2 Active Termination
Post Regulator for Switching DC/DC Converter
High Efficiency Linear Regulators 15
32" TFT TV Service Manual 10/01/2005
Battery Charger
Battery Powered Instrumentation
14.4. Absolute Maximum Ratings
14.5. Pinning
15. MP2012 (U176)
15.1. General Description
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 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.
15.2. Features
2.7-6V Input Operation Range
Output Adjustable from 0.8V to VIN
1A Max Shutdown Current.
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
15.3. Pinning
Pin Name Description
#
1 FB Feedback input. An external resistor divider from
the output to GND, tapped to the FB pin sets the
output voltage.
2 GND, Ground pin. Connect exposed pad to ground
Exposed plane for proper thermal performance.
Pad
3 SW Switch node to the inductor.
4 PVIN Input supply pin for power FET.
5 VIN Input Supply pin for controller. Put small
decoupling ceramic near this pin.
6 EN Enable input, "High" enables MP2012. EN is
pulled to GND with 1Meg internal resistor.
16. RTA8283A (U23, U173)
16.1. General Description
The RT8283A is a high-efficiency, monolithic synchronous step-down DC/DC converter
that can deliver up to 3A output current from a 4.5V to 23V input supply. The RT8283A's
current mode architecture and external compensation allow the transient response to be
optimized over a wide range of loads and output capacitors. Cycle-by-cycle current limit
provides protection against shorted outputs and soft-start eliminates input current surge
during start-up. The RT8283A also provides output under voltage protection and thermal
shutdown protection. The low current (<3A) shutdown mode provides output disconnect,
enabling easy power management in batterypowered systems. The RT8283A is available
in a SOP-8 package.
16.2. Features
±1.5% High Accuracy Feedback Voltage
Integrated N-MOSFET Switches
Current Mode Control
Fixed Frequency Operation : 340kHz
Output Adjustable from 0.8V to 20V
Up to 95% Efficiency
Thermal Shutdown Protection
16.3. Pinning
Pin No. Pin Description
Name
1 BOOT Bootstrap for high-side gate driver. Connect a 0.1F or
greater ceramic capacitor from BOOT to SW pins.
2 VIN Input Supply 4.5V to 23V. Must bypass with a suitably
large ceramic capacitor.
3 SW Phase Node--Connect to external L-C filter..
4, 9 (Exposed GND Ground.
Pad)
5 FB Feedback Input pin is connected to the converter output.
It is used to set the output of the converter to regulate to
the desired value via an internal res divider. For an
adjustable output, an external res divider is connected to
this pin.
6 COMP Compensation Node. COMP is used to compensate the
regulation Control loop. Connect a series RC network
from COMP to GND. In some cases, an additional
capacitor from COMP to GND is required.
7 EN Enable Input Pin. Logic high enables the converter; a
logic low forces the RT8253A into shutdown mode.
Attach this pin to VIN with a 100k pull up resistor for
automatic startup.
8 SS Soft-Start Control Input. SS controls the soft-start period.
Connect a capacitor from SS to GND to set the soft-start
period. A 0.1F capacitor sets the soft-start period to
13.5ms.
17. MP1583 (U174)
17.1. General Description
The MP1583 is a step-down regulator with a built-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. Fault condition protection includes cycle-by-cycle current limiting and thermal
shutdown. An adjustable soft-start reduces the stress on the input source at start-up. The
MP1583 requires a minimum number of external components, providing a compact
solution.
17.2. Features
3A Output Current
Programmable Soft-Start
100m Internal Power MOSFET Switch
Stable with Low ESR Output Ceramic Capacitors
Up to 95% Efficiency
20A 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
17.3. Pinning
Pin Pin Description
No. Name
1 BOOT High-Side Gate Drive Bootstrap Input. BS supplies the drive for the
high-side N-Channel MOSFET switch.
2 IN Power Input. Drive IN with a 4.75V to 23V power source.
3 SW Power Switching Out is the switching node that supplies power to the
output
4 GND Ground.
5 FB Feedback Input. FB senses the output voltage and regulates it. Drive
FB with a resistive voltage divider from the output voltage. FB
threshold is 1.222V.
6 COMP Compensation Node is used to compensate the regulation control
loop.
7 EN Enable/UVLO. A voltage greater than 2.71V enables operation. For
complete low current shutdown the EN pin voltage needs to be at less
than 900mV. When the voltage on EN exceeds 1.2V, the internal
regulator will be enabled and the soft-start capacitor will begin to
charge. The MP1583 will start switching after the EN pin voltage
reaches 2.71V.
