Samsung Orchid-DLP TV HLT5676SX/XAA How to enter service mode, CCA adjustments, Calibration, SMPS circuit diagram

Service Adjustment
Vertical / Horizontal Position Adjustment
1. Turn off the power to put the unit into the STAND-BY mode.
2. In order to enter the Service Mode, Press "Mute" > "1" > "8" > "2" > "POWER" buttons on the Remote Control.
3. Select "Service" on the first display of the Service mode menu.
4. Select the H/V-Position for vertical and horizontal positioning by using the ▲ ▼ (Up & Down) buttons.
Press the (Left or Right) buttons to adjust the screen position.
Do not set the V-position value to 34 or 35. (Setting to these values will cause horizontal lines on the right side of the screen.)

How to Access Service Mode

Turn off the power to put the unit into the STAND-BY mode.
2. In order to enter the Service Mode, Press "Mute" > "1” > "8" > "2" > "POWER" button on the Remote Control.
In case entry into SERVICE MODE is unsuccessful, repeat the procedures above.
3. Initial DISPLAY State in times of Service Mode Switch over.

Buttons operations within Service Mode

MENU	Full Menu Display / Move to Parent Menu
Direction keys ▲ / ▼	Item Selection by Moving the Cursor
Direction keys L/R	Data Increase/Decrease for the Selected Item
Source	Cycles through the active input source that are connected to the unit
Enter	Item Selection/execution

CCA Adjustment Service Methods:

CCA Adjustment is needed after changing a DMD board or Main board
CCA : In DLP TV, even the same RGB color may differ depending on the light engine. CCA (Color Coordinate Adjustment) corrects the color to achieve the color accuracy. CCA performs color correction after measuring and inputting the current light engine's data on actual color coordinates for displayed Red, Green, Blue,Yellow,Cyan and White color patterns, using a color coordinate measuring equipment. At this moment, color correction is performed below.

1) This procedure is needed if the Main Board or DMD Board is changed.
2) Turn off power to put the unit into the STAND-BY mode.
3) In order to enter the Service Mode, press "Mute">"1">"8">"2">"Power" buttons on the Remote Control.

4) Select "Option" on the display of the Service mode menu
5) If the DMD PCB is changed, Press the ▼ ▲(Up or Down) button to move to Digital→DMD, then press ENTER to select

6) Then Press ENTER to save CCA information to the DMD board
7) If the Main PCB is changed, Press the ▼ ▲(Up or Down) button to move to DMD→Digital, then press ENTER to select.

8) Then Press ENTER to save CCA information to the Main board

Attention
Performing CCA is independent on current display's resolution and input signal type if you don't measure color coordinates data.
Measuring color coordinates data requires specific equipment not possessed by service per sonnel, that makes performing manual adjustment impossible. Adjusting CCA is applied to all the signal mode.
Don't change desired value because it will be harmful to the color of the SET.

ACTUATOR GAIN Adjustment

1. Before Adjustment

1) Turn off the power to put the unit into the STAND-BY mode.

2) In order to enter the Service Mode, Press "Mute" → "1" → "8" → "2" → "POWER" button on the Remote Control.

3) Select "Service" on the first display of the Service mode menu.

4) ACTUATOR GAIN1,2¸¦ Actu Gain Control or Actu Gain Detail.

5) The Actuator gain setup screen will be displayed.

6) Press the (Left of Right) button to adjust. check the smooth picture at it's minimum and maximum values of changing ,then adjust to the mean value.

Actu Gain Detail [In case of controlling with Crosshatch Pattern.]

You can see the Crosshatch Pattern when you press the “L/R” button to adjust.

CAUTION: Actu Gain Detail is just controlled by your eye because control value doesn’t appear In picture.

Making Adjustments
1) Change the actuator values to eliminate saw tooth shapes.
- To fine tune, increase the data value ensuring that you get the center between the starting and ending points of the disappearing saw tooth shape.

SMPS (Power Supply Regulator Board) circuit diagram

Software Upgrade

Insert a USB drive containing the firmware upgrade into the USB Upgrade Port on t2. Press the MENU button.
Press the L/R button to select Setup, then press the ENTER button.
Press the ▲or ▼ button to select SW Upgrade, then press the ENTER button.
The message Scanning for USB... It may take up to 30 seconds. is displayed. Please be careful to not disconnect the power or remove the USB drive while upgrades are being applied.
The TV will shut off and turn on automatically after completing the firmware upgrade. Please check the firmware version after the upgrades are complete.
The firmware and upgrade process may be different by country and region. 

