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         2008-03-14 

LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK 

 45 

 

< During external connection > No picture on the monitor (1) 

↓

  

No picture appears on SCART1 - connected monitor during the tuner (U/V) reception.

 

↓

  

 

 

 

 

 

TERMINAL_UNIT:

    

 

↓ 

 

 

 

 

 

 

 

↓NO 

 

 

 

 

 

 

 

↓NO 

 

 

 
 

< During external connection > No picture on the monitor (2) 

SCART2: 

   

↓

  

No picture from SCART1 appears on SCART2-connected monitor. 
NOTE:  Normally, if the screen during display is sent to SCART2, no picture is sent to SCART2.

 

↓

  

 

 

 

 

 

TERMINAL_UNIT:

    

 

↓ 

 

 

 

 

 

 

 

↓NO 

 

 

 

 

 

 

 

↓NO 

 

 

Is CVBS signal output into pin (19) of CN1901 (SCART1)?

 

YES 

 

Check the setting of an external input device that connects of 
CN1901.

 

Refer to “The picture doesn't appear in all modes.”

 

Is TUNER_CVBS signal output into pin (21) of CN1901 (SCART1)?

YES 

 

Check the line between CN1901 and TU1101.

Checklist: 
1)  Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device? …Set it to “CVBS”, “RGB”, “AUTO”. 
2)  Is ANT-CABLE disconnected or connected improperly? …Connect it correctly as per the operation manual. 
3)  The picture is sent to the monitor in a CVBS signal if the source during display is ATV, CVBS of SCART1-2, AV side. 

When sent by component, etc., that signal is not sent to the monitor. 

4)  When the monitor picture is not sent and is not displayed on the monitor, refer to “No picture” for each terminal. 
5)  The video output from SCART1 is not the monitor output (output of the picture now watching). 

The picture of the last selected TV channel is always sent to SCART1. (Specification)

Is CVBS signal output into pin (19) of CN1902 (SCART2)?

 

YES 

 

Check the setting of an external input device that connects of 
CN1902.

 

Refer to “The picture doesn't appear in all modes.”

 

Is CVBS signal output from pin (A13) of IC U4201 into pin (19) of 
CN1902 (SCART2)?

 

YES 

 

Check the line between CN1902 and IC U4201.

Checklist: 
1)  Is the Signal Type (item) in MENU-Option-Input Select equal to Signal Type of an external device? …Set it to “CVBS”,. 
2)  The picture is sent to the monitor in a CVBS signal if the source during display is TV, CVBS of SCART1-2, AV side. 

When sent by component, etc., that signal is not sent to the monitor. 

3)  When the monitor picture is not sent and is not displayed on the monitor, refer to “No picture” for each terminal. 
4)  The video output from SCART1 is not the monitor output (output of the picture now watching). 

The picture of the last selected TV channel is always sent to SCART1. (Specification)

LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK 
 

46  

CHAPTER 5. 

 

 

[1] MAJOR IC INFORMATIONS 

 

1. MAJOR IC INFORMATIONS 

GENERAL DESCRIPTION 
The MST9A885GL  is a high performance and fully intergrated IC for multi-function LCD monitor/TV with resolution up to SXGA 
(1280x1024)/WXGA+(1400x990). It is configured with an integrated triple-ADC/PLL,an integrated DVI/HDCP/HDMI receiver.a multi-standard TV video and 
audio decoder,a video de-interlacer,a scalling engine,the MStarACE-3 color engine,an on –screen display controller,an 8-bit MCU and a built –in output 
panel interface.By use of external frame buffer,3-D video decoding and processing are fulfilled for high-quality TV applications.To futher reduce system 
costs,the MST9A885GL als integrates intelligent power management control capability for green-mode requirements and spread-mode requirements and 
spread-spectrum support for EMI management. 
 

Single display LCD TV controller with PC &multimedia display functions 

Input supports up to SXGA & 1080P 

Panel supports up to SXGA(1280x1024) /WXGA+(1440x900) 

TV decoder with 3-D comb filter 

Multi-standard TV sound demodulator and decoder  

10-bit triple-ADC for TV and RGB/YPbPr  

10-bit video data processing 

Integrated DVI/HDCP/HDMI compliant  receiver 

High-quality scaling engine & 3-D video de-interlacer

  

3-D video noise reduction    

MStarACE-3 picture/color processing engine 

Embedded On-Screen Display (OSD) control er engine 

Built-in MCU supports PWM & GPIO 

Built-in dual-link 8-bit LVDS transmitter  

5-volt tolerant inputs 

Low EMI and power saving features  

256-pin LQFP 

Supports NTSC M, NTSC-J, NTSC-4.43, PAL (B,D,G,H,M,N,I,Nc), and SECAM 

Automatic TV standard detection 

Motion adaptive 3-D comb filter for NTSC/PAL 

8 configurable CVBS & Y/C S-video inputs 

Supports Teletext level-1.5, WSS, VPS,Closed-caption, and V-chip 

CVBS video output 

Digital low IF architecture 

Stepped-gain PGA with 26 dB tuning range and 1 dB tuning resolution 

Maximum IF analog gain of 37dB in addition to digital gain 

Programmable TOP to accommodate different tuner gain to optimize noise and linearity performance 

 

 

Supports BTSC/NICAM/A2/EIA-J demodulation and decoding 

FM stereo & SAP demodulation 

L/Rx4, mono, and SIF audio inputs 

L/Rx3 loudspeaker and line outputs 

Supports sub-woofer output 

Built-in audio output DAC’s 

Audio processing for loudspeaker channel, including volume, balance, mute, tone, EQ,and virtual stereo/surround 

Optional advanced surround available  (Dolby1, SRS2, BBE3… etc) Note 

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I2S digital audio input & output 