8 SS Soft-Start Control Input. SS controls the soft-start period.
18. FDC642
18.1. General Description
This P-Channel 2.5V specified MOSFET is produced using Fairchild's advanced
PowerTrench® process that has been especially tailored to minimize on-state resistance
and yet maintain low gate charge for superior switching performance.
These devices have been designed to offer exceptional power dissipation in a very small
footprint for applications where the larger packages are impractical.
18.2. Features
Max rDS(on) = 65 m at VGS = -4.5 V, ID = -4.0 A
Max rDS(on) = 100 m at VGS = -2.5 V, ID = -3.2 A
Fast switching speed
Low gate charge (11nC typical)
High performance trench technology for extremely low rDS(on)
SuperSOTTM-6 package: small footprint (72% smaller than standard SO-8);
low profile (1 mm thick)
Termination is Lead-free and RoHS Compliant
18.3. Pinning
19. FDC604P
19.1. General Description
This P-Channel 1.8V specified MOSFET uses Fairchild's low voltage PowerTrench
process. It has been optimized for battery power management applications.
19.2. Features
5.5 A, 20 V. RDS(ON) = 33 m @ VGS = 4.5 V
RDS(ON) = 43 m @ VGS = 2.5 V
RDS(ON) = 60 m @ VGS = 1.8 V
Fast switching speed.
High performance trench technology for extremely low RDS(ON)(S)
19.3. Pinning
20. CONNECTORS
20.1. SCART (SC1)
20.2. HDMI (CN707,CN708)
20.3. VGA (CN711)
21. SERVICE MENU SETTINGS
In order to reach service menu, First Press "MENU" Then press the remote control code
two times, which is "4725".
In first screen following items can be seen:
21.1. Video Settings
21.2. Audio Settings
21.3. Options
Options-1
Options-2
21.4. Tuning Settings
21.5. Source Settings
21.6. Diagnostic
21.7. USB Operations
USB operations option can not be used directly. It can be used for updating panel tool, hw
congiguration etc.
22. SOFTWARE UPDATE
In MB62 project there is only one software. From following steps software update
procedure can be seen:
1. MB62_en.bin, mboot.bin and usb_auto_update_T4.txt documents 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 when the tv is opened.
4. If First Time Installition screen comes, it means software update procedure is
succesful.
23. TROUBLESHOOTING
23.1. 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
Backlight pin should be high in open position. If it is low, please check Q181 and panel
cables.
Dimming pin should be high or square wave in open position. If it is low, please check
S16 for Mstar side and panel or power cables, connectors.
Backlight power supply should be in panel specs. Please check CN705 for MB62, related
connectors for power supply cards.
STBY_ON/OFF should be low for standby on condition, please check R1677.
23.2. 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 shoul be 5V when CI module inserted. If it is not 5V please check
CI_POWER_CTRL, this pin should be low.
Please check mechanical positions of CI module.
Detect ports should be low. If it is not low please check CI connector pins, CI module pins
and 3V3_VCC on MB62.
23.3. Led Blinking Problem
Problem: LED blinking, 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.
23.4. IR Problem
Problem: LED or IR not working
Check LED card supply on MB62 chasis.
23.5. Keypad Touchpad Problems
Problem: Keypad or Touchpad is not working
Check keypad supply and KEYBOARD pin on MB62.
23.6. USB Problems
Problem: USB is not working or no USB Detection.
Check USB Supply, It should be nearly 5V.
23.7. No Sound Problem
Problem: No audio at main TV speaker outputs.
Check supply voltages of VDD_AUDIO, 5V_VCC and 3V3_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.
23.8. No Sound Problem at Headphone
Problem: No audio at headphone output.
Check HP detect pin, when headphone is. Check 5V_VCC and 3V3_VCC with a voltage-
meter.
23.9. Standby On/Off Problem
Problem:
Device cannot boot, TV hangs in standby mode.
There may be a problem about power supply. Check 12V_VCC, 5V_VCC and 3V3_VCC
with a voltage-meter. Also there may be a problem about SW. Try to update TV with latest
SW. Additionally it is goood to check SW printouts via hyper-terminal (or Teraterm).
These printouts may give a clue about the problem.
DVD Problems
Problem: DVD is not working.
Check that DVD source is selected in Service menu. Check supply voltage of DVD
namely 12V_VCC.
23.10. No Signal Problem
Problem: No signal in TV mode.
Check tuner supply voltage; 3V3_TUN. Check tuner options are correctly set in Service
menu. Check AGC voltage at IF_AGC pin of tuner.
1 2 3 4 5 6 7 8
ACTIVE_ANT_SUPPLY
NUTUNE/SEMCO/LG
5V_VCC
C965
C904 2
C61 100n
1 TP48 100n 22u 16V
ANT-DC 1 ANT-DC 1 10V
1