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Mitsubishi E55LCD Service Manual

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PART NO. 599910610

SERVICE MANUAL

E55LCD
COLOR MONITOR
MODEL No.
NL1503 (B)
NEC-MITSUBISHI ELECTRIC VISUAL SYSTEMS CORPORATION
AUGUST 2002
200208
08R220B3

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Summary of Contents for Mitsubishi E55LCD

  • Page 1: Service Manual

    PART NO. 599910610 SERVICE MANUAL E55LCD COLOR MONITOR MODEL No. NL1503 (B) NEC-MITSUBISHI ELECTRIC VISUAL SYSTEMS CORPORATION AUGUST 2002 200208 08R220B3...
  • Page 2 WARNING The SERVICE PERSONNEL should have the appropriate technical training, knowledge and experience necessary to: • Be familiar with specialized test equipment, and • Be careful to follow all safety procedures to minimize danger to themselves and their coworkers. To avoid electrical shocks, this equipment should be used with an appropriate power cord. This equipment utilized a micro-gap power switch.

  • Page 3: Table Of Contents

    CONTENTS Page No. USER'S MANUAL ------------------------------------------------------------------- 1-1 SERIAL NUMBER INFORMATION --------------------------------------------- 2-1 DISASSEMBLY ----------------------------------------------------------------------- 3-1 ADJUSTMENT PROCEDURES -------------------------------------------------- 4-1 INSPECTION --------------------------------------------------------------------------- 5-1 TROUBLE SHOOTING ------------------------------------------------------------- 6-1 CIRCUIT DESCRIPTION ----------------------------------------------------------- 7-1 REPLACEMENT PARTS LIST --------------------------------------------------- 8-1 BLOCK DIAGRAM ------------------------------------------------------------------- 9-1 SCHEMATIC DIAGRAMS -------------------------------------------------------- 10-1...

  • Page 4: User's Manual

    User's Manual www.nec-mitsubishi.com...

  • Page 5: Canadian Department Of Communications Compliance Statement

    This device complies with Part 15 of FCC Rules. Operation is subject to the following two conditions. (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. U.S. Responsible Party: NEC-Mitsubishi Electronics Display of America, Inc. Address: 1250 North Arlington Heights Road, Suite 500 Itasca, Illinois 60143-1248 Tel.
  • Page 6 TCO’99 Congratulations! You have just purchased a Lead** TCO’99 approved and labeled product! Your choice Lead can be found in picture tubes, display screens, solders and has provided you with a product developed for capacitors. Lead damages the nervous system and in higher professional use.
  • Page 7 Index Warning, Caution ........English-1 Waarschuwing, Let op! ....Nederlands-1 Declaration ..........English-1 Kennisgeving ........Nederlands-1 Contents ..........English-2 Inhoud ..........Nederlands-2 Quick Start ..........English-2 Snel aan de slag ......Nederlands-2 Controls ..........English-5 Besturingselementen ....... Nederlands-5 Recommended Use ........ English-7 Aanbevolen gebruik ......
  • Page 8 English Deutsch Ελληνικά Español Français Italiano Nederlands Русский...

  • Page 9: Declaration Of The Manufacturer

    ® is a U.S. registered trademark. NERGY As an E Partner, NEC-Mitsubishi Electric Visual Systems Corporation has determined that this product meets the NERGY guidelines for energy efficiency. The E emblem does not represent EPA endorsement of any product or...

  • Page 10: Quick Start

    Contents Your new LCD monitor box* should contain the following: • LCD Monitor with tilt base • Power cord • Video Signal Cable (D-SUB to D-SUB Cable) • User’s Manual User’s Manual Power Cord Video Signal Cable (D-SUB to D-SUB Cable) Remember to save your original box and packing material to transport or ship the monitor.
  • Page 11 Input1 Input2 Figure D.1 Power Cord Signal cable Press an arrow point “ ” Connector Cover portion with take off Power Cord Signal cable Figure C.1 6. Turn on the monitor with the Power Button (Figure E.1) and the computer. 7.

  • Page 12: Remove Monitor Stand For Mounting

    Remove Monitor Stand for Mounting To prepare the monitor for alternate mounting purposes: 1. Place monitor face down on a non-abrasive surface (Place the screen on a 36 mm platform so that the stand is parallel with the surface.) (Figure G.1). 2.

