Instruction Manual
Page 13
...turn DSP noise reduction ON or OFF. • " " appears on page i-2. 4 While in the receiver front end (input) circuit to turn the 12 dB attenu- Turn ON 'P.AMP' when receiving weak signals. ✔ What is ON, enters the tuning step selection mode when held down for 1 second. •... amplifies signals in AM/FM/WFM modes, push momentarily to turn the programmable tuning step ON or OFF. See page 13 for details. @3 PRE AMP/ATTENUATOR KEY [P.AMP/ATT] (p. 72) ➥ Push momentarily to turn the preamp ON or OFF. • " " indicator appears when the preamp is activated....
...turn DSP noise reduction ON or OFF. • " " appears on page i-2. 4 While in the receiver front end (input) circuit to turn the 12 dB attenu- Turn ON 'P.AMP' when receiving weak signals. ✔ What is ON, enters the tuning step selection mode when held down for 1 second. •... amplifies signals in AM/FM/WFM modes, push momentarily to turn the programmable tuning step ON or OFF. See page 13 for details. @3 PRE AMP/ATTENUATOR KEY [P.AMP/ATT] (p. 72) ➥ Push momentarily to turn the preamp ON or OFF. • " " indicator appears when the preamp is activated....
Service Manual
Page 14
...-IC5155), etc. The output 5 V voltage is applied to the CODEC IC (LOGIC unit; IC451, IC502), etc. Transmit 8 V controlled by the 5 V regulator circuit (IC1951). IC1302, pin 106). The output voltage is applied to the buffer amplifiers (IC2101-IC2103), analog switches (IC2156... port for PTT control signal from the microphone that is opened . Outputs the dimmer control signal for [MODE], [P.AMP/ATT], [Y(MENU/GRP)] and [Z(MENU/ GRP)] keys. Outputs the dimmer control signal for [PBT/M-ch/ RIT] indicator. Outputs control signal for the LCD backlights. IC1302...
...-IC5155), etc. The output 5 V voltage is applied to the CODEC IC (LOGIC unit; IC451, IC502), etc. Transmit 8 V controlled by the 5 V regulator circuit (IC1951). IC1302, pin 106). The output voltage is applied to the buffer amplifiers (IC2101-IC2103), analog switches (IC2156... port for PTT control signal from the microphone that is opened . Outputs the dimmer control signal for [MODE], [P.AMP/ATT], [Y(MENU/GRP)] and [Z(MENU/ GRP)] keys. Outputs the dimmer control signal for [PBT/M-ch/ RIT] indicator. Outputs control signal for the LCD backlights. IC1302...