EFJohnson SMARTZONE 7780 - Manual (Page 110)

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)
8 9
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