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Dell 320-7459 - S1909WXF - 19" LCD Monitor, Service Manual

The Dell 320-7459 - S1909WXF - 19" LCD Monitor is a high-quality display that offers vibrant visuals for an immersive viewing experience. Explore its full potential with the comprehensive Service Manual, available for free download on our website. Discover in-depth instructions and troubleshooting tips to make the most out of your monitor and ensure optimal performance.

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 Service Manual

 

 

                       

 

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Summary of Contents for 320-7459 - S1909WXF - 19" LCD Monitor

Page 1: ...Service Manual 0 Service Manual LCD Monitor S1909WXf ...

Page 2: ...lease Copyright Copyright 2007 InnoLux Display Corp Ltd All Rights Reserved This manual may not in whole or in part be copied Photocopied reproduced translated or converted to any electronic or machine readable form without prior written permission of Foxconn Tech Corp Ltd Dell S1909W Service Manual ...

Page 3: ...BLY BLOCK 22 3 ASSEMBLY BLOCK 23 CHAPTER 5 TEST AND ADJUSTMENT 24 1 FUNCTION KEY DEFINITIONS 24 2 OSD CONTROL 24 3 FACTORY MODE INTRODUCTION 26 4 BURN IN PATTERN 27 5 AUTO COLOR BALANCE AUTOMATICALLY CALIBRATE CHIP ADC PARAMETER BY USING CHIP INTERNAL DAC 27 6 UPLOAD FIRMWARE TO MCU VIA VGA CABLE 26 7 AFTER REPAIR TO ENSURE THE QUALITY YOU SHOULD DO THE FOLLOWING TEST AND ADJUSTMENT 27 CHAPTER 6 T...

Page 4: ...it gets wet unplug the power cable immediately and consult your closed dealer z Always unplug the monitor before cleaning it Clean the cabinet with a clean dry cloth Apply non ammonia based cleaner onto the cloth not directly onto the class screen z Do not place heavy objects on the monitor or power cord PRODUCT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety...

Page 5: ...Chapter 2 SERVICE TOOLS EQUIPMENT REQUIRED 1 SIGNAL GENERATOR 2 MULTIMETER 3 SCREW DRIVER 4 OSCILLOSCOPE 5 Soldering IRON 6 SOLDER Lead free RoHS compliance 7 Color Analyzer 8 Fox_VISP_Programmer 9 Fox_VEDID_Programmer ...

Page 6: ...luded switching power supplier inverter for CCFL and interface board fig 1 OZ9937 MOSFET MOSFET Transformer1 Transformer2 Lamp1 Lamp2 Lamp3 Lamp4 AC Input 90V 264V AC Line Filter SG5841 PWM Control Rectifier Filter Circuit Power Transformer Feedback and OVP Photocoupler 16V DC output 5V DC output Brightness Control ON OFF Control Feedback Control 1 2 3 4 Power MOSFET To Panel CCFL Snubber Schottky...

Page 7: ...CFL If no current is sensed approximately 2 seconds U1 shuts off Once the voltage at the pin4 ISEN reaches the lamp on threshold the IC switches from the striking mode to the normal operation mode and the PWM dimming control is activated DIM ADJ duty cycle signal through R2 and C2 is on Pin 3 DIM which adjusted will can change the brightness of Panel C41 is used to dump noise Internal LPWM dimming...

Page 8: ... comes to Pin4 of U1 ISEN The CCFL current detected at resistor R35 is converted to a voltage level and input to the ISEN pin C6 is used to dump noise Once the CCFLs are ignited and current is sensed through resistor R35 capacitor C6 performs the loop compensation function The voltage at IC pin12 SSTCMP controls the drive duty cycle of the power MOSFETs to regulate the CCFL current If a CCFL is re...

Page 9: ...d between two inputting main circuit to prevent man from shock L851 is used to clear up low frequency wave C850 and C851 are used to discharge the waves that L851 produced High frequency waves are damped by C852 and C853 2 2 3 High Voltage to Low Voltage Control Circuit fig 6 EMI Filter Rectifier and filter Isolation power transformer Rectifier and filter Inverter circuit PWM controller Switching ...

Page 10: ...onnected T850 Pin 1 and Pin 2 with components of D852 R855 C857 and C839 will be supplied to U830 for normal operating When the sense voltage across the sense resistor R859 reaches the threshold voltage around 0 85V the output GATE drive will be turned off Every time when the output of power supply is shorted or over loaded the FB voltage will increase the build in PWM output will then be turned o...

