Sharp LL-T15S1 - 15" LCD Monitor Service Manual Download Page 24 | Manualshive

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Summary of Contents for LL-T15S1 - 15" LCD Monitor

Page 1: ...DIAGRAM 13 CHAPTER 5 TROUBLESHOOTING 15 CHAPTER 6 CIRCUIT DIAGRAM 18 CONTENTS Parts marked with are important for maintaining the safety of the set Be sure to replace these parts with specified ones for maintaining the safety and performance of the set SHARP CORPORATION This document has been published to be used for after sales service only The contents are subject to change without notice SERVIC...

Page 2: ...special AC adapter Dimensions W x D x H 368 mm x 170 mm x 355mm Weight Approx 4 1 kg excluding AC adapter DIMENSIONS Units mm Signal timings Display mode Hsync kHz Vsync Hz MHz VESA 640 x 480 31 5kHz 60Hz 25 175MHz 37 9kHz 72Hz 31 5MHz 37 5kHz 75Hz 31 5MHz 800 x 600 35 1kHz 56Hz 36 0Mhz 37 9kHz 60Hz 40 0MHz 48 1kHz 72Hz 50 0MHz 46 9kHz 75Hz 49 5MHz 1024 x 768 48 4kHz 60Hz 65 0MHz 56 5kHz 70Hz 75 0...

Page 3: ... or decrease the value of a selected option When the OSD Menu is not displayed These buttons are used to adjust backlight brightness 4 BRIGHT button The brightness sensor measures the brightness of the surround ing environment and automatically adjusts to the right bright ness 5 Power LED This LED is lit green when in use and orange when in power saving mode 6 Power button Pressing this button tur...

Page 4: ...itor Lightly holding both sides of the monitor adjust it to a suitable viewing angle Folding up the monitor when packing it away Except when folding away the monitor to transport it do not fold down the monitor Unnecessarily folding and unfolding the monitor could lead to malfunction 1 Remove the AC adapter 2 If carrying out adjustments to the monitor place it upright 3 While pressing the rear loc...

Page 5: ...an be heard from the monitor speakers 1 3 Connecting the monitor to a power source Before connecting first turn off the monitor s main power switch Note Do not overly bend the cable or add extension cords as this could lead to malfunction 1 Connect the AC adapter to the monitor s power terminal 2 Attach the power cord to the AC adapter and place the power plug into the AC terminal Firmly insert th...

Page 6: ...he driver you want then click Next 4 When Models is displayed click on Have Disk confirm that Copy manufacturer s files from is A and click OK 5 Confirm that the monitor details are selected then click Next Next and Finish If the Add New Hardware Wizard appears repeat the installation commands beginning from 2 above 6 Remove the Monitor Settings Adjustment Disk from the A drive If the Add New Hard...

Page 7: ...ic screen adjustment The clock phase H POS horizontal positioning and V POS vertical positioning functions can be adjusted automatically Adjustment of backlight Brightness of backlight can be adjusted Manual adjustment Fine adjustments can be made using the On Screen Display OSD Menu Note All adjustments will be saved even after turning the power off All Reset MENU All adjustment values can be ret...

Page 8: ...olors you may see the different color levels in each color pattern or the gray scale may look colored This is due to the specifi cation of the input signal and is not a malfunction 3 2 Adjusting the backlight The backlight brightness can be set to change automatically for use in different surroundings Automatic brightness adjustment If the surroundings become brighter the backlight will become bri...

Page 9: ...n image within the boundaries of the screen adjust the left right H POS values and the up down V POS values buttons MENU 2 GAIN CONTROL BLACK LEVEL and CONTRAST are optimized before shipment but can be adjusted to suit MANUAL Individual menu options are manually adjusted AUTO Every menu option is automatically adjusted using the Auto Gain Control function Notes Press the button to select AUTO To c...

Page 10: ...an be moved to the left and right buttons OSD V POSITION OSD vertical position The position of the OSD display can be moved up and down buttons 400 LINES degree of resolution You can specify the horizontal resolution of a 400 line screen when using US text etc buttons 640 640 x 400 dot mode 720 720 x 400 dot mode US text etc Note As the resolution input for other than 400 lines is done automatical...

Page 11: ... Being careful not to damage the monitor spread out a soft cloth and lay the monitor on it display side down 4 Remove the four screws and then remove the stand from the monitor 5 Attach the arm to the monitor with four screws 6 Connect the AC adapter to the monitor s power terminal Stand cover Information The stand is specially made for use with this monitor Once having removed the stand never att...

Page 12: ...d separate the LCD unit from the stand 3 REMOVING LCD MODULE LCD I F board 1 Remove the 3 screws Lift the rear panel pay attention to the latch in the direction indicated by the arrow and remove the connector 2 Remove the 8 screws Lift the LCD module in the direction indicated by the arrow and remove the connectors and The LCD module separates from the rear panel 1 1 1 2 3 Latch 1 2 3 1 4 5 6 ...

