Icom IC-F50V Service Manual

Also see for IC-F50V: Price list Instruction manual Operating guide Instruction manual

Contents

Icom IC-F50V Service Manual Manual pdf 14 page image

4 - 8PinNo.Linename Description I/O1–11 SEG23–13LCD segment ports. O13 SEG1215–25 SEG11–126 SO Serial data to DAC (M: IC6) andaudio strage IC (M: IC18). O27 SCK Serial clock to DAC (M: IC6) andaudio strage IC (M: IC18). O28 MDIO Data I/O for baseband IC (M: IC10). I/O29 MSCK Clock to the baseband IC (M: IC10). O30 SS Chip select signal to the Voicestrage IC* (M: IC18). O31 PLST Strobe signal to the PLL IC (M: IC4). O32 SDA Serial data to DAC and voice strageIC* (M: IC18). O33 SCL Serial clock to DAC (M: IC6) andvoice strage IC* (M: IC18). O34 INT Interupt signal to voice strage IC* (M:IC18). O35 EXSF Strobe to the expander (F: IC410). O36 EXSM Strobe to the expander (M: IC12) O37 EXOEO u t p u t e n a b l e s i g n a l t o t h eexpander ICs (F: IC410 and M:IC12).O38 BEEP Beep sounds. O39 MTDT D a t a ( M S K T X d a t a ) t o t h ebaseband IC (M: IC10). O40 MTCK C l o c k ( f o r M S K T X d a t a ) t obaseband IC (M: IC10). O41 NOISE Noise level from FM IF IC (M: IC1). I43 SDEC Tone signals (DTMF, 2/5tone). I44 CDEC CTCSS/DTCS signals. I45 VOXV VOX detect."High"=start to transmit. I46 KR1Key input for [UP], [P0] and [P3]keys.(Pulled up)I47 KR0 Key input for [DOWN], [P1] and [P2]keys. (Pulled up) I48 BATV Battery volatge for monitoring. I49 LVIN Lock voltage for monitoring. I50 RSSI RSSI voltage from FM IF IC (M:IC1). I51 TEMPVoltage divided by thermal register(M: R190) and R191. (temperaturemonitor)I52 OPTV Optional unit detect."High"=An optional unit is connected. I55 UNLK PLL unlock signal from IC4."Low"=PLL is unlocked. I59 RES Reset signal from the reset IC (F:IC408). I68 BPMAXBeep sound level control signal toBEEP SW (F: Q415)."Low"=Maximum beep sound level.O69 RAC Row address clock to the Voicestrage IC* (M: IC18). OPinNo.Linename Description I/O70 PTT [PTT] key (F: S401).(Pulled up) I71 MDIR Serial data I/O control signal to thebaseband IC (M: IC10). O72–75SENC3–SENC6 2/5 tone, DTMF signals. O78 MRDF MSK data RX flag/flame detectsignal to the baseband IC (M: IC6). O79–81CENC0–CENC2 CTCSS/DTCS signals. O82 DAST Strobe signal to the DAC (M: IC6). O88–91COM4–COM1 LCD common terminals. –92–100 SEG32–24 LCD segment ports. O*; [C], [F], [I], [L] only4-6 CPU (F: IC401) PORT ALLOCATION