©1999 Hamtronics, Inc.; Hilton NY; USA. All rights reserved. Hamtronics is a registered trademark. Revised: 1/28/00
- Page 11 -
S1
PLAYBACK
LATCH
A0
A1
A2
A3
A4
A5
A6
A7
CE
PD
P / R
EOM
TEST
1
2
3
4
5
6
9
10
24
23
27
25
26
S2
RECORD
GND PULSE TO START PLAYBACK
U1
END PLAYBACK
GND PULSE TO
GND TO
+
_
E1
AUDIO
OUTPUT
VccD
28
VccA
16
VssD
VssA
12
13
AUX IN
11
ANA IN
20
ANA OUT
21
AF INPUT
AF INPUT REF
17
18
AF OUT+
AF OUT-
14
15
X
DIGITAL
RECORDER
N/C
Q1
E3
KEY
Q2
SWITCH
+
_
AGC
19
R11
R12
Z1
C3
C4
C5
R7
C6
C8
C9
E5
E6
C11
R8
R9
R10
C10
C12
C2
R4 47K
R5 47K
CR2
C1
R1
R2
RECORD
DVR-3 DIGITAL VOICE RECORDER MODULE
150K
4.7K
2N4126
BEAD
0.1UF
0.1UF
.001UF
0.1UF
15K
0.1UF
0.1UF
0.1UF
0.1UF
0.1UF
1UF
4.7UF
510K
22K
47K
AUDIO OUTPUT
ADJUST
R3 47K
47K
47K
E4
+
_
POWER FROM
C13
47UF
2N3904
1N4148
+5VDC BUS ON
COR-5 BOARD
+5VDC
PLAYBACK
Q3
RECORD
CONTROL
100K
R14
47K
R13
2N3904
SWITCH
2N3904
SWITCH
SWITCH
2N4126
CONTROL
R6
100K
RCVR
AUDIO
Q4
Q5
E2
(MARKED TRIP ON BOARD)