Page 13: ...crews and 6 connectors Remove the I F board Figure B Remove the 2 screws and remove the connectors and Remove the Phone Jack PWB and Sensor PWB Figure C Remove the 2 screws and remove the inverter PWB 5 REMOVING LCD MODULE 1 Remove the 2 screws and remove the LCD connection PWB C B A 1 1 2 A 3 3 3 4 4 4 B C 2 3 1 1 1 1 ...

Page 14: ...el data signal LSB 17 BB1 BLUE 18 BB2 BLUE Pin No Symbol Function 19 BB3 BLUE 20 BB4 BLUE 21 BB5 BLUE MSB 22 GND GND 23 RA0 RED Odd pixel data signal LSB 24 RA1 RED 25 RA2 RED 26 RA3 RED 27 RA4 RED 28 RA5 RED MSB 29 GND GND 30 GA0 GREEN Odd pixel data signal LSB 31 GA1 GREEN 32 GA2 GREEN 33 GA3 GREEN 34 GA4 GREEN 35 GA5 GREEN MSB 36 GND GND 2 5W Speaker 2 D SUB 15 Pin cable Earphone OUT MIC IN Pho...

Page 15: ...EEN LED GREEN PH 6 Power Supply Input Terminal FROM POWER JACK BD Used connector CON 4P Pin No Symbol Function 1 12V 12V supply from power BD 2 12V 12V supply from power BD 3 GND GND 4 GND GND 5 5V NC 6 5V NC JP2 PowerSupplyInputTerminalFromACADAPTER Used connector POWER_JACK20_B Pin No Symbol Function 1 GND 2 12V 12V supply from AC ADAPTER 3 GND J1 Signal Input Terminal Used connector PH12P Pin N...

Page 16: ...e with a new one LED turns on in orange Check power input system 1 AC adapter Normal Connected properly 2 Blown out fuse F1 or power jack PWB 3 EEPROM U11 has 5V VCC 4 LED Check LED for breakage Check the path between JP2 9pin and U11 27pin Check the cable for disconnection Replace any defective unit 1 Adapter 2 A Main PWB 3 Switch PWB 4 Power jack PWB with a new one Backlight turns ON Check for R...

Page 17: ...Screen stays in black Screen stays in white Screen jitters or on screen characters flicker Abnormal color Check the following signals 1 Check if module control signal is output 2 Check if gate voltage is output normally 3 Check if Source voltage is output normally Yes No Yes No Yes No CLOCK and PHASE can be adjusted Does abnormal area move on screen when BLACK LEVEL or CONT is changed after H POS ...

Page 18: ... Check power supply vo ice input and voice input circuit of I F board Signal input at 1st and 7th pins of U12 changes when voice volume is changed Check control PWB and the volume circuit around U11 Signal output at 8th 10th 11th and 13th pins of U12 is normal Check amplifier circuit around U12 Check speakers and speaker cables Check connection of JP1 connector Check fuse F1 of Power Jack PWB ...

Page 19: ...uF RP4 33 8 1 7 2 6 3 5 4 C162 15P_NA R45 NA R12 100 R56 100 RP5 33 8 1 7 2 6 3 5 4 R46 10K C34 0 1uF C35 0 1uF C47 0 01uF X1 OSC50MHz VDD 8 E D 1 OUT 5 GND 4 R57 100 RP6 33 8 1 7 2 6 3 5 4 C8 22uF 16V 10V R49 NC 0603 1 2 C10 0 1uF R58 100 RP8 33 8 1 7 2 6 3 5 4 R50 NC 0603 1 2 B14 120z 100M R1 10K C65 47P C1 22uF 16V U5 24C21 VCC 8 TEST 1 NC 2 WP 3 VSS 4 VCLK 7 SCL 6 SDA 5 RP7 33 8 1 7 2 6 3 5 4 ...

Page 20: ... 2 INT0 14 P3 3 INT1 15 P3 4 T0 16 P3 5 T1 17 P3 6 WR 18 P3 7 RD A16 19 XTAL2 20 XTAL1 21 VSS 22 A8 P2 0 24 A9 P2 1 25 A10 P2 2 26 A11 P2 3 27 A12 P2 4 28 A13 P2 5 29 A14 P2 6 30 A15 P2 7 31 PSEN 32 ALE PROG 33 EA VPP 35 AD7 P0 7 36 AD6 P0 6 37 AD5 P0 5 38 AD4 P0 4 39 AD3 P0 3 40 AD2 P0 2 41 AD1 P0 1 42 AD0 P0 0 43 VCC 44 NIC 1 NIC 12 NIC 23 NIC 34 R72 100K 0603 C86 33P SCL SDA RESET KEY_DOWN KEY_...

Page 21: ...26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 C102 47P R101 4 7K B74 120z 100M C143 47P B63 120z 100M C104 47P FD5 FIDUCIAL MARK 1 Q11 MMBT3904L C B E FD6 FIDUCIAL MARK 1 C144 47P B61 120z 100M C105 47P C111 47P JP5 PH_5P 1 2 3 4 5 B39 120z 100M C110 47P B40 120z 100M C106 47P MTG1 ID3 2 OD8 0 4 5 6 7 9 10 1 2 3 8 11 12 R104 4 7K B41 120z 100M C108 47P B42 120z 100M C109 47P B43 120z 100M C107 47P ...

