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4.FAULT FINDING TREE

Copyright©2005 Aplus Technic® All Rights Reserved

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PC mode repair ﬂowchart

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Summary of Contents for MLT2022

Page 1: ...on Operating Random Vibration Test Packaged 10 1 8 5 Packing Drop Test 10 2 Drawing 11 3 Dis Assembly Assembly 13 3 1 Stand 13 3 2 Stand bracket 13 3 3 Back cover 13 3 4 Keypad wire 13 3 5 VGA screws...

Page 2: ...DTV Ready supported 480i 480p 1080i 720p Automatic 3 2 pull down 2 2 pull down detection and recovery 4 3 16 9 Anamorphic Panorama aspect ratio MTS supported High brightness 450 nits High contrast rat...

Page 3: ...port RA port MCU Video Image Processor LVDS IC Audio Amplifier Headphone Driver AV SV Keypad IR Speaker Earphone Jack Circuit Diagram PANEL VGA AV Item Specification Unit Active Area 408 H x 306 V 20...

Page 4: ...minance of measured location without gray level 0 pattern cd m 2 YB Luminance of measured location with gray level 0 pattern cd m 2 Note 6 Measurement Setup The LCD module should be stabilized at give...

Page 5: ...ce 1 3 1 Overview RF TV Tuner input Slot x1 1 Composite video L R RCA Audio input x1 2 S Video input Audio shared with Composite input 3 Component video L R RCA Audio input x1 for YCbCr YPbPr 4 15pin...

Page 6: ...cale 6dB gain for YCbCr signal Support YCbCr YPbPr signal 480i 480p 1080i 720p Position Back side VGA Input x 1 75 ohm Stereo L R VGA 15pin D Sub Blue Audio PC Earphone 3 5 Mini Jack x 1 Resolution mo...

Page 7: ...e front keypad of LCD TV 1 4 3 Power state TV power on LED status Green Power consumption Max 60W TV standby Logical switch off Powered off by keypad or remote controller LED status Red Power consumpt...

Page 8: ...n for MPAA G MPAA PG MPAA PG13 MPAA R MPAA NC17 MPAA X Vchip default password 3308 1 5 3 Miscellaneous Max no of channel 125 Channel AFT range 1 0 1 25MHz 1 6 Safety EMI test 1 6 1 Safety UL cUL UL609...

Page 9: ...nly Gross weight 8 Kg include LCD TV accessories Measurement 2 7 CUFT 0 08 CBM 1 7 4 Packing detail LCD TV Unit Accessories Power cord Power adaptor Remote Controller Recyclable Battery for remote con...

Page 10: ...or 96 hours Storage 10o C and 60o C for 96 hours 1 8 2 Humidity test Operating 40o C RH 93 for 96 hours 1 8 3 Thermal shock test Operating 10 cycles of TA 10o C to TB 60o C Dwell time exposure time 30...

Page 11: ...2 Drawing Copyright 2005 Aplus Technic All Rights Reserved 2 Drawing 11...

Page 12: ...2 Drawing 2 Drawing Copyright 2005 Aplus Technic All Rights Reserved 12...

Page 13: ...picture at right side Torque 4 5 0 5KG P 3 10 4 pcs D3 Dis assembly Take the screws EA0305111 off Take the back cover off A13 Assembly Put the bcak cover on Lock the screws EA0305111 on 3 2 Stand bra...

Page 14: ...6 screws EA1500611 off Take the EMI metal off A9 Assembly Put the EMI metal on Lock the 6 screws EA1500611 on EMI metal Note EMI Electromagnetic Interference 3 8 Front cover Dis assembly and Assembly...

Page 15: ...assembly Take the high voltage cables off Take the screws EA0301211 off Take Inverter PCB off A6 Assembly Put Inverter PCB on Lock the screws EA0301211 on Plus the panel high voltage cables in 3 11 P...

Page 16: ...tton gloves during operations 2 Don t wear adornment such as rings watches and so on during operations 3 Wearing the Anti static Wrist Strap Shin Band is a must 3 14 Keypad semi kit xture Dis assembly...

Page 17: ...4 FAULT FINDING TREE Copyright 2005 Aplus Technic All Rights Reserved 4 FAULT FINDING TREE 17 Main page of fault nding tree...