Page 11: ...matter is got rid of 2 3 I F Board Circuit see the Attachment 2 Schematic 2 3 1 RGB CAPTURE Signal RED GREEN BLUE input through CN101 1 2 3 Stop DC via C101 C102 and C103 and then enter into U104 TSUM56BWHK LF analog input PIN 59 56 54 and then TSUM56BWHK LF deals with signal internally D101 D102 D103 are ESD protector to prevent U104 from ESD Signal DDC_SCL series clock inputs via CN101 15 and th...

Page 12: ...2 U104 24 Voltage is defined as Plus Button Ð on front bezel connects to U104 TSUM56BWHK LF 24 through CN104 2 U104 24 Voltage is defined as Minus Button Menu on front bezel connects to U104 TSUM56BWHK LF 25 through CN104 4 U104 25 Voltage is defined as Menu Button ENTER on front bezel connects to U104 TSUM56BWHK LF 25 through CN104 4 U104 25 Voltage is defined as ENTER LED Indicator on Front Beze...

Page 13: ... DC_3 3V input to U104 and U104 reset circuit active U104 all registers will be set to default that means finish hardware power on When pull out power cord from AC socket the system shut down instantly for no supply Software power On Off When press power key U104 23 receives low pulse then TSUM56BWHK LF U104 will be wake up and send control signals at 20 75pin to on CCFL and switch 5 0v to panel m...

Page 14: ...ut connector Pin Assignment Pin Symbol Description 1 Line AC Line Vin 100 to 240 Vrms 50 60Hz 2 GND GND 3 Neutral AC Line Vin 100 to 240 Vrms 50 60Hz 7 Inner Connector Pin Assignment 7 1 CN106 Connect M B to Panel Pin Symbol Description 1 Panel_Vcc Panel power supply typ 5 0V 2 Panel_Vcc Panel power supply typ 5 0V 3 Panel_Vcc Panel power supply typ 5 0V 4 NC Pin Symbol Pin Symbol Pin Symbol 1 Red...

Page 15: ...S signal of even channel clock 23 RXOC LVDS signal of even channel clock 24 GND_LVDS LVDS Ground 25 RXO2 LVDS signal of even channel 2 26 RXO2 LVDS signal of even channel 2 27 RXO1 LVDS signal of even channel 1 28 RXO1 LVDS signal of even channel 1 29 RXO0 LVDS signal of odd channel 0 30 RXO0 LVDS signal of odd channel 0 7 2 CN1 CN2 CN3 CN4 Connect to Panel Backlight Pin Symbol Description 1 HV Hi...

Page 16: ...Service Manual 15 8 Key Parts Pin Assignments 8 1U104 TSUM56BWHK LF 2 ...

Page 17: ...Service Manual 16 ...

Page 18: ...Service Manual 17 ...

Page 19: ...PL bit in the status register 4 VSS G Connect ground 5 SI I O To transfer commands addresses or data serially into the device input are latched on the rising edge of the serial clock 6 SCK I O To provide the timing of serial interface Commands addresses or input data are latched on the rising edge of the clock input while output data is shifted out on the Falling edge of the clock input 7 HOLD I O...

Page 20: ...I Supply voltage input 3 DIM I Internal LPWM dimming or external PWM pulse input for dimming function 4 ISEN I Current sense feedback 5 PID I Analog dim input 6 RSTR I Resistor to set striking frequency 7 RT I Resistor to set operating frequency compensation range 8 ENA I ON OFF control of IC 9 VSEN I Voltage sense 10 OVPT I Over voltage over current protecting threshold setting 11 LCT I Timing ca...

Page 21: ...304200R Screw P Cross M4 10 Black NL 509116610510R Bolt 4 40 12 5 Ni 509000001000R Identification NO Q t Designation NO Remark NO Designation Identification NO Q t Remark 502210100400R 714050014900R 501020220600R 701000007600R 502090310800R 505040202600R 1 1 INSULATOR MYLAR PANEL LP1903 ROHS PCBA I F BOARD W O SPK LE19D5 812 ROHS PCBA KEYPAD power key LED BOARD 501110500301R LOGO PALTE DELL Apollo...

