EFJohnson 7780 Two-Way Radio User Manual


 
SCHEMATIC DIAGRAMS AND COMPONENT LAYOUTS
8-10
November 1999
Part No. 001-7780-500
DS1
DS3
DS4
DS2
1
(PHON)
2
(STR)
3
(HOME)
SYS
(RCL)
GRP
(CLR)
6
5
4
7
(S.A/D)
89
SCAN
(SND)
#
0
( )
*
J1
HC5
HC6
HC7
HC8
1
2
20
19
Q1
HC11
HC12
HC10
HC9
SPE
SP
GND
GND
L5V
BKLED
GND
GND
MICE
MIC
HC2
R3
R5
HC4
HC3
R4
R12
R11
R10
R2
HC1
C5
GND
KEYS0
KEYS1
KEYS2
KEYS3
KEYR0
KEYR1
KEYR2
KEYR3
GND
C3
C4
C2
R1
C1
SPEAKER
MICROPHONE
10-KEY BOARD FRONT VIEW
10-KEY BOARD BACK VIEW