Motorola LB3 (42.0 - 50.0MHz) Informacje o usłudze - Strona 23
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1.0
Allocation of Schematics and Circuit Boards
1.1
Controller Circuits
The Low Band circuits are contained on the printed circuit board (PCB) which also contains the
Controller circuits. This Chapter shows the schematics for the Low Band circuits only, refer to the
Controller section for details of the related Controller circuits . The PCB component layouts and the
Parts Lists in this Chapter show both the Controller and Low Band circuit components.
The Low Band schematics and the related PCB and parts list are shown in the tables below.
PCB :
SCHEMATICS
Parts List
Controller version is T6
PCB :
SCHEMATICS
Parts List
Controller version is T6
LOW BAND PCB/SCHEMATICS/PARTS LISTS
Table 4-1 LB1 25-60W Diagrams and Parts Lists
8486206B06 Main Board Top Side
8486206B06 Main Board Bottom Side
Power Amplifier 25-60W (Sheet 1 of 2)
Power Amplifier 25-60W (Sheet 2 of 2)
Voltage Controlled Oscillator
Receiver Front End
IF (Sheet 1 of 2)
IF (Sheet 2 of 2)
Noise Blanker
FRACN
8486206B06
Table 4-2 LB2 25-60W Diagrams and Parts Lists
8486207B05 Main Board Top Side
8486207B05 Main Board Bottom Side
Power Amplifier 25-60W (Sheet 1 of 2)
Power Amplifier 25-60W (Sheet 2 of 2)
Voltage Controlled Oscillator
Receiver Front End
IF (Sheet 1 of 2)
IF (Sheet 2 of 2)
Noise Blanker
FRACN
8486207B05
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Chapter 4