EFJohnson 7780 Two-Way Radio User Manual


 
SCHEMATIC DIAGRAMS AND COMPONENT LAYOUTS
8-2
November 1999
Part No. 001-7780-500
C7
C6
C4
C1
Q4
C10
C25
C9
C13
C14
HR1
C35
L2
C18
R9
C23
R21
D3
R16
R15
R14
HC1
R22
C30
C33
R24
R28R29
R27
C11
R4
Q2
C12
R5
R19
C20
C21
R17
R18
C29
GND
GND
RF5C
RF5V
CPV
VCOV
VCC
IC3
C15
Q3
X1
C24
C26
R23
R13
R20
C8
C3
C31
C2
HC2
C5
R2
IC1
IC2
D2
Q1
C19
HW1
R8
C16
C17
R7
W/N
FIOUT
GND
C32
IF5V
FIIN
R5V
GND
IFIN
GND
XTAL
RSSI
NOISE
DET
SQLC
R12
R26
R25
IF BOARD TOP VIEW
IF BOARD BOTTOM VIEW