Icom IC-M604A Service Manual - Page 35

9-5 LOGIC UNIT (BOTTOM VIEW) 1 to MAIN unit J1 25 J1 GND TXDET GND GND H/L ATT1 PSTB PCK 8V GND RXADJ WXDET GND 27 J3 GND SEND DASTB TMUTE ATT2 UNLK PDATA GND S5V DEC2 DEC1 SQL TEMP 2 26 to LCD CS1B RESETB RS RW_WR E_RD DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 GND VDD VOUT C3+ C3C1+ C1C2+ C2V0 V1 V2 V3 V4 15 J6 1 CMDPWR1 GND CMDPWR2 The combination of this page and the previous page shows the unit layout in the same configuration as the actual P.C. Board. ICF3 GND KPWRH2 to CONNECT unit J6 26 V95 V90 V85 V80 V75 V70 V65 Internal speaker V60 (CHASSIS: SP1) V55 V50 V45 V40 V35 V30 V25 28 J2 V20 2 1 8 1 6 1 6 J7 J4 J5 V15 S5V SQLV GND DIAL1 DIAL2 DIAL3 DIAL4 GND KEY GND PTT HANG SPSP+ KEY GND PTT HANG SPSP+ GND HV NC SPSPDSC OPTIN SCON DATAMN DATANM EPOE PWRON EPSTB DATAH1M SCOUT NC AF AF GND BEEP RMUTE OPSTB GND MICM FOG DATAH2M DATAMH2 DATAMH1 27 to AF unit J1 1 V10 to DIAL/SQL unit W1 to FRONT unit W1 to FRONT unit W7 (OPC-1658) (OPC-1212) V5 H150 H145 H140 H135 H130 H125 H120 H115 H110 H105 H100 H95 H90 H85 H80 H75 H70 H65 H60 H55 H50 H45 H40 H35 H30 H25 H20 H15 H10 H5 9 - 3 V0 H0