Calibration

Tilt the Screen
1. Remove the 20 point screws. Remove the Bottom cover.
: BH,+,S,M4,L10,ZPC(BLK),SWRCH18 (6ea)
: BH,+,B,M4,L12,ZPC(BLK),SWRCH18 (14ea)

2. Loosen the 3 points screws.
＊Left 2 points screws
: PWH,S,M3,L8,ZPC(YEL),SWRCH18A
＊Right 1 points screw
: PWH,S,M3,L7,ZPC(YEL),SWRCH18A

3. Turn off the power to put the unit into the STAND-BY mode.In order to enter the Service Mode, Press "Mute" > "1" > "8" > "2" > "POWER" buttons on the Remote Control.Select "DDP3021(LED)" on the first display of the Service Mode menu. Press the ▲ ▼(Up or Down) buttons, then press ENTER to select. Press the (Right) button until you see the CROSSHATCH PATTERN.Then, adjust the screen position, by holding both of the upper corners of the DMD board.

Even when those screws are loosened, the board does not separate it can be moved within the adjustable range because there are spring screws at the center holding it.
When adjusting the screen, it is better for two people to work together.
One person should adjust the picture position while the other person looks at the screen.
If only one person is performing this adjustment, back port should be removed, and image on the screen monitored through there.
The movement direction of the board and the picture are different.
- When it is tilted to the left, the screen tilts to the right.
- But, When the board is lifted upward, the screen lifted upward, too.
When the picture adjustment is completed:
First, tighten the two screws on the left of the DMD board and then slowly tighten the one screw on the bottom right.
Be careful not to touch the board while tightening the screws.
(When using an electric-powered screwdriver, be careful that the torque is not too high.)

Align the Focus

1. Remove the DMD FAN.

But don't disconnect connector

2. Turn the knob to find best focus at the screen the knob is black wheel under the heat sink.

Noise:

Internal noise may be caused by a foreign substance on the fan or driving device.

For a DLP TV, the lamp fan, DMD board fan and color wheel are vulnerable to noise. Sometimes the connector wire around the lamp or DMD fan makes contact with the fan, while the color wheel is protected inside the module and cannot make contact with any nearby wires. However the color wheel sensor or the drive motor may cause noise by making contact with the color wheel.

As the color wheel uses an air bearing system, it has a very slight possibility of creating internal noise.

When irregular noise occurs for no particular reason, check the inside of the TV for any foreign substances.

The DLP projection TV may cause noise as the physical screen is empty inside, causing a resonance to a particular frequency.

Thus a low vibration is not a malfunction.

Any 'creaking' noise is mostly from the structure of the device itself. A short, harsh noise may occur from a distortion or malformation due to thermal expansion between the metal joints, screws and loaded parts, respectively. Any intermittent 'creaking' noise can be removed by loosening the screws.

4. A black screen with the lamp on: Replace the DMD board.

5. Line Pattern: Regular line patterns occur vertically or horizontally: Replace the DMD board.

6. Voice Distortion: Replace the main or rear board.

7. Outside Light: This is not a product malfunction, but a possible installation or human error. This occurs when the projected light from the surrounding illumination reflects onto the screen. This disappears as the TV starts operating and the TV lamp gets brighter. However, you can avoid outside light by changing the position of the TV or the installation angle.

Decreasing the illumination or changing the indoor lighting may work.

8. Screen Flip-over

Enter Factory mode in DDP3021 and perform H-Flip (flip horizontally) and V-Flip (flip vertically).

The screen will flip over horizontally or vertically.

Other Screen Errors:

Video Circuit Error Checking
Basics
> The DDP3021 on the DMD board has a feature to display internal test patterns.
> SDP62, which is an end port in the digital board, has a feature to display internal test patterns.
> The rear board is the first output and the main board is the second one, followed by DMD, which is the final one.