  • Page 13: Auto Adjust

    Controls OSD (On-Screen-Display) Controls The OSD controls on the front of the monitor function as follows: To access OSD press any of the control buttons. To change D-SUB signal input, auto detect. Control Switch Function When no OSD Display Open menu Select to next menu Auto-Adjust (Hot key) Select to next item...

  • Page 14: Colour Control Systems

    LEFT/RIGHT: Controls Horizontal Image Position within the display area of the LCD. DOWN/UP: Controls Vertical Image Position within the display area of the LCD. Colour Control Systems Six colour presets select the desired colour setting. Colour temperature increases or decreases in each preset. RGB Grain: Colour grain can be further managed by R.G.B.

  • Page 15: Recommended Use

    Recommended use Safety Precautions and Maintenance FOR OPTIMUM PERFORMANCE, PLEASE NOTE THE FOLLOWING WHEN SETTING UP AND USING THE MULTISYNC LCD COLOUR MONITOR: • DO NOT OPEN THE MONITOR. There are no user serviceable parts inside and opening or removing covers may expose you to dangerous shock hazards or other risks.

  • Page 16: Specifications

    Do not use primary colour blue on a dark background, as it is difficult to see and may produce eye fatigue due to insufficient contrast. Specifications Monitor Specifications Notes E55LCD (NL1503) LCD Module Diagonal: 38 cm/15 inches Active matrix; thin film transistor (TFT) Viewable Image Size: 38 cm/15 inches liquid crystal display (LCD);...
  • Page 17 Features Reduced Footprint: Provides the ideal solution for environments requiring superior image quality but with size and weight limitations. The monitor’s small footprint and low weight allow it to be moved or transported easily from one location to another. Colour Control System: Allows you to adjust the colours on your screen and customize the colour accuracy of your monitor to a variety of standards.

  • Page 18: Troubleshooting

    NOTE: As with all personal display devices, NEC-Mitsubishi Electronic Displays recommends using a screen saver at regular intervals whenever the screen is idle. Image is unstable, unfocused or swimming is apparent •...
  • Page 19 Printed in China Printed on recycled paper 15501341 1-16...

  • Page 20: Serial Number Information

    Serial Number Information Refer to the serial number information shown below. EX.) SERIAL NUMBER LABEL Model Name : E55LCD SERIAL NO. : g g g g g g g g g Manufactured Year : ( Last digit ) Manufactured Month :...
  • Page 21 DISASSEMBLY g Before you disassembly the set, turn off power and pull out the power plug. g Use the proper screwdriver. If oversize or undersize is used, screws may be damaged. g Assembly is the opposite process of disassembly. g Note: If consignment the parts begins, the part number of NPG is used. SYMBOL Part No.
  • Page 22 SYMBOL Part No. for NPG Part No. for NMV DESCRIPTION 10102971 79PQ5001 CABINET BACK 14000181 SCREW T3X10 SYMBOL Part No. for NPG Part No. for NMV DESCRIPTION 14300071 P3*6/W MC (NI) J102...
  • Page 23 SYMBOL Part No. for NPG Part No. for NMV DESCRIPTION 14300071 P3*6/W MC (NI) 14000171 VB-1 4*10 MC(NI) 10102981 79PQ5002 CABINET FRONT ASSY AS0R21ML 79PQ5068 SW INSERT ASSY SYMBOL Part No. for NPG Part No. for NMV DESCRIPTION 14300071 P3*6/W MC (NI) 12300831 SHIELD, COVER 14300201...
  • Page 24 SYMBOL Part No. for NPG Part No. for NMV DESCRIPTION 14300161 P3*8*8+SPW+WAS MC(NI) AM0R22ML 79PQ5011 MAIN INSERT ASSY J601 J301 J302 SYMBOL Part No. for NPG Part No. for NMV DESCRIPTION 14300161 P3*8*8+SPW+WAS MC(NI) 14300181 P3*8*8+SPW+GEAR MC(NI) 14300091 F3*8 MC (NI) 14300151 P4*10*10+SPW+WAS MC(NI) AP0R22ML...
  • Page 25 SYMBOL Part No. for NPG Part No. for NMV DESCRIPTION 14300211 P2.5*4 MC (NI) SYMBOL Part No. for NPG Part No. for NMV DESCRIPTION JG552011 79PQ5063 TFT LM150X05-A3 LGPL AK0R21TL 79PQ5069 CN SMT8S9 ASSY...
  • Page 26 SYMBOL Part No. for NPG Part No. for NMV DESCRIPTION 14000171 VB-1 4*10 MC(NI) 14300151 P4*10*10+SPW+WAS MC(NI) 11000811 79PQ5004 COVER, TILT, FRONT 14900012 79EN0287 HINGE UNIT 12000621 79EN0282 TILT, FRAME, STAND 11000821 79PQ5005 TILT, BASE SYMBOL Part No. for NPG Part No.

