HI, NEED HELP ON ABOVE RADIO, REMOVED RESITOR ACCORDING TO MODS.DK FOR EXTENDED TX. NOW MY .600 SPLIT AUTO HAS MOVED TO AMERICAN BAND. IS THERE ANY OTHER WAY TO KEEP EXTENDED TX/RX BUT WITH THE AUTO REPEATER SHIFT FOR MY COUNTRY.
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You've replaced the pre driver, the drivers and finals. Set bias and still low output. The pre driver is the same transistor used as the tx exciter transistor on other pcb chassis on bottom of radio. Follow the gray coaxial wire from the pre driver on the RF circuit board back to the tx/rx i.f. Circuit board. The gray coax cable plugs right next to the tx exciter transistor on this pcb. Again it's on a different pcb all together and on the bottom of the radio and also. Replace it! And check for open bias or emitter to ground chip resistor next to it. You will get your drive back. Very few rigs have I seen the actual Finals blown in the mosfet or the bipolar version. Just the driver stage with a week pre driver and the SMT "pre" pre driver on the same RF pcb. And the tx exciter on the other pcb.
You have to ADD a PL Tone board. There should be a front panel switch that says TS that is the on/off power to the connector. There is a connector inside for +12VDC, switched ground and Encoder input. Look online for the schematic, or contact CommSpecialists for the sheet that lists the colors of the wires on the connector and where you connect them when you add a CTCSS Tone board.73's