SERVICE MANUAL & TROUBLESHOOTING
Contents
1. Symptom 1 4 Le ER 2 ERO B401 2 1202100 LCD no display but power and back light i RAMS lC ERS IN Z 3 play butp and back light is good or show abnormal picture GE D s 44 1 id Ee oeren 2 3207100M ERS G2 B451 INT 2 1202 100 EGO ES G3 B471 2 1202 100 G4 ny 2_1202 00 65 B491 2 1202100 3 DVDDA E G6 B501 nn 2 1202100 4 45V k ee B511 I 2 1202100 EG5 Bee Daur d E B2 B521 es 2202 100M E B3 B541 2 1202100 EBI SE En B551 rwv 2 1202100 ES SVDDA say 85 B561 ywn 2 1202100 E Le Lee Len Tres uno B6 geri Inn 2 1202100 OauF 22uFnbvo tu our our our enee RI E d Tae OR B591 nn 2 1202100 ORO VGA R 10K B9 Gio ean SR RODA an O R3 BRI 2 1202100 ORI 2 O R4 rn 2 1202100 OR2 11 3 C42 RED Tom Les2. 2 r 9 ease Puseur ol lo ncn 1 GA Base emeng _ ____ 15120122 gt Base Jofel keen le eege G 654415120008 aru t eA GO exero JANGE vetaa Sefe 09 630215120009 rnesa C kenne CA 8491512000 Jegen AT 99 42215150002 wre weg psawsesezl amp emzewoor urcacnren g s _ as M 99 esmioamon Teewugsstouune a mont 2 jssmusnasa ar 6 gt Tel 9 571103010608 6 H H A LAN x W A e Ai P 4 4 4 3 VAN NS VELA Welty CAE e KAN D VOR 4 2 N P v 99 642215130051 GABLE_ASSY SIGNALDIS PHRIZ SR 1SEX 08 642215130006 WRE ASSY 10O7 426 0 wre ee panses 1 6 s42215130004 WRE ASSY t007 p26 P 4smNSNI5EX 1 57 99 assy 1 Pc GD 0015120002 Q famosos PwAPWA TsOEX TASW 1 69 essen aw fija 654415120007 Sev
3. OSCS0MHz 7791 Sean PD34 PD35 8 1 0 87 HSYNC 2 1 i 19 did GND PSCAN PD35 gt 0_B7 At af d 1 STATE veoL He H_POLARITY 22 V STATE H POL H V POLARITY x15 osp HREF PD37 HI CLAMP SW CLAMP x116 050 H9 BB Ng Ree MA Il 4 GIN HE Di x1 osp Poso HZ 5V 5 14 Ri AA NC ge 118 Lig nz nadi END 81 GND HD N ve ec 3 KAI Gen PD41 HE vec H6 x120 050 PD42 HAK B VIN CLAMP TIME 22 121 OSD DATAS PD43 HAK S V DET V S S 2 122 osp_Fsw PD44 HK V TIME GATESW V S SIN HFS e PD45 3 x HCLK HFS PD46 4 M52347 HDATAOK HCLK PD47 lt HDATA 665 Ee SS SN RESET ______100 RESETn R37 Nc aln ak IRQ 5 E 101 no POLKA 44 R35 0 _ 8141 2 1202 100 1 2 VIN 57 113 POLKB 76 B161 2 1202 100 1 E gt PDISPE gt gt DE 100 C58 4 726059 4 7uFM6V 0 47uFM6V 11 4 73 8171 vn 2 1202100 VSYNC 795 2 1 104 16 2 PVS 74 B181 rn 2 120z 100M V SYNC L lt dew x 0 PHS H_SYNG A X102 MERA PBA 102 PPWR Ze zt UR EN LCD wen LcD v mires PBIAS 25 EN BL 105 gt RASA 10KINA 204 Meee Sal see We R46 z 10K 4 124
4. 5 4 3 1 12V gt 5V VDD 12 POWER CONN m 0805 5 B22 1 2 SHORT FOR 12V ADAPTOR 5002 100M R110 3216 POWER 2sc1623 2 3 SHORT OR OPEN FOR 12V 5V I P 4 EE ER L 2 3 SHORT OR OPEN FOR 12V 5V I P 12VIN GND 7 GND B PH 6 CHOKE1 m 4 De COM CHOKE 4A 4 E 09 1 127 1 vec 4 4 L 12v ZS T 1 E 1 2 12 5V gt 3 3V GND 7 ss H2 MLL34B H 330uF 16V ene Git H comp wel C73 icd 3 3V 5v 1 YS 2 0805 Rea BOOT 5v 40 2K EN Sen UGATE 2 See d 9 0805 33P END PHASE CHOKE CDRHI2 T vouro Kg HIP6013 4 GND GND GND VOUTI 4 00105 R67 4 EZ1084CT DCH TO DC JACK BD B 34 677 0603 c78 C79 R69 A 1 10UF 16V 470uF 16V 0606 Ges e PE u CPWX4 S EET a4 GND 1 0805 CPWX4 3 T E E 12VIN VDD 12 ano a ms 9 DND 1 HUF753070 1 RZ 4 Q4 MMBT3906L 2 A 0603 R72 GND 100K 45V 3 3V R73 0603 C82 9 100K 0603 100uF 25V Bieren 39061 10K POWER BOARD 12V 5V 4 Ca 2 12 4 875 Kg 3 RLZ15A 1K 10UF 16V 221 _ _3PX1 1 MAGOLD PANEL VDD SELECTOR 0603 vec _ en AUDIO PWR een RSTN 0 1U 20 GND R76 ERR _ LCD POWER 10K GND POWER ONE GND _ 0603 R114 See LL KIA7045 OS iL 0 GND GND HANNST
5. BY Richard Wang TESTING TECHNOLOGY DEPARTMENT TSSC MAY 2001 MiTAC 22 LCD MONITOR 15EX2 MAINTENANCE CONTENTS 8 9 15EX2 Production Specification sccsiseicsscscsssccccceccccccvccstecscccsccccsecescaseesccnsessccccsesvesecsucceseecces Definition and Location of Connectors amp Jumpers Location of Major Components Pin Descriptions Of Major Components eee eee eee eee e eee osten ene e oes eee eee s Assembly amp Disassembly 15 2 Block ESI UI T LT UM AT Spare Parts II re nee Exploded VLC EEN 10 15EX2 Interface board Schematics Key Switch Board Schematics Power Jack Board Schematics 18 19 26 35 37 50 54 LCD MONITOR 15EX2 MAINTENANCE 1 15EX2 TA Product Specification 1 1 SCOPE The MiTAC 15EX2 TA TFT with analog signal input is a high resolution max resolution 1024 X 768 color LCD monitor which uses 15 high contrast TFT LCD panel This monitor supplies user with following features On screen display adjustment function DPMS power saving function VESA standard co
6. 15EX2 MAINTENANCE 4 1 gmZANI Flat Panel Controller IC DATAS re DV DI IA DAC FLL Enn Rice reed SUE DCNIDA CNA Rew PLL DAC SAMA BAK ELEL TELE KTAL Esserreil FLL Bered Va ML VH Hs Y NECS SYN MSS Reserved FH Tv PAR Reserve WAN INZ SRV SAN NIT Op DATA UOS DATA 051 DATAS CLE OS Figure 1 gmZANI Pin Diagram 88 8 ER SOE Road LITTLE DESS Ss st seess see xu w lt ee ee eee ESZZ 2222 Z25 22532 e AER CHM AEX WII TE GHI AEX emZANI 160 Pin r em T PHS MOTE For all power pash Pus T Deen ER 8 From pad 126 132 S eepeesenes Sris 015 spunoe From pad TI in 140 D racnsanix cik GS piestireaon cik Eng MOTE SESA SA SS are connected in core KSE and asd SEAT are EI PH cimnerird cor VEIT SI Poa MOTE The following signals have the sane fonction dieren rares the RS Ga 120 datadheer Rum kara called DD talked 080 Pur DSDCLK im here called
7. KIT CONTAINER 15 644015150002 PACKING KIT T50EX TA 4SN ED1 A GSS 622115125002 PALLET A WOODEN 1330 1030MM 15AX 622115125003 PALLET B WOODEN 900 1030MM 15AX 643015150002 PANEL ASSY T50EX TA 4SN ED1 A GSS 634015150001 PANEL FRONT ASSY EPSON 15EX2 EE Part Number 634415120001 PANEL FRONT 15AX 634015120004 PANEL REAR ASSY 15AX 634415120002 PANEL REAR 15AX 622115125004 PARTITION A 1330 1030MM 15AX 622115125005 PARTITION B 900 1030MM 15AX 622115125001 PARTITION CABLE ADAPTER 15AX 641215150001 622200010020 622215152001 622200010035 622200030002 634415120025 PCB ASSY T50EX TA INV BD SHP EPSON PE BAG 350 240 ACCESSORY LCD MTR PE BAG FOR PANEL F R 50EX2 PE BAG LL T 155AE T 0 04MM 50RX PE FILM SKIN PACKING PRC PUSH BUTTON 15AX Part Number Description 640015120002 PWA PWA 15AX TA POWER JACK BD PF 640015150001 PWA PWA T50EX TA 4SN ED1 I F ASSY EMEN 640015150004 PWA PWA T50EX TA 4SN ED1 1 F H I 640015150005 PWA PWA T50EX TA 4SN ED1 1 F SMT 640015130003 PWA PWA T50EX TA SW BD EE 642200210018 PWR CORD 125V 7A Y GND T 6FT JP S 627107100001 RES 0 1 16W 0603 SMT 271012000301 RES 0 1 8W 5 1206 SMT 627107110031 5 10 1 16W 596 0603 SMT 627107110131 RES 100 1 16W 596 0603 5 627107110431 RES 100K 1 16W 5 0603 5 627107110331 RES 10K 1 16W 5 0603 SMT 627103413131 RES 130 1 2W 5 2010 SMT 627107115331 RES 15K 1 16W 5 0603 SMT R87 ROl
8. From LCD Panel CONN AC Adapter AC SOURCE 17 LCD MONITOR 15EX2 MAINTENANCE 3 Location Of Major Components 15EX2 Interface Board OO H H H H H H H Ul U2 U3 US U6 U7 gmZANI Flat Panel Monitor Controller IC 74F14 Hex Schmitt Trigger Inverters M52347 N A 24C21 EDID HIP6013 Switch Regulator EZ1084CT Linear Regulator U10 24LC16B Configuration Data U11 M6759 Micom 014 74HCT74 Dual D type Flip Flop 18 LCD MONITOR 15EX2 MAINTENANCE 4 Pin Description Of Major Components 41 gmZANI Flat Panel Controller IC Features gmZANI device utilizes Genesis patented third generation Advanced Image Magnification technology as well as a proven integrated ADC PLL to provide excellent image quality within a cost effective SVGA XGA LCD monitor solution As a pin compatible replacement for the gmB120 the gmZANI incorporates all of the gmB120 features plus many enhanced features including 10 bit gamma correction Adaptive Contrast Enhancement ACE filtering Sync On Green SOG and an enhanced OSD Features Fully integrated 135MHz 8 bit triple ADC PLL and pre amplifier gmZ2 scaling algorithm featuring new Adaptive Contrast Enhancement ACE On chip programmable OSD engine Integrated PLLs 10 bit programmable gamma correction Host interface with 1 or 4 data bits Pin compatible with gmB120 I