  • Page 27: Adjustment Procedures

    ADJUSTMENT PROCEDURES TABLE OF CONTENS Page 1. Application --------------------------------------------------------------------------------------------------- 4-2 2. Standard setting states ----------------------------------------------------------------------------------- 4-2 3. Names of each LCD monitor part, and adjustment method ------------------------------------- 4-2 3.1. Configuration of front control panel -------------------------------------------------------------------- 4-2 3.2. OSD operation method ----------------------------------------------------------------------------------- 4-2 4.
  • Page 28 1. Application This adjustment procedure applies to the 15-inch LCD display (E55LCD). 2. Standard setting state Unless designated in particular, the test is carried out with the following state. Item State for Adjustment Power voltage AC100V ~ 240V Input frequency 1024 X 768 ;75Hz...
  • Page 29 4.Set adjustments 4.1 Measuring instruments to be used The measuring instruments considered necessary for the adjustment of the E55LCD set are specified below. (1) Equipment that can generate an output of the adjusted VG-819 unit or equivalent. 4.2 Power source voltage 100 - 120V/ 220 - 240V±5%, 50/60Hz...
  • Page 30 4.7 Color temperature check (1) Input timing 1024X768;75Hz, XGA75 with signal generator, then set pattern to full white and video signal level to 0.7V. (2) OSD brightness setting to MAX(100) and contrast setting to 80. (3) OSD into factory mode and adjust R;G;B gain to meeting below color coordination. (4) Each color temperature setting as below 9300K: x = 0.281+/- 0.03 y = 0.311 +/- 0.03...
  • Page 31 INSPECTION TABLE OF CONTENS Page 1. Electric performance ------------------------------------------------------------------------------------- 5-2 1.1. Confirming the operation of operation SW --------------------------------------------------------- 5-2 1.2. Frequency change speed ------------------------------------------------------------------------------- 5-2 1.3. Confirming power management function ----------------------------------------------------------- 5-2 2. Safety test -------------------------------------------------------------------------------------------------- 5-2 2.1. Isolation voltage ------------------------------------------------------------------------------------------- 5-2 2.2.

  • Page 32: Electric Performance

    1. Electric performance 1.1 Confirming the operation of operation SW (1) Input XGA75 pattern “Crosshatch”. (2) The picture must appear within four seconds after turning power switch ON. (3) Confirm that Power-On Indicator is lit. (4) Synchronization must not flow when power switch is turned ON and OFF. (5) OSD must appear when Menu or Select button is pressed.

  • Page 33: Factory Mode

    3. Factory mode Mention the contents of the factory menu letter. Page 1: 1. A “Menu” key is pressed and the "BIAS" menu is displayed. 2. Press ”Select” key to adjust the cursor to R,G or B. 3. Press (▲) or (▼) key can adjust each value is changed. Page 2: 1.
  • Page 34 Page 5: 1. A “Menu” key is pressed and the "TOTAL TIME RESET" menu is displayed. 2. Reset by (▲) or (▼) key. Page 6: 1. A “Menu” key is pressed and the "EEP WRITE PROTECT" menu is displayed. 2. Change setting EEPROM write Protect by ”Select”...

