TK-521075BLOCK DIAGRAMTC75W51FKSWSW2SJ243,SSM3K15TESW2SJ243,SSM3K15TESSM3K15TESWTC7W66FKAFampAFampEXT SPINTSPAMP5MINTMIC1INTMIC2(NoiseCancel)5M 5VSPamp5VSPampINAFCEXAFCAVR2SB798(DL,DK),UMG3NSWSSM3K15TE5AC+B3.6V DC/DCConvertorSwitchingTransister5.6VDETCE+B3.3VRegulator3.3VRegulator1.5VRegulator2.5VRegulator33M33A25D15DPWR5V Regulator 5MLM4906LDLM4906LD36M16keymatrixshiftregisterBU4094BCFx3KEYscanCLK,DAT,OE,KES 33MINT/EXT gain control5VSPampLED BACK LIGHTAVR2SB798(DL,DK),2SC4617(S)LCD BACK LIGHTPTTSW SW+B5ACORANGEKEYCONCENTRICSWCH_ACH_BCH_CCH_DTGL1TGL2SELECTORKNOBKINKINKINTGL0CH _ACH _BCH _CCH _DTG L0TG L1TG L2SSM6L05FUSSM6L05FU+B+BPOWER SW/Volume33MVoLMIC TC75W51FK15VLMC7101BIM5LCDV8.8~12.2VLCDTXLEDBUSYLED1SS301XC6204B332MXC6204B332MXC6204B252MXC6209B152MTK11250CUCBXC61CC5602NRXC6365D103MHRB0502ATPC6102INT MIC1INT MIC23.0VRegulator 28MXC6201P302MR1SS38815V DC/DCConvertorSwitchingTransister/Diode15VXC9101D09AKRSSM5H01TUSB1SB1X57-6820-XX B/5(Control Unit)AF+BX57-6820-XX C/5X57-6820-XXA/5(TXRX Unit)X57-6820-XX(TXRX Unit)SIDE KEYIC704Q703 Q704Q706 Q705 D801D901IC801IC802IC806IC803IC606IC701,IC702,IC703Q801 Q802IC805IC804IC603 IC604 IC601IC602Q601Q611 Q612Q609 Q610Q608 Q605Q606 IC808Q802IC603IC807A/5