9. CPWX43 R51 Cue 120 wax PARAMETER li Fas Feo 42 EEPROM LCD MONITOR 15EX2 MAINTENANCE 7 2 No Display System Fail Or Display Abnormal Symptom The LCD no display but power and back light is good or show abnormal picture Picture abnormal 1 Make sure the PC VGA adapter is good Board level 2 Check the VGA cable is connected to PC properly Troubleshooting 3 Make sure the power adaptor amp power BD is good 4 Make sure all cable and PCB connect properly lt 7 Lb YES Check the following parts for cold solder or one of the following parts on the mother board may be defective D use an oscilloscope to check the following signal or replace the parts one at a time and test after each replacement Is Picture OK Replace following parts one at time and test after each replacement until find out which part caused the problem 1 PC to monitor cable 2 LCD module 3 15EX TA Interface Board to inverter BD cable lt gt Is Picture To find out which part is OK causing the problem Replace 15 Interface Board or go Parts Signals Jl Ul VGA R VGA G XI Y2 VGA B HFS UJI 010 HCLK 0 3 13 14 SCL SDA RI RA 02 04 R 2 7 90 7 B9 11 _ 2 7 R 2 7 B13 RPI RPIO G 2 7 O B 2 7 B39 B77 R97 H SYNC V SYNC R83 R84 LCD CLK DE INVERTER BD into board level Trouble shooting 43 Symptom When you pressed t
10. Tele ER B621 An _2_1202 100M OR3 ToooP eno ur rper or er Tee oT R6 EH o 100 0 01uF 812 220271001 30V OR 8641 nn 2 1202100 085 R2 D2 17 D mm CND DIGITAL 0 62 8651 syn 2 1202100 A leese suppux B661 2 1202100 OGT 7 75 BAV99LTI 10 ANALOG SUPPLY DECOUPLING say O G4 B671 2 1207 100M 082 DECOUPLING tri T ouf T T or 065 B691 ee 2 1202100 0034 _ 6 B701 2_1202100 _ 0641 o owe Le Le Le oer B711 2 1202100 ADO GNDA o B2 8721 2 1202100 zp O B3 B731 nn 2 120z 100M 1 Lema B741 ewen 2 1202100 _OB2 Bll me d O B5 8751 Inn 2 1202100 ToP u 2 1202100M __ 9 3 C43 GREEN CO B771 2_1202100 _ OB5 1 green 4555 33555 58 88 558 22 5585 u j 8800 85888 88 55 888 89 8888 D3 100 0 01uF m 685 89955 20 WEE onnector lt YA EH 40 Pin des 75 AV99LT 10P SE mie Es SS 1 BLUE 7 2 2 e rS Pos mer S ER D n RED PD4 65 s 5 3 b BUE CH gen SE as por SH nesenven r 5 3 E Gs X i RESERVED 259 56 PO T 2 EGE VGA B B13 poturp owrp owr 2 ZE Sa pole 4 e C BLUE DIT EUER GC AA 7 po
11. 1 2 11 COMPATIBLE TIMING CHART VS s mo r xs ox en ms 37 9 soen s s 7 44 m m o I ma 7S _ mem mm SE wax o wm LCD MONITOR 15EX2 MAINTENANCE 1 2 12 OSD ADJUSTED FUNCTION LCD MONITOR 15EX2 MAINTENANCE ___ mm CLOCK PHASE H POS V POS BRIGHTNESS COLORS COOL STD WARM USER GREEN BLUE OSD H POS OSD V POS ALL RESET Values Range 0 to 255 0 to 63 0 to 255 0 to 31 0 to 63 NO YES Default Value LCD MONITOR 15EX2 MAINTENANCE Color Temperature Definition Chromaticity of white COO 0 285 10 EE STD 02 6500 0 313 10 0 329 10 WARM 5500 0 329 10 0 343 10 Key definition Menu Select Left Decrease Right Increase and Power 5 keys Select Key Only one shot of Select Key 15 available Continuous pressing is not available lt gt Key Continuous pressing is available Key Operation Pushing Menu key the OSD window will pop out The default value will focus on the first icon Keep pushing Menu key the highlight will go to next item The sequence is DISP ADJUSTMENT menu WHITE BALANCE menu gt COLOR ADJUSTMENT menu MISC menu The different icon will come out different OSD items Using Select key can choose different item The Decrease and Increase keys will change the val
12. 2 SEKR nP ies SPKL _ 7 SPK L 7 lt AUDIO IN AUDIO_GND TDA7057AQ CPWX4 3 12 7 JP7 1UA6V NA _ C153 SP1 13 AUDIO_IN_L 2 r P1 AUDIO IN L 1 1 5 1 GND H 11 GND AUDIO IN S C154 SP2 10 EAR PHONE R AUDIO IN R 4 5 E P2 EAR PHONE R 5 7 7 2 EAR PHONE L B x 2 NC SP2 8 EAR PHONE L R125 R1261U 16V NA CPWX4 R108 GND GND 5K1 ski 10 8HEADER AUDIO_GND AUDIO GND AUDIO GND TO DC JACK BD EAR PHONE EAR PHONE R EAR PHONE L EAR PHONE L SPK R SPK SPK L SPK 1 TO SPEAKER UNIT HEADER 4 0 1 2 R14 0 goto _ AUDIO GND DRAWN DESIGNED CHEAKED APPROVED Alpha Hsu Alpha Hsu Alpha Hsu Alpha Hsu TZ EAA IR 2 BJ Title 15EX TA INTERFACE BD Bize Document Number PCB 630015130002 Rev B PCBA 640015130001 Date ot ert Bheet 5 o 5 1 SW6 SW5 SW4 SW3 sw2 SW1 4 1 4 4 1 4 4 1 4 4 1 4 4 1 4 4 1 3 2 3 2 3 2 3 2 Za 2 HOT_KEY DOWN MENU SELECT UP DW KEY_MENU EY_MENU KEY_SELECT 1 KEY_SELECT KEY_UP 2 EY_UP KEY_DOWN 3 KEY_DOWN KEY
13. 2 mA 20 mA OG3 OGI 36 PD24 out 2 mA 20 mA OG2 000 37 PD23 out 2 mA 20 mA OR7 5 38 PD22 out 2 mA 20 mA OR6 ORA 39 PD21 out 2 mA 20 mA ORS OR3 42 PD20 out 2 mA 20 mA OR4 OR2 46 PD19 out 2mA 20mA OR3 ORI 47 PD18 out 2 mA 20 mA OR2 ORO 48 PDI7 out 2 mA 20 mA EB7 5 B7 5 50 IPD16 out 2 mA 20 mA EB6 EB4 B6 B4 51 PDIS out 2mA 20mA EB5 EB3 B5 B3 52 PD14 out 2mA 20mA EB4 EB2 B4 B2 53 PD13 out 2mA 20mA EB3 EBI B3 Bl 54 PD12 out 2mA 20mA EB2 EBO B2 BO 55 PDII out 2 mA 20 mA EG7 5 G7 G5 56 PDIO out 2 mA 20 mA EG6 EG4 G6 G4 NOTE Drive current of the panel output pins are programmable 24 LCD MONITOR 15EX2 MAINTENANCE 4 Pin Description Of Major Components 41 gmZANI Flat Panel Controller IC 4 Test Pins Pin Name Drive Current Description 3 PSCAN in Enable automatic PCB assembly test When this input is pulled high the automatic PCB assembly test mode is entered An internal pull down resistor drives this input low for normal operation 155 SCAN INI in Scan input 1 used for automatic PCB assembly testing 157 SCAN 2 in Scan input 2 used for automatic PCB assembly testing 159 SCAN OU out Scan output 1 used for automatic PCB assembly testing TI 160 SCAN OU out Scan output 2 used for automatic PCB assembly testing T2 153 Reserved 154 Reserved VDD VSS for Core Circuitry H
14. 40 LCD MONITOR 15EX2 MAINTENANCE 7 1 No Power Symptom When the power switch is turned on nothing happens power indicator is not light up 15EX TA Interface Board Board level Troubleshooting Check following parts and signals PARTS SIGNAL Check following parts and signals U6 12VIN R64 5VP PARTS SIGNAL Q3 VDD_12 12VIN 5V CHOKEI POWER BD Check following parts and signals PARTS SIGNAL Q4 Q5 12VIN Check following parts and signals 012 B2 VDD 12 R72 R76 PARTS SIGNAL U7 5V R67 R70 3 3V Check following parts and signals C75 CTT C80 VDD 12 TO 5VP PARTS SIGNAL 014 RII7 VDD 12 R120 5 PARTS SIGNAL R115 08 Q6 VCC LCD R119 R77 R78 C158 Check following parts and signals 41 Analog RGB LCD MONITOR 15EX2 MAINTENANCE 7 2 No Display System Fail Or Display Abnormal B391 1202 100