  • Page 35: External Inspection On The Lcd Module

    4. External inspection on the LCD module Items Criteria Remarks 1) Bright Dots Horizontally adjacent 2 dots (R+G, G+B) Max. 2 Note 1 2) Dark Dots Horizontally adjacent 2 dots (R+G, G+B) Max. 2 Note 2 Horizontally, vertically or combined adjacent 3 dots (separately Adjacent Dots 3) Bright Dots bright dots and dark dots)
  • Page 36 Note 3. Horizontally, vertically or combined adjacent 3 dots (separately bright dots and dark dots) Count as adjacent 3 dots Do not count as adjacent 3 dots Note 4. Do not count the horizontally adjacent 2 dots (R-G, G-B) Note 5. Distance between bright dots Count as defect Do not count as defect ≤...
  • Page 37 Note 7. Two or more pixels or sub-pixels with more than one fault of 5) within 5x5 pixels 5x5 pixels Dot Defect (5) The number of cluster within all screen : Max. 3 1 Cluster Note 8. Two or more pixels or sub-pixels with more than one fault of 1) or 2) within 5x5 pixels Do not count as defect Count as defect 5x5 pixels...

  • Page 38: Inspection Of Plug & Play Communication And Osd "Monitor Information" For Model Name/ Serial Number

    EDID JIG (NPG) 5.2 Input Signal Horizontal sync frequency: Not specified. Vertical sync frequency: Not specified. 5.3 Programs Required NPGV233.EXE E55LCD.BAT E55LCD.TXT 5.4 Inspection Procedures a. Factory Mode: Press “Menu“ and ”Select” button at the same time then power ON.
  • Page 39 Copy the above-mentioned programs in an adequate directory. e. Set up the MO-DOS mode. (DOS Prompt of Windows95/98 is also acceptable.) Execute the E55LCD.BAT from the command line. g. Press the F2 key to start the inspection of DDC2B.
  • Page 40 Press the Enter key. Then, the EDID data, OSD model name, and the serial number begin to be written in. Display “MONITOR INFO.” of the OSD, and confirm that the model name and serial number have been correctly written. k. Press the F2 key to start the inspection of DDC2B. After the completion of inspection, the contents of EDID are displayed.

  • Page 41: Error Messages

    5.6 EDID Data File The EDID data file text is shown below. When you write or inspect EDID for this monitor, the following table can be used. File name : E55LCD.TXT FF FF FF FF FF FF 34 AC 4E...

  • Page 42: Preset Timing

    6. Preset Timing Horizontal Vertical Timing Period SYNC. Front Back Display frequency Period SYNC. Front Back Display HS/VS requency name Clock pulse porch porch time pulse porch porch time Polarity (Hz) (KHz) (MHz) (ms) (µS) (ms) (ms) (ms) (ms) (µS) (µS) (µS) (µS)
  • Page 43 TROUBLE SHOOTING TABLE OF CONTENTS Page 1. No display of screen (Screen is black, color of LED is amber) ---------------------------------- 6-2 2. Nothing displays on screen (Screen is black, color of LED is green) -------------------------- 6-3 3. Checking the back light unit ----------------------------------------------------------------------------- 6-6 4.

  • Page 44: No Display Of Screen (Screen Is Black, Color Of Led Is Amber)

    1. No display of screen (Screen is black, color of LED is amber) Does OSM display when you When a signal isn't being inputted, it is indicated with "NO SIGNAL". push “Menu, Select ,UP or It is indicated with "OUT OF RANGE" at the time of the frequency DOWN”...

  • Page 45: Nothing Displays On Screen (Screen Is Black, Color Of Led Is Green)

    2. Nothing displays on screen (Screen is black, color of LED is green) Is backlight lit? Refer to section 3 “Checking the backlight unit. Does computer output RGB Check the video cable for failure. video signals? Check the host for output signal with all black only. 1) Change pattern of video signal output on the host.
  • Page 46 Continue Is 5V voltage provided to pins 38 and 39 of J301 in MAIN board? Is 5V voltage provided to pin 38 and 39 of J301. Failure point Check Q301and IC301. Failure point J301 cable pulled out or disconnected. Is a PCLK being outputted under the condition Failure point that pin2 of J301in main BD? 1) IC401 failure.
  • Page 47 Continue Failure point Check the PHD signal is ouput on J301 pin6. 1) IC401 failure. 2) Printed wire broke between U401 and J301 pin6. 3) R437 or C346 failure. Check the data signal output on J301 and J302 R, G, B data pin. Failure point 1) IC401 failure.

