Vestel 17MB60 Schematic

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TABLE OF CONTENTS
1. INTRODUCTION...................................................................................................................... 5
1.1. General Block Diagram.................................................................................................. 6
1.2. MB60 Placement of Blocks............................................................................................ 7
1. TUNER(TU102)......................................................................................................................... 8
1.1. General description of Samsung DTOS403LH122X:.................................................... 8
1.2. Features of DTOS403LH122X: ..................................................................................... 8
1.3. Pinning: .......................................................................................................................... 9
2. SAW FILTER – Audio – Epcos K9656M(Z101) ...................................................................... 9
2.1. Standart........................................................................................................................... 9
2.2. Features ........................................................................................................................ 10
2.3. Pin configuration .......................................................................................................... 10
2.4. Frequency response ...................................................................................................... 10
3.1. Standart......................................................................................................................... 11
3.2. Features ........................................................................................................................ 11
3.3. Frequency response ...................................................................................................... 12
4. AUDIO AMPLIFIER STAGE WITH AZAD2102(U163, U164) ........................................... 12
4.1. General Description...................................................................................................... 12
4.2. Features ........................................................................................................................ 13
4.3. Absolute Ratings .......................................................................................................... 14
4.3.1. Electrical Characteristics.......................................................................................... 14
4.3.2. Operating Specifications .......................................................................................... 15
4.4. Pinning ......................................................................................................................... 16
5.1. General Description...................................................................................................... 16
5.2. Features ........................................................................................................................ 17
5.3. Absolute Ratings .......................................................................................................... 17
5.3.1. Electrical Characteristics.......................................................................................... 17
5.3.2. Operating Specifications .......................................................................................... 18
5.4. Pinning ......................................................................................................................... 18
6.1. Power Management...................................................................................................... 22
7.1. General Descripction.................................................................................................... 23
7.2. General Features........................................................................................................... 24
7.3. MSTAR Block Diagram............................................................................................... 28
7.4. Reset Circuit................................................................................................................. 29
8. CI INTERFACE....................................................................................................................... 29
7.1 Block Diagram ............................................................................................................. 29
7.1 CI Interface Power Switch ........................................................................................... 30
9. T2 Demodulator CXD2820R (U167)....................................................................................... 30
9.1. General Description...................................................................................................... 30
9.2. Features ........................................................................................................................ 30
9.3. Pinning ......................................................................................................................... 32
10. USB INTERFACE ............................................................................................................... 35
11.1. General Description...................................................................................................... 35
11.2. Features ........................................................................................................................ 36
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11.3. Electrical Characteristics.............................................................................................. 36
11.4. Pinning ......................................................................................................................... 37
12. SCALER AND LVDS SOCKETS....................................................................................... 39
12.1. LVDS sockets Block Diagram ..................................................................................... 39
12.2. Panel Supply Switch Circuit ........................................................................................ 39
13.1. General Description...................................................................................................... 40
13.2. Features ........................................................................................................................ 40
13.3. Absolute Maximum Ratings......................................................................................... 41
13.4. Pinning ......................................................................................................................... 41
14. NAND FLASH MEMORY – NAND512XXA2C (U162) .................................................. 42
14.1. General Description...................................................................................................... 42
14.2. Features ........................................................................................................................ 42
14.3. Pinning ......................................................................................................................... 43
15.1. General Description...................................................................................................... 44