15. 5 2 1 2 Remove one screw locking the cover and lift it up 0 then you can pull out the signal cable Figure 5 8 Figure 5 8 Reassembly 1 Replace the signal cable fit the cover into place and secure with one screw 2 Reassemble the LCD panel 33 LCD MONITOR 15EX2 MAINTENANCE 5 Assembly amp Disassembly 5 2 4 Base Unit Disassembly 1 Remove the screw cover on the rear side of the monitor 2 Remove four screws locking the base unit and then lift the LCD panel up see figure 5 9 Figure 5 9 Reassembly 1 Replace the base unit and secure with four screws 2 Replace the screw cover 34 LCD MONITOR 15EX2 MAINTENANCE 6 15EX2 Block Diagram 6 1 System Block diagram LCD MONITOR Analog Signals VGA Input PC AC SOURCE emm 12V DC Input 15 2 INTERFACE BOARD LCD PANEL INVERTER BD KEY SWITCH BOARD source LCD monitor power in JUN DC Input AC power Transfer to DC and provide system power 15EX2 INTERFACE BOARD Interface Board Receive PC signals transfer to LCD signals control inverter BD backlight up down SWITCH BOARD Indicate system state and Adj panel brightness LILCD Panel Display panel 35 LCD MONITOR 15EX2 MAINTENANCE 6 15EX2 Block Diagram 6 2 15EX2 Interface Board Block diagram Key Switch Board Connector Ext
16. 628822112401 TRANS 2SB1124S T PNP SMD 628827530701 TRANS HUF75307 N MOSFET TO252 SMT 288203904010 TRANS MMBT3904L NPN Tr35NS TO236AB 10 Q11 Q12 Q4 Q7628 9 288203906018 TRANS MMBT3906L PNP Tr35NS T0236AB Q5 Q6 Q8 Q9 637310302005 T SCREW B M3 L8 FLT 1 NIW 637310301001 T SCREW B M3L8 TRS 0 ZNC 373203010602 T SCREW P M3L6 PAN 0 NIW 634215130003 VESA METAL 15EX 642215130005 WIRE ASSY 1007 26 5P 50MM INV 15EX PF 642215150002 WIRE ASSY 1007 126 6P 90MM PWR 15EX2 642215130004 WIRE ASSY 1007 26 9P 400MM SW 15EX 642215150001 WIRE ASSY I F TO PANEL SHP 15EX2 634415100021 WIRE MOUNT FW 2C 3M 50VX 633200010001 WIRE PACKING FLAT PRC 631412000402 XTAL 20MHZ 30PPM 20PF HC 49 S DIP 53 GD 657110211192 serewuz 2 9 esmiemo screwmniapanenm fefe Jesersuone nem 05 6421510020 Iwer LEFT SanSar t Jun fife eser suo 1 fife nn morsum G Jaa4s15140012 RUBBER PADLRONTA SPISAIS0AX 631515100003 oer senis ifea Gausiaseeaggr D 654415100021 wre enn 26 5 6311041005 SCREWM4 LA FLI NV NYLIK sl screnwuaxtpuvnnex Dal G9 T sonon ___ G 373205010602
17. CRT composite sync input TTL CSYNC Schmitt trigger input 132 SUB DGNDA Dedicated pin for the substrate guard ring that protects the Destination DDS Must be directly connected to the analog system ground plane 133 SUB SGNDA Dedicated pin for the substrate guard ring that protects the Source DDS Must be directly connected to the analog system ground plane 23 4 Pin Description Of Major Components 41 gmZANI Flat Panel Controller 3 Panel Interface LCD MONITOR 15EX2 MAINTENANCE Pin Name VO Drive Current Description 10pF 2pxl clk 2 8 bit 6 bit 8 bit 6 bit TFT 57 PD9 out 2 mA 20 mA 5 EG3 G5 G3 62 PD8 out 2 mA 20 mA EG4 EG2 G4 G2 63 PD7 out 2 mA 20 mA EG3 EGI G3 Gl 64 PD6 out 2 mA 20 mA EG2 G2 G0 66 PD5 out 2 mA 20 mA 7 EG5 R7 R5 67 PD4 out 2 mA 20 mA ER6 4 Ro R4 68 PD3 out 2mA 20mA ERS ER3 R5 R3 69 PD2 out 2mA 20mA ER4 ER2 R4 R2 70 PD out 2 mA 20 mA ER3 ERI R3 RI 71 PDO out 2 mA 20 mA ER2 ERO R2 RO 43 PDispE out 2 mA 20 mA This output provides a panel display enable signal that is active when flat panel data is valid 74 PHS out 2 mA 20 mA This output provides the panel line clock signal 73 PVS out 2 mA 20 mA This
18. DD CR Ki Pra r amp ELDAT AB hire called DD DATAN BI AECH hene called SD DATAN e Breed SEHE TA hare called DD DATAT Beete is hera called DD DATA S TVDD hara called SYN PIR S55 is hore called SYN VES enia NOTE alem cune led Dorf doen be strappiag option Ganpled au reset enables the use of an exrernal cristal MHRS has an internal pull mp reine so exiemal raziBainr is the delani x NOTE MIFES is a stag ping agria a select a lost dana bp wild aT Four iri cs connected a pull dese bampled at resi Since MES has an interred pull ug mm tte a Luke eat bare wirkh is rise in RYSS3 ti D E PCLKB PELKA 1 DI Cast ra m w umo Heerd ru H a ESS 53553355 B SZ A5H ESS SH SEE BES HEIDEN GE GSS HLEUIEEEELEEERLEEGEEEGE lt s m E 21 Unless otherwise stated unused input pins must be tied to ground and unused output pins left open LCD MONITOR 15EX2 MAINTENANCE 4 Pin Description Of Major Components 4 1 gmZANI Flat Panel Controller IC 1 Analog to Digital Converter Analog to Digital Converter Pin Name Drive Current Description 10pF 96 ADC RVDDA Analog power for the red channel
19. Must be bypassed with 0 1 uF capacitor to pin 93 ADC RGNDA 94 RED In Negative analog input for the Red channel 95 RED In Positive analog input for the Red channel Host Interface HIF External On Screen Display Pin Name VO Drive Current Description 10pF 77 ADC VDD2 Digital power for ADC encoding logic Must be bypassed with 0 1 uF capacitor to pin 78 ADC GND2 78 ADC GND2 Digital GND for ADC encoding logic Must be directly connected to the digital system ground plane 79 ADC VDDI Digital power for ADC clocking circuit Must be bypassed with 0 1 uF capacitor to pin 80 ACD GNDI 80 ADC GNDI Digital GND for ADC clocking circuit Must be directly connected to the digital system ground plane 81 SUB GNDA Dedicated pin for substrate guard ring that protects the ADC reference system Must be directly connected to the analog system ground plane 82 ADC GNDA Analog ground for ADC analog blocks that are shared by all three channels Includes bandgap reference master biasing and full scale adjust Must be directly connected to analog system ground plane 84 ADC VDDA Analog power for ADC analog blocks that are shared by all three channels Includes bandgap reference master biasing and full scale adjust Must be bypassed with 0 1 uF capacitor to pin 82 ADC GNDA 83 Reserved For internal testing purpose on
20. T 5V TO KEY SW BD 8127 22 2 EN_LCD HDATAO P10 T2 Ag p2 0 24 E HDATA1 i Fil em AED ron EN BL SE 2 4 P12 ECI A10 P2 2 L 1 LED AMBERGEN BL 1 Bl p 1 LED GREEN C GND HCLK Adapa A 28 1 KEY MENU 15K HFS i P1 5 CEX2 A13 P2 5 28 4 KEY SELECT R88 470 AUDIO PWR lt lt 591 20 8 2 30 KEY UP LED AMBER a P1 6 CEX3 WAIT A14 P2 6 31 KEY DOWN BRI PWM RESET 107 P1 7 GEX4 A17 W A15 P2 7 ag 7 x RST PSEN 32 Reo ONA i ALE PROG 58 890 QNA 11 P3 0 RXD 18 P3 1 TxXD IRQ 14 P3 2 INTO ap7 po 7 8 P3 3 INT1 AD6 P0 6 18 ADS PO S LZ AUTO BRI DETECT V_STATE 2 AUDO PWN asm AD4 P0 4 39 AUDIO_PWMK CE 18 PS SWR AD3 P0 3 40 8v ro DEBUG PORT 22 t 20 P3 7 RD A16 AD2 P0 2 An DRAWN DESIGNED APPROVED BOY XTAL2 AD1 P0 1 48 H_POLARITY 5V gt 22 XTAL1 AD0 P0 0 a V_POLARITY ALPHA HSU ALPHA HSU ALPHA HSU ALPHA HSU AUTO BRI CTRL vss vec B33 HEADER 4 5007 29 5v 4 b B841 22P NIC EA VPP MMBT3906L B361 een SET AUTO BRI DETECT NIC AUTO BRI DETECT 3b R93 470 B35 002 100 __ AUTO BRI CTRL 2p uH ee 92 TOK K Q10 e GND M 2202 100M LED GREEN Z MMBT3904L EE 0 M6759 22uF 16V 15EX TA INTERFACE BD GND TO SENSOR BD ki ize Document Number PCB 63001
