akira LCT-15CH12ST Service Manual

Text of akira LCT-15CH12ST User Guide:

• akira LCT-15CH12ST, -26 - Model No.: LCT15CH12ST.doc Version: 1.0 TM201F7E： Material Name Type（Module NO.） Material Code Remark Main board groupware JUJ6.690.033 8669000330J Main board groupware JUJ6.690.033-5 8669000335J Remote panel groupware JUJ6.694.016 8669400160J Key-press panel groupware JUJ6.694.015 8669400150J Earphone panel groupware JUJ6.695.002 8669500020J Samsung screen use TFT A201SN01 68219020110 LG screen use TFT LC201V02 68212010235 INVERTER panel groupware INV18-605D 593241

• akira LCT-15CH12ST, -18 - Model No.: LCT15CH12ST.doc Version: 1.0 3 TDA9178 : TDA9178 is an analog signal processor with standard YUV input and output interface .It provide three main process functions: luminance vector, color vector and spectrum process. It can finish comprehensive picture improving function independently. The characteristics of the TDA9178 are below: z Luminance Transient Improvement (LTI), Colour Transient Improvement (CTI) z Variable gamma control z Self-suitable black level extend control z Skin color correction, green in

• akira LCT-15CH12ST, -38 - WALL-MOUNTING BRACKET INSTALLATION GUIDE READ CAREFULLY BEFORE INSTALLATION! THE INSTALLATION GUIDE SHOULD BE RETAINED FOR FUTURE REFERENCE. Caution: 1. DO NOT attempt to install the TV by yourself to avoid mistakes or hazard. Refer all installation to qualified servicing personnel. 2. DO NOT install the TV on a wall aslope or a wall that makes the TV screen sloping over 25º off plumb line. Otherwise, it may cause tumble or injury. 3. One must follow the instructions in this guide to correctly install the TV. 4. It requires more than one person to install

• akira LCT-15CH12ST, -24 - Model No.: LCT15CH12ST.doc Version: 1.0 SYMPTOMS AND CORRECTION Symptom Reason and resolve The display board of PC no image in DVI. If some display board of DVI can not receive the data when turning on the TV, there is no output; if pull out the DVI line abruptly, there is also no DVI output; Before starting PC, connect the DVI line with LCD TV steadily. So DVI can receive the correct date from DDC (Display Data Channel) when turning on the TV, DDC is in chassis 24LC21. No picture but sound, on LOGO whe

• -27 - Model No.: LCT15CH12ST.doc Version: 1.0 FACTORY MODE The Parameter adjustment of factory mode introduction: The method of Entering into factory mode: turn down the volume to 0, press down the key of “mute” in remote control, then press the key of “menu” in remote control. press CH+ and CH- choose t

• akira LCT-15CH12ST, -16 - Model No.: LCT15CH12ST.doc Version: 1.0 78 R/PrIN3 R/Pr signal input 79 G/YIN3 G/Y signal input 80 B/PbIN3 B / Pb signal input 81 GND3 Grounding 82 VP3 +5V 83 BCLIN Beam current limiter input 84 BLKIN Black current input 85 RO R basic color signal input 86 GO G basic color signal output 87 BO B basic color signal output 88 VDD3 +3.3V 89 VREFAD_NEG 0V 90 VREFAD_POS +3.3V 91 VREFAD Audio ADC re voltage 92 GNDA Grounding 93 VDDA +1.8V 94 VDD3A +3.3V 95 VSSADC G

• akira LCT-15CH12ST, -28 - Yellow / Green Brown Colo r Model No.: LCT15CH12ST.doc Version: 1.0 EXPLODED VIEW Wiring connecting illustration Assemble with heat shrink tube after hook soldering Blue Color

• akira LCT-15CH12ST, -3 - Model No.: LCT15CH12ST.doc Version: 1.0 CONTENTS SAFETY PRECAUTION.........................................................................................................................4 MAIN FEATURE.....................................................................................................................................6 ELECTRIC CIRCUIT..............................................................................................................................9 MAIN ICs FUNCTION.............................................................................................................

• akira LCT-15CH12ST, -20 - 4 TDA1517AWT : The TDA1517ATW is a double channel class-AB power amplifier contained in a plastic heat sink thin shrink small outline package (HTSSOP20). The device is primarily developed for multimedia applications. a) Outside circuit is simple b) Mute、standby is controllable c) Temperature protect circuit d) low noise switch e) Constant gain TDA1517 PIN FUNCTION: Pin Definition Pin Function 3 Non-inverting input Audio input 5 Supply voltage ripple rejection Bias circuit filter 8、9 Output Audio output 12、13 N.C. Not connected 15、16 Supply voltage ＋1

• akira LCT-15CH12ST, -23 - Model No.: LCT15CH12ST.doc Version: 1.0 KEY PART AND FUNCTION No. Name Element Function Description A A1 RF tuner TAF5-E2I21RW2 RF input, IF output B U2 UOC(TDA15021H) Video decode and MCU control C U3 MST518 AD converter and format transition D U20 PI5V330A Video switch on/off E U6 PI5V330A Video switch on/off F U11 IRF7316 MOS switch G U9 LM2596-5.0 Linear voltage IC H U23 LM2596-5.0 Linear voltage IC I U19 N

• -11 - Model No.: LCT15CH12ST.doc Version: 1.0 1. MST518 High Integration Chip: MST518 is a high performance、high integration image processor which is designed for LCD, it can support SXGA format (1280*1024).it integrates a group of AD converter 、high quality format transform system、OSD generator、 output clock generator、multip

• akira LCT-15CH12ST, -9 - Model No.: LCT15CH12ST.doc Version: 1.0 ELECTRIC CIRCUIT The LS07 chassis LCD TV is composed of steady voltage circuit、inverter Circuit 、RF circuit、video Strengthen circuit、video Processing circuit、Power Enlarge circuit、VGA circuit、system control circuit and key control circuit. The block diagram of circuit Constitute as below:

• akira LCT-15CH12ST, -6 - Model No.: LCT15CH12ST.doc Version: 1.0 MAIN FEATURE  RF input ,CATV function  Capable to receive the full append cable programs in 470MHZ, can store 100 programs (Program number display 0～99);  AV Audio and AV Video input  In SCART mode, the system can automatically activate SCART checking function to identify signal input modes(CVBS or RGB) and input signal character(16:9 or 4:3); Capable to receive PAL, NTSC, SECAM color systems; Very convenient to watch VCR

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