Page 18: ...4 FAULT FINDING TREE 4 FAULT FINDING TREE Copyright 2005 Aplus Technic All Rights Reserved 18 Power supply repair owchart...

Page 19: ...4 FAULT FINDING TREE Copyright 2005 Aplus Technic All Rights Reserved 4 FAULT FINDING TREE 19 OSD display repair owchart...

Page 20: ...4 FAULT FINDING TREE 4 FAULT FINDING TREE Copyright 2005 Aplus Technic All Rights Reserved 20 PC mode repair owchart...

Page 21: ...4 FAULT FINDING TREE Copyright 2005 Aplus Technic All Rights Reserved 4 FAULT FINDING TREE 21 TV mode repair owchart...

Page 22: ...4 FAULT FINDING TREE 4 FAULT FINDING TREE Copyright 2005 Aplus Technic All Rights Reserved 22 AV SV and YCbCr YPbPr mode repair owchart...

Page 23: ...4 FAULT FINDING TREE Copyright 2005 Aplus Technic All Rights Reserved 4 FAULT FINDING TREE 23 Audio repair owchart...

Page 24: ...0608111 EMI Metal SECC NO POWER 1 AP050318 A 16 EK0605211 Switch EMI Metal 1 AP040849 17 EK1401301 Switch Metal SECC 1 AP040828 A 18 BF5009525 FFC 50P 95mm 1 19 BR0239002 SPEAKER R WIRE 390mm 22 1 AP0...

Page 25: ...2 Serial Number Sticker 50 8 19 05mm 2 AP050506 44 MG5307129 Model Number Sticker 1 45 MG5700067 LT2062 UPC 12 Bar Code Sticker 1 AP050417 46 MG5800092 Warrant sticker W O printed 1 AP040107 47 MG5800...

Page 26: ...1 2 0mm 1 2 C2 104P JP11 HEADER 2X1 2 0mm 1 2 C377 104P TC103 N C 100U FB5 FB 120R 0805 C7 272P TC5 100U R6 680R TC9 47U R8 680R R4 10K TP7 1 TC6 47U FB119 0R 0805 R1 2 2R 1206 FB117 0R 0805 FB116 0R...

Page 27: ...4P FB 600R 0805 FB9 C21 NC 0805 C48 NC 0805 C26 N C R30 47K C58 102P C49 NC 0805 TC16 10U D2 N C SOT23 3 2 1 C42 105P 0805 J2 TEST POINT 1 C52 105P 0805 C25 N C NC 0805 FB7 FB 600R 0805 FB8 FB10 FB 60...

Page 28: ...1206 R42 47K C68 47P FB112 NC 0805 FB111 0R 0805 D10 N C SOT23 3 2 1 C75 470P D11 N C SOT23 3 2 1 C71 47P R39 2 4K D6 N C SOT23 3 2 1 C73 2 2U 1206 D9 N C SOT23 3 2 1 C86 222P C87 222P FB14 FB 120R 08...

Page 29: ...R53 47R C104 2 2U 1206 C94 47P C98 47P R52 47R FB33 FB 120R 0805 R63 47K D17 N C SOT23 3 2 1 R55 47R R54 75R C102 47P D16 N C SOT23 3 2 1 R56 47R CON11 2 RJ 1145 3c 2b 1a D12 BAV99 SOT23 3 2 1 R60 75...

Page 30: ...IN Scart RGB IN Scart AV OUT Scart Audio OUT 3 14 R83 N C R66 N C FB52 NC 0805 FB54 NC 0805 D25 NC BAV99 SOT23 3 2 1 R75 N C R80 N C FB49 NC 0805 R65 N C D18 NC BAV99 SOT23 3 2 1 C121 N C C112 NC 1206...

Page 31: ...T FOR TOPRO MPU 3 14 k 3 14 k D37 NC TP10 1 R112 NC R103 4 7K R85 47R R86 47R C 101P U5 24C02 SOIC 8 NC 1 NC 2 NC 3 GND 4 SDA 5 SCL 6 VCLK 7 VCC 8 C132 473P R91 47R D33 1N4148 R88 75R D 35 NC R96 470K...