21. Trouble shooting LCD MONITOR 15EX2 MAINTENANCE 7 5 PC Can t Detect LCD Monitor Type Symptom The PC PNP Operation System Can t Detect The LCD Monitor Type VCC_FROM_PC VCC_FROM_PC RI VS B6 _ MS R5 VSYNC 1207 100 100 05 navoorri J1 B3 DDC_SCL MM VGA 120Z 100M DDC_SDA Analog RGB 47P 47P GND B4 DDC_SDA NM GND 1207 100 DDC 5V 5V DDC 5V 3 O L C163 D1 BAV70LT1 VCC FROM PC TOM 48 LCD MONITOR 15EX2 MAINTENANCE 7 5 PC Can t Detect LCD Monitor Type Symptom The PC PNP Operation System Can t Detect The LCD Monitor Type LCD Detected Abnormal Board level Troubleshooting 2 Check the VGA cable is connected to PC properly Lb 4 Make sure all cable and PCB connect properly 1 Make sure the PC VGA adapter is good Check the following parts for cold solder or one of the LAE YES following parts on the mother board may be defective use an oscilloscope to check the following signal or replace the parts one at a time and test after each replacement Parts Signals Replace PC to monitor cable J VSYNC US DDC_SCL 654 858 DDC_SDA YES C64 C66 DDC 5V B3 B4 B6 5V _ 5 Replace faulty cable R5 D5 VCC FROM B1 D1 N Replace 15EX TA Interface Board or go into board level Trouble shooting 49 LCD MONITOR 15EX2 MAINTENANCE 8 Spare Parts List 1 Part
22. amp max output current min amp max AC input voltage min amp max AC input frequency 13 LCD MONITOR 15EX2 MAINTENANCE 2 Definition amp Location Of Connectors amp Jumpers 15EX2 Interface Board J3 J4 VGA Input Cable Connector Panel VDD Selector 40 Pins To LCD Module Connector 20 Pins To LCD Module Connector JP1 To DC Jack Board Power Connector JP2 To Key Switch Board Connector 5 To Inverter Board Connector 14 LCD MONITOR 15EX2 MAINTENANCE 2 Definition amp Location Of Connectors amp Jumpers Invertor Board Inverter Board Connector CN2 CN3 CN4 CNS Inverter BD to LCD panel Connector 15 LCD MONITOR 15EX2 MAINTENANCE 2 Definition amp Location Of Connectors amp Jumpers Power Board J1 Power Adaptor BD Connector J2 Power Adaptor Connector Power Board J1 Power input commector Connector 586 JSTI Key Switch Board SW5 SW2 SW3 SW4 SW6 1 SWI 19 129 19 dep ie SWI Power Button C SW3 SWA OSD Select Button SW2 SWS Adjust Button SW6 Auto Button D1 Power Indicator Q Menu Buttons O Select Buttons lt Button Auto Button Power Indicator Q Power Button 16 LCD MONITOR 15EX2 MAINTENANCE 2 Definition amp Location Of Connectors amp Jumpers Key SW 19 19 15 19 122 19
23. external OSD controller 119 OSD Datal in Data input 1 from an external OSD controller 120 OSD Data2 in Data input 2 from an external OSD controller 121 OSD Data3 in Data input 3 from an external OSD controller 122 OSD FSW in External OSD window display enable Displays data from external OSD con troller when high 123 11 in out 8mA Multi Function Bus 11 One oftwelve multi function signals MFB 11 0 124 MFB10 in out 8mA Multi Function Bus 10 One oftwelve multi function signals MFB 11 0 102 MFB9 in out 8mA Multi Function Bus 9 One of twelve multi function signals MFB 11 0 Also used as HDATA3 in a 4 bit host interface configuration 104 MFB8 in out 8mA Multi Function Bus 8 One of twelve multi function signals MFB 11 0 Also used as HDATA2 in a 4 bit host interface configuration 105 7 in out 8mA Multi Function Bus 7 One of twelve multi function signals MFB 11 0 Also used as HDATAI in a 4 bit host interface configuration LCD MONITOR 15EX2 MAINTENANCE 4 Pin Description Of Major Components 41 gmZANI Flat Panel Controller IC 2 Host Interface HIF External On Screen Display Pin Name Drive Current Description 10 107 5 in out 8 mA Multi Function Bus 5 One of twelve multi function signals MFB 11 0 Internally pulled up When externally pulled down sampled at reset the chip uses an external cryst
24. ohm R90 from 4 7K ohm to 470K ohm gt RESET Add 012 MMBT3904L R108 from 0 ohm to 10K ohm gt Bri_ctrl circuit B74 B75 B76 B77 B78 300z 100MHz 273000130017 gt Change B21 B22 B23 B24 B68 B25 B26 B27 from 120z 100MHz to 300z 100MHz gt EMI Change U9 from DIP8 to 508 gt EE Del R109 0 ohm Change 010 pinl5 SOFT and pinl6 AUTO BRI CTRL F W request LED GREEN connect to LED GERRN error R123 0 ohm gt Bypass 10 Change 09 010 from MM3904L to MMBT3906L gt Decrease power lose 11 Del R96 R99 0 ohm gt No need 12 R97 R98 0 ohm to NA gt No need JoOYUr i UN P OUTPUT ROO gt RO1 Add 013 MMBT3904L R121 4 7k ohm R120 5 6K ohm gt Pwm driver not enough Change R105 from 4 53K ohm to ohm gt modify integrator volue Mirror JP6 and change pin2 and pin3 function gt same as 1510 Add B79 300z 100MHz gt Add C89 33P gt Stable function Change R103 from 22 ohm to 4 99 ohm 1 and C91 from 22 to 10 gt Add C100 100uF 25V gt Material the same Change R107 from 15K ohm to 4 7K ohm and R106 from 470 ohm to ohm gt Function Stable JoU WNE DRAWN DESIGNED CHEAKED APPROVED ALPHA HSU ALPHA HSU ALPHA HSU ALPHA HSU Title 15AX2 INTERFACE BD Size Document Number PCB 630015120101 B PCBA 640
25. output provides the frame start signal 44 2 mA 20 mA This output is used to drive the flat panel shift clock 45 PCLKB 2 mA 20 mA Same as PCLKA above The polarity and the phase of this signal are independently programmable 75 Pbias out 8 mA This output is used to turn on off the panel bias power or controls back light 76 Ppwr out 8mA This output is used to control the power to a flat panel Pin Name Drive Current Description 10pF 2 2 1pxl clk 8 bit 6 bit 8 bit 6 bit TFT 6 PD47 out 2 mA 20 mA OBI 7 PD46 out 2 mA 20 mA OBO 9 IPD45 out 2 mA 20 mA OGI 10 PD44 out 2 mA 20 mA OG0 13 PD43 out 2 mA 20 mA ORI 14 PD42 out 2 mA 20 mA ORO 15 PD41 out 2 mA 20 mA EBI Bl 16 PD40 out 2 mA 20 mA EBO BO 17 PD39 out 2 mA 20 mA EGI Gl 19 PD38 out 2mA 20mA EGO GO 20 PD37 out 2 mA 20 mA ERI RI 22 PD36 out 2 mA 20 mA ERO RO 23 PD35 out 2 mA 20 mA OB7 OBS 24 PD34 out 2 mA 20 mA OB6 OB4 25 PD33 out 2mA 20mA OBS OB3 26 PD32 out 2mA 20mA OB4 OB2 27 out 2 20 OB3 1 28 PD30 out 2mA 20mA OB2 OBO 29 PD29 out 2 mA 20 mA OG7 005 31 PD28 out 2 mA 20 mA OG6 OG4 32 PD27 out 2 mA 20 mA 005 063 34 PD26 out 2 mA 20 mA 004 062 35 PD25 out
26. 002 288100099001 628810414801 288100015001 288100051001 628810003401 627260310751 627260210651 272602226501 Description Location s CARTON EPSON 15EX2 CFM EPSON LCD LQ150X1DG51 15 TFT CHOKE COIL 5UH 4A 4 5TS 10 8 5MM CLEANNER APEARANCE PRC CON DC POWER JACK MA D2 0 CON HDR MA 10P 2 1 25MM ST SMT HRS CON HDR MA 20P 2 1 25MM ST SMT HRS CON HDR MA 3P 1 1 ST PL5 842 GOLD 9 CON HDR MA 5P 1 2MM ST CON HDR MA 6P 1 2MM ST CON HDR MA 9P 1 2MM ST CON HDR SHROUD MA 12P 1 2MM R A CON HDR SHROUD MA 6P 1 2MM R A CON HDR SHROUD MA 9P 1 2MM R A CONTROL COVER EPSON 15EX2 DIODE BAV70LT 1 70V 225MW SOT 23 DIODE BAV99 70V 450MA SOT 23 DIODE LLA148 MELF SMT DIODE RLZ15A ZENER 13 89V 5 SMT DIODE RLZ5 1B ZENER 5 1V 5 SMT DIODE SR34 VRRMAOV 3A DO 214AA SMT EC 100U 25V 20 D8 6 5 85 C SMT 145 149 82 100 16V 20 D4 5 3 85 C SMT C123 C155 C4 C52 C77 Q EC 22U 16V 5 5 5 40 85 5 C1 C19 C21 C31 C5 C8 50 LCD MONITOR 15EX2 MAINTENANCE 8 Spare Parts List 2 Part Number wa 522 aed Part Number Description Location s 286306013001 IC HIP6013 BUCK PWM CTLR SOIC 14P 628630704201 IC KIA7042F 4 2V DETECTOR SOT 89 628410001001 IC MXIOFMAXDQC 8BIT MICRO CTLR PLCC44 628130071401 IC NC7S14 HS INVERTER 507 23 5 628630110001 IC TPS1100 P MOSFET PWM CTRL SO 8P 627300990003 INDUCTOR 47uH 20 CDRH127 SUMIDA 634415150004 KEY
27. 015120101 p Date 20 05 00 Bheet 1 of 5 GNDA DDC45V 45V 483V DDC 5V 9 33V o Bi 2 2202 100M 9 45V DVDDA 1 2202 100MDC_SCL 1 vv 2202100 1 2 3 85 ESCH 4 Di 1 Es ZZOZ 100M VS VGA 10K BAV70LT1 Lena Dur up 2202 100 7 vv 2202100 HS VGA 1 B8 2202 1001 VGA ea vee amp GND SVDDA AC amp VGA G ADC GNDA 10uF 16V GNDA B9 Es 12 RUN EE 15 VGA T Y 1 engl 22uFAEVo t
