ISSUE
DRAWING NO.
DRAWING TITLE
DATE
Filename:
ECO No.
DESCRIPTION OF CHANGE
L943C7_5.1.SCH
A80/P80 Trig, RC5 & P80 Sig Det
Contact Engineer:
L943C7
9-Sep-2003
INITIALS
Printed:
7
8
Sheet
of
Notes:
Contact Tel:
(01223) 203 200
Mark Tweedale
A & R Cambridge Ltd.
Pembroke Avenue
Cambridge CB5 9PB
Waterbeach
23425
P80 SIG DETECT
PRE_OUT_L
PRE_OUT_R
0V(D)
Q0
9
Q1
7
Q2
6
Q3
5
Q4
3
Q5
2
Q6
4
Q7
13
MR
11
CP
10
Q8
12
Q9
14
Q10
15
Q11
1
IC701A
74HCT4040D
SO-16
0V(D)
INVERTER
12
13
14
IC700D
LM324D
SO-14
5
6
7
IC700B
LM324D
SO-14
3
2
1
4
11
IC700A
LM324D
SO-14
10
9
8
IC700C
LM324D
SO-14
+4.8V(D)_2
+4.8V(D)_2
0V(D)
0V(D)
0V(D)
+4.8V(D)
C718
100UF
25V
YK
R701
100K
0W125
0805
R700
100K
0W125
0805
+1.6V(D)
C716
100UF
25V
YK
R704
100K
0W125
0805
+1.6V(D)
(NF ON A80)
C704
100N
50V
0805
0V(D)
R709
33K
0W125
0805
R710
33K
0W125
0805
C702
100N
50V
0805
C703
100N
50V
0805
+1.6V(D)
+1.6V(D)
1
2
3
CON702
HARWIN
M20-973
AUTO-OFF
DELAY SET
Pins 1&2: ~12 mins (default)
Pins 2&3: ~45 mins
SET SENSITIVITY
LATCH & COUNTER RESET
R722
680R
0W125
0805
R703
100K
0W125
0805
R702
100K
0W125
0805
Jumper Fitted = ~0.5mVrms (default);
0V_PREOUT
Q727
Q718
Q719
Q714
P80 TRIGGER IN
TRIGGER OUT
TR701
BC849B
SOT-23
R727
10K
0W125
0805
TR700
BD179
TO-126
C720
10UF
50V
YK
+45V_L
C701
100N
50V
0805
0V_CHASS
L700
70R@100MHz
R715
100R
0W125
0805
DZ700
BZX84C
15V
SOT-23
GND1
NC1
GND2
NC2
SKT700
HOSIDEN HSJ
Vout=0.82Vin
R728
10K
0W125
0805
C710
100P
100V
0805
C700
100N
50V
0805
~13.5V @ 30mA max
R738
2K2
0W125
0805
0V(D)
C717
100UF
25V
YK
R705
100K
0W125
0805
D702
BAV99 SOT-23
D703
BAV99 SOT-23
SET SENSITIVITY
R723
680R
0W125
0805
P80 DELAYED OFF
0.38Hz_CLK
0V(D)
+4.8V(D)
+45V_L
+4.8V(D)
0V(D)
+45V_L
0V_CHASS
0V_CHASS
REMOTE_P
TRIG_IN
C709
100N
50V
0805
VCC
16
GND
8
IC701B
74HCT4040D
SO-16
C708
100N
50V
0805
0V(D)
0V(D)
0V(D)
+4.8V(D)_2
Q713
(NF ON A80)
Jumper Not Fitted = ~2mVrms
Q724
Q715
Q709
Power-On Reset
*RESET
C711
100P
100V
0805
C712
100P
100V
0805
R735
47R
0W125
0805
ITEM700
3
Con Jumper Socket 0.1IN Gold Blue
8K004
R725
22K
0W125
0805
R724
22K
0W125
0805
C721
220UF
16V
YK
C715
100UF
25V
YK
+4.8V(D)_2
R718
1K0
0W125
0805
R719
1K0
0W125
0805
R720
1K0
0W125
0805
R736
3K3
0W125
0805
R737
2K2
0W125
0805
LATCH
+4.8V(D)_2
CLK
3
D
2
SD
4
RD
1
Q
5
Q
6
IC703A
74HCT74D
SO-14
CLK
11
D
12
SD
10
RD
13
Q
9
Q
8
IC703B
74HCT74D
SO-14
VCC
14
GND
7
IC703C
74HCT74D
SO-14
TR702
MMUN2111LT1
SOT-23
+4.8V(D)_2
R733
3K3
0W125
0805
0V(D)
ANNOTATION
NF ON A80
D700
BAV99 SOT-23
D701
BAV99 SOT-23
R726
22R
0W125
0805
0.38Hz_CLK
P708
P707
P701
P704
P702
P710
P712
P705
P713
P711
P714
P724
0V(D)
R706
0R0
0W125
0805
C705
100N
50V
0805
NF ON P80
REMOTE_N
<-------- Vin
D704
BAT54S
SOT-23
+4.8V(D)
1
2
R707
4K7
0W125
0805
(NF ON A80)
T
O
SHEET
6
C706
100N
50V
0805
R708
100K
0W125
0805
DZ701
BZX84C
4V7
SOT-23
1
2
CON701
HARWIN
M20-973
1
2
CON700
HARWIN
M20-973
R713
100K
0W125
0805
R711
22K
0W125
0805
R712
22K
0W125
0805
R716
330R
0W125
0805
R717
330R
0W125
0805
Jumper Fitted = ~0.5mVrms (default);
Jumper Not Fitted = ~2mVrms
R714
0R0
0W125
0805
R721
0R0
0W125
0805
0V(D)
NF
P706
P700
P703
P709
P715
P716
03_E116
TGP
NO CHANGE TO THIS SHEET
2.1
17 APR 03
03_E120
TGP
13 May 03
LEDs, BIAS & DOCUMENTATION CHANGE
3.0
03_E147
MJT
23 May 03
None to this sheet. PCB change.
4.0
03_E230
MJT
04 Aug 03
None to this sheet. Display snapoff fixing holes reduced to 3.2mm
5.0
A80
03_E264
MJT
09 Sept 03
None to this sheet. Remove EMC can from around IEC inlet.
5.1
