Akira LCT-27KX1EST Schematic

LCD TV

Service Manual

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MODEL:

LCT-27KX1EST

Model No.: LCT-27KX1EST.doc Version: 1.0

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CONTENTS

SAFETY PRECAUTION .............................................................................................................4

SPECIFICATION ........................................................................................................................6

MAIN FEATURE .........................................................................................................................8

EXPLODED VIEW AND PART NAME........................................................................................9

CIRCUIT DIAGRAM .................................................................................................................11

REPLACEMENT PARTS ........................................................................................................35

INSTALLTION GUIDE .............................................................................................................44

TROUBLESHOOTING .............................................................................................................48

Model No.: LCT-27KX1EST.doc Version: 1.0

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IMPORTANT SAFETY PRECAUTION

Model No.: LCT-27KX1EST.doc Version: 1.0

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Model No.: LCT-27KX1EST.doc Version: 1.0

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SPECIFICATION

PART I

POWER CONSUMPTION 200 Watt (Max)_ ≤ 3 Watt (STBY) TV RECEIVE SYSTEM PAL D/K, I ,B/G VIDEO SYSTEM MULTI PAL / SECAM / NTSC VISION INTERMEDIATE FREQUENCY 38.9MHz, 33.95MHz(L’)

5.5 MHz (B/G)

6.0 MHz (I)

INTER-CARRIER FREQUENCY

CHROMA IF FREQUENCY

CHANNELS RECEIVED

TUNNING MODE PLL SYSTEM

AV IN/OUT

AV IN/OUT SPECIFICATION

ANTENNA INPUT IMPEDNCE 75 OHM

OSD LANGUAGE

AUDIO OUTPUT POWER > 5Wx2 (1KHz, 0.5Vms, 10% THD)

LED INDICATORS

HAND SET POWER SUPPLY BATTERY 1.5V (AAA) x 2

Model No.: LCT-27KX1EST.doc Version: 1.0

6.5MHz (D/K,LL’)

5.85MHZ (NICAM B/G, D/K, L)

6.55 MHz (NICAM I )

5.74 MHz (German Stereo ) BG/DK/L:34.47MHz L” 38.38MHz VHF-L 46.25 ~ 163.25MHz VHF-H 158.25 ~ 466.25MHz UHF 471.25 ~ 855.25MHz

1 AV IN, 1 S-VIDEO IN 21 PIN SCART IN / YCbCr Y/C IN-Y: 1.0± 0.2Vp-p 75 Ω C:0.7 VP-P 75Ω VIDEO IN –-- 1.0±0.2Vp-p 75Ω

AUDIO IN --– Approx, 500mV VIDEO OUT – 1.0±0.2Vp-p 75Ω

RGB IN --------- 0.7 Vp-p

ENGLISH / SPANISH / ITALIAN RUSSIAN / GERMAN/ FRENCH

GREEN -- POWER ON

RED -- STANDBY

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PART II

MODEL CMO-V270B1 RESOLUTION 1366 x 768 DISPLYABLE COLOR 16.7MHz SURFACE Hard Coating + Anti-Radiation VIEWING ANGLE (H/V) 176º (H) / 176º (v) DISPLAY RESPONSE TIME 8ms CONTRAS RATION 1:800 BRIGNTNESS 500 nit ASPECT 16:9 LAMP LIFE 50,000 Hrs

BAD PIXWL QUALITY ( BRIGHT / DARK / ALL)

Model No.: LCT-27KX1EST.doc Version: 1.0

2 / 6 / 8

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MAIN FEATURE

 POWER SUPPLY: AC 100~240V 50 / 60Hz

 MULTI SYSTEM: PAL BG / DK / I and SECAM BG / DK, LL’

 MULTISTANDARD SOUND PROCESSORS: NICAM, FM-STEREO

 MULTI VIDEO SYSTEM : PAL/NTSC/SECAM

 VERSATILE INPUT SOURCES:TV,VIDEO,S-VIDEO,SCART

1,SCART 2, YcbCr / YPbPr, PC (ANALOG)

