Dell E173FP service manual Keypad Board

Page 34

DELL E173FP Service Manual

8.2.3 Keypad Board

OSD is unstable or not working

Is Keypad Board connecting normally?

Y

Is Button Switch normally?

Y

Is Keypad Board Normally?

Y

Check Main Board

N

N

N

Connect Keypad Board

Replace Button

Replace Keypad

34

Image 34

Contents LCD Monitor Dell E173FPTable of Contents Page Monitor Specifications Monitor Block Diagram LCD Monitor DescriptionGeneral Instructions Control ButtonsAdjusting the Picture Corresponding setting window here Positioning is displayedSetting colour temperature and colours Adjusting size and positionSetting Image Setting display of the OSD menuSetting Language Factory ResetInput Signal Connector 4.1.1 Analog D-SUB Connector Factory Preset Display ModesDisplay Characteristics Power Supply Requirements 4.3.1 Input RequirementsPanel Specification 4.4.1 Panel Feature Output RequirementsOptical Characteristics Parameter guide line for Ccfl InverterBlock Diagram Monitor Exploded ViewSoftware Flow Chart Page Electrical Block Diagram 5.3.1 Main Board MCUPWPC1742LGD1 Schematic Main BoardZAN3 SL & MCU Keys Connection Panel Interface Power TO263Internal Power Board For 17&15 4 Lamps Inverter PCB Layout Inverter/Power Board Page Keypad Board Equipments and Tools RequirementTrouble Shooting Main Board No display PANEL-POWER Circuit Inverter Control Relative CircuitU102-DATA Output NG OK Power/Inverter Board 1. No powerOK NG LED, No Backlight Keypad Board White-Balance, Luminance adjustment Turn the POWER-button off to on to quit from factory mode Edit Content 00 01 02 03 04 05 06 07 08 09 a B C D E FConnect ISP Writer preparation action： To Use ISP WriterChoose W78E65 Click OK Button Page Page Executing ISP Bill Of Material List CN901 Assy PCS Chip AR 8P4R 4.7K OHM+ PCS R122 61L0603472 Chipr 4.7K OHM +-5% 1/1 Chip Bead 120OHM 6A PCS MLL5232B by Full Power PCS Plug PCS Common Choke PCS Power Board PCS Ferrite Bead PCS TL1451ACD PCS R236 61L0603511 Chipr 510 OHM+-5% 1/10W ZD RLZ11B Rohm PCS STP8NK80ZFP PCS

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