Service manual

22
Functional Description
DCB, DCFCB and DCFCTB Models
TP14
Ground
TP15
12 Volt Regulated power supply
TP16
Isolated +12 Volt Regulated power supply
TP17
Isolated +5 Volt Regulated power supply
TP18
Isolated Ground
S1
Local Activation #4
Press and hold for ½ second, Activates Functions under code 4.
S2
Local Activation #1
Press and hold for ½ second, Activates Functions under code 1.
S3
Local Activation #2
Press and hold for ½ second, Activates Functions under code 2.
S4
Local Activation #3
Press and hold for ½ second, Activates Functions under code 3.
S5
Processor Reset
S7
110 / 220 VAC Selector switch
R48
External transceiver receive audio set to 1Vpp at TP8
R61
Test Speaker output level set
R70
MSK modem transmit deviation level set
R71
DTMF transmit deviation level set