Diagnosis By Module
1. Access Service Mode
(In Standby mode, press "Mute", "1", "8", "2" and "Power" to turn the screen on and enter service mode)
2. Check if there is an error in the DMD board
DDP3021 > TEST PATTERN > Press the right arrow key:
Options of FULL WHITE, BLACK, RED, GREEN and BLUE PATTERN are displayed on the screen.
If "Pattern" does not appear, this is a DMD board error.
3. Check if there is an error in the main board before the DMD.
When the DMD board has been determined to be error free based on the test patterns:
FACTORY MODE > SDP62 > TEST PATTERN normal display: no error in the main board.
If "Pattern" does not appear, you have to check a rear board first, and check a DMD Board second, next check a main Board.

Click on the pictures to magnify

Daewoo DTQ21A24N, DAEWOO DTQ21A35R – NTSC CRT Color TV - TMPA8895 - How to enter service mode, adjustments, circuit diagram

Used ICs - TMPA8895, TA1343, LA78041(Vertical scan output), BSC25-NXXX(FBT), 5Q1265RT(STR), AN17821A(Audio output), 2SC5296(Horizontal scan output transistor) 

TMPA8895CSNG7FU7 (NTSC)  ADJUSTMENT

ENTER FACTORY MODE - Uses the factory's remote controller

Press “D-mode” key three time (factory key) to enter factory’s adjustment menu.
At first enter “D-mode”. 

Press “DISP” enter again WHITE BALANCE mode. 

Press again “DISP” enter factory mode.
Hold the volume minus at the keyboard until sound volume down to zero. 

Press again “DISP” enter “D-mode”

ENTER FACTORY MODE F7~F15

Press “2483”,”6483”,”6568” enter F7, and also open F8-F15. 

Press “Mute” Key to turn Page Up and “RETURN” key to turn Page Down for factory mode menu. 

Press figure Key 1 2 3 4 5 6 7 to enter “factory” mode F1~F7.

Press figure key “0” to enter WHITE BALANCE mode.

EXIT FACTORY MODE
1 Press “D-mode” or “DISP” to exit from the “factory” menu.
2 Press power switch, exit “factory’s mode.

EXPLANATION FOR ADJUSTMENT SPEED KEY

After entering factory mode, some remote controller key function will change to suit for the production adjustment.

1) Press “MUTE” key to turn page up, press “RETURN” key to turn page down.

 Press “MENU” to choose adjustment item in pageF10 F14 F15 .

2) Press “CH+” and “CH-“ key to select item, and press “VOL+” and “VOL-” key to change data value.

3) Press “SLEEP” key to display CHIP inner 8 kinds test signal. That is black signal, white signal, cross signal and pane signal.

Circuit Diagram (Schematic) [Click on the pictures to Zoom in)

AGING MODE

1) With factory remote controller to press “D-mode” directly enter AGING mode, screen will display “factory”. 

Press “DISP” key to exit “factory” to enter “WHITE BALANCE”.

2) At TV mode, With user remote controller, press the “MENU” key to turn to “TUNING” menu, 

Press number keyboard in 6 seconds “2483”, “6483”, “6568”, then enter AGING mode. 

At AV mode, direct press number keyboard “2483”, “6483”, “6568”, then enter factory LOGO debugging.
At “AGING” mode, Press “MENU” to display main Menu to adjust all data.

WHITE BALANCE MODE
1) At AGING mode, press “D-mode” exit “factory” and to enter WHITE BALANCE mode.
2) Press “D-mode” key two time (factory key) to enter WHITE BALANCE mode.
3) At “factory” mode, press figure key “0” enter WHITE BALANCE mode.
4) At WHITE BALANCE mode, press “MUTE”. One horizontal bright line will appear on screen.

Use “1,4” key to adjust RCUT, “2,5” key to adjust GCUT, “3,6” key to adjust BCUT.

Samson Sub120A - Active Sub-Woofer - Circuit diagram - Power Transisotrs TIP36C-TIP35C output

Used semiconductors: 2SD1563, 2SA1249, TIP35C, TIP36C, NJM4560

Circuit diagram [Click on the circuit diagram to magnify]

Vestel 17MB60 LCD TV board – functions and description of used ICs.