15.2. Features ........................................................................................................................ 44
15.3. Block Diagram ............................................................................................................. 45
15.4. Pinning ......................................................................................................................... 46
16. LM1117(U175, U180, U181)............................................................................................... 46
16.1. General Description...................................................................................................... 46
16.2. Features ........................................................................................................................ 46
16.3. Applications ................................................................................................................. 47
16.4. Absolute Maximum Ratings......................................................................................... 47
16.5. Pinning ......................................................................................................................... 47
17. MP2012 (U176).................................................................................................................... 47
17.1. General Description...................................................................................................... 47
17.2. Features ........................................................................................................................ 47
17.3. Pinning ......................................................................................................................... 48
18.1. General Description...................................................................................................... 48
18.2. Features ........................................................................................................................ 49
18.3. Pinning ......................................................................................................................... 49
19. MP1583 (U174).................................................................................................................... 49
19.1. General Description...................................................................................................... 49
19.2. Features ........................................................................................................................ 50
19.3. Pinning ......................................................................................................................... 50
20. FDC642 ................................................................................................................................ 51
20.1. General Description...................................................................................................... 51
20.2. Features ........................................................................................................................ 51
20.3. Pinning ......................................................................................................................... 51
21.1. General Description...................................................................................................... 51
21.2. Features ........................................................................................................................ 51
21.3. Pinning ......................................................................................................................... 52
22. CONNECTORS ................................................................................................................... 52
22.1. SCART (SC1) .............................................................................................................. 52
22.2. HDMI (CN707,CN708) ............................................................................................... 52
22.3. VGA (CN132) .............................................................................................................. 53
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23. SERVICE MENU SETTINGS............................................................................................. 54
23.1. Video Settings .............................................................................................................. 55
23.2. Audio Settings .............................................................................................................. 56
23.3. Options ......................................................................................................................... 57
23.4. Tuning Settings ............................................................................................................ 59
23.5. Source Settings............................................................................................................. 60
23.6. Diagnostic..................................................................................................................... 61
23.7. USB Operations............................................................................................................ 61
24. SOFTWARE UPDATE........................................................................................................ 62
25. TROUBLESHOOTING ....................................................................................................... 63
25.1. No Backlight Problem.................................................................................................. 63
25.2. CI Module Problem...................................................................................................... 64
25.3. Led Blinking Problem .................................................................................................. 66
25.4. IR Problem ................................................................................................................... 67
25.5. Keypad Touchpad Problems ........................................................................................ 67
25.6. USB Problems .............................................................................................................. 68
25.7. No Sound Problem ....................................................................................................... 69
25.8. No Sound Problem at Headphone ................................................................................ 69
25.9. Standby On/Off Problem.............................................................................................. 70
DVD Problems ......................................................................................................................... 70
25.10. No Signal Problem ................................................................................................... 71
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1. INTRODUCTION
17MB60 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-T2 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 8Ω 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 iPod(Optional) 1 On-board Keypad(Optional) 1 External Keypad(Optional) 1 External TouchPad(Optional)
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1.1. General Block Diagram
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1.2. MB60 Placement of Blocks
(U171)
