SERVICE MANUAL Model: LCT2715 Safety Instructions Production specification. Block Diagram Circuit Diagram Disassembly Pin Descriptions LCD Panel specification Exploded View Diagram Spare parts list V-chip password and software upgrade This manual is the latest at the time of printing, and does not include the modification which may be made after the printing, by the constant improvement of product.
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I. Safety Instructions The l ig h tn i ng fla sh w i th arro wh e ad symb ol , within an equilatera l triangle, is intended to alert the user to the presence of uninsulated “ dangerous CAUTION voltage”...
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PRODUCT SAFETY NOTICE 4. Completely discharge the high pote ntial voltage of the picture tube before handli ng. The pi cture tube is a Many e lectrical an d mechanica l parts in this TV vacuum and if bro ken, the gl ass will explode. receiver have special safety-related characteristics.
Revision Date : 2005.08.1 Page : P.1 of 8 Model No. : LC27HAB Customer Model No. : LCT2715 Design Code : LC27HABCUSXM1-A01 BOM No. : LC27HABCUSXM1-A01 Artwork Ass'y No. : 580-L26ABHM-TU02L Description : AKAL LCD TV 26” NTSC AC100V-240 V AC USA...
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KAWA ELECTRONIC RESEARCH & DEVELOPMENT CENTRE Reference No : LC27HAB001 Revision Date : 2005.8.1 Page : P. 2 of 8 General Description Main features Production Description AKAL LCD TV 27” NTSC AC100V-240VAC USA Panel Supplier and Model CHIMEI V270B1-L01 Chips Solution MK8205 Market 1.1 VIDEO SECTION...
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KAWA ELECTRONIC RESEARCH & DEVELOPMENT CENTRE Reference No : LC27HAB001 Revision Date : 2005.8.1 Page : P. 3 of 8 Stereo Decode MTS with SAP Power Rating AC 100-240V, 50/60Hz Power Consumption 200W 1.6 Support the Signal Mode This machine can support the different from VGA signal mode in 19 kinds Resolution Horizontal Vertical...
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KAWA ELECTRONIC RESEARCH & DEVELOPMENT CENTRE Reference No : LC27HAB001 Revision Date : 2005.8.1 Page : P. 4 of 8 2. LCD local control button Main power : push switch Channel +/- volume up/down menu input. standby : soft touch 3.
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KAWA ELECTRONIC RESEARCH & DEVELOPMENT CENTRE Reference No : LC27HAB001 Revision Date : 2005.8.1 Page : P. 5 of 8 Technical Data 1. Chassis MICO 2. Power supply AC 100-240 V, 50/60Hz Remote controller Battery 3V (UM-4/R03/AAA×2) 3. TV system RF input NTSC M Video input...
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KAWA ELECTRONIC RESEARCH & DEVELOPMENT CENTRE Reference No : LC27HAB001 Revision Date : 2005.8.1 Page : P. 6 of 8 : Electrical & Optical Specification Attachment 1 Items Instruction Typical Limit Unit ≤51 Video sensitivity For 30dB S/N dBuV ≤35 FM sound sensitivity For 30dB S/N dBuV...
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KAWA ELECTRONIC RESEARCH & DEVELOPMENT CENTRE Reference No : LC27HAB001 Revision Date : 2005.8.1 Page : P. 7 of 8 ≥5.0×2 Max Audio Output Power 7×2 ≥4.0×2 Audio output power 1KHz 10% THD 6×2 10% THD ≤3 Po=0.5W ≥30 Signal to buzz ratio coeighting ≤10 Minimum volume hum...
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KAWA ELECTRONIC RESEARCH & DEVELOPMENT CENTRE Reference No : LC27HAB001 Revision Date : 2005.8.1 Page : P. 8of 8 Test Condition All tests shall be performed under the following conditions unless otherwise specified Picture Modulation 87.5% Sound Modulation 27KHz Dev. For DK/I/BG 15KHz Dev.
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Basic Operations & Circuit Description Main Electric Components (1). MODULE: There are 1 pc. panel and 2 pcs. PCB including 1 pc. INVERTER board(L), 1 pc. T-CONTROL board, (2).SIGNAL PROCESS There are 4 pcs. PCBs including 1 pc. Audio&Tuner board, 1 pc.