  This TV board is used with many brand LCD TVs, one among the best proved TV kit at present – used with Sharp LC-19LE510E/K, Sharp LC-22LE510E/K, Sharp LC-24LE510E/K - LED LCD COLOUR TELEVISION m DVB-T / DVB-C (HDTV), PAL B/G, I / SECAM B/G, D/K, L/L’ SYSTEM COLOUR TELEVISION -  It will be better to know the functions of the used ICs, as it will make troubleshooting easy. 

 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 logic 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.

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.
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

> Receiving Channel (Digital, Center frequency):

> 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, Unbalanced
Band 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

Pin no. Terminal Name Pin Description

1 Ant Power Active Antenna Power

2 B+ +5V, Supply Voltage (Preamplifier, DC/DC)

3 RF AGC RF AGC (internal or external mode)

4 CL I2C Serial Clock

5 DA I2C Serial Clock

6 BP +5V, Supply Voltage (RF Amp, PLL, IF Amp)

7 BT(T.P) +33V, within DC/DC circuit

8 AS I2C Address Selection of the PLL

9 IF AGC Control voltage for the IF AGC

10 IF OUT + Output 2 of the IF Amplifier

11 IF OUT - Output 1 of the IF Amplifier

12 AIF Output IF output of the Analog Broad-Band.

AUDIO AMPLIFIER STAGE WITH AZAD2102(U163, U164)

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%, Vdd=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.

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.

AUDIO AMPLIFIER STAGE WITH TPA3113(U168)
General Description
17MB60 uses a 6W Class D Mono Audio Amplifiers 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 Ω. 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.
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.

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, standby 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.

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 should be logic low. After any short detection, SW forces LEDs on LED card to blink.

MICROCONTROLLER – MSTAR(U157)
General Description
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 competitive multi-media DTV solution. For ATV users, the MSD9WB7PX-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 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.

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 Demodulator> A Multi-Standard A/V Format Decoder> The MACE-5 Video Processor> Home Theater Sound Processor> Peripheral and Power Management 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 profiles (Optional)> Supports 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> Supports resolutions for all DVB, ATSC, HDTV, DVD and VCD> Supports resolution up to 1080p@30fps> Supports CABAC and CAVLC stream types> Processing of ES and PES streams, extraction and provision of time stamps> Up to 40 Mbits bit rate (Bluray spec.) 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: Dolby, SRS, BBE, QSound, Audyssey> Supports digital audio format decoding:> MPEG-1, MPEG-2 (Layer I/II), MP3, Dolby Digital (AC-3), AAC-LC> Supports Optional Dolby Digital Plus, Dolby Pulse, and MS10 multi-stream 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 including Mic. Input

> 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

> Three 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 Enhancemento 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/DVB-C Demodulator> Digital carrier frequency offset correction: ±500KHz> Optimized 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> ITU J.83 Annex A/C, DVB-C (EN 300 429) compliant.

> Supports DVB-C 0.7-7M Baud symbol rate

> ±400kHz internal carrier offset recovery range

> 6.8 μsecs 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 suppor of external storage devices in conjunction with off air broadcasting

Miscellaneous

* DRAM interface supporting two 16-bit DDR2 @ 1066MHz

* Supports PVR

* Supports Common Interface for conditional access support

* Bootable SPI interface with serial flash support

* Parallel interface for external OneNAND and NAND flash support

* Power control module with ultra low power

* MCU available in standby mode

* 523-ball LFBGA package

* Operating Voltages: 1.26V (core), 1.8V (DDR2), 2.5V and 3.3V (I/O and analog)

Reset Circuit
Reset circuit using for initializing main MStar IC. Reset condition is high and normal working condition is low for RESET pin.

Note R1668 is connected to 3V3 supply line, and is the reset voltage source. If this resistor opens, or 3V3 Voltage is absent, or C1016 has damaged [Leaky], there will be no voltage at the reset point, and the Micorcontroller won't reset, resulting a total inoperative set.

In many cases, the absence of the 3V3 voltage noted.

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 μController

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 external 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 Current Protection IC (U149)

DDR2 SDRAM 8M × 4 BANKS × 16 BIT (W9751G6JB) (U154, U155)
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 066Mb/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.