External Keyboard Touchboard
DVD Connector
CI Connector
Power Connector
Nand Flash (U162)
Connectors
DDR2 RAM (U154)
LVDS
USB
Saw Filters
Main IC
(U157)
DDR2 RAM (U155)
SPI Flash
Ethernet IC
Keypad
Tuner(TU102)
HDMI Connectors
Ethernet Connector or Adapter DC Input
YPbPr SAV HP
SCART Connector
VGA
SPDIF Out
Speaker Con.
Led Con
Inv. Con
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1. TUNER(TU102)
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 Samsung DTOS403LH122X:
The Tuner covers 3 Bands(from 48MHz to 862MHz for COFDM, from 45.25MHz to
863.25MHz for CCIR CH). Band selection and Tuning are performed digitally via the I2C bus.
1.2. Features of DTOS403LH122X:
Receiving System: This TUNER is designed to cover the air channels in VHF and
UHF, compliant with DVB-T standard. and It covers all Analog channels from
48.25MHz to 863.25MHz
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Receiving Channel (Digital, Center frequency):
Pin n
o.
Name
Pin Description
1
Ant Power
Active Antenna Power
3
RF AGC
RF AGC (internal or external mode)
4CLI2C Serial Clock
6BP+5V, Supply Voltage (RF Amp, PLL, IF Amp)
7
BT(T.P)
+33V, within DC/DC circuit
8ASI2C Address Selection of the PLL
9
IF AGC
Control voltage for the IF AGC
11
IF OUT
-
Output 1 of the IF Amplifier
VHF Low CH. E2 ~ S10 ( 50.5MHz ~ 170.5MHz ) VHF High CH. E5 ~ S41 ( 177.5MHz ~ 466 MHz ) UHF CH. E21 ~ E69 ( 474 MHz ~ 858 MHz )
Receiving Channel (PAL, Picture carrier frequency):
VHF Low CH. E2 ~ S10 ( 48.25MHz ~ 168.25MHz ) VHF High CH. E5 ~ S41 ( 175.25MHz ~ 463.25MHz ) UHF CH. E21 ~ E70 ( 471.25MHz ~ 863.25MHz )
Intermediate Frequency:
Digital(center) DVB-T (36.167 MHz) Digital(center) DVB-C (36.125 MHz) Analog(picture) 38.9 MHz
Input Impedance: 75Ω, UnbalancedBand Change-Over System
PLL Control System
Tuning System
Electronic Tuning System With PLL
Internal(or External) RF AGC function
Built in wideband AGC detector with 6 programmable take-over points
1.3. Pinning:
Terminal
2 B+ +5V, Supply Voltage (Preamplifier, DC/DC)
5 DA I2C Serial Clock
10 IF OUT + Output 2 of the IF Amplifier
12 AIF Output IF output of the Analog BroadBand
2. SAW FILTER – Audio – Epcos K9656M(Z101)
2.1. Standart
B/G D/K I L/L’
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2.2. Features
TV IF audio filter with two channelsChannel 1 (L’) with one pass band for sound carriers at 40,40 MHz (L’) and 39,75
MHz (L’- NICAM)
Channel 2 (B/G,D/K,L,I) with one pass band for sound carriers between 32,35 MHz
and 33,40 MHz
2.3. Pin configuration
1 Input 2 Switching input 3 Chip carrier - ground 4 Output 5 Output
2.4. Frequency response
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3. SAW FILTER – Video – Epcos K3958M(Z102)
3.1. Standart
B/G D/K I L/L’
3.2. Features
TV IF filter with Nyquist slopes at 33.90 MHz and 38.90 MHz Constant group delay
Pin configuration:
1 Input 2 Input - ground 3 Chip - carrier ground 4 Output 5 Output
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3.3. Frequency response
4. AUDIO AMPLIFIER STAGE WITH AZAD2102(U163, U164)
4.1. General Description
17MB60 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 = 3Ω,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 Current­switch technology to achieve high performance class-d amplifier that features 0.03% THD, 85% efficiency, –70 dB PSRR, to improve RF-rectification immunity.
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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.
4.2. 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-Ω Speaker: 3.5 mA Quiescent Current Output Power at 10% THD 2.85Watts at AVdd=DVdd=5.0Volt, Rload=4Ω 1.45Watts at AVdd=DVdd=3.6Volt, Rload=4Ω 0.30Watts at AVdd=DVdd=3.0Volt, Rload=4Ω 1.75Watts at AVdd=DVdd=5.5Volt, Rload=8Ω 0.87Watts at AVdd=DVdd=3.6Volt, Rload=8Ω 0.41Watts at AVdd=DVdd=3.0Volt, Rload=8Ω 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
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4.3. Absolute Ratings
4.3.1. Electrical Characteristics
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4.3.2. Operating Specifications
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4.4. Pinning
5. AUDIO AMPLIFIER STAGE WITH TPA3113(U168)
5.1. General Description
17MB60 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. 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.
The TPA3113D2 can drive stereo speakers as low as 4 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.
Ω. The high efficiency of the
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5.2. Features
6-W/ch into an 8-Ω Loads at 10% THD+N From a 10-V Supply 12-W into a 4-Ω 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 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 Four Selectable, Fixed Gain Settings Differential inputs
5.3. Absolute Ratings
5.3.1. Electrical Characteristics
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5.3.2. Operating Specifications
5.4. Pinning
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6. POWER STAGE
The DC voltages required at various parts of the chassis and panel are provided by a main power supply unit. MB60 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.
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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.
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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.
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6.1. Power Management
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7. MICROCONTROLLER – MSTAR(U157)
7.1. General Descripction
The MSD9WB7PX-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 MSD9WB7PX-2 a very
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competitive multi-media DTV solution. For ATV users, the MSD9WB7PX-2 provides multi­standard 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 MSD9WB7PX-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 MSD9WB7PX-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.
7.2. General Features
MSD9WB9PX-2, an SOC solution that supports channel decoding, MPEG decoding, and media-centre functionality enabled by a high performance AV CODEC and CPU Key features include,
Digital and Analog DVB Front-End DemodulatorA Multi-Standard A/V Format DecoderThe MACE-5 Video ProcessorHome Theater Sound ProcessorPeripheral and Power Management
Transport Stream De-multiplexer
Supports parallel and serial TS interface, with or without sync signalSupports TS input and output for external CI moduleMaximum TS data rate is 104 Mb/sec for serial or 16 MB/sec for parallel32 general purpose PID filters and section filters for each transport stream de-
multiplexer
Supports additional audio/video/PCR filtersSupports TS DMA channel for time-shiftSupports 3DES/DES and AES encryption/decryption
MPEG-2 Video Decoder
ISO/IEC 13818-2 MPEG-2 video MP@HLAutomatic frame rate conversionSupports resolution up to HDTV (1080i, 720p) and SDTV
MPEG-4 Video Decoder
ISO/IEC 14496-2 MPEG-4 ASP video decodingSupports resolutions up to HDTV (1080p@30fps)Supports DivX1 Home Theater & HD profilesOptionalSupports VC-1Optional, FLV video format decoding
H.264 Decoder
ITU-T H.264, ISO/IEC 14496-10 (main and high profile up to level 4.1) video
decoding
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Supports resolutions for all DVB, ATSC, HDTV, DVD and VCDSupports resolution up to 1080p@30fpsSupports CABAC and CAVLC stream typesProcessing of ES and PES streams, extraction and provision of time stampsUp to 40 Mbits bitrate (Blu-ray spec.)