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PCB function 1. Power: (1). Input voltage: AC 100V~240V, 47Hz~63Hz. Input range: AC 90V(Min)~264V(Max) auto regulation. (2). To provide power for PCBs. a). +24V for Inverter. b). +5Vsb for standby, c). +5V for signal power, d). +24V for Audio Amp power and converter to e).
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PCB failure analysis 1. CONTROL: a. Abnormal noise on screen. b. No picture. 2. MAIN (VIDEO): a. Lacking color, Bad color scale. b. No voice. c. No picture but with signals output, OSD and back light. d. Abnormal noise on screen. 3.
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LCD basic display theory. When an electrical field is applied to the LC planes, the LC molecules re-align themselves so that they are parallel to the electrical field. This electrical process is known as twisted nematic field effect or TNFE. In this alignment, polarized light is not twisted as it passes through the LC material (see Diagram 3A and 3B).
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Disassembly In case of trouble, etc., Necessitating disassemble, please disassemble in the order shown in the illustrations. Reassemble in the reverse order. 1. Removal of the Back Cover 2. Removal of the MAIN PCB a. Remove the screws. Slide out the LCD chassis slightly; pull up the connector of AC cord from PCB; pull up the PCB from LCD.
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Pin Descriptions 2.3 Pin Descriptions Table 2-1 provides detail video/audio port pin descriptions. Table 2-1 video/audio port pin descriptions. Symbol Type Description Audio out master clock AOMCLK Audio out left-right clock AOLRCK Audio out bit clock AOBCK Audio out data line 0 AOSDATA0 Audio out data line 1 AOSDATA1...
AT24C01A/02/04/08/16 Features • Low Voltage and Standard Voltage Operation 5.0 (V = 4.5V to 5.5V) 2.7 (V = 2.7V to 5.5V) 2.5 (V = 2.5V to 5.5V) 1.8 (V = 1.8V to 5.5V) • Internally Organized 128 x 8 (1K), 256 x 8 (2K), 512 x 8 (4K), 1024 x 8 (8K) or 2048 x 8 (16K) •...
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Absolute Maximum Ratings* *NOTICE: Stresses beyond those listed under “Absolute Maxi- Operating Temperature....-55°C to +125°C mum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the Storage Temperature...... -65°C to +150°C device at these or any other conditions beyond those indi- cated in the operational sections of this specification is not Voltage on Any Pin...
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MX29LV160BT/BB 16M-BIT [2Mx8/1Mx16] CMOS SINGLE VOLTAGE 3V ONLY FLASH MEMORY FEATURES erase operation completion. • Extended single - supply voltage range 2.7V to 3.6V • Ready/Busy pin (RY/BY) • 2,097,152 x 8/1,048,576 x 16 switchable - Provides a hardware method of detecting program or •...
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November 2003 LP2996 DDR Termination Regulator General Description Features n Source and sink current The LP2996 linear regulator is designed to meet the JEDEC SSTL-2 specifications for termination of DDR-SDRAM. The n Low output voltage offset device contains a high-speed operational amplifier to provide n No external resistors required excellent response to load transients.
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TS5V330 QUAD SPDT WIDE BANDWIDTH VIDEO SWITCH WITH LOW ON STATE RESISTANCE SCDS164A – MAY 2004 − REVISED MAY 2004 Low Differential Gain and Phase D, DBQ, OR PW PACKAGE (TOP VIEW) = 0.64%, D = 0.1 Degrees Typ) Wide Bandwidth (BW = 300 MHz Min) Low Crosstalk (X = −63 dB Typ) TALK...
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19-0175; Rev 3; 5/96 ±15kV ESD-Protected, +5V RS-232 Transceivers _______________General Description ____________________________Features The MAX202E–MAX213E, MAX232E/MAX241E line ESD Protection for RS-232 I/O Pins: drivers/receivers are designed for RS-232 and V.28 ±15kV—Human Body Model communications in harsh environments. Each ±8kV—IEC1000-4-2, Contact Discharge transmitter output and receiver input is protected ±15kV—IEC1000-4-2, Air-Gap Discharge against ±15kV electrostatic discharge (ESD) shocks,...
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±15kV ESD-Protected, +5V RS-232 Transceivers Table 3. DB9 Cable Connections Commonly Used for EIA/TIAE-232E and V.24 Asynchronous Interfaces CONNECTION Received Line Signal Detector (sometimes Handshake from DCE called Carrier Detect, DCD) Receive Data (RD) Data from DCE Transmit Data (TD) Data from DTE Data Terminal Ready Handshake from DTE...