Page 22: ... 4 Zn Cc 4 TAPE ACE 85x20mm LE1913 1 insulator mylar panel 1 panel 1 P Cross W WAS M3 6 Zn Cc 3 B Cross W W SPR M3 9 Zn 1 I Cross M3 6 Zn Cc 3 power board 1 P Cross W WAS M3 6 Zn Cc 2 BOLT 4 40 NI 4 FFC CABLE 1 I F board 1 insulator mylar chassis02 1 STAND ASSY 1 P Cross M4 10 BLACK NL 2 Power button keyapd 1 kensington lock 1 back cover 1 OSD button 1 Note 1 The arrows point out the direction of ...

Page 23: ...1 chassis 1 insulator mylar chassis 1 I F board 1 power board 1 panel 1 insulator mylar panel 1 TAPE ACE 85x20mm LE1913 1 CHASSIS ASSY 1 STAND ASSY 1 kensington lock 1 back cover 1 front bezel 1 logo plate 1 FRONT BEZEL ASSY 1 FINALASSY 1 power button 1 shield EMI LP2207 5 Rubber Foot 2 10 3 For Cmo screw f cross T 2 3 BLK 1 OSD button 1 P Cross M4 10 BLACK NL 2 Note 1 The arrows point out the dir...

Page 24: ...input source 5 Power Power on or off the monitor Factory Modes Keys Function Auto Color Balance Purpose Automatically calibrate chip ADC parameter by using chip internal DAC Process If we want to do Auto Color Balance again please confirm the following steps 1 Connect the VGA cable with the standard video pattern generator and display the pattern with blackest and whitest colors 2 Press Power Key ...

Page 25: ...sition 50 Yes No Vertical Position 50 Yes No Sharpness 50 Yes Yes Pixel Clock 50 Yes No Phase Yes No Display Settings Reset Display Settings Yes Yes English Espanol Francais Deutsch Language 日本語 Yes Yes Menu Transparency 20 Yes Yes Menu Timer 20s Yes Yes Unlock Yes Yes Menu Lock Lock Yes Yes Enable Yes Yes DDC CI Disable Yes Yes Disable Yes Yes LCD Conditioning Enable Yes Yes Other Settings Factor...

Page 26: ...ck to NO OSD Status Panel The current setting panel is highlighted Auto Color Automatically calibrate chip ADC parameters by using internal DAC Burn In Enable or disable the Burn in mode by choosing ON or OFF Reset Timer Reset the Turn on time of the panel to 0H0M ...

Page 27: ...her Settings Menu then pop submenu and choose Factory reset Auto Color Balance Automatically calibrate chip ADC parameter by using chip internal DAC 5 1 If it is a new built set press Auto Color button on Factory menu to execute Auto Color at standard video pattern 5 MOSAIC pattern 5 2 Please confirm the following steps to perform Auto Color Balance Connect the VGA cable with the standard video pa...

Page 28: ...e detailed reprogramming procedures will be described in ISP User s Guide Edid 8 4 rar Edid rar ISP User s Guide_20070312 rar ISP_Tool V4 100 rar After repair to ensure the quality you should do the following test and adjustment ...

Page 29: ...r at power saving mode Chroma Signal Generator VGA cable detector When select VGA model and VGA cable is not plugged out self test OSD will be floated Visual check Y measurement at default setting 1 Set brightness and contrast to default value 75 at 6500K 2 With full white pattern Y shall be 220 20 cd m2 Chroma Signal Generator and Color Analyzer OSD Lock Test Soft Lock When OSD is locked this ico...

Page 30: ...e the crosshatch pattern z This LCM support 10 timing modes if the input timing mode is out of specification Cannot Display this Video Mode will be displayed on the screen z If brightness uneven repairs Inverter circuit or change a new panel z If you find the vertical line or horizontal line lost on the screen please change panel z If the self test pattern is moving on the screen please check whet...

Page 31: ...mal when power AC on Change U104 Yes Change U105 Is the keypad cable connective OK Reassembly or changing Yes Is theLED control signal at 31 of U104 high low convertible when DC on off NO NO Change Q109 Is the key function OK NO Press power key to DC on the monitor if display ok the process is end if no display see the no backlight process Yes Upgrade Firmware to Serial Flash U105 by VGA port with...

Page 32: ... separately when select VGA mode by OSD Do the Hsync Vsync Signals exist in R115 R116 Do the Hsync Vsync Signals exist in U104 63 64 Is the Q108 work normal Is theLED control signal at 35 of U104 high low convertible when DC on off END Insert VGA Cable correctly Check R115 R116 Change R115 R116 Change Q108 NO NO YES YES Change U104 NO NO NO YES YES YES ...

