21KX-TG6411CT/KX-TG6412CS/KX-TG6413CT/KX-TG6414CT/KX-TGA641CS/KX-TGA641CT1.0MR378PDN10pC533270kR543CN431HEADSET_JACK14235K0.1C3741.0MR376NCC364NCR507560R362R4331k1kRA4011234BATTN10kR368K0.1C54433kR36947kR361NCR5062.2MR377NCC4363.3kR366R435NCR431 NCR4361k120R367R437100kK0.1C379C508 10uF6.3VK0.1C363390R417220kR374NCR505L431 NC330u6.3VC373D413C426NCQ361K0.1C377K0.1C362C41710uF6.3VK1.0C5033.1V1 VOUT2 VDD3 ON/*OFF5EXT4VSS1 G2 S3 K 4A5NC6DD412L434L432 NCC434NCC43510uFR4342.2kK0.1C531K0.1C52610pC5322.0V_Reset4VSS3NC1 OUT2 VDD NCC413NCC4125.6nF301NCC353100kR509CHG110R5082.2MR379C427NCBATTPNCC432NCC41110kR534CHG2D3642.7V1VIN2VSS3ONOFF5 VOUT4 NCNCC351C433K6800PNCC365D36147kR363 1.2R370Q543BCEQ364 Q362D531NCQ5312.2kRA4021234RECEIVER1 +2 -SP_PHONE1 +2 -2.7VGND_0GND_0GND_0 GND_0GND_0GND_0GND_0GND_0C423NCC424NCGND_0R380NCGND_02.7VGND_0GND_0 GND_0 GND_0 GND_03.1VD426D427D423D42447R371K0.022uC415K0.022uC414K1000pC416MICPSPMVBATVSSMICMSPPRXTXK1.0C421K1.0C371K1.0C372MIC1210pC52010pC52110pC5220R60010pC523V_BAT1NCR390NCR391NCR392 NCC390NCQ390NCC391NCR393 NC4VSS3NC1 OUT2 VDD47kR526680u6.3C36110nL374K1.0C4221000pC5341000pC535100RA4031234100R412100R413UARTPDN_ICDC/DCBATTERYCHARGETerminalGNDPAGNDAK0.1C506IC373 IC372IC374IC371IC390(1)(2)(3)(4)(5)(7)(6)(9)(10)(11)(12)(13)(14)(16)(15)(17)(19)(18)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(8)3.1V2.7V2.6~3.0VTEST SIGNALFREQUENCY:1kHzSP phone RX(MIC Mute: ON)1.8Vp-p/8(Vol.Max)Headset RX170mVp-p/150(Vol. Max)Headset TX50mVp-p/600 INHandset RX(MIC Mute: ON)590mVp-p/150Handset TX88mVp-p/600 INSP phone TX30mVp-p/600 INKX-TGA641 SCHEMATIC DIAGRAM (Handset_Main)NC: No ComponentsCharging detectionCharging control TROvervoltage detection circuitVoice circuitEEPROMWritingprotection TRAnalog GND