Daniels Electronics MT-3 Series, Instruction Manual

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Transmitter Alignment
25
MT-3 FM Transmitter Mainboard Instruction Manual
IM20-MT3TXMN
Standard faCtory SettInGS and JumPer
ConfIGuratIonS
The standard jumper configuration for the transmitter mainboard is normally employed for transmitter
alignment. In a standard configuration, the only alignment required on the MT-3 FM Transmitter
Mainboard for a synthesized transmitter is to set the frequency switches (FSW1, FSW2, FSW3
and FSW4) for the desired channel frequency. FSW1 is the most significant digit of the frequency
switches. The switch settings for the desired channel frequency can be found in the channel
designation tables (IM20-VT3H040CT).
mt-3 fm transmitter mainboard Jumpers
Jumper Default Position Description
J2 X Optional relay configuration
J3 X Optional relay configuration
J4 y Optional relay configuration
J6 not Installed transmitter standby mode select – mode 1
J7 y audio processor standby mode select
J9 not Installed receiver audio aC/dC input coupling
J12 not Installed Amplifier power sense output configuration
J13 X Amplifier power sense output configuration
J14 X Amplifier power sense output configuration
J15 X Amplifier power sense output configuration
J16 X Microphone configuration
J17 Installed microphone output line
J18 y Synthesizer module standby mode select
J19 X 600 Ω audio transformer enable; Y position disables
J20 X 600 Ω audio transformer enable; Y position disables
J21 not Installed +8 VdC audio processor supply bypass
J22 X 600 Ω audio transformer enable; Y position disables
J23 X 600 Ω audio transformer enable; Y position disables
J24 Installed Subtone #2 output enable
J25 X audio output enable
J26 Installed time-out-timer timing resistor select
J27 not Installed time-out-timer timing resistor select
J28 not Installed time-out-timer timing period output select
J29 Installed time-out-timer timing period output select
J31 Installed time-out-timer timing period output select
J32 not Installed time-out-timer timing period output select
J33 Installed time-out-timer input enable
J34 Installed time-out-timer power enable
J35 Installed time-out-timer output enable
NOTE : Jumpers J1, J5, J8, J10 and J11 designations are not used.