1 2 3 4 5 6 7 8
VCC
R1
PINPOINT
S2 10K
SW-PB
A A
R2
Q2
2N2222A
2.2K
R3
4.7K
VCC VCC
C1
R4 R5
R6 R7
27K
10K 470K
470nF 100K
VDD Centre Bia sed, Left Lock, Right Momentary VCC
U10A
12V
Yellow LF442ACN
S3
3 NO
R8
1
C2 R9 R10 U6C 10R
2
220nF 1.5K 15K 6
L1 CNTL VDD
8 9
IO OI R11
All Metal
Transmit R12 VDD R13
Q1 VCC MM74HC4016J
S4a S4b
2.7M 20M U9A 5.1K
C3 2N2907A
R14
U6A 3 LM358N
C30
33nF R15
13 U10B 1 Q5
R16 R17 CNTL R18
Red 1 2 5 LF442ACN 2 2N2907
SW-SPDT SW-SPDT
IO OI 33K
7 U6D Q6 16V
47K 20k Discriminate 47K
100K
MM74HC4016J 6 12 220uF Q7
R19 CNTL
11 10 2N2222
8.2K IO OI
VCC 2N2222
U6B R20
MM74HC4016J VCC Audio_Out
5
CNTL R21
100R
R22 4 3 C4
IO OI NC R23
5.1K
220K 100R
MM74HC4016J C5
HP1
VCC C6
220nF
R24
C7 R25 Pinpoint Channel 100nF 80K
150pF 20K
U1A
B C8 R26 100nF B
Headphones
2 LM393N 1K R27
R59
1 GEB Drive Sensitivity
10K
100pF 3 150R
R28
GEB 20K C9
R29
2.2K
470K
LS1
22nF
C10 C11
R30 R31
R32 uP Trigger Drive GND
Threshold VCC
1K X3
VDD 100k 1M
22nF
Speaker
Q3
4.7uF R61
R33
VDD
U1B 100K
R34
5 LM393N 1M
7 Discriminate Drive R62
47K VCC 2N3904
6 100K
DISC R35 VCC
R36
Discriminate Resistive VDD
100K 20K
1K U7A X1 Audio_Osc.
R37
U5A 2 TL074J U7B
C12
100K R38
C13 13 1 6 TL074J U8B
R39 VCC R40 CNTL R41 A
220pF 1 2 3 7 5 LM393N
3.3K IO OI 47K B
470nF 5 7
20K
100K
MM74HC4016J 6 C14
22nF
C15
U5B C16 VCC
VDD
5
CNTL VDD
4 3
2.2 pF IO OI VCC
U3 220pF
MM74HC4016J C17
VCC 7 8
220nF
R42 OSC VDD
VDD
All Metal Channel
1 5
270K
R43 VDD BOOST VOUT
Green R44 6 C31
C18 LV
22K Discrim Sens. 2
5.1K R65 VCC CAP+
R64 R45 R46 R47 3 4 C32
GND CAP-
VCC 16V 16V
L2 100K 22nF
C19 C20 100K 100K 1K 220K LTC1044CP 220uF 220uF
Trimmer 10 turn R48 R49
Receive C21 1
C C
22nF U4 8
100k 1M R50
22nF
2 C22 C23
Q4 1K
6 4.7uF
R51
R52 NE5534P
3
White 5 220nF R53 1M
220nF
5.1K
R54 1K
VCC 2N3904 VCC
270K
VCC
Reactive
VDD
U7C X2 U8A
U5C 9 TL074J U7D 2 LM393N
C24 C25
R55
6 8 13 TL074J 1
R56 CNTL R57 C
8 9 10 14 3
IO OI 47K D
470nF 12 33nF
20K
100K
MM74HC4016J
U11 LM79M05CT VCC
1 3
IN OUT U5D
VDD VDD
12
GND
CNTL VDD
C33 11 10
C26 C36 C37 IO OI
16V
100nF 100nF 100nF
220uF MM74HC4016J C27
220nF
Discriminate Channel
12V U5 & U6 Decoupling
S1 U2 LM7812
V_Batt_SW 1 3
IN OUT
ON/OFF
GND NOTE: ALL 4016's have VCC to +5V and VDD to -5V.
B1
C35 C28 C34
12AA Cells C29
35V 100nF 16V
100nF
220uF 220uF
VCC
U9B
R58
6 LM358N
7
10K
5
VDD
D D
VDD
Title
Size Number Revision
A2
Date: 14/09/2003 Sheet of
File: D:\Altium\..\Coin Hawk.SchDoc Drawn By:
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