  • Page 48: Checking The Back Light Unit

    3. Checking the back light unit Is 12V voltage provided to inverter? Failure point Check Power Board. Is 12V-source voltage provided to pins 1 and 2 of CN1 in inverter module? Failure point Inverter cable disconnection. Check the ON/FF signal of equal “H”...

  • Page 49: Abnormal Screen

    4. Abnormal screen Check the R, G, B video signal from computer Failure point input on D-Sub R,G,B connector. 1) No R, G and B video signal output from host computer. Check computer. 2) Video signal cable disconnection. Check the R,B,G input signals on IC401 pin 2, 13, 20,respectively that their level is 0.7Vp-p Failure point typical.

  • Page 50: Abnormal Plug And Play Operation

    5. Abnormal plug and play operation Abnormal DDC2B Confirm the output of serial data on IC201 pin 6 synchronize SCLK at TTL level. Failure point IC201 failure. Failure point 1) The host machine isn't communicating in DDC2B mode. 2) The video cable may have failed or may not to have connections for DDC.

  • Page 51: Checking The Interface Circuit Of Sync Signal

    6. Checking the interface circuit of sync signal 6.1 Checking the control circuit of horizontal sync pulse Check the horizontal sync signal on IC202 pin1 at Failure point TTL level. 1) No separate sync or composite sync output by host. (Confirm the host, output the sync signal.) 2) Video cable may have failed.

  • Page 52: Checking The Control Circuit Of Vertical Sync Pulse

    6.2 Checking the control circuit of vertical sync pulse Check the vertical sync signal on IC202 pin5 at TTL level. Failure point 1) No separate sync output signal from the host.(Check the host.) 2) Video cable may have failed. 3) Printed wire broke between J201 pin 14 and IC202 pin5 4) L208 or R215 open.

  • Page 53: Checking The Resolution Change Ic Movement

    7. Checking the resolution change IC movement Is there +3.3V supply on IC401 pins49, 57, 67, 79, 89, 101, 113, 125, 132, 143, 159. Is there +2.5V SUPPLY ON IC401 PIN 3, 6,14,17, 21,24, 26, 32, 38, 46, 71, 91, 103,123, 145,147, 152;Is there +3.0V supply on IC401 Pin8.

  • Page 54: No Power On

    8. No power on Check the +12V power provided from Power Board. Failure point Power Board failure. Check the +5V and +3.3V power from IC601. Failure point "Checking the DC/DC converter circuit". Proceed section 9 "Checking the operation of CPU ". 6-12...

  • Page 55: Checking The Operation Of Cpu

    9. Checking the operation of CPU Is there +3.3V supply on IC102 pins44? Failure point L110 open. Is 12MHz clock input to IC102 pin20, 21 at TTL level? Failure point X101 failure. Failure point IC102 failure. 6-13...
  • Page 56 CIRCUIT DESCRIPTION TABLE OF CONTENTS Page 1. Power circuit ------------------------------------------------------------------------------------------------- 7-2 1.1 Power input ------------------------------------------------------------------------------------------------- 7-2 1.2 Soft-power circuit ------------------------------------------------------------------------------------------ 7-2 1.3 DC to Dc circuit -------------------------------------------------------------------------------------------- 7-2 1.4 Panel Vcc control ------------------------------------------------------------------------------------------ 7-2 2. Microprocessor control circuit ---------------------------------------------------------------------------- 7-2 2.1 Clock circuit ------------------------------------------------------------------------------------------------- 7-2 2.2 I2C buses --------------------------------------------------------------------------------------------------- 7-2 2.3 General-purpose port ------------------------------------------------------------------------------------ 7-2...

  • Page 57: Power Circuit

    1 Power Circuit 1.1 Power input 12V DC input from power Board through J601 to interface. 1.2 Soft-power circuit IC602 control the Q602 and Q601 for 12V into the DC to DC circuit . IC602 pin5 Low is OFF status ; Hi is ON status While “ON”...
  • Page 58 2.3.3 LED control IC102 pin 42 control Q102 for Green LED lit. IC102 pin 43 control Q101 for RED LED lit. 2.3.4 Data memory The display control data are held by the EEPROM(IC101); These display control data are accessed through the I2C bus of the MCU., 3 Scaler The scaler IC (IC401) is controlled by MCU through the I2C bus.