Hardware JPEG
Supports sequential mode, single scanSupports both color and grayscale picturesFollowing the file header scan the hardware decoder fully handles the decode
process
Supports programmable Region of Interest (ROI)Supports formats: 422/411/420/444/422TSupports scaling down ratios: 1/2, 1/4, 1/8Supports 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 detectionMotion adaptive 3D comb filterFive configurable CVBS & Y/C S-video inputsSupports 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 decodingSupports BTSC/A2/EIA-J demodulationSupports NICAM/FM/AM demodulationSupports MTS Mode Mono/Stereo/SAP in BTSC/EIA-J modeSupports Mono/Stereo/Dual in A2/NICAM modeBuilt-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: Dolby, SRS, BBE,
QSound, Audyssey
Supports digital audio format decoding:MPEG-1, MPEG-2 (Layer I/II), MP3, Dolby Digital (AC-3), AAC-LCSupports Optional Dolby Digital Plus, Dolby Pulse, 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
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Four L/R audio line-inputs including Mic. inputTwo L/R outputs for main speakers and additional line-outputsSupports stereo headphone driverI2S digital audio input & outputS/PDIF digital audio outputHDMI audio channel processingProgrammable delay for audio/video synchronization
Analog RGB Compliant Input Port
Three analog ports support up to 1080PSupports PC RGB input up to SXGA@75HzSupports HDTV RGB/YPbPr/YCbCrSupports Composite Sync and SOG Sync-on-GreenAutomatic color calibrationAV-link support
Analogue RGB Auto-Configuration & Detection
Auto input signal format and mode detectionAuto-tuning function including phasing, positioning, offset, gain, and jitter detectionSync Detection for H/V Sync
DVI/HDCP/HDMI Compliant Input Port
Three HDMI/DVI Input portsHDMI 1.3 CompliantHDCP 1.1 Compliant225MHz @ 1080P 60Hz input with 12-bit Deep-color supportCEC supportSingle link DVI 1.0 compliantRobust receiver with excellent long-cable support
MStar Advanced Color Engine (MStarACE-5)
10/12-bit internal data processingFully programmable multi-function scaling engineNonlinear video scaling supports various modes including PanoramaSupports dynamic scaling for VC-1High-Quality DTV video processor3D motion video deinterlacer with motion object stabilizerEdge-oriented deinterlacer with edge and artifact smootherAutomatic 3:2/2:2/M:N pull-down detection and recovery3D multi-purpose noise reduction for DTV or lousy air/cable inputMPEG artifact removal including de-blocking and mosquito noise reductionArbitrary frame rate conversionMStar Professional Picture Enhancement:
o Dynamic brilliant and fresh color o Dynamic Blue Stretch o Intensified contrast and details o Dynamic Vivid Skin
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o Dynamic sharpened Luma/Chroma edges o Global and local dynamic depth of field perception o Accurate and independent color control o Supports sRGB and xvYCC color processing o Supports HDMI 1.3 deep color format
Programmable 12-bit RGB gamma CLUT
Output Interface
Single/dual link 8/10-bit LVDS outputSupports panel resolution up to Full-HD (1920x1080) @ 60HzSupports TH/TI formatSupports dithering options to 6/8-bit outputSpread spectrum output for EMI suppression
CVBS Video Encoder
Supports all NTSC/PAL TV StandardStand-alone scaling engineProgrammable Hue, Contract, BrightnessSupports TTX/CC/WSS output
CVBS Video Output
Allows CVBS output of all source inputs
2D Graphics Engine
Hardware Graphics Engine for responsive interactive applicationsSupports point draw, line draw, rectangle draw/fill, text draw and trapezoid drawBitBlt, stretch BitBlt, trapezoid BitBlt, mirror BitBlt and rotate BitBltRaster Operation (ROP)Support Porter-Duff
VIF Demodulator
Compliant with NTSC M/N, PAL B, G/H, I, D/K, SECAM L/L' standardsAudio/Video dual-path processorStepped-gain PGA with 25 dB tuning range and 1 dB tuning resolutionMaximum IF gain of 37 dBProgrammable TOP to accommodate different tuner gain and SAW filter insertion
loss to optimize noise and linearity performance
Multi-standard processing with single SAWSupports silicon tuner low IF output architecture
DVB-T/DVB-C Demodulator
Digital carrier frequency offset correction: ±500KHzOptimised for SFN channels with pre/post-cursive echoes inside/outside the guardAcquisition range ±857kHz includes up to 3x: ±1/6 MHz transmitter offsetMeets Nordig Unified 1.0.3, D-Book 5.0, EICTA E-Book/C-Book test requirementITU J.83 Annex A/C, DVB-C (EN 300 429) compliantSupports DVB-C 0.7-7M Baud symbol rate
