TK-2180 SCHEMATIC DIAGRAM507654321A B C D EX54-347 1/2C5244.7u16IC503HD74LV2G34AUS11A23Y32A4GND5 2Y6 3A7 1Y8 VCC11A23Y32A4GND5 2Y6 3A7 1Y8 VCCR5710C5384.7uR545 R546C5271u10CN507E40-6410-0512345L553R542 470R547R574C501 470pC525470pC5281u10C5561000pR544R541 470C5374.7uC5551uL550R57501VIN2VSS3NC14NC25VoUTR552 470C500 470pC503 470pR560470kL554R573470kC5234.7u16C502 470p R543 470CN508E40-6413-051234567891011121314151617181920C5531000pS DGR540 470C5541000pC2+V5out(X54-3470-XX)RESETSCLGNDX54-3470-XXP/SC1+SIDE KEYSECTIONLCD ASSY(B38-0900-05)C1-K1LCD CONTROLK1OSC1LCD CONTROLSW1PTTVciSW2VOLTAGEREGULATOR/LCDSW2OSC2NCV5VssCONTRAST CONTROLCSGNDSW1SIOPTTDISPLAY UNITRSSW2VDDC2-R/WVssB30-2215-05NOD516D515B30-2215-05NONOB30-2215-05D514NOD513B30-2215-05NOB30-2215-05D512B30-2215-05D511NOIC502HD74LV2G34AUS2SJ144(Y)Q505470k 82k39k0 150kKK2-10-11NOR526390NOR525390NOR524390SW15MLCDRSLCDCSCLKDATALCDRSTPTTIC501XC6201P352MR3.51V3.51V4.98V