Motorola CP040 Detailed Service Manual page 171

Allocation of Schematics and Circuit Boards
1.2 Six Layer Circuit Board
The main PCB is a 6-layer circuit board, the copper steps are in the layer sequence shown below.
1.3 Speaker and Microphone Schematic
1.3.1 Speaker and Microphone Parts List
MK1
SP1
Reference Motorola Part
Designator
MK1 5080258E16
SP1 5005679X04
SIDE 1
LAYER 1 (L1)
LAYER 2 (L2)
LAYER 3 (L3)
LAYER 4 (L4)
LAYER 5 (L5)
LAYER 6 (L6)
SIDE 2
1
MATES WITH J470 ON
RADIO BOARD
2
1
MATES WITH J491 ON
RADIO BOARD
2
No.
Microphone, electret
Speaker assembly with connector
INNER LAYERS
Description
3-3