Ultrasound Technologies PD1 series, Service Manual

Page: 36 / 75

1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
A B C D
A B C D
R5
47R
J2
1 2 3
SK1
1 3 2 4
+
C7 1u0F
ZM33064Z
U4
1
IN
3
OUT
ultratec 1999 Copyright
Drg No:
Date
ECN
Issue
Drawn:
Ultrasound Technologies Ltd
Gwent. NP6 6BZ. UK Itton, Chepstow Foresters House
Date:
of
Sheet
Name:
PD1PLUS
6/11/00
12
6:54:10 PM
R32 22K
R3 100R
U1
SI7661
2
CAP+
4
CAP-
3
GND
8
V1+
5
VO-
C10
470uF
VR1 100K
J3
1 2
J1
1 2
LM386M
U3
7
1
8
2
M
3
P
6 4
5
+
C5
10uF
+
C15 10uF
+
C16 10uF
R6
10R
Q1
RFD8P05SM
2
D
1
G
3
S
U2
CD4013
11
CLK
9
D
10
RESET
8
SET
12
Q
13
Q
U2
CD4013
3
CLK
5
D
4
RESET
6
SET
2
Q
1
Q
R7 2K2
+
C2 100uF
+
C12
100uF
+
C11 100uF
+
C9 100uF
R4 1M
R2 1M
R1 1M
R8 4K7
C13 10nF
C4 10nF
D1
10BQ040
21
C3 1uF
J4
1 2 3 4
C6 100nF
C1 100nF
C14
100nF
C17 100nF
C8 100nF
BatteryCondition {02}
UnitShutDown {02}
AudioComplex {02}
182
Jun 00
4
Loudspeaker
Nov 99
3
178 176
Sept 99
2
June 98
1
PD1 Plus Audio Circuit
Volume Control
Connector Power
Transducer
Unit On / Off control
Battery Input