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±400kHz internal carrier offset recovery range6.8 usecs echo cancellation at 7 Msym/sSupports IF, low-IF, zero-IF inputsUltra-fast automatic blind UHF/VHF channel scan (constellations and symbol rate)
Connectivity
Two USB 2.0 host portsUSB architecture designed for efficient suppor of external storage devices in
conjunction with off air broadcasting
Miscellaneous
DRAM interface supporting two 16-bit DDR2 @ 1066MHzSupports PVRSupports Common Interface for conditional access supportBootable SPI interface with serial flash supportParallel interface for external OneNAND and NAND flash supportPower control module with ultra low powerMCU available in standby mode523-ball LFBGA packageOperating Voltages: 1.26V (core), 1.8V (DDR2), 2.5V and 3.3V (I/O and analog)
7.3. MSTAR Block Diagram
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7.4. Reset Circuit
Reset circuit using for initiliazing main Mstar IC. Reset condition is high and nomal working condition is low for RESET pin.
8. CI INTERFACE
7.1 Block Diagram
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7.1 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
9. T2 Demodulator CXD2820R (U167)
9.1. General Description
This demodulator is optionall for support T2 reception. The Sony CXD2820R is a combined DVB-T2, DVB-T and DVB-C demodulator that conforms to the ETSI EN 302­755 (second generation Terrestrial) ETSI EN 300-744 (Terrestrial) and ETSI EN 300-429 (Cable) standards.
9.2. Features
Single, 41MHz crystal (can be shared with CXD2813Ranalogue demod IC)High performance differential signal ADCRF power level monitor ADCLow IF and high IF (36MHz) mode inputFast 400kHz I2C compatible bus interface
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Quiet I2C interface for dedicated tuner controlAutomatic IF AGC and optional programmableRF AGC/GPIO functionsConfigurable parallel and serial MPEG-2 TS outputs with smoothing buffer3.3V, 2.5V, 1.2V suppliesTemperature range -20°C to +85°CSupplied with full reference design, including software driver, PCB
schematic/layouts, GUI and documentation
3.3V for VDD and 2.5V for VDDQ power supplyAll inputs and outputs are compatible with SSTL_2 interfaceJEDEC standard 400mil 66pin TSOP-II with 0.65mm pin pitchFully differential clock inputs (CK, /CK) operationDouble data rate interfaceSource synchronous - data transaction aligned to bidirectional data strobe (DQS)x16 device has 2 bytewide data strobes (LDQS, UDQS) per each x8 I/OData outputs on DQS edges when read (edged DQ) Data inputs on DQS centers
when write (centered DQ)
Data(DQ) and Write masks(DM) latched on the both rising and falling edges of the
data strobe
All addresses and control inputs except Data, Data strobes and Data masks
latched on the rising edges of the clock
Write mask byte controls by LDM and UDMProgrammable /CAS latency 3 / 4 supportedProgrammable Burst Length 2 / 4 / 8 with both sequential and interleave modeInternal 4 bank operations with single pulsed /RAStRAS Lock-Out function supportedAuto refresh and self refresh supported4096 refresh cycles / 32msFull, Half and Matched Impedance(Weak) strength driver option controlled by
EMRS
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9.3. Pinning
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10. 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 D3 (U157)Protection IC (U145)Over Curent Protection IC (U149)
11. DDR2 SDRAM 8M × 4 BANKS × 16 BIT (W9751G6JB) (U154, U155)
11.1. General Description
The W9751G6JB is a 512M bits DDR2 SDRAM, organized as 8,388,608 words × 4 banks × 16 bits. This device achieves high speed transfer rates up to 1066Mb/sec/pin (DDR2-
1066) for general applications. W9751G6JB is sorted into the following speed grades: -18,
-25 and -3. The -18 is compliant to the DDR2-1066/CL7 specification. The -25 is
compliant to the DDR2-800 (5-5-5) or DDR2-800 (6-6-6) specification. The -3 is compliant to the DDR2-667 (5-5-5) specification. 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 (CLK rising and CLK falling). All I/Os are synchronized with a single ended DQS or differential DQS- DQS pair in a source synchronous fashion.