Features> Power Supply: VDD, VDDQ = 1.8 V± 0.1 V> Double Data Rate architecture: two data transfers per clock cycle> CAS Latency: 3, 4, 5, 6 and 7> Burst Length: 4 and 8> Bi-directional, differential data strobes are transmitted / received with data> Edge-aligned with Read data and center-aligned with Write data> DLL aligns DQ and DQS transitions with clock> Differential clock inputs (CLK and CLK )> Data masks (DM) for write data> Commands 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 bursts> Auto Refresh and Self Refresh modes> Precharged Power Down and Active Power Down> Write Data Mask> Write Latency = Read Latency - 1 (WL = RL - 1)> Interface: SSTL_18

Panel Supply Switch Circuit
This switch is used to open and close panel supply of TCON. It is controlled by port of main μController.
Also with this circuit panel sequence could be adjusted correctly. 3 panel supplies are connected to this circuit. All of them are optional according to panels.

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.

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

RATING VALUE

Ambient Operating Temperature 0°C to 70°C

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

NAND FLASH MEMORY – NAND512XXA2C (U162)

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.

Features

> High density NAND flash memories

> 512-Mbit memory array

> Cost effective solutions for mass storage applications

> NAND interface

> x8 or x16 bus width

> Multiplexed address/ data

> Supply voltage: 1.8 V, 3 V

> Page size

> x8 device: (512 + 16 spare) bytes

> x16 device: (256 + 8 spare) words

> Block size

> x8 device: (16K + 512 spare) bytes

> x16 device: (8K + 256 spare) words

> Page read/program

> Random access: 12 μs (3 V)/15 μs (1.8 V) (max)

> Sequential access: 30 ns (3 V)/50 ns (1.8 V) (min)

> Page program time: 200 μs (typ)

> Copy back program mode

> Fast block erase: 2 ms (typ)

> Status register

> Electronic signature

> Chip Enable ‘don’t care’

> Security features

* OTP area

> Serial number (unique ID) option

> Hardware data protection

* Program/erase locked during power transitions

> Data integrity

* 100,000 program/erase cycles (with ECC)

* 10 years data retention

> RoHS compliant packages

> Development tools

* Error correction code models

* Bad blocks management and wear leveling algorithms

USB2.0 to Fast Ethernet – ASIX AX88X72A (U171)
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-andplay 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-to-MAC 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.

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 interface> High 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/PHY> IEEE 802.3 10BASE-T/100BASE-TX compatible> Supports 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> Half-duplex with backpressure operation> Supports 2 VLAN ID filtering, received VLAN Tag (4 bytes) can be stripped off or preserved MAC/PHY loop-back diagnostic capability.

> 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 UART> Integrates on-chip voltage regulator and only requires a single 3.3V power supply> 12MHz and 25Mhz clock input from either crystal or oscillator source> Integrates on-chip power-on reset circuit

LM1117(U175, U180, U181)

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 band-gap 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 10μF tantalum capacitor is required at the output to improve the transient response and stability.

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

Applications> 2.85V Model for SCSI-2 Active Termination> Post Regulator for Switching DC/DC Converter> High Efficiency Linear Regulators 15> Battery Charger> Battery Powered Instrumentation

MP2012 (U176)
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.
Features> 2.7-6V Input Operation Range> Output Adjustable from 0.8V to VIN> 1μA 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

RTA8283A (U23, U173)
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 battery powered systems. The RT8283A is available in a SOP-8 package.
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

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.

Features

> 3A Output Current

> Programmable Soft-Start

> 100mΩ Internal Power MOSFET Switch

> Stable with Low ESR Output Ceramic Capacitors

> Up to 95% Efficiency

> 20μA Shutdown Mode

> Fixed 385KHz Frequency

> Thermal Shutdown

> Cycle-by-Cycle Over Current Protection

> Wide 4.75V to 23V Operating Input Range

> Output Adjustable from 1.22V to 21V

> Under-Voltage Lockout

FDC642
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.
Features> Max rDS(on) = 65 mΩ at VGS = -4.5 V, ID = -4.0 A> Max rDS(on) = 100 mΩ 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

DC604P
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.
Features> –5.5 A, –20 V. RDS(ON) = 33 mΩ @ VGS = –4.5 V> RDS(ON) = 43 mΩ @ VGS = –2.5 V> RDS(ON) = 60 mΩ @ VGS = –1.8 V> Fast switching speed.> High performance trench technology for extremely low RDS(ON)(S)