Page 22: ...5 10K R124 47K R125 NA_5K1 R61 47K R126 NA_5K1 R13 1206 R14 0 1206 C166 220uF 25V CPWX8 3 R106 10K AUDIO_IN_R EAR_PHONE_R AUDIO_IN_L AUDIO_PWM EAR_PHONE_R EAR_PHONE_L EAR_PHONE_L 5V AUDIO_GND AUDIO_GND AUDIO_GND AUDIO_GND GND AUDIO_GND AUDIO_GND GND AUDIO_GND 12VIN VDD_12 GND 5V AUDIO_PWM AUDIO_PWR TDA7057AQ EAR_PHONE_L EAR_PHONE_L EAR_PHONE_R EAR_PHONE_R AUDIO_IN_L AUDIO_IN_R GND GND AUDIO IN TO ...

Page 23: ...ACK 5 4 3 2 1 B3 120z 100M 1 2 B1 120z 100M 1 2 B4 120z 100M 1 2 B2 120z 100M 1 2 C1 0 1uF 1 2 MIC_IN_R EAR_PHONE_L GND EAR_PHONE_R MIC_IN_L EAR_PHONE_L EAR_PHONE_R MIC_IN EAR_PHONE_OUT MIC_IN_R MIC_IN_L GND EAR_PHONE_R EAR_PHONE_R EAR_PHONE_L EAR_PHONE_L TO POWER JACK BD ...

Page 24: ...3 SW3 SELECT 1 2 4 3 SW2 UP 1 2 4 3 JP1 PH_9 1 2 3 4 5 6 7 8 9 SW1 SW 1 2 4 3 SW6 HOT_KEY 1 2 4 3 KEY_MENU KEY_SELECT KEY_UP KEY_DOWN HOT_KEY SOFT_PWR LED_AMBER LED_GREEN GND KEY_MENU KEY_SELECT KEY_UP KEY_DOWN HOT_KEY SOFT_PWR LED_AMBER LED_GREEN GND TO INTERFACE BD ...

Page 25: ...3 2 1 F1 RGE500 JP3 PH_5P 1 2 3 4 5 J1 PHONEJACK 5 4 3 2 1 MIC_OUT_R AUDIO_IN_L AUDIO_IN_R EAR_PHONE_L EAR_PHONE_L EAR_PHONE_R EAR_PHONE_R MIC_OUT_L GND 12VIN GND GND AUDIO_IN MIC_OUT MIC_OUT_R MIC_OUT_L GND EAR_PHONE_R EAR_PHONE_R EAR_PHONE_L EAR_PHONE_L AUDIO_IN_R AUDIO_IN_L GND GND EAR_PHONE_R EAR_PHONE_L EAR_PHONE_L EAR_PHONE_R TO INTERFACE BD TO PHONE JACK BD 12V 12V NC GND GND ...

Page 26: ... 4 5 6 7 D2 BAV99LT1 D4 BAV99LT1 B4 120z 100M 1 2 C1 0 1uF D3 BAV99LT1 L1 NC 1 2 L2 NC 1 2 J3 PHONEJACK 5 4 3 2 1 F1 RGE500 JP3 PH_5P 1 2 3 4 5 J1 PHONEJACK 5 4 3 2 1 MTG1 ID3 2 OD8 0 4 5 6 7 9 10 1 2 3 8 11 12 EAR_PHONE_L EAR_PHONE_L EAR_PHONE_R EAR_PHONE_R MIC_OUT_L MIC_OUT_R 12VIN GND GND GND 12VIN 12VIN AUDIO_IN MIC_OUT MIC_OUT_R MIC_OUT_L EAR_PHONE_R EAR_PHONE_R EAR_PHONE_L EAR_PHONE_L AUDIO_...

Page 27: ...1 2 3 8 11 12 R9 50K C3 10u 16V FD1 FIDUCIAL MARK 1 FD2 FIDUCIAL MARK 1 FD3 FIDUCIAL MARK 1 FD4 FIDUCIAL MARK 1 R1 10K R4 10K C4 0 1uF C1 0 047uF U1B LM358 SO8 5 6 7 8 4 Q1 MMBT3904L R12 LS1001 NC MTG1 ID3 2 OD8 0 4 5 6 7 9 10 1 2 3 8 11 12 R8 9001 MTG4 ID3 2 OD8 0 4 5 6 7 9 10 1 2 3 8 11 12 R11 10K R3 100K AUTO_BRI_CTRL GND 5V GND GND 5V GND 5V GND GND 5V GND GND GND GND GND ...

Page 28: ...storedinaretrievalsystem ortransmitted Inanyformorbyanymeans electronic mechanical photocopying recording orotherwise withoutpriorwrittenpermissionofthepublisher SHARP CORPORATION Digital Document Systems Group Quality Reliability Control Center Yamatokoriyama Nara 639 1186 Japan 2001 June Printed in Japan ...

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