1. GENERAL DESCRIPTION 1.1 OVERVIEW V270B1- L01 is a TFT Liquid Crystal Display module with 14-CCFL Backlight unit and 1ch-LVDS interface. The display diagonal is 27”. This module supports 1366 x 768 WXGA format and can display true 16.7M colors(8-bits colors). The inverter module for backlight is built-in. 1.2 FEATURES - Excellent brightness (550 nits) - Ultra high contrast ratio (1000:1)
2. ABSOLUTE MAXIMUM RATINGS 2.1 ABSOLUTE RATINGS OF ENVIRONMENT Value Item Symbol Unit Note Min. Max. Storage Temperature ºC Operating Ambient Temperature ºC (1), (2) Shock (Non-Operating) (3), (5) Vibration (Non-Operating) (4), (5) Note (1) Temperature and relative humidity range is shown in the figure below. (a) 90 %RH Max.
2.2 ELECTRICAL ABSOLUTE RATINGS 2.2.1 TFT LCD MODULE Value Item Symbol Unit Note Min. Max. Power Supply Voltage -0.3 Input Signal Voltage -0.3 2.2.2 BACKLIGHT UNIT Test Item Symbol Min. Type Max. Unit Note Condition Ta = 25 ¢J ¡Ð ¡Ð...
3. ELECTRICAL CHARACTERISTICS Ta = 25 ± 2 ºC 3.1 TFT LCD MODULE Value Parameter Symbol Unit Note Min. Typ. Max. Power Supply Voltage Power Supply Ripple Voltage Rush Current RUSH White Power Supply Current Black Vertical Stripe 1.65 Differential Input High +100 LVTH Threshold Voltage...
Note (3) The specified power supply current is under the conditions at Vcc = 5 V, Ta = 25 ± 2 ºC, f = 60 Hz, whereas a power dissipation check pattern below is displayed. b. Black Pattern a. White Pattern Active Area Active Area c.
3.2.2 INVERTER CHARACTERISTICS ( Ta = 25 ± 2 ºC) Value Parameter Symbol Unit Note Min. Typ. Max. Power Consumption (5), I = 4.7mA 22.8 25.2 Power Supply Voltage Power Supply Current Non Dimming Input Ripple Noise =22.8V Backlight Turn on 1790 Ta = 0 ºC Voltage...
Note (4) The life time of a lamp is defined as when the brightness is larger than 50% of its original value and the effective discharge length is longer than 80% of its original length (Effective discharge length is defined as an area that has equal to or more than 70% brightness compared to the brightness at the center point.) as the time in which it continues to operate under the condition Ta = 25 ¡Ó...
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Note (2) The power sequence and control signal timing are shown as the following figure. Toff 2.0V BLON 0.8V Backlight on duration 2.0V Int. Dimming Function 0.8V Ext. Dimming Function PWMF PWMR 2.0V EPWM 0.8V 3.0V IPWM External External PWM Duty Period Minimun 100%...
5.2 BACKLIGHT UNIT The pin configuration for the housing and leader wire is shown in the table below. CN3-CN9 (Housing): BHR-03VS-1 (JST) Pin No. Symbol Description Wire Color High Voltage Pink High Voltage White Note (1) The backlight interface housing for high voltage side is a model BHR-03VS-1, manufactured by JST. The mating header on inverter part number is SM02(8.0)B-BHS-1-TB(LF) or equivalent.
5.3 INVERTER UNIT CN1(Header):S10B-PH-SM3-TB(D)(LF)(JST) or equivalent. Name Description +24V Power input Ground CN2(Header): S12B-PH-SM3-TB(D)(LF)(JST) or equivalent. Name Description +24V Power input Ground Internal/external PWM selection High : external dimming Low : internal dimming External PWM control signal E_PWM E_PWM should be connected to low when internal PWM was selected (SEL = low).
5.6 COLOR DATA INPUT ASSIGNMENT The brightness of each primary color (red, green and blue) is based on the 8-bit gray scale data input for the color. The higher the binary input, the brighter the color. The table below provides the assignment of color versus data input.