Page 33: ...when DC on off NO Yes Is the low active reset signal at 19 of IF Board U104 normal NO Change C160 Yes Is the serial clock signal at 6 of IF Board U105 normal when power AC Change U105 NO Upgrade Firmware to Serial Flash U105 by VGA port with ISP_Tool V4 100 exe after this process no the control signal yet change U104 Yes Change X101 Yes Is the voltage 16V at T1 PIN4 Check T850 D854 NO Yes Yes Chec...

Page 34: ... change U104 if yes Check Q103 circuit Check DC 5 0V on CN106 1 2 3 Are there data output on U104 105 114 118 127 Change U104 END Change D101 D102 D103 YES YES VGA YES NO NO NO IS the display is white and cannot display OSD when press key Yes Is the FFC cable inserting ok if no reinsert else change FFC cable No Is display selftest picture at VGA mode or DVI mode DVI Is there DVI signal in U104 39 ...

Page 35: ...Service Manual 34 At 32 gray scale pattern color lost in some scale Color lost in some scale at 32 gray scale pattern Re insert the FFC Cable Change FFC Cable Change U104 OK END OK END NO NO ...

Page 36: ...rmance EEPROM U106 U107 CATALYST 412000479990R CAT24C04WI TE13 IC CAT24C04WI TE13 SOIC 8 CATALYST RoHS EEPROM ANACHIP 412000332130R AP1117D33LA 3 3V IC AP1117D33LA 3 3V ANACHIP TO 252 3L AME 412000241550R AME1117CCCTZ 3 3V IC AME1117CCCTZ 3 3V TO 252 AM E RoHS UTC 412000332020R LD1117AL 3 3 A IC LD1117AL 3 3 A TO 252 UTC RoHS 8 Critical Regulator U103 A1SEMI 412000332830R AS1117R 3 3 TR LF IC AS11...

Page 37: ... 5X11 ROHS CAPXON SAMXON SU SCON TEAPO 1 C132 120 420222200420R A CAP HG 22uF 16V M 105 S 5X11 ROHS CAPXON SAMXON SU SCON TEAPO 1 C144 20080228 ITEM P N Revision Description Supplier Usage Location 791431340800R PCBA I F BOARD W O SPK SMT LE19D5 812 RO 10 444099030040R A CON SMD 1 0MM 30PIN with lock RoHS CVILUX P TWO 1 CN106 20 419301010560R A C SMD 0603 NPO 100PF 50V J RoHS MURATA TDK WALSIN YAG...

Page 38: ...R A BEAD CORE SMD 0805 60Ω 800mA GBK201209T CHILISIN TAI TECH 3 FB105 FB106 FB107 310 410500045210R A XSTR PMBT3904 NPN 200MA 40V SOT23 PHILIP PHILIPS 3 Q102 Q106 Q101 310 410500045140R A XSTR MMBT3904LT1G NPN 200MA 40V SOT23 ON ON SEMI 0 310 410500045090R XSTR MMBT3904 NPN SOT 23 PANJIT RoHS PANJIT 0 320 410500068290R A XSTR AP2305GN P CH SOT23 APEC RoHS APEC 1 Q103 320 410500075270R A XSTR AO341...

Page 39: ...R A RES SMD 0603 470Ω J RT RoHS TA I WALSIN YAGEO 1 R188 2 Power board BOM ITEM P N Revision Description Supplier Usage Location 791431400800R PCBA PWR INV B LE19D5 812 ROHS 10 416203323620R A CAP MEY 3300pF 250V M Y2 Y5V P 10mm W O JNC POE SUCCESS SEC TDK 2 C850 C851 20 416194743011R A CAP MEX 0 47uF 275V K X2 F15 RoHS ARCOTRONIC SCC EUROPTRONIC HJC 1 C852 30 416191043010R A CAP MEX 0 1uF 275V K ...

Page 40: ... 22 MOSPEC 0 10 411090031010R A SCHTKY MBRF10200CT 200V 10A ITO220AB TSC TSC 0 10 411090030020R A SCHTKY SRF10 20CT LF 200V 10A ITO 220AB FRONTIER 0 20 507200007600R HEATSINK U LE19D5 DMC ORIENTAL POWER ZHONGJIAN 1 30 509146308102R A SCREW PW CROSS W WAS M3 8 Zn GAOYI LIQUAN YIJIE 1 ITEM P N Revision Description Supplier Usage Location 735110007000R ASSY H S AP2761I A LE19D5 ROHS 10 410050060130R ...