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11.2. Features
Power Supply: VDD, VDDQ = 1.8 V± 0.1 VDouble Data Rate architecture: two data transfers per clock cycleCAS Latency: 3, 4, 5, 6 and 7Burst Length: 4 and 8Bi-directional, differential data strobes (DQS andDQS ) are transmitted / received
with data
Edge-aligned with Read data and center-aligned with Write dataDLL aligns DQ and DQS transitions with clockDifferential clock inputs (CLK and CLK )Data masks (DM) for write dataCommands entered on each positive CLK edge, data and data mask are
referenced to both edges of DQS
Posted CAS programmable additive latency supported to make command and data
bus efficiency
Read Latency = Additive Latency plus CAS Latency (RL = AL + CL)Off-Chip-Driver impedance adjustment (OCD) and On-Die-Termination (ODT) for
better signal quality
Auto-precharge operation for read and write burstsAuto Refresh and Self Refresh modesPrecharged Power Down and Active Power DownWrite Data MaskWrite Latency = Read Latency - 1 (WL = RL - 1)Interface: SSTL_18
11.3. Electrical Characteristics
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11.4. Pinning
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12. SCALER AND LVDS SOCKETS
12.1. LVDS sockets Block Diagram
12.2. 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.
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13. NAND FLASH MEMORY - MX25L1005 (U158)
13.1. 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.
13.2. Features
Serial Peripheral Interface (SPI) compatible -- Mode 0 and Mode 31,048,576 x 1 bit structure32 Equal Sectors with 4K byte each, Any Sector can be erased individually2 Equal Blocks with 64K byte each, Any Block can be erased individuallySingle Power Supply Operation
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2.7 to 3.6 volt for read, erase, and program operationsLatch-up protected to 100mA from -1V to Vcc +1VLow Vcc write inhibit is from 1.5V to 2.5V
13.3. Absolute Maximum Ratings
RATING VALUE Ambient Operating 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
0°C to 70°C
13.4. 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
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14. NAND FLASH MEMORY – NAND512XXA2C (U162)
14.1. 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.
14.2. 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 VPage 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 μs (3 V)/15 μs (1.8 V) (max) o Sequential access: 30 ns (3 V)/50 ns (1.8 V) (min) o Page program time: 200 μs (typ)
Copy back program mode
Fast block erase: 2 ms (typ)
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Status registerElectronic signatureChip Enable ‘don’t care’Security features
o OTP area
Serial number (unique ID) optionHardware 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 packagesDevelopment tools
o Error correction code models o Bad blocks management and wear leveling algorithms
14.3. Pinning
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15. USB2.0 to Fast Ethernet – ASIX AX88X72A (U171)
15.1. General Description
The AX88772A/AX88172A Low-pin-count USB 2.0 to 10/100M Fast Ethernet controller is a high performance and highly integrated ASIC which enables low cost, small form factor, and simple plug-and-play Fast Ethernet network connection capability for desktops, notebook PC’s, Ultra-Mobile PC’s, docking stations, game consoles, digital-home appliances, and any embedded system using a standard USB port.
The AX88772A/AX88172A features a USB interface to communicate with a USB Host Controller and is compliant with USB specification V1.1 and V2.0. The AX88772A/AX88172A implements 10/100Mbps Ethernet LAN function based on IEEE802.3, and IEEE802.3u standards with 24KB of embedded SRAM for packet buffering. The AX88772A/AX88172A integrates an on-chip 10/100Mbps Ethernet PHY to simplify system design.
The AX88172A provides an optional External Media Interface (EMI) for external PHY or external MAC for different application purposes. The EMI can be a media-independent interface (MII) for implementing 100BASE-FX Ethernet or HomePNA functions. The EMI can also be a Reverse-MII or Reverse Reduced-MII (Reverse-RMII) for glueless MAC-to­MAC connections to any MCU with Ethernet MAC MII or RMII interface. In addition, the EMI can be configured to Dual-PHY mode allowing AX88172A to act as an Ethernet PHY or USB 2.0 PHY for external MAC device that needs Ethernet and USB interfaces in their system applications. The optional serial interface such as I2C, SPI, and UART are provided as a control channel from the USB Host Controller to communicate with the external MCU chip.