28. 0K ps 1 2 SHORT FOR 127 ADAPTOR S00 00M R110 POWER ONS 1 2 B 2sc1623 1 2 SHORT FOR 12V ADAPTOR 2 3 SHORT OR OPEN FOR 12V 5V I P 47 0603 R111 2 3 SHORT OR OPEN FOR 12V 5V I P 6808 p 12VIN ER CONN GND GND 2 R62 PH 6 CHOKE ai 2 94K COM_CHOKE_4A 1 14 09 C68 1 vec Ha 4 5V gt 3 3V 1 2 2X P 2 C69 SS MLL34B 3 330uF 16V O tuF 7 41 comp X 4 cm Kai 3 3V 4 1 SR 2 R63 6 Bosch 9 Our 11 4 7UH BA 07 402K T cz 7 8 top 5V 3 2 0805 33 PHASE _ _ 125 q T VN VOUTO m Fun 1 760 E 1 vouri H S 0 0105 R67 GND 100 E al 0603 C78 C79 19 _ 100 16 470UF 16V TL D R70 0805 3 GND 0805 165 16V lt al a3 REC 16V 0603 HUF75307I IBAN en S al ii 2 o 0603 39 LCD MONITOR 15EX2 MAINTENANCE 7 1 No Power Symptom When the power switch is turned on nothing happens power indicator is not light up Is the LCD monitor connected to power AC adaptor Connect AC adaptor Replace 15EX TA Interface Board Try another know good Internal POWER BD Replace the Board level faulty AC Adaptor Troubleshooting Replace faulty internal POWER BD Next Page To be continued
29. 271071165011 RES 165 1 16W 1 0603 SMT 271002102301 RES 1K 1 10W 596 0805 5 627107110231 RES 1K 1 16W 5 0603 SMT R103 R112 R128 R75 627107110531 RES 1M 1 16W 5 0603 SMT 627107129411 RES 2 94K 1 16W 1 0603 SMT 271071221302 RES 22 1 16W 5 0603 SMT 627107130251 RES 3K 1 16W 5 0603 SMT Ro 520 627107147231 RES 4 7K 1 16W 5 0603 SMT 627100249911 RES 4 99K 1 8W 1 0805 SMT 627100240221 RES 40 2K 1 8W 1 0805 5 52 LCD MONITOR 15EX2 MAINTENANCE 8 Spare Parts List 4 Part Number 971071471302 271071474301 627107147331 271071499011 271071562301 271002511301 271071750302 271611330301 271611472301 634515120001 634515140001 634515140002 656511515001 637110201003 637110301039 637110301037 371103010808 637110401005 637110401011 637110401010 637110401012 634215150002 634415120007 633700150006 RES 47K 1 16W 5 0603 SMT RES 499 1 16W 1 0603 SMT RES 5 6K 1 16W 5 0603 SMT RES 510 1 10W 5 0805 SMT RES 75 1 16W 5 0603 SMT RUBBER PAD 15AX RUBBER PAD FRONT L SP 15A1 50AX Runen aD mon as Eur s Fame E SW TACTILE 12V 50MA 1P H4 3MM SCREW M3L8 FLNG PAN NIW NLK SCREW M4 L8 FLT ZNW NYLOK Part Number Description Location s 225000020001 TAPE 1 2 LIMPID 20YARD REEL PRC 622200000007 04 CG COMMON FOR HINGE PLATE MEI
30. 47K Q11 c1487 C149 1 2 gt MBT3904L 100uF 25V T Inverter HOT KEY B28 CPWX83 B79 300z 100M 0 NM gk E Connector C89 C90 91 C92 33 33P 33 Key Switch e e Board Connector GND 20MHz C96 22 24LC16B ND PARAMETER EEPROM LCD MONITOR 15EX2 MAINTENANCE 7 4 No Backlight Symptom The LCD Display is good but too dim or the backlight can t be adjusted LCD No Backlight Make sure that AC power cord and adapter is connected to B oard level Troubleshooting outlet properly Check the power switch is on Check the VGA cable is connected to PC properly Lb Make sure the power BD is good Make sure all cable and PCB connect properly Check the following parts for cold solder or one of the following parts on the mother board may be defective use an oscilloscope to check the following signal or replace the parts one at a time and test after each replacement Parts Signals 1 5 12VIN B78 B79 5V U1 U11 BRI PWM C145 C146 EN BL 2 Inverter BD 3 15EX TA Interface Board to inverter BD cable C148 C149 SCL 011 012 SDA m YES R99 R101 acklight OK R103 R104 To find out which part is causing the problem 2 Replace 15 Interface Board Replace following parts one at a time and test after each replacement until find out which part caused the problem 1 LCD module INVERTER BD go into board level
31. 5130002 Rev GND 5 PCBA 640015130001 gy Date 01712701 Sheet 3 o 5 5 4 3 2 1 TO PANEL 10021010102210 0104210 10 1140118011401 1801140117 GND AB3RBIPBIRBIRBIRBIRBIRBIRBIRBIRBIRBIRBIRBIRBIRBIRB3RB3P B38 Sf V2 7 1202 100M QVCSYNG B391 2 1202 100 7 ER 8401 2 1202 100 Rt 100 a B414 2 1202 100 1 2 ERU B421 ee 2 1202100 I lt B434 2 1202 100M I ER4 GND B44 1 2 1202 100 ERS B46 EG BAB ear TRE TOI I EGO 1 2 DE S
32. AR HSD150MX42 3 3 gt 1 2 SHORT OVER PROTECTION VDD 12 VCC LCD 8116 U14A 5V 105 7ANHCT74 E 9 l R117 Gni tt ent Gak fay Gadi RR R11 510R 0805 10K 25 g g 5VP R77 us gt F R 10K 11 source 8 A SOFT PWR lei 2 2 DRAIN2 Z als C157 ls zl i sounces 8 1 E158 014 119 GATE DRAIN 156 00 al R120 SN 0603 TPS1100D 100P Uy 47K 0603 1 Ee ano RESET i N 45V ACTIVE POWER SWITCH ET GND 5V T Q7 R80 14 15 11 RP12 RP13 us 470 013 R81 Weg Zeg 5 KEY WE B241 3002100 KEY_MENU Lang OMA an m R83 R84 u10 Out 47K 4 4JK 4 47K 4 ee 1 Be es en 2 KEY_SELECT 3 Se 10K 8 KEY DOWNE 1 B271 2 002100 3 KEY_UP gt gt RESET 2 HOT KEY T B28 28002 100 44 SCL 6 WP Al 3 1 5 KEY_DOWN ses l eae SCK 2 SOFT PWRF B291 2800z 100M Ares 1 5 sr vss 4 LED AMBER B301 2 0027100 96 HOT 2 C95 Q100KNA Rs PTS LED GREEN B311 2800z10M 7 SOFT_PWR GND 832 8002700 98 4 7K 0603 S KIA7042 X PARAMETER PH 9 LED AMBER lt d Nod id col EEPROM GND LED_GREEN GND Nu we E
33. FRAME EPSON 15EX2 624200010140 LABEL 5 20 BLANK COMMON 242600000372 LABEL 8 3 5MM 242690500078 LABEL BAR CODE 32 16MM MD4 242690500078 LABEL BAR CODE 32 16MM MD4 624215150002 LABEL BAR CODE EPSON 15EX2 648115150001 F W ASSY 2421 DDC SO8 15EX2 SHP EPSON 624200010020 LABEL BAR CODE M1420 COMMON PF 634515100003 GASKET 10 6 5 80MM 1535D 15VX 634315130002 HEATSINK B ZN1 15EX 634415120011 HINGE COVER 15AX 242010400004 LABEL BAREBONE MENHIR 242600000379 LABEL BLANK 14 14MM 624215150004 LABEL DISK EPSON 50EX2 624215150001 LABEL RATING EPSON 15EX2 TIN 624215150003 LABEL S N EPSON 15EX2 50 634215150016 LCD BRACKET L SHARP 15EX2 D 634215150015 LCD BRACKET R SHARP 15EX2 634615120002 LED HOLDER S W BD LED 5 3 50AX e 633400010307 LED ROUND D5MM H8 6MM P2 54 GRN YEL 634415150017 LENS EPSON 15EX2 624315150001 Gasser Duri pince covers 326301084004 IC EZ1084CT VOL REG 5A T0220 SEMTEC J7 628450000101 IC GMZAN1 XGA SCALER PQFP 160P Ul MANUAL JP EPSON 15EX2 LCD MONITOR 15EX2 MAINTENANCE 8 Spare Parts List 3 Description 634215140020 METAL 1 LEFT 15A1 SHARP 634215140021 METAL 1 RIGHT 15A1 SHARP 634215140024 METAL 3 LEFT 15A1 SHARP 634215140025 METAL 3 RIGHT 15A1 SHARP 633100910201 MINI JUMP 2P 1 2 54MM H 6MM OPEN 631445000401 OSC 50MHZ 50PPM TTL 162 50000 1011 644015120201
34. H BOARD 12V Backlight Voltage INVERTER BD 38 LCD MONITOR 15EX2 MAINTENANCE 7 1 No Power Symptom When the power switch is turned on nothing happens power indicator is not light up POWER BOARD 12V TO 5V POW 12v 12v GND GND 5v 5v TO DC JACK 45VP vec E R112 r AUDIO RSTN 470 0603 POWER_ON T R115 R113 R114 un _12 KIA7045 NG 9 04 MMBT3906L 0603 E GND R72 wee VDD_12 U14 7 100K R73 0603 _ Vun 74AHCT74 100K FR T4AHCT74 0603 Rm E JP2 Rit 17 510R 0805 a x CPWX8 3 Power BTN un ot E A 10K 0608 S iles 012 17 6 SOFT_PWR 3 R75 GND 9 ap Ve wd 014 R119 We K sl u 0603 156 E ES 100 RLZ5 1 NC ge R120 0603 100P 47K GND R76 N si lt 10K Key Switch BD a 19K GND GND ein POWER SWITCH OVER VOTAGE ECTION 12V 5V 109 e 1