 FULL FUNCTION REMOTE CONTROLLER

 EXCELLENT SOUND EFFECT WITH VOLUME, TREBLE, BASS,

BALANCE, AVC ADJUSTABLE SMART SOUND & PICTURE

MODE: STANDARD, PERSONAL, BRIGHT, MILD

 ADAPTIVE 2/4 LINE COMB FILTER FOR PAL/NTSC

 AUTOMATICALLY TURN OFF THE SET WHEN SINGNAL

ABSENT LONGER IN VGA

 10 PAGES TELETEXT

 150 CHANNELS

 BLUE SCREEN DISPLAY

 SLEEP

 SCREEN SIZE CHANGE

 STANDBY

 CHANNEL SWAP

Model No.: LCT-27KX1EST.doc Version: 1.0

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EXPLODED VIEW and PART NAME

Model No.: LCT-27KX1EST.doc Version: 1.0

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No. PART CODE DESCRIPTION QTY

1 101E2701020A1P FRONT CABINET 1 2 101E270102005 DECORATING NET 2 3 110E270103B01P DECORATING SHEET 1 4 6020BMZ030050 MACHINE SCREW BM 3x5 12 5 305T2701040A1P TOP BRACKET FOR LCD 1 6 305T270104003 LEFT BRACKET FOR LCD 1 7 305E2701030B2P SUPPORT SHEET FOR POWER PCB 1 8 6020PWA030060 MACHINE SCREW WITH WASJER 4 9 305E2701030B3P SUPPORT SHEET FOR MAIN PCB 1 10 7536T2703003A ASSY FOR MAIN PCB 1 11 305E2701030B6P TERMINAL BRACKET FOR MAIN PCB (VDE) 1 12 305TETV270010 SUPPORT RIDGE 1 13 304T270103001 STEEL COVER FOR MAIN PCB 1 14 6020BMW030060 MACHINE SCREW 3 x 6 51 15 101E2701020B2P REAR CABINET 1 16 6020BTB040100 MACHINE SCREW BT4x10 29 17 305T30010013AP BRACKET RING 2 18 509L27KX00010P DECORATING SHEET WITH PVC 1 19 6020BMZ050120 MACHINE SCREW BM 5 x 12 4 20 509E270300010P DECORATING PVC FOR VOLUME PCB 1 21 305T270103008 JACKET BRACKET FOR INPUT POWER 1 22 6020KMB040080 MACHINE SCREW KM4 X 8 16 23 304T260100A30P COVER FOR POWER PCB 1 24 7506T26270A5F ASSY FOR POWER PCB 1 25 NIL 26 NIL 27 305T2701040B5P TERMINAL BRACKET FOR VOLUME PCB 1 28 305T2701040B4P RIGHT BRACKET FOR LCD 1 29 305T270104002 DOWN BRACKET FOR LCD 1 30 419V270B1L050P LCD PANEL 1 31 704T2703002A ASSY FOR TUNER PCB 1 32 110E320100002 TRANSPARENCE PART 4 33 6020BTW030080 SELF TAMPING SCREW BT3*8 5 34 7516T2703003A PCB DOWN FUNCTION KEY 1 35 107E2701020B2P FUNCTION KEY 1 36 4400000600830 SPEAKER 2 37 305TETV27002AP REAR SUPPORT 1 38 6020BMZ050200 MCAHINE SCREW BM5x20 2 39 6020BMB040120 MACHINE SCREW BM4x12 6 40 105E320100A30P DECORATING BRACKET 1 41 305T3201040A4P STEEL COLUMN 2 42 102E320102B02P BASE COVER 1 43 302E320102B01 SUPPORT STEEL FOR BASE 1 44 503T300100020 UNDERLAYER 6 45 6020KTB030100 SELF-SCREW KT3x10 (BLACK) 4 46 6020KMB040080 MACHINE SCREW KM4x8 (BLACK) 4 47 6020KTB040100 SELF SCREW KT4x10 (BLACK) 10

Model No.: LCT-27KX1EST.doc Version: 1.0