15.2. Features
Single chip USB 2.0 to 10/100M Fast Ethernet controller – AX88772A
USB Device Interface
Integrates on-chip USB 2.0 transceiver and SIE compliant to USB Spec 1.1 and
2.0
Supports USB Full and High Speed modes with Bus-Power or Self-Power
capability
Supports 4 or 6 programmable endpoints on USB interfaceHigh performance packet transfer rate over USB bus using proprietary burst
transfer mechanism
Supports USB to Ethernet bridging or vice versa in hardware
Fast Ethernet Controller
Integrates 10/100Mbps Fast Ethernet MAC/PHYIEEE 802.3 10BASE-T/100BASE-TX compatibleSupports twisted pair crossover detection and auto-correction (HP Auto-MDIX)Embedded 16KB SRAM for RX packet buffering and 8KB SRAM for TX packet
buffering
Supports both Full-duplex with flow control and
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Half-duplex with backpressure operationSupports 2 VLAN ID filtering, received VLAN Tag (4 bytes) can be stripped off or
preserved MAC/PHY loop-back diagnostic capability
Support Wake-on-LAN Function
Supports Suspend Mode and Remote Wakeup via Link-up, Magic packet, MS
wakeup frame and external pin
Optional PHY power down during Suspend Mode
Versatile External Media Interface
Optional MII interface in MAC mode allows AX88172A to work with external
100BASE-FX Ethernet PHY or HomePNA PHY
Optional Reverse-MII or Reverse-RMII interface in PHY mode allows AX88172A to
work with external HomePlug PHY or glueless MAC-to-MAC connections
Optional Reverse-MII interface in Dual-PHY mode allows AX88172A to act as an
Ethernet PHY or USB 2.0 PHY for external MAC device that needs Ethernet and USB in system application
Supports 256/512 bytes (93c56/93c66) of serial EEPROM (for storing USB
Descriptors)
Supports automatic loading of Ethernet ID, USB Descriptors and Adapter
Configuration from EEPROM after power-on initialization
Provides optional serial interface, I2C, SPI and UARTIntegrates on-chip voltage regulator and only requires a single 3.3V power supply12MHz and 25Mhz clock input from either crystal or oscillator sourceIntegrates on-chip power-on reset circuit
15.3. Block Diagram
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15.4. Pinning
16. LM1117(U175, U180, U181)
16.1. 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 mi tantalum capacitor is required at the output to improve the transient response and stability.
16.2. Features
Available in 1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable VersionsSpace Saving SOT-223 PackageCurrent Limiting and Thermal ProtectionOutput Current 800mALine Regulation 0.2% (Max)Load Regulation 0.4% (Max)Temperature RangeLM1117 0°C to 125°CLM1117I -40°C to 125°C
nimum of 10μF
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16.3. Applications
2.85V Model for SCSI-2 Active TerminationPost Regulator for Switching DC/DC ConverterHigh Efficiency Linear Regulators 1532” TFT TV Service Manual 10/01/2005Battery ChargerBattery Powered Instrumentation
16.4. Absolute Maximum Ratings
16.5. Pinning
17. MP2012 (U176)
17.1. 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.
17.2. Features
2.7-6V Input Operation RangeOutput Adjustable from 0.8V to VIN1μA Max Shutdown Current.Up to 95% Efficiency
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100% Duty Cycle for Low Dropout
Pin
Name
Description
Applications1.2MHz Fixed Switching FrequencyStable with Low ESR Output CeramicCapacitorsThermal ShutdownCycle-by-Cycle Over Current ProtectionShort Circuit ProtectionAvailable in 6-pin 3x3mm QFN
17.3. Pinning
#
1 FB Feedback input. An external resistor divider from
the output to GND, tapped to the FB pin sets the output voltage.
2 GND,
Exposed
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
6 EN Enable input, “High” enables MP2012. EN is
Ground pin. Connect exposed pad to ground plane for proper thermal performance.
decoupling ceramic near this pin.
pulled to GND with 1Meg internal resistor.
18. RTA8283A (U23, U173)
18.1. 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 (<3μA) shutdown mode provides output disconnect, enabling easy power management in batterypowered systems. The RT8283A is available in a SOP-8 package.
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18.2. Features
Pin No.