S/PDIF digital audio input & output 

HDMI audio channel processing capability 

Programmable delay for audio/video synchronization 

　

  

Three analog ports support up to 150MHz 

Supports PC RGB input up to SXGA@75Hz    

Supports HDTV RGB/YPbPr/YCbCr 

Supports Composite Sync and SOG(Sync-on-Green) separator 

Automatic color calibration 

　

Supports TMDS clock up to 225MHz @ 1080P 60Hz with 12-bit deep-color resolution    

Single link on-chip DVI 1.0 compliant receiver 

High-bandwidth Digital Content Protection(HDCP) 1.1 compliant receiver 

High Definition Multimedia Interface (HDMI)1.3 compliant receiver with CEC support 

Long-cable tolerant robust receiving 

Support HDTV up to 1080P 

Auto input signal format and mode detection    

Auto-tuning function including phasing,positioning, offset, gain, and jitter detection 

Sync detection for H/V Sync 

One 4:2:2 ITU-R BT.656 8-bit digital video input port 

Fully programmable shrink/zoom capabilities    

Nonlinear video scaling supports various modes including Panorama 

 

3-D motion adaptive video de-interlacer 

Edge-oriented adaptive algorithm for smooth low-angle edges 

 Automatic 3:2 pull-down & 2:2 pull-down detection and recovery 

MStar 3rd Generation Advanced Color Engine(MStarACE-3) automatic picture enhancement gives: 

-Brilliant and fresh color 

-Intensified contrast and details 

-Vivid skin tone 

-Sharp edge 

-Enhanced depth of field perception 

-Accurate and independent color control 

sRGB compliance allows end-user to experience the same colors as viewed on CRTs and other displays 

Programmable 12-bit RGB gamma CLUT 

3-D video noise reduction 

Frame rate conversion 

16/256 color palette 

256/512 1-bit/pixel font 

128/256 4-bit/pixel font 

Supports texture function 

Supports 4K attribute/code 

 

Horizontal and vertical stretch of OSD menus 

Pattern generator for production test 

Supports OSD MUX and alpha blending capability 

Supports blinking and scrolling for closed caption applications 

LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK 
 

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    Supports 8-bit dual link LVDS up to SXGA(1280x1024) / WXGA+(1440x900)    

Supports 8-bit single TTL panel 

Supports 2 data output formats: Thine & TI data mappings 

Compatible with TIA/EIA 

With 6/8 bits options 

Reduced swing for LVDS for low EMI 

Supports flexible spread spectrum frequency with 360Hz~11.8MHz and up to 25% modulation 

　

Embedded 8032 micro controller 

Configurable PWM’s and GPIO’s 

Low-speed ADC inputs for system control 

SPI bus for external flash 

Supports external MCU option controlled through 4-wire double-data-rate direct MCU bus 

　

SD/MMC/MS/MSPro card reader interface to support JPEG playback 

Two USB controllers (1.1 OTG and 2.0 host) with the flexibility for connecting external storage devices or PictBridge    

16-bit data bus for external frame buffer (DDR DRAM) 

All system clocks synthesized from a single external clock 

 
1.2. U6102 (TPA3124D2PWPR) 

The TPA3124D2 is a 15-W(per channel);efficient,class-D audio power amplifier for driving stereo speakers in a single-ended configuration;or  a 
mono speaker in a bridage-tied-load configuration .The TPA3124D2 eliminates the need for an external heat sink when playing music. 

           The gain  of amplifier is controlled by two gain select pins.The gain selections are 20.26.32and 36dB. 

 The patented start-up and shutdown sequences minimize pop noise in the speakers without additional circuity. 

Features 
        10-W/Ch Into a 8-Ω Load From a 24-V Supply 
        15-W/Ch Into a 4-Ω Load From a 22-V Supply 
        30-W/Ch Into a 8-Ω Load From a 22-V Supply 
        Operates From 10V to 26V 
        Can Run From +24V LCD Backlight Supply  
        Efficient Class-D Operation Eliminates Need For Heat Sinks 
        Four selectable,Fixed-Gain Settings 
        Internal Oscillator(No External Components Required) 
        Single-Ended Analog Imputs 
        Thermal and Short-Circuit Portection With Auto Recovery  
        Space-Saving Surface Mount 24-Pin TSSOP Package 
        Advanced Power-Off Pop Reduction 
Applications 

          Flat Panel Televisions 
          DLP TVs 
          CRT TVs 
          Powered Speakers 

1.3. U1503 (TMDS261) 

The TMDS261 is a two-port digital video interface (DVI) or high-definition multimedia interface (HDMI) switch that allows up to two DVI or HDMI 
ports to be switched to a single display terminal. Four TMDS channels, one hot-plug detector, and a digital display control (DDC) interface are 
supported on each port. Each TMDS channel supports signaling rates up to 3 Gbps to allow 1080p resolution in 16-bit color depth. 
The TMDS261 provides an adaptive equalizer for different ranges of cable lengths. The equalizer automatically compensates for intersymbol 
interference [ISI] loss of an HDMI/DVI cable for up to 20 dB at 3 Gbps 

 Features 
           2:1 Switch Supporting DVI Above 1920 × 1200 · 64-Pin TQFP Package: Pin-Compatible With and HDMI HDTV Resolutions up to 1080p With 

TMDS25116-bit Color Depth · Robust TMDS Receive Stage That Can Work 

Designed for Signaling Rates up to 3 Gbps With Non-Compliant Input Common-Mode 

 HDMI1.3a Spec Compliant HDMI Signal 

Adaptive Equalization to Support up to 20-m HDMI Cable 

TMDS Input Clock-Detect Circuit · High-Definition Digital TV