  • Page 59: Replacement Parts List

    REPLACEMENT PARTS LIST The components specified for Model E55LCD SYMBOL Part No for NPG Part No for NMV DESCRIPTION *** ICS *** IC101 EHA10081 79PQ5015 IC SMD 24LC16B SO8 IC102 EHA10251 79PQ5019 IC NT68F631L MCU8BIT128K IC201 EHA10091 79PQ5016 IC SMD 24LC21 SO8...
  • Page 60 Part No for NPG Part No for NMV SYMBOL DESCRIPTION PD901 EJ100061 79PQ5022 DI P6KE200A *** TRANSFORMERS *** T901 HE100061 79PQ5061 TRANS POWER 49A-1041 *** RELAYS & SWITCHES *** SW800 JC300111 79EN0691 SW-TACT SKQNAED010 SW802 JC300111 79EN0691 SW-TACT SKQNAED010 SW803 JC300111 79EN0691 SW-TACT SKQNAED010...
  • Page 61 11000811 79PQ5004 COVER, TILT, FRONT TILTR 11000842 79PQ5007 COVER, TILT, REAR *** PRINTED & PACKING MATERIALS *** CARTON 13202081 79PQ5008 CARTON BOX E55LCD(MITSUBI IDLABE 15001781 79PQ5009 RATING LABEL E55 LCD (MIT MANUAL 15501341 79PQ5010 MANUAL E55 LCD (MITSUBISH PABAG 13700161...
  • Page 62 Part No for NPG Part No for NMV SYMBOL DESCRIPTION R101 EP224723 79PQ5026 CHIP NETWORK 1/10W(T) 5% R102 EP224723 79PQ5026 CHIP NETWORK 1/10W(T) 5% R103 FM010472 79EN0185 R SMD 1/10W(T) 5% 4.7K R104 FM010472 79EN0185 R SMD 1/10W(T) 5% 4.7K R107 FM010472 79EN0185...
  • Page 63 Part No for NPG Part No for NMV SYMBOL DESCRIPTION R405 HM014021 79PQ5078 BEAD SMD FCA3216M4-301T02 R406 FM100390 79EN0231 R SMD 1/8W(T) 5% 39 R407 FM100390 79EN0231 R SMD 1/8W(T) 5% 39 R408 FM100270 79EN0228 R SMD 1/8W(T) 5% 27 R409 HM014021 79PQ5078...
  • Page 64 Part No for NPG Part No for NMV SYMBOL DESCRIPTION R613 FN012941 79PQ5048 CHIP 1/10W(T) 1% 2.94K R614 FM010393 79PQ5037 CHIP 1/10W(T) 5% 39K R615 FM010333 79EN0183 R SMD 1/10W(T) 5% 33K R616 FM010333 79EN0183 R SMD 1/10W(T) 5% 33K R617 FM010393 79PQ5037...
  • Page 65 Part No for NPG Part No for NMV SYMBOL DESCRIPTION C118 GM410253 79EN0502 C SMD X7R/T 1000P/50V K C119 GM410423 79EN0504 C SMD X7R/T 0.1U/16V K C121 GM410253 79EN0502 C SMD X7R/T 1000P/50V K C122 GM410423 79EN0504 C SMD X7R/T 0.1U/16V K C125 GN310629 79PQ5054...
  • Page 66 Part No for NPG Part No for NMV SYMBOL DESCRIPTION C340 GM41005D 79EN0659 C CERA NPO/T 10P/50V D C341 GM41005D 79EN0659 C CERA NPO/T 10P/50V D C342 GM41005D 79EN0659 C CERA NPO/T 10P/50V D C343 GM422052 79EN0509 C SMD NPO/T 22P/50V J C344 GM41005D 79EN0659...
  • Page 67 Part No for NPG Part No for NMV SYMBOL DESCRIPTION C430 GN347629 79PQ5056 C SMD ELE85 16V 47U M C431 GM410423 79EN0504 C SMD X7R/T 0.1U/16V K C432 GM410253 79EN0502 C SMD X7R/T 1000P/50V K C433 GN347629 79PQ5056 C SMD ELE85 16V 47U M C434 GM410423 79EN0504...
  • Page 68 Part No for NPG Part No for NMV SYMBOL DESCRIPTION C903 GJC22285 79EN0656 C SAFETY Y/D 2200P/250V M C904 GJC22285 79EN0656 C SAFETY Y/D 2200P/250V M C905 GAY00010 79PQ5049 C ELE105 100U 400V M HITA C906 GB7103H3 79PQ1746 CERAMIC Y5P(B)/T0.01U/1KV C907 GA310555 79PQ0196...