Page 41: ...R855 230 414908100210R A RES SMD 0805 10KΩ F RT RoHS REV A TA I WALSIN YAGEO 2 R865 R890 240 414908330110R A RES SMD 0805 3 3KΩ F RT RoHS REV A TA I WALSIN YAGEO 3 R868 R22 R24 250 414908270310R A RES SMD 0805 270KΩ F RT RoHS TA I WALSIN YAGEO 1 R871 260 414908010150R A RES SMD 0805 100Ω J RT RoHS REV A TA I WALSIN YAGEO 1 R876 270 414908100110R A RES SMD 0805 1KΩ F RT RoHS REV A TA I WALSIN YAGEO...

Page 42: ... A RES MF HV 1 2Ws 3MΩ 3 5KV J A T RoHS WELWYN 0 80 414870305540R A RES MG HV 1 2Ws 3MΩ 3KV J AT RoHS QUEENMAO 0 90 415310102540R A RES MOF 1 8W 1KΩ J AT RoHS FUTABA QUEENMAO TZAI YUAN 2 R3 R10 100 415211009140R A RES MF 1 8W 10Ω F AT RoHS QUEENMAO TZAI YUAN 1 R1 110 415211002140R A RES MF 1 8W 10KΩ F AT RoHS QUEENMAO TZAI YUAN 3 R2 R4 R874 120 415310105540R A RES MOF 1 8W 1M J AT ROHS FUTABA QUEE...

Page 43: ...on keys BOARD LE19D5ROH 10 430639040060R WFR 4P 1 25MM R A SMD W LOCK ROHS JOWLE 1 CN02 20 414916820110R A RES SMD 0603 8 2K F RT RoHS TA I WALSIN YAGEO 2 R06 R04 30 414916470110R A RES SMD 0603 4 7K F RT RoHS TA I WALSIN YAGEO 2 R05 R03 40 491391500000R PCB keypad 4fuction key BOARD LE19D5 RO HUIHO TATCHUN 1 50 430602980110R A SW TACT 160gf 1P R A SMD 1BT00 2 0120L R ALPS HUA JIE ZJGHJ 4 S02 S03 ...

Page 44: ... 897 12x45000mm 0 00333 ROL A 50 506280007200R POSTER QUICK SETUP WEST LE19D5 1 PC A 60 703000017100R KIT ACCESSORY DOC DAO LE19D5 1 PC A 90 506120009300R BAG PLASTIC L300xW250mm PRINTED LE19D5 1 PC A 100 506120009310R BAG PLASTIC L550xW550mm PRINTED LE19D5 1 PC A 110 506020022700R CARTON DELL WWW LE19D5 1 PC A 120 506060009100R CUSHION TOP FOR LE19D5 1 PC A 130 506060009110R CUSHION BOTTOM FOR LE...

Page 45: ...SHEET L1320xW1062xH100mm LE19D5 SUNSTREAM 0 PC A 20 506037009100R CARDBOARD COVER L1320xW1062xH100xT3mm LE 佳藝 美盈森 0 PC A 30 506039007210R CORNER PAPER 1200x50x50xT3mm LE1718 佳藝 金惠 0 PC A 40 506431000300R FILM PE 500mmx900M ROHS 三輝 柏興 0 ROL A 50 506120400100R BAG AIR DUNNAGE 2000x1000mmLE1X03 ROHS SISUN 0 PC A 60 506380002612R TAPE WRAPPING TYPE 50Mx82mm 佳普森 0 ROL A 20080724 ITEM P N Description Su...

Page 46: ...n CcROHS 高億 4 PC A 50 509016306200R SCREW I CROSS M3 6 Zn Cc 高億 2 PC A 60 509000001000R BOLT 4 40x12 5 Ni ROHS 高億 4 PC A 70 505040208500R INSULATOR MYLAR CHASSIS 02 LE19D5 久威 富准 1 PC A 80 506380001730R TAPE ACE 85x20mm LE1913 久威 1 PC A 90 505040202600R INSULATOR MYLAR PANEL LP1903 ROHS 久威 富創橡塑 1 PC A 100 701000007610R ASSY CHASSIS For CMO panel FOR LE19D5 MMP 1 PC A 110 791431400800R PCBA PWR INV ...