Page 32: ...2 54mm Debug Port 4 2 54mm 1 2 3 4 R138 10K C148 20P R352 75R R122 NC X2 24 576MHZ R124 NC C140 20P R137 10K R125 FB 600R R126 FB 600R JP2 HEADER10X1 2 0mm 1 2 3 4 5 6 7 8 9 10 TC24 10U R130 FB 120R C...

Page 33: ...206 C179 27P C184 104P 7 5 3 1 8 6 4 2 RP8 RP100X4 U37 NC AD4403 SOIC 8 S 1 S 2 S 3 G 4 D 8 D 7 D 6 D 5 C175 27P FB135 NC 1206 7 5 3 1 8 6 4 2 RP5 RP100X4 FB63 FB 75R 1206 C176 27P C170 27P 7 5 3 1 8...

Page 34: ...68 FB 75R 1206 R162 100R D40 P6KE18 C191 104P O U T ADJ IN U12 AP1084 3 3V 3 3V Regulator TO 263 3L 3 2 1 4 CON8 RA12KKFROFR 1 2 TP3 1 ADJ O U T IN U11 LT1117 ADJ SOT 223 2 5V Regulator 3 2 1 4 C187 1...

Page 35: ...0 N C R214 N C C206 N C TC49 N C R191 N C R197 N C U17 NC ST M29W040B A0 12 A1 11 A2 10 A3 9 A4 8 A5 7 A6 6 A7 5 A8 27 A9 26 A10 23 A11 25 A12 4 A13 28 A14 29 A15 3 A16 2 A17 30 A18 1 DQ0 13 DQ1 14 DQ...

Page 36: ...0R 1 C259 104P R230 0R C241 104P C234 104P TC64 100U C250 104P R229 0R C247 104P TC61 47U C267 104P TC65 10U C258 104P C262 104P C231 104P TC58 10U TC60 10U TC55 47U C235 104P C249 104P C260 104P C263...

Page 37: ...et o f LT2062_NTSC PCB2063TM 1 1 SDRAM APLUS TECHNICS CO LTD 6F5 NO 504 Yuan Shan Road Chung_Ho Taipei Taiwan R O C Custom 12 16 Wednesday May 25 2005 1M X 16bit 1M X 16bit C282 104P 7 5 3 1 8 6 4 2 R...

Page 38: ...253 0R 1206 R267 N C C379 N C R258 75R FB93 FB 75R 0805 FB94 FB 75R 0805 R265 FB 1K C296 104P R249 2 2K C284 104P FB96 FB 120R 0805 R257 75R TC70 100U C290 47P TP14 1 C297 104P C291 47P R250 2 2K TC72...

Page 39: ...CH2_A33VDD 5 CH2_A33GND 6 VI_2A 7 VI_2B 8 VI_2C 9 CH2_A18GND 10 A18VDD_REF 12 A18GND_REF 13 CH3_A18VDD 14 CH3_A18GND 15 VI_3A 16 VI_3B 17 VI_3C 18 CH3_A33GND 19 CH3_A33VDD 20 CH4_A33VDD 21 CH4_A33GND...

Page 40: ...rface APLUS TECHNICS CO LTD 6F5 NO 504 Yuan Shan Road Chung_Ho Taipei Taiwan R O C A 15 16 Wednesday May 25 2005 C362 560P R313 NC C361 NC TC92 NC R318 75R R311 NC R319 75R C359 470P R310 NC R315 NC C...

Page 41: ...8 6 4 2 RP21 NC 7 5 3 1 8 6 4 2 RP23 NC 7 5 3 1 8 6 4 2 RP22 NC 7 5 3 1 8 6 4 2 RP24 NC TC97 NC 10U TC93 NC 10U R339 NC R325 NC R338 NC R342 NC C370 NC R344 NC R329 NC R340 NC R330 NC R331 NC R332 NC...

Page 42: ...R MST6150L EEPROM 24C16 MSP3440 TVP5146 MUTE TV Audio OUT Scart Power SW 12V to 5V 78L05 12V Panel Power SW Updata TV Video OUT Scart AV IN Scart RGB Video SW PI5V330 S Video IN AV Video IN Video SW P...

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