akira CMO-V270B1 User manual

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)
6.5MHz (D/K,LL’)
5.85MHZ (NICAM B/G, D/K, L)
6.55 MHz (NICAM I )
INTER-CARRIER FREQUENCY
5.74 MHz (German Stereo )
BG/DK/L:34.47MHz
CHROMA IF FREQUENCY L” 38.38MHz
VHF-L 46.25 ~ 163.25MHz
VHF-H 158.25 ~ 466.25MHz
CHANNELS RECEIVED
UHF 471.25 ~ 855.25MHz
TUNNING MODE PLL SYSTEM
1 AV IN, 1 S-VIDEO IN
AV IN/OUT 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
AV IN/OUT SPECIFICATION
RGB IN --------- 0.7 Vp-p
ANTENNA INPUT IMPEDNCE 75 OHM
ENGLISH / SPANISH / ITALIAN
OSD LANGUAGE RUSSIAN / GERMAN/ FRENCH
AUDIO OUTPUT POWER > 5Wx2 (1KHz, 0.5Vms, 10% THD)
GREEN -- POWER ON
LED INDICATORS RED -- STANDBY
HAND SET POWER SUPPLY BATTERY 1.5V (AAA) x 2
Model No.: LCT-27KX1EST.doc
Version: 1.0

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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) 2 / 6 / 8
Model No.: LCT-27KX1EST.doc
Version: 1.0

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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

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CIRCUIT DIAGRAM
1.
Model No.: LCT-27KX1EST.doc
Version: 1.0

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

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

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

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

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

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

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

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