35. NC T I kas Pr BLUE PD Ce RPS 4 33 G4 ES _ I 2 RESERVED PD9 E EM 05 ij e et gt RESERVED PD10 e G6 06 E ERVED len PDig RP4 5 4 38 B2 E 74F14 74F14 60 53 PD13 6 3 B3 z 10 Qu 12 xn 2013 PD14 7 2 B4 ES 5014 5014 2 83 RESERVED 52 PAE i R m E B4 X330 ae 16 RP5 5 4 33 B6 ES 99 1 oo hoo 00 EE RESERVED pore 52 PD17 7 EES gt x 35 RESERVED PD17 48 SANS 7 4 gt GRZ x 145 RESERVED AZ BEN Re Ons U2E U2D RESERVED PD19 R3 E 11 i E RESERVED BD20 FE s 155 E Sc on 29 Do ABE END x58 RESERVED 1 L Tc e SE O R5 PD22 R6 ih 150 HSYNC CS PD23 37 PD23 8 1 R7 O R7 ZE 148 VSVNG 2023 736 RPT 4 33 5 62 onr 8014 5014 PD25 35 5 2 0 63 45V 141 34 PD26 7 2 0 64 1 PD26 32 x OS 0 64 R19 100 C48 weng ee SEN D BER 4 83 0G 0 95 GIN 2 1 A 3 3 B83 2202 100 x 153 29 29 3 0G7 x de R20 10 154 STI TM PD29 58 Gren 2 07 a R7 NC as VDD OUT STI_TM2 PD30 Gen 2 O B2 D I el RP9 1 4 cag EE Post 25 PD32 RPi0 5 4 38 OB SES 1 2 HIN 22 gt gt V_STATE Dur ED GND 2159 SCAN 2 PD32 55 PD33 6 3 9 85 B4 deg Ag SCAN OUT PD33 38 SE 3 B5 R24 100 050 4 D I 4
36. Number 644204590003 634415120008 634415120009 634415120122 634215140004 634015130003 634415120023 642015150001 622115015001 221600050077 622115065006 642215130051 627207510341 627207310471 627207510231 272005102401 272075101701 627207510031 272075150301 272003105701 627207522031 627207533031 631202839477 627207547031 Description Location s AC ADPT ASSY 36W 12V 3A API 208 98010 EE ARM FRONT 15AX ARM REAR 15AX EE BASE FRONT 15AX3 BASE METAL 15A1 SHARP EE BASE REAR ASSY MPT 15EX2 BASE REAR 15AX EE BASE ARM ASSY T50EX TA 4SN ED1 A GSJ EE BINDER L TYPE 4 LAYER W55 H55 L1950 BINDER L TYPE W55 W55 L1130MM BINDER L TYPE W55 W55 L750MM LMI5CX CABLE ASSY SIGNAL D15 PHR12 SR 15EX EE CAP 01U 50V 10 0603 X7R SMT C42 C43 C44 C45 C46 C4 CAP 1U 25V 80 2096 0603 Y5V C10 C11 C12 C125 C126 C18 CAP 1000P 50V 5 0603 NPO SMT 1000 50 10 0805 7 CAP 100P 50V 10 0603 NPO SMT CAP 10P 50V 5 0603 NPO SMT CAP 15P CR 50V 5 0603 NPO SMT CAP 1U CR 25V 80 20 0805 Y5V CAP 22P 50V 5 0603 NPO CAP 33P 50V 5 0603 NPO SMT CAP 470U M 16V ALU 105 C D10 12 5 KY 47 50V 5 0603 NPO SMT Part Number 622115152001 641300020059 627300500001 361200001015 633100850009 629100012001 629100014001 331030003007 633100110034 633100110035 633100110038 633100121201 633100120601 633100120901 634415150003 288100701
37. a cane _____ 1 15120002 PANEL wwen Dol esezrsrzoos io er wan fife esezrsrscon METAL ea 215120016 Len mers weise le CD 215150015 160 1 ea Djesemioons Die Deseo Sofea 634415150004 KEY SEX EIE esearsrsaons coron eal CO ssenmwcom rex oe mn em sro Revas 15 2 INTERFACE BD DRAWING DESCRIPTION SHEET DESCRIPTION 2 GMZAN1 ROO gt RO1 Connect GND to ADC GND error C47 amp C49 22 and Y1 50MHz gt function Bug Add R21 33 ohm C44 33P X1 50Mhz Change B3 B4 B6 B7 from 0 ohm to 120z 100Mhz gt EMI Del R38 R39 R42 R43 R45 33 gt B69 B70 B71 B72 B73 120z 100MHz gt Change C16 C28 C35 from 10 to 15 gt Add C17 C29 C36 15 gt C149 1000 gt 10 B65 B66 B67 from 2202 100MHz to 0 ohm 1206 gt 11 R25 R40 from 510 ohm to 100 ohm gt function Bug 12 Add R122 0 ohm gt EMI 13 Change 05 from DIP to SO8 gt Material issue 14 Del R31 R32 R36 R37 R53 R54 R55 0 ohm gt No need LUN HE POWER MCU 0 gt 1 Change C83 from 22uF 25V to 10uF 16V R89 from 220K ohm to 47K
38. al resonator across pins 141 and 142 instead of an oscillator 109 MFB4 in out 8mA Multi Function Bus 4 One of twelve multi function signals MFB 11 0 110 MFB3 in out 8 mA Multi Function Bus 3 One of twelve multi function signals MFB 11 0 111 MFB2 in out 8 mA Multi Function Bus 2 One of twelve multi function signals MFB 11 0 112 in out 8 mA Multi Function Bus 1 One of twelve multi function signals MFB 11 0 113 MFBO in out 8 mA Multi Function Bus 0 One of twelve multi function signals MFB 11 0 Clock Recovery Time Base Conversion Pin Name IO Drive Current 10pF Description 125 DVDD Digital power for Destination DDS direct digital synthesizer Must be bypassed with a 0 1 uF capacitor to digital ground plane 127 DAC DGNDA Analog ground for Destination DDS DAC Must be directly connected to the analog system ground plane 128 DAC DVDDA Analog power for Destination DDS DAC Must be bypassed with a 0 1 uF capacitor to pin 127 DAC DGNDA 129 PLL DVDDA Analog power for the Destination DDS PLL Must be bypassed with a 0 1 uF capacitor to pin 131 DGNDA 130 Reserved For testing purposes only Do not connect 131 PLL DGNDA Analog ground for the Destination DDS PLL Must be directly connected to the analog system ground plane Pin Name Drive Current Description Q 10
39. e 1 2 1202 100M I 1 12027100M EE B481 2 1202 100 2 8491 oe 2 1202 100 EGS 3P B504 A 2 1202 100 SS B511 2 1202 100M I EG5 B53 1202 100 B524 V 2 1202 100 EBO H SYNC 1 GND B544 120z 100M 1 HLSYNO 2 EEN 2 4 px YN 2 120z 100M 1 2 0120 Er 561 oe 2 1202 100M 38 B6 8571 2 1202 100 1 VGC LCD Se B581 mm 2 1202 100 5 ope SCH 2 1202 100 ORE 1 2 1202 100 1 j Set B614 2 1202 100 ik SPRA 95 0 Kan 8621 oe 2 1202 100 ORS A HYUNDAI Se 8631 2 1202 100 s CLK NA 44 SC 8641 oe 2 1202 100 ORS ci2 Jl 65 8651 2 1202 100 OGO 10P B661 2 120z 100M G3 III 541 B674 1202100 OG2 E R98 CE B694 jv 2 1202 100M m 003 HANNSTAR Se B701 Vv 2 120z 100M 064 ME 100 a B714 2 120z 100M 5 GND d B721 2 1202100 St OBO x B734 2 1202 100M 1 CPWX43 R51 T 1 eis on 8741 2 120z 100M OB2 120 _ _ SS B5 8751 rn 2 1202 100 OB3 1 2W AX C125 C126 GND Kar B764 2 1202 100 4 HIE 0 1uF 9 85 8771 2 120z 100M 5 4 215 GND GND 01210124012213 013101321340134134213401370134013421400141014201430144 12VIN T T eg TO INVERTER 5V T B78 5002 100 L
40. een 2 _ ABSRABSRBSRBSRBSRB3RABSRBSRABSRBSRB3RBSRABSRG3RB3RBSRBSRB3P 9 e etde PH 5P Ol45 R99 100uF 25V 12 m 3K CPWX8 3 d GND Ga 5 BRT_RANGE GND GND GND nom ze 5 R ON OFF RIRIS 4 7K Q11 DIEN C149 1 2 s d l BRI_PWM 2 MBT3904L A 1K 879 300z 100M MTG1 MTG2 MTG3 MTG4 103 2 008 0 103 2 008 0 103 2 008 0 103 2 008 12 12 12 12 11 11 14 11 DRAWN DESIGNED CHEAKED APPROVED 10 10 10 10 ALPHA HSU ALPHA HSU ALPHA HSU ALPHA HSU R104 GND EN BL 7 912 NI FD1 FD2 FD3 FD4 FD5 FD6 FD7 FD8 SIK MMBT3904L 22 E f Al FIDUCIAL MARK FIDUCIAL MARK FIDUCIAL MARK FIDUCIAL MARK FIDUCIAL MARK FIDUCIAL MARK FIDUCIAL MARK FIDUCIAL MARK e 15 i El 52 24 i GND Bize Document Number PCB 630015130002 2 2 E E E E 2 2 P PCBA 640015130001 Date 01 12 01 Bheet 4 of 5 1 4 D 12VIN 12 12 500Z 100M oy 015 1 SOURCE DRAINS R61 Nc 2 SOURCE2 DRAIN2 3 SOURCES 154 A9 GATE DRAIN AUDIO gt r TPS1100D 015 R15 5V 10K a R105 1K R106 Q13 10K AUDIO_PWM 2 MMBT3904L 1507 151 r lt 100uF 25V CPWX8 3 AUDIO GND SPK R
41. ernal VGA Analog RGB To DC Jack Board Connector VGA 5 KEY_MENU KEY_SELECT KEY_UP HOT_KEY SOFT_PWR LED_AMBER LED_GREEN ESD Protective VGA B KEY DOWN RED GREEN BLUE vs Circuit HsyNC VSYNC IN M52347 V_IN U2 74F14 12VIN U6 HIP6013 U11 SCL 010 6759 Sm 241 16 Micro CTRL AN 12VIN es BRI PWM EN J3 ER 0 5 EG 0 5 R 2 7 EB 0 5 Ul G 2 7 gmZANI E B 2 7 OR 0 5 R2 OG 0 5 Flat Panel o G 2 7 OB 0 5 O B 2 7 14 Monitor LCD CLK Controller IC U7 EZ1084CT To Inverter Connector To Panel Connector 40 Pins To Panel Connector 20 Pins 36 LCD MONITOR 15EX2 MAINTENANCE 7 Troubleshooting 7 1 No Power 7 2 No Display System Fail Or Display Abnormal 7 3 OSD Function Or Display Abnormal 7 4 No Back Light 7 5 PC Can t Detect LCD Monitor Type 7 6 LCD Monitor Audio Function Abnormal LCD MONITOR 15EX2 MAINTENANCE 7 1 No Power Symptom When the power switch is turned on nothing happens power indicator is not light up AC SOURCE LCD MONITOR POWER BD 15 2 gt Y SWITC