6. INTERFACE TIMING 6.1 INPUT SIGNAL TIMING SPECIFICATIONS The input signal timing specifications are shown as the following table and timing diagram. Signal Item Symbol Min. Typ. Max. Unit Note Frequency 1/Tc Input cycle to LVDS Receiver Clock Trcl cycle jitter Setup Time Tlvsu LVDS Receiver Data...
6.2 POWER ON/OFF SEQUENCE To prevent a latch-up or DC operation of LCD module, the power on/off sequence should be as the diagram below. 0.9 V 0.9 V Power Supply 0.1Vcc 0.1V ¡Ø10ms 0¡ Ø T ¡Ø50ms 0¡ Ø T ¡Ø50ms 0¡...
7. OPTICAL CHARACTERISTICS 7.1 TEST CONDITIONS Item Symbol Value Unit Ambient Temperature 25±2 Ambient Humidity 50±10 Supply Voltage Input Signal According to typical value in "3. ELECTRICAL CHARACTERISTICS" Lamp Current 4.7 ± 0.5 Oscillating Frequency (Inverter) 56 ± 3 7.2 OPTICAL SPECIFICATIONS The relative measurement methods of optical characteristics are shown in 7.2.
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Note (1) Definition of Viewing Angle (θx, θy): Viewing angles are measured by EZ-Contrast 160R (Eldim) Normal θx = θy = 0º θy- θ 12 o’clock direction θ = 90º θx− θ = 90º θx+ 6 o’clock θ = 90º = 90º...
Note (4) Definition of Luminance of White (L Measure the luminance of gray level 255 at center point and 5 points = L (5) = [L (1)+ L (2)+ L (3)+ L (4)+ L (5)] / 5 L (x) is corresponding to the luminance of the point X at the figure in Note (7). Note (5) Definition of Cross Talk (CT): CT = | Y –...
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Note (7) Definition of White Variation (δW): Measure the luminance of gray level 255 at 5 points δW = Maximum [L (1), L (2), L (3), L (4), L (5)] / Minimum [L (1), L (2), L (3), L (4), L (5)] Horizontal Line 3D/4 : Test Point...
8. DEFINITION OF LABELS 8.1 CMO MODULE LABEL The barcode nameplate is pasted on each module as illustration, and its definitions are as following explanation. E207943 CHI MEI V270B1 -L01 Rev. XX MADE IN TAIWAN OPTOELECTRONICS X X X X X X X Y M D L N N N N (a) Model Name: V270B1-L01 (b) Revision: Rev.
10. PRECAUTIONS 10.1 ASSEMBLY AND HANDLING PRECAUTIONS (1) Do not apply rough force such as bending or twisting to the module during assembly. (2) It is recommended to assemble or to install a module into the user’s system in clean working areas. The dust and oil may cause electrical short or worsen the polarizer.
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PCB ASSY POWER200 BOARD FOR 27" LCD E7802-004003 PCB ASSY TUNER AMP BOARD FOR 27" LCD 二, MECH PART 200-26LA21-04AV CABINET FRONT AKAI BLK LCT2715 (MICO 202-26LA11-01AV BACK CABINET 26LA A (470+70%) 206-26LA01-01PV THE BACK COVER SPEAKER 26LA P (470...
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SERIAL NO. LABEL 579-LC2701-03 UPC LABEL (50X23)MM OF UNIT LCT2715( 579-LC2702-03 UPC LABEL OF G/B LCT2715 MICO) 580-L26ABHM-TU01 IB E FOR AKAI LC26HAB CMO MICO USA 590-LC2701-03 INSERTION CARD AKAI LC26HAB 590-LC2701-04 WARRANTY CARD AKAI LCT2715 216X279MM 601-305008-00 MACH.SCREW CTS 3X8...
If you forget your V-Chip Password - Omnipotence V-Chip Password: 8205. - Press MENU button. - Press LEFT RIGHT buttons to highlight "MISC" Menu. - Press Up, Down buttons to highlight "Parentald". - Press ENTER button to pop up "Input your Password Please". - Use the Number buttons (0~9) to enter an omnipotence Password.
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Software upgrade Process - Power Switch OFF. - Connect the serial port of the control device to the RS-232 jack on the LCD-TV back panel. RS-232C connection cables are not supplied with the LCD-TV. - Power Switch ON. The power indicator on the front of the panel should now display red, means that the LCD-TV is in standby mode.
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