User manual

Page 45
Document No. 80-15151 Issue 6 HEBER LTD
Figure 8 - Schematic Sheet 8 - Power Supply
+12V _IN
F1
3.15A F 20*5MM
R34
22K
GND
GND
VCC
METER_SENSE2
TP6
PA D
PP1 2
PP
SENSE
PP8
PP
R35
47K 2%
-12V
© HEBER LTD, 1996-2002
56-15084 11r2
PLUTO 5 - PO WER SUPPL Y
HEBER LTD.
Belvedere Mill
Chalfor d, Stroud, GL6 8NT
Tel: [phone]
Fax: [phone]
A3
813Tuesday , August 12, 2003
Title
Size Document Number Rev
Date: Sheet
of
R125
1K
D3
SA15
U15
LM7805
VI
GND
VO
TP7
PA D
VMETER+
GND
PP9
PP
VCC
R36
47K 2%
GND
R126
120R
TP8
PA D
VMOT+
MPX_REF2
PP1 1
PP
Thresho ld 2 - Lamp s hort cct.
REGULATED +5V
GND
+12V
R37
47K 2%
C9
47p
GND
+12V
R40
4K7
PP1 0
PP
+
-
U16D
LM339
11
10
13
MPX_REF1
R40 revisions:
3k3 -> 10k Feb 1998
10k -> 4k7 Jul 2003
PO RTA [ 0. .7 ]
MPX_ REF1 11
VMPX+
VCC
D20
SA 15
MPX_ REF2 11
C10
47p
VSS
LC1
EMC FIL TER
1 3
2
PP13
PP
METER DETECTION
R124
47K 2%
R38
47K 2%
R33
47R
D21
1N4148
POWER FAIL DETECTION
P3
HDR 6W A MP MTA - 1 56
1
2
3
4
5
6
C7
1/50
SFX_CLK 3
+
-
U16C
LM339
9
8
14
VREF 10
GND
+12V_IN
MPX CURRENT
+12V
Thresho ld 1 - Lamp p resent
TP5
PA D
METER_SENSE
GND
C8
1/50
VCC
GND
PORTA 7
R39
47K 2%
GND
PORTA 6
MPX_GND
GND
+
-
U16A
LM339
5
4
2
312
POWER IN
D2
SA 5
PO RTA [0 . .7 ]2,5,9,10
+12V_IN
NMI-2
+12V
GND
SFX_CLK
+12V
LC2
EMC FIL TER
1 3
2
D1
UF4002
R127
22K
+
-
U16B
LM339
7
6
1
MPX_GND
-12V
GND