Four Layer Circuit Board; Speaker And Microphone Schematic; Speaker And Microphone Parts List; Figure 7-1. Four-Layer Circuit Board: Copper Steps In Layer Sequence - Motorola EP350 Service Manual

UHF2 Schematic Diagrams, Overlays, and Parts Lists: Speaker and Microphone Schematic
7.1.2

Four Layer Circuit Board

Figure 7-1. Four–Layer Circuit Board: Copper Steps in Layer Sequence
7.2

Speaker and Microphone Schematic

7.2.1

Speaker and Microphone Parts List

Plating (Au)
MIC1
SPK1

Figure 7-2. Speaker and Microphone Schematic

Reference
Motorola Part No.
Designator
MIC1 PMDN4139_R
SPK1
PMDN4067BR
1
MATES WITH J103 ON
RADIO BOARD
2
1
MATES WITH J603 ON
RADIO BOARD
2
Description
Microphone
Speaker & Cable
7-3
PSR ink
Copper Plate
Copper
PrePreg.
Copper
CCL (core)
Copper
PrePreg.
Copper
Copper Plate
PSR ink