  • Page 69: Block Diagram

    BLOCK DIAGRAM...
  • Page 70 SCHEMATIC DIAGRAM MAIN PWB (CPU) (1/5) MCU_3_3V MCU_PWR L110 L101 MCU_PWR MCU_PWR BLM11A121SPT R101 4k7 MCU_PWR C101 104P C102 C103 C104 IC101 R124 10U/16V 104P 104P R136 R102 IC102 24C16/SO8 MENU LED_R_CTL P1.0/T2 P0.0/AD0 SELECT LED_G_CTL P1.1/T2EX P0.1/AD1 R108 P1.2/EC1 P0.2/AD2 DOWN R110...
  • Page 71 SCHEMATIC DIAGRAM MAIN PWB (PANEL_INTERFACE) (2/5) SMB160808-N1-121P PVCC L301 PVCC L302 C359 C301 C334 100U 102P 6.3V MODE R301 SMB160808-N1-121P R302 GO[0..7] GE[0..7] RO[0..7] RE[0..7] J302 PCLK 36PX1/0.5MM/ST R306 0 IL-FHR-36S-HF J301 IL-FHR-40S-HF 3V3D 40PX1/0.5MM/ST L304 L303 SMB160808-N1-121P MTG1 MTG2 MTG3 MTG4 MTG/ID1.2/OD2...
  • Page 72 SCHEMATIC DIAGRAM MAIN PWB (POWER) (3/5) 12VIN 12VIN R601 R635 C633 104P R603 3V3D R602 C601 102P C602 Q601 104P SI2301 IC601 P_Vref R605 R606 PWR_EN DTC114WK Vref R607 1/10W 1/10W Q602 5VFB 3_3VFB R608 R609 R604 +IN1 +IN2 P_Vref P_Vref 1/10W 1/10W...
  • Page 73 SCHEMATIC DIAGRAM MAIN PWB (SCALAR) (4/5) 3V3D 3V3D_SCALER R401 4k7 C402 C403 L401 C405 C406 C407 C408 C409 C410 C411 C412 C413 C414 C415 L402 3V3D_SCALER 2V5D CSG4 SMB160808-N1-121P SMB160808-N1-121P R402 100K R431 C404 C401 NC (10K) 47U/16V 47U/16V R432 R439 BRIGHTNESS GNDPLL...
  • Page 74 SCHEMATIC DIAGRAM MAIN PWB (VGA INPUT) (5/5) R220 IC203 DDC_S0 DDC_SCL L201 R_IN 4 DDC_S1 51_TXD FCM2012-121T06 SCL_DDC J201 DDC_SDA D203 C201 DAN217/T146 51_RXD SDA_DDC AGND AGND L202 R221 AGND 74HC4052D G_IN 4 FCM2012-121T06 A5V_OR_DSUB D204 DAN217/T146 C202 MCU_3_3V 3V3D AGND D211 L203...
  • Page 75 SCHEMATIC DIAGRAM POWER PWB (1/1) C910 250V_3300P D921 T901 SP1060 TH901 EFD30 SCK103 L932 J932 33UH BD901 D2SB60A C932 C937 PD901 C906 25V_220U-M 50V_0.1U P6KE200A 1KV_0.01U C935 INV_ON/OFF C921 C922 C905 C911 50V_0.1U 25V_680U-M 25V_680UF-M 400V_100UF 0.01U/1KV TO INVERTER L933 R905 R902 D902...
  • Page 76 SCHEMATIC DIAGRAM INVERTER (1/1) On/Off Br. Control CR10 10-7...

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