Page 47: ...5V GND HP RX0 RX0 GND RX5 RX5 GND RXC RXC R123 10K R104 470 GNDG 4 R132 10 R122 47 C115 27p 50V R131 10 C112 NC 0 1 16V DCLK HPD_CTRL 4 SDA_DVI D113 BAV99 1 3 2 R140 20K NC R110 100 ZD104 6V2 VSY NC 4 DVI5V R125 1K R127 47 FB101 19 SDA_DVI WP1 4 ZD107 6V2 ZD103 6V2 C117 0 1 16V DCLK PC5V DATA0 C125 NC 0 1 16V C104 0 047u 16V GIN 4 G 4 R133 10 RED 5V C107 NC 4 7p 50V C FB102 19 R111 10K C121 0 1 16...

Page 48: ...6V VCC3 3 2 4 Low ON C131 0 1 16V Low OFF R141 10K Audio_on of f 4 Q106 PMBT3904 1 3 2 on_Backlight 4 U103 AP1084K33LA 3 1 2 VIN ADJ VOUT C136 0 1 16V VCC3 3 C171 1000p 50V Backlight_on of f CN103 8P 2 0mm 1 2 3 4 5 6 7 8 C132 100u 16V Q102 PMBT3904 1 3 2 5V Q103 AP2305GN 1 3 2 VLCD Backlight_on of f C168 0 1 16V Audio_det 4 C143 0 1 16V DCINPUT V02 S1909W x A 2 3 Friday July 11 2008 Title Size Do...

Page 49: ... KEY ACTIVE STATUS LVB2P LED_W LVB2P LVBCKM VCC3 3 R162 10K NC LVB1M on_Backlight 3 1 2V LVDS LVA3P PANEL_ENABLE 3 LVA2M CLK 2 WP3 R159 10 LVACKP 5V LVACKM GIN 2 WP3 WP1 2 R168 1K VCC1 8 VCC3 3 Power R156 1K C145 0 1 16V Audio_on of f 3 MINUS VDDC R180 10K NC TSUM56BWHK LF 2 59 56 57 54 58 55 53 63 64 51 62 61 70 72 71 73 79 20 108 32 33 109 110 111 112 113 114 118 119 120 121 122 123 124 125 126 ...

Page 50: ...ay July 09 2008 FOXCONN 02 Title Size Document Number Rev Date Sheet of Reversion of History Dell S1909WXf Power Inverter Schematic Diagram REV1 REV2 REVA for MP SCHEMATIC 1 3 0 Inverter DC to AC SHEET 2 3 1 0 Contents SEC CMO PANEL 2 0 Power AC to DC Open the components in audio circuit ...

Page 51: ...1 3 2 C857 10uF 50V F850 5A 250V D851 FR10 10 C876 1nF 1KV X7R R865 10K C853 0 1uF X2 C870 470uF 25V C851 332 Y1 C850 332 Y1 L857 4 5uH D856 100V10A 1 2 3 R839 499K R834 3 3K NC R836 26 1K 1 C837 100pF 50V C836 2 2nF 50V X7R U830 SG5841JSZ 1 4 5 2 8 3 7 6 GND RI RT FB GATE VIN VDD SNESE R837 15R 1 C838 10nF 50V X7R R835 47R R840 499K C839 0 01uF 50V X7R C865 470uF 35V R871 270K 1 R831 1K R830 4 7K...

Page 52: ...C22 470uF 35V R12 154K 1 C3 1nF 50V X7R C8 47nF 16V D1 RLS4148 4100 D02 CN1 1 2 D4 RLS4148 D3 RLS4148 D2 RLS4148 T1 DIP EEL19 SPW 060 1 6 4 3 10 7 R18 33R C27 1nF 50V X7R R16 33R Q1 AP9971GD 1 2 3 4 6 7 8 5 S1 G1 S2 G2 D2 D1 D1 D2 C13 100nF 25V X7R R17 33R C24 0 1uF 25V Y 5V R23 OPEN C35 4700pF 25V X7R C37 220pF 25V C39 100nF 16V R3 1K R30 680R C36 4700pF 25V X7R C26 1nF 50V X7R R31 330R 1 R35 680...

Page 53: ...Service Manual 52 Attachment 3 PCB Layout power inverter bd Power inverter bd Top Layer ...

Page 54: ...Service Manual 53 Bottom Layer ...

Page 55: ...Service Manual 54 I F board Top Layer ...

Page 56: ...Service Manual 55 Bottom Layer ...

Page 57: ...Service Manual 56 Keypad Top Layer Power key Top Layer Bottom Layer ...

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