42. he LCD OSD On Screen Display button but no OSD display or the function can not be adjusted LCD MONITOR 15EX2 MAINTENANCE J1 External VGA Analog RGB JP2 KEY 1 25 KEY_SELECT 4 26 KEY_UP NM B27 KEY DOWN i B28 HOT KEY NM C89 C90 C91 C92 33P 33P 33P 33P Key Switch Board L Connector 7 U11 M6759 HFS 7 3 OSD Function Or Display Abnormal HCLK HDAT A 0 3 U1 gmZANI EN BLZ 12VIN R99 CPWX8 3 J3 J4 B78 500z 100M 1 2 C146 To Panel Connector 40 Pins To Panel Connector 20 Pins TO INVERTER 5 C97 mp R53 Y2 20MHz C96 22 C145 AR 100uF 25V O 1uF 1 127 de E GND 5 RANGE GND 4 GND P 5 6K ON OFF P A4 7K Q11 Ci4o IR 1 2 GND 717 100 25 WX8 3 79 3002 100 c 5 JP5 To Inverter Connector 44 LCD MONITOR 15EX2 MAINTENANCE 7 3 OSD Function Or Display Abnormal Symptom When you pressed the LCD OSD On Screen Display button but no OSD display or the function can not be adjusted OSD is abnormal A Jb Board level Troublesho
43. is 33 PDTS g 1 e 0 01uF fioo foo pa Pots ag PD WV R4 D4 4 3 155 RESERVED Pore 7 ORE A 1 152 RESERVED pois 46 019 ORF 75 BAV99LTI T jop Tenoa KI pesenan U DEE 5 8 poe 9 88 TANG 2 1 148 VSYNC PD23 35 Poss RF HE PER t H leese 7 2 2 52 EE KIE XT nesenveD ge 0 fA 153 gt Bee RPS 5 4 33 O Gb Flat Panel Monitor GER 1 M Seat Controller IC 88 ZS Scan outa ontroller RE HAAG E E AE SS GND 115 pose L Eee GE GSD DATAO poss 175 mop BER To Panel HFS L X x Poet HOX C HCLK cus es H onnector hA 6 BER 5 99 S 0 eee WPins POLKA Ce e uico cik I 1 2 20 U11 45V vreo EE Sei HT 1 V am xr 9 Bui 2 eu arca Ness ENS ra 8181 ES 107 lt SEI ae Seno Dog 7 LCD_CLK R 0 Bag SSES Ee 1 2 M6759 1 m EM pol 0 Vie 888 u 55585 558 100 eg 1 555 2222 5528 2 hok 7 0 288 5285 88588 22 2 2222 Fr sl Teen Sa 6 WP 888 8588 5292 sss 20100009 BOUT Sa scx 3 288 8488 8 28 388 02005 5002 100M a vss Eed DEE E E SM lc 241 16
44. ly Do not connect 85 ADC BGNDA Analog ground for the blue channel Must be directly connected to the analog system ground plane 88 ADC BVDDA Analog power for the blue channel Must be bypassed with 0 1 uF capacitor to pin 85 BGNDA 86 BLUE In Negative analog input for the Blue channel 87 BLUE In Positive analog input for the Blue channel 89 ADC GGNDA Analog ground for the green channel Must be directly connected to the analog system ground plane 92 ADC_GVDDA Analog power for the green channe Must be bypassed with 0 1 uF capacitor to pin 89 ADC GGNDA 90 In Negative analog input for the Green channel 91 In Positive analog input for the Green channel 93 ADC RGNDA Analog ground for the red channel Must be directly connected to the analog system ground plane Pin Name I O Drive Current Description 10pF 98 HFS In Host Frame Sync Frames the packet on the serial channel 103 HCLK In Clock signal input for the 3 wire serial communication 99 HDATA in out 4mA Data signal for the 3 wire serial communication 100 RESETn In Resets the gmZANI chip to a known state when low 101 IRQ out 4mA Interrupt request output 115 OSD HREF out 4mA HSYNC output for an external OSD controller chip 116 OSD VREF out 4mA VSYNC output for an external OSD controller chip 117 OSD CIk out 8 mA Clock output for an external OSD controller chip 118 OSD Data0 in Data input 0 from an
45. mpatible ME design Swivel function of display panel Plug amp Play DDC1 2B function LCD MONITOR 15EX2 MAINTENANCE 1 2 MAIN CHARACTERISTICS 1 2 1 LCD PANEL The detailed spec please refer to Sharp LD 11904D document LCD panel 15 color TFT LCD Model no Sharp LQ150X1DG51 DISPLAY SE ________ ___ EECH 1024 H X BB V Be ommo fe PIXEL CONFIGURATION wm EE ECH a coc xw 1 Eme ume Res Tr 10 PONSE TIME Tess LCD MONITOR 15EX2 MAINTENANCE 1 2 2 SIGNAL INPUT CABLE High density 15 pins D type male connector cable 1 2 3 VIDEO SIGNAL Max 80 MHz bandwidth Input video voltage range 0 6 0 95 Vp p typ 0 7 Vp p Impedance 75 Q 5 50 pF max 1 2 4 SCAN FREQUENCY Horizontal frequency 24 8 60 kHz Vertical frequency 56 75 Hz Polarity positive or negative 3V 5V Input impedance 470 Q min 1000 pF max 1 2 5 SYNC PROCESS Separate SYNC is acceptable 1 2 6 SWIVEL Up Down 257 3 1 2 7 PLUG amp PLAY DDC1 DDC2B 1 2 8 EXTERNAL CONTROLLER amp OUTLET LCD control key MENU SELECT POWER LCD MONITOR 15EX2 MAINTENANCE 1 2 9 AC INPUT POWER Max 264 Vac 50 Hz Min 90 Vac 60 Hz Normal 100 240 Vac 60 50 Hz 1 2 10 POWER SAVING FUNCTION amp INDICATOR COMPLY WITH VESA DPMS LCD MONITOR 15EX2 MAINTENANCE
46. ntegrated Analog Front End Integrated 8 bit triple ADC Up to 135MHz sampling rates No additional components needed color depths up to 24 bits pixel are supported High Quality Advanced Scaling Fully programmable zoom Independent horizontal vertical zoom Enhanced and adaptive scaling algorithm for optimal image quality Recovery Mode Native Mode 19 LCD MONITOR 15EX2 MAINTENANCE Input Format Analog RGB up to XGA 85Hz Support for Sync On Green SOG Support for composite sync modes Output Format Support for 8 or 6 bit panels with high quality dithering One or two pixel output format Built In High Speed Clock Generator Fully programmable timing parameters On chip PLLs generate clocks for the on chip ADC and pixel clock from a single reference oscillator Auto Configuration Auto Detection Phase and image positioning Input format detection Operating Modes Bypass mode with no filtering Multiple zoom modes with filtering with adaptive ACE filtering Integrated On Screen Display On chip character RAM and ROM for better customization External OSD supported for greater flexibility Supports both landscape and portrait fonts Many other font capabilities including blinking overlay and transparency Package Cooperate with SiS Video Bridge to Support Applications Multi synchronous LCD monitors Other fixed resolution pixelated display devices 20 LCD
47. ost Interface and Panel Memory Interface Pins Description 65 40 33 12 PVDD4 PVDDI for panel memory interface Connect to 3 3V Must be the same voltage as the CVDD s 149 108 58 21 11 SRVDD2 1 CVDD4 CVDD2 1 for core circuitry Connect to 3 3V Must be the same voltage as the PVDD s 158 151 140 126 114 72 61 49 41 30 Digital grounds for core circuitry and panel memory 18 8 1 interface LCD 15EX2 MAINTENANCE 5 Assembly amp Disassembly 5 1 System View 5 1 1 Front View Menu Button Select Button Buttons Power Indicator Power Button 26 LCD MONITOR 15EX2 5 Assembly amp Disassembly 5 1 2 Rear View VESA Mounting Holes Power Connector Signal Cable Latch MAINTENANCE 27 LCD MONITOR 15EX2 MAINTENANCE 5 Assembly amp Disassembly 5 2 System Disassembly The section discusses at length each major component for disassembly reassembly and show corresponding illustrations CAUTION Before you start to install replace these modules 1 Turn off the power button on the rear panel of the monitor 2 Disconnect the power cord from the electrical outlet and then from the monitor NOTE During disassembly 1 Label each cable as you disconnect it noting its position and routing 2 Keep all the screws 28 LCD MONITOR 15EX2 MAINTENANCE 5 Assembly amp Disassembly 5 2 1 LCD Panel Disassembly 1 Rem
