EFJohnson 764X User Manual
Page 97
8-10
November 1998
Part No. 001-7600-001
P2
P3
P1
P0
V-DN
V-UP
DN
UP
DS4
DS3
DS2
DS5
DS7
DS6
DS8
PWR
DS9
DS1
DS10
J1
DS1
1
2
R60
1
2
7
8
J1 (To Microphone)
1 - 8V
3 - AFO
5 - MICE
7 - GND
2 - Clone
4 - PTT
5 - MIC
7 - Hanger
R51
R52
C1
R61
C16
C73
C11
R53
R5
C18
C19
R7
R8
C13
R63
C21
C79
R64
R62
C14
C20
R6
R43
C17
C3
C2
R2
C67
C65
C66
C80
C62
C61
C60
C54
R71
R3
R65
R66
C77
C78
C72
C55
C53
R54
R67
C50
C49
R70
C64
C63
R19
C57
C52
C44
C22
C24
C56
C23
C59
C48
C25
C47
C6
R16
C7
C8
R12
C4
R18
R33
R34
R32
R35
R36
C40
C41
C42
R37
C5
R38
R56
C43
C71
C46
C70
C10
W2
R11
C36
R28
R25
R24
R27
R26
C38
R30
C39
R29
R31
R40
R39
R68
R58
C45
R42
R49
R41
C29
R20
R50
C82
C33
C30
R69
R57
C34
C32
R21
R22
C35
C58
C69
C27
C26
R59
C28
R55
R15
R4
C15
R1
R14
C12
W1
L3
IC3
IC2
D1
X1
IC1
R45
R44
R48
R46
R17
+
+
+
+
C9
C14
Q1
R47
+
+
C37
L1
Q4
D2
D3
D4
Q7
Q10
Q5
100
1
25
26
50
51
75
76
D5
J2
Q3
D6
Q6
1
2
39
40
J2 (To Main Unit)
40 - 8V
38 - CPU5V
36 - GND
34 - OPINT
32 - OPCS
30 - BUSY
28 - BEEPOUT
26 - TONE
24 - BEEP
22 - DTCS
20 - RFATT
18 - NOIS
16 - UNLK
14 - EXEN
12 - EXST
10 - DAST
8 - PLST
6 - VIN
4 - TEMP 2 - MIC
39 - 5V
37 - AFO
35 - SI
33 - OPT3
31 - OPT2
29 - OPT1
27 - OPV3
25 - OPV2
23 - OVP1
21 - PTT
19 - PTTIN
17 - DET
15 - PWON
13 - EXPTT
11 - DIMIN
9 - SO
7 - SCK
5 - SO
3 - LVIN 1 - GND
VHF/UHF FRONT UNIT BOARD TOP VIEW
VHF/UHF FRONT UNIT BOARD BOTTOM VIEW