Hytera RD985 - Disassembly and Assembly; Product Disassembly Steps

Service Manual
Transmitter Circuit
319
No power output
No
Any APC output?
Check the baseband board
Yes
No
No
Yes
No
Yes
Yes
No
Transient TX
current >2A
Exciter output?
Check the exciter
board
Replace PD85035
9.3V power supply
voltage >9V
Check PCB
transistor
RD01 and RD07’s
Vgg>0.5V
Check the control circuit
Replace RD01 and RD07
Yes