48. oting 1 Make sure that Key SW BD and 15EX TA Interface Board is connected properly e 2 Check the Key SW BD and Interface Board s cable is good Check the following parts for cold solder or one of the following parts on the mother board may be defective use an oscilloscope to check the following signal or replace the parts one at a time OSD function To find out which part is and test after each replacement OK causing the problem NO IL Parts Signals J1 JP2 KEN MENU Try another known good Key SW BD RP12 KEY_SELECT Ul KEY UP KEY DOWN Y2 HOT KEY OSD function Replace Rey m er am Bane HFS OK To find out which part is C89 C92 HCLK causing the problem HDATA 0 3 Key SW BD SCL SDA BRI PWM Replace 15EX TA Interface BD or go into board level Trouble shooting 45 LCD MONITOR 15EX2 MAINTENANCE 7 4 No Back Light Symptom The LCD Display is good but too dim or the backlight can t be adjusted Jl To Panel External C 0 Pins Analog VGA gy ins RGB VGA B HFS gt EmZANI J4 HCLK gt Panel HDATA 0 3 Connector K i 2 4 20 Pins 24 KEY_MENU b 1 Inverter BD KEY_SELECT 825 U11 1 5 DEP 127 B26 GND B27 E NM A
49. ove the screw cover on the rear side of the monitor Figure 5 1 2 Remove three screws Figure 5 2 Figure 5 1 Figure 5 2 29 LCD MONITOR 15EX2 MAINTENANCE 5 Assembly amp Disassembly 3 To detach the LCD frame first lift the lower edge and then separate it from the housing Figure 5 3 4 Disconnect the cable connected to the LCD frame Figure 5 4 Figure 5 3 Figure 5 4 30 LCD 15EX2 MAINTENANCE 5 Assembly amp Disassembly 5 Remove four screws then lift up the LCD panel slightly Figure 5 5 6 Disconnect three cables connected to the LCD panel Figure 5 6 Figure 5 5 Figure 5 6 Reassembly 1 Reconnect the cables to the LCD panel then fit the LCD panel into place and secure with four screws 2 Reconnect the cable to the LCD frame then fit the LCD frame back to the housing 3 Secure three screws on the rear side of the monitor and replace the screw cover 31 LCD MONITOR 15EX2 MAINTENANCE 5 Assembly amp Disassembly 5 2 2 Power Connector Board Disassembly 1 Detach the LCD panel See section 5 2 1 2 Remove one screw locking the connector board then you can lift up the connector board Figure 5 7 Figure 5 7 Reassembly 1 Fit the connector board into place and secure with one screw 2 Reassemble the LCD panel 32 LCD 15EX2 MAINTENANCE 5 Assembly amp Disassembly 5 2 3 Signal Cable Disassembly 1 Detach the LCD panel See section
50. pF 134 PLL SGNDA Analog ground for the Source DDS PLL Must be directly connected to the analog system ground 135 Reserved For testing purposes only Do not connect 136 PLL SVDDA Analog power for the Source DDS PLL Must be bypassed with a 0 1 uF capacitor to pin 134 SGNDA 137 DAC SVDDA Analog power for the Source DDS DAC Must be bypassed with a 0 1 uF capacitor to pin 138 DAC SGNDA 138 DAC SGNDA Analog ground for the Source DDS DAC Must be directly connected to the analog system ground 139 SVDD Digital power for the Source DDS Must be bypassed with a 0 1 uF capacitor to digital ground plane 141 in Reference clock TCLK input from the 50 Mhz crystal oscillator 142 IXTAL out If using an external oscillator leave this pin floating If using an external crystal connect crystal between TCLK 141 and XTAL 142 See 5 pin 107 143 PLL RVDDA Analog power for the Reference DDS PLL Must be bypassed with a 0 1 uF capacitor to pin 144 PLL RGNDA 144 PLL RGNDA Analog ground for the Reference DDS PLL Must be directly connected to the analog system ground plane 145 Reserved For testing purposes only Do not connect 146 SUB RGNDA Dedicated pin for the substrate guard ring that protects the Reference DDS Must be directly connected to the analog system ground plane 148 VSYNC in CRT Vsync input TTL Schmitt trigger input 149 SYN VDD Digital power for CRT Sync input 150 HSYNC in CRT Hsync or
51. uF ouer 2 4 BAVOSLTI gl W ev 4 4 4 Lac L 1 _12 NC 10P GND 75 et 19 20 21 c22 C23 c24 c25 C26 C27 C28 ADC_GNDA 915 T 1000P 22uF 1BV0 1uF 22uF 1BV0 1uF 0 1uF 0 1uF 0 1uF 0 1uF ADC_GNDA BAVSSLTI 10 S GIN B12 2202100 T 1 7 amp TO EXTERNAL SIGNAL CABLE E GND VDDA DIGITAL 100 C29 s 1 csi cas cas C35 EOPPLY 33 75 NC 10 ANALOG SUPPLY _ DECOUPLING 9 j 2 L DECOUPLING 22uFMBVO tuF O tuF O tuF 4 C36 C37 C38 9 ADC_GNDA BAV98LT1 B13 0 1uF lt R BIN ADC_GNDA D4 100 cat GND R4 dk we INPUT AC H 75 NG COUPLING C42 0 01uF RED ut 9 R49 R50 ADC_GNDA rare NC NC GNDA B ac 991 GREEN 8888 88888 88 588 5858 0608 2 8885 55855 25 AS SSSSS SES 52 2682 2088 jj E85 EEOE RB C44 0 014 BLUE gooB 49449 88 2 VS VGA RS 2100 VSYNC 8884 292005 lt lt 1 D gt V_STATE E PDO 1 E R2 asp ppo Zi 6 E R2 814 GREEN FL PDZ 7 2 84 05 BLUES PDA PDS 8 i E R5 EAM 9 ppa L I PD4 RP2 5 4 33 R6 ERA RED 94 66 6 3 z GREEN 90 RED PDS 64 7 2 62 165 BAV99LTI T BLUE GREEN PD6 Ce PD 1 G3 G2 HS HSY
52. ue for that item which is selected by Select key Display Message DJUSTING displayed while adjustment is performed OUT OF ADJUST QUT OF TIMING displayed when H sync or V sync are out of range NO SIGNAL displayed when there is no signal LCD MONITOR 15EX2 MAINTENANCE Message Size Position FrontColor Back Color Message Displayed Position Secret Operation AGING Menu Select Right gt and Power ON VERSION Menu Left lt Right gt and Power ON Version Displayed Position MODEL NAME LCD ISMAT VERSION ROO CKS 10 LCD MONITOR 15EX2 MAINTENANCE OSD OFF MENU and Version NO SIGNAL OUT OF TIMING OUT OF ADJUST OSD Value Each OSD value is memorized on EEPROM LCD MONITOR 15EX2 MAINTENANCE 1 3 HARDWARE SYSTEM BLOCK DIAGRAM LCD Pane Pre AMP ADL PLL Scaling gm ZAN1 EEPROM 24016 Key Control BD SWITCH Liner REGULATOR Regulator JUMPER HIP6013 gm ZAN1 12 LCD MONITOR 15EX2 MAINTENANCE 1 4 POWER SUPPLY AC ADAPTER Model name API 208 98010L Note 1 68 min at full load 115Vac 60Hz Note 2 No max limits but in hot start shall no damage amp Fuse could not open Note 1 The ripple and regulation shall be maintained in gem SPEC for all combinations of below condition min
53. xev SOFT 5 SOFT_PWR LED AMBER 6 AMBER LED GREEN T LED GREEN GND 9 ku 9 PH 9 Di TO INTERFACE BD LED DRAWN DESIGNED CHEAKED APPROVED Alpha Hsu Alpha Hsu Alpha Hsu Alpha Hsu LE BE IS 2 Title 15EX TA KEY SW BD Bize Document Number PCB 630015130003 Rev B PCBA 640015130003 01 Date 01712701 Eheet 1 of 1 1 6HEADER 21 IS Jl 6 22 ON THE SAME SII CHEAKED APPROVED DRAWN DESIGNED Alpha Hsu Alpha Hsu Alpha Hsu Alpha Hsu MiTAC 22 PWA PWA 15AX TA JACK_BD Document Number PCB 630015120002 PCBA 640015120002 ate Wednesday April 19 2000 Sheet 1 of 2 LCD MONITOR 15EX2 MAINTENANCE REFERENCE MATERIAL 15 2 ENGINEERING SPECIFICATION Jeff Mitac smZANI1 DATA SHEET gt Genesis Microchip Co THE HMISEX2 PRODUCT SPEC Jeff Lee Mitac 54 SERVICE MANUAL amp TROUBLESHOOTING GUIDE FOR 15 2 Sponsoring Editor Shoestring Tsai Author Richard Wang Assistant Editor Kelly Chiang Publisher MITAC INTERNATIONAL CORP Address 4F NO 18 PU DING ROAD HSINCHU TAIWAN R O C TEL 886 3 5645850 Fax 886 3 5781245 First Edition May 2001 E mail Jesse Jan mic com tw
54. z 123 10 123 ME 555 dd GND 555 85585 228 8858 22552 222 EN x 4 l 9599 88955 2058920 band e 2 We 9140 00200000 00022 Pd h 222 2322 Ganda ooo 009065 s gmZAl 0 FROM FROM 21 0 Np GND Np GNDA R54 amp R55 ATKQ 47K ADC_GNDA 05 24021 8 VSYNC R56 100 neh NOTE ANALOG AND DIGITAL GROUNDS MUST BE DRAWN DESIGNED CHEARED APPROVED Se SAN 10 4 e Sor NC 2 INTERCONNECTED AT A SINGLE POINT SDA R 100 4 5 SDA 3 ALPHA HSU ALPHA HSU ALPHA HSU ALPHA HSU 4 0 tuF Ce C66 vss ii 47 47 GND Me 15EX TA INTERFACE BD ze Document Number PCB 630015130002 PCBA 640015130001 01 Date Sheet 2 St
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