Pin
Description
±1.5% High Accuracy Feedback VoltageIntegrated N-MOSFET SwitchesCurrent Mode ControlFixed Frequency Operation : 340kHzOutput Adjustable from 0.8V to 20VUp to 95% EfficiencyThermal Shutdown Protection
18.3. Pinning
Name
1 BOOT
2
3
4, 9 (Exposed
Pad)
5
6
7
8
VIN Input Supply 4.5V to 23V. Must bypass with a suitably
SW Phase Node--Connect to external L-C filter..
GND Ground.
FB Feedback Input pin is connected to the converter output.
COMP Compensation Node. COMP is used to compensate the
EN Enable Input Pin. Logic high enables the converter; a
SS Soft-Start Control Input. SS controls the soft-start period.
Bootstrap for high-side gate driver. Connect a 0.1μF or greater ceramic capacitor from BOOT to SW pins.
large ceramic capacitor.
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.
regulation Control loop. Connect a series RC network from COMP to GND. In some cases, an additional capacitor from COMP to GND is required.
logic low forces the RT8253A into shutdown mode. Attach this pin to VIN with a 100kΩ pull up resistor for automatic startup.
Connect a capacitor from SS to GND to set the soft-start
period. A 0.1
13.5ms.
μF capacitor sets the soft-start period to
19. MP1583 (U174)
19.1. 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
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stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal
Pin
Pin
Description
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.
19.2. Features
3A Output CurrentProgrammable Soft-Start100mΩ Internal Power MOSFET SwitchStable with Low ESR Output Ceramic CapacitorsUp to 95% Efficiency20μA Shutdown ModeFixed 385KHz FrequencyThermal ShutdownCycle-by-Cycle Over Current ProtectionWide 4.75V to 23V Operating Input RangeOutput Adjustable from 1.22V to 21VUnder-Voltage Lockout
19.3. Pinning
No.
1 BOOT High-Side Gate Drive Bootstrap Input. BS supplies the drive for the
2 3
4 5
6
7
8
Name
high-side N-Channel MOSFET switch.
IN Power Input. Drive IN with a 4.75V to 23V power source.
SW Power Switching Out is the switching node that supplies power to the
output
GND Ground.
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.
COMP Compensation Node is used to compensate the regulation control
loop.
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.
SS Soft-Start Control Input. SS controls the soft-start period.
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20. FDC642
20.1. General Description
This P-Channel 2.5V specified MOSFET is produced using Fairchild’s advanced PowerTrench 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.
20.2. Features
Max rDS(on) = 65 mΩ at VGS = -4.5 V, ID = -4.0 AMax rDS(on) = 100 mΩ at VGS = -2.5 V, ID = -3.2 AFast switching speedLow gate charge (11nC typical) High performance trench technology for extremely low rDS(on)SuperSOTTM-6 package: small footprint (72% smaller than standard SO-8);
Termination is Lead-free and RoHS Compliant
® process that has been especially tailored to minimize on-state resistance
low profile (1 mm thick)
20.3. Pinning
21. FDC604P
21.1. 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.
21.2. Features
–5.5 A, –20 V. RDS(ON) = 33 mΩ @ VGS = –4.5 VRDS(ON) = 43 mΩ @ VGS = –2.5 VRDS(ON) = 60 mΩ @ VGS = –1.8 VFast switching speed.High performance trench technology for extremely low RDS(ON)(S)
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21.3. Pinning
22. CONNECTORS
22.1. SCART (SC1)
22.2. HDMI (CN707,CN708)
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22.3. VGA (CN132)
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23. SERVICE MENU SETTINGS
In order to reach service menu, First Press “MENU” Then press the remote control code two times, which is
In first screen following items can be seen:
“4725”.
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23.1. Video Settings
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23.2. Audio Settings
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23.3. Options
Options-1
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Options-2
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23.4. Tuning Settings
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23.5. Source Settings
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23.6. Diagnostic
23.7. USB Operations
USB operations option can not be used directly. It can be used for updating panel tool, hw congiguration etc.
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24. SOFTWARE UPDATE
In MB60 project there is only one software. From following steps software update procedure can be seen:
1. MB60_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.
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25. TROUBLESHOOTING
25.1. 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 MB60, related connectors for power supply cards.
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STBY_ON/OFF should be low for standby on condition, please check R1677.
25.2. 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.
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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 MB60.
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25.3. 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.
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25.4. IR Problem
Problem: LED or IR not working Check LED card supply on MB60 chasis.
25.5. Keypad Touchpad Problems
Problem: Keypad or Touchpad is not working
Check keypad supply and KEYBOARD pin on MB60.
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25.6. 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.
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25.7. 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.
25.8. 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 voltage­meter.
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25.9. 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.
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25.10. 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.
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