Panasonic KX-TG6421FXS Service Manual

Contents

82KX-TG6421FXS/KX-TG6421FXT/KX-TGA641FXS/KX-TGA641FXT13.2. Schematic Diagram (Base Unit)3.0V2.5VTX _RFTX _RFRX _RFBeepBell signalGNDSPmSPpGND GNDGND*C505 NC*C502 NC*SW1NC12GNDNC*C501GND+3.0V100R75270k*R425UTXURXGNDANT_1ANT2NCC854ANT1GNDGNDANT_2GNDNCC850GND GND0R5110*R5420*R5160*RA5011234 56781kR760*R532ANT1_TP ANT2_TPGNDGNDGND1uC616GND+3.0VGNDAP1*CN5 .PARALLEL WIREGND10kR77R78 NCGND+2.5_CP1uC625*C503 NCNCC430GNDCL1 CL2GND 10pC811GND100nC808GNDGNDGNDPON1kR804RF_RXpRF_RXnGNDGNDGNDTXpGND10pC819220R806GNDTXnGNDPSEL3.3nC81410pC825VDD_PADRVTXON1kR803GND1PSET 2VCCS 3PI 4PIX7 PSEL8 POX9 PO10 VCC11GND5PRAMP6 PAONGNDGNDGNDRXON220R80710pC809GND47R805GND 10n*C421GNDGND10k*R424NC*C423GND*Q421VDD5GND100n*C422560*R426560*R427560*R4283.3k*R429GND10k*R135GND10R43010pC827GNDGNDC85910p10pC85510pC857100pC856100pC85810p*C14510p*C14610pC81210pC63010pC631GNDGND10100nC60CLKGND_C*Q24NC*C504 NCGNDNCC506+1.8VC837NCCN5-10CN5-9CN5-8CN5-7CN5-6CN5-5CN5-4CN5-3CN5-2CN5-11.5pC80327nL801DA802123DA80112310p*C51110p*C51210p*C51310p*C51410p*C51510p*C516C8532p1.8pC8041.8pC802Shield1 234563nL8023nL803GNDC8512p10pC8223.3pC8053.3pC8062.2pC8102.2pC813VDD4*C163NC10p*C51710p*C51810p*C519GNDC520NCGNDJTAG3pC860GND10pC861GND1.5*R861.5*R87220RA801234NC*R1322.2n*C1492.2n*C150GNDGND100pC823GND0.9pC8260.75pC820120R8020.5pC8341 *CE2 SO3 *WP4 VSS 5SI6SCK7*HOLD8VDD 1.5k*R8081.5k*R801SDA2SCL2TAM_CSnSPI_CLKTAM_WPKEY0KEY1ROW1ROW2KEY2ROW0LED1CHARGETAM_WPSPI_DISPI_DOSPI_DOTAM_CSnSPI_DISPI_CLKLow_RadLED2ROW1ROW2KEY0KEY1KEY2ROW0ROW0for TG8421/6421for TG6411/8411CP_OUT1=3.0VPow_AdjPre-matchingBalunBPFW 0.15mmL 22+/-4mm1st or 4th layerW 0.15mmL 22+/-4mm1st or 4th layerW 0.15mmL 22+/-4mm1st or 4th layerW 0.15mmL 5.0mm1st layerW 0.15mmL 5.0mm1st layerW 0.15mmL 20+/-2mm3rd layerW 0.15mmL 20+/-2mm3rd layerW 0.15mmL 20+/-1mm3rd layerW 0.125mmL 7.6mmGap 0.125mm1st layerW 0.15mmL 4.0mm x2 1st layerIC801*IC421(1)(2)(3)(4)(5)(7)(6)(8)(9)NC: No Components