Blease 8500 - Page 68

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Title
Number RevisionSize
A4
Date: 4-Feb-2002 Sheet of
File: \\Cad 3\c\1 JONS ARCHIVE\8500archive\circuit diagrams\10110190-3\10100190-3.ddbDrawn By:
V12
1
V5
2
V+
3
V15
14
LBO
4
LBI
5
FB
6
SHDN
7
REF
8
GND
9
SGND
10
CS
11
EXTH
13
EXTL
12
U38
MAX773
FET3
NDT451N
R1
G
S
D
D3
MBRS340T3
L1
R2
R56
C2
C19
C18
GND
47uF 20V
0.1uF
0.1uF
GND
150uH
IN
1
OUT
8
GND
2
GND
3
SET
5
GND
7
GND
6
OFF
4
U39
MAX604
C8
C17
0.1uF
GND
COREVDD
COREVDD
3.3V SUPPLY FOR LCD CONTROLLER
LOW ESR
FET2
2N7002
R57
GND
IN
GND
OUT
U40 7812CT
C20
C21
220uF 35V
GND
IN
1
OUT
8
GND
2
GND
3
SET
5
GND
7
GND
6
OFF
4
U41
MAX603
C7
VCC
GND
C1
VCC
GND
10uF 16V
10uF 25V
10uF 16V
C26
10uF 16V
C22
0.1uF
GND
C23
0.1uF
220uF 35V
C24
0.1uF
R60
C25
0.1uF
24V DC SUPPLY GENERATOR
5V DC SUPPLY
470R
8K2
0R22
8K2
R79
10
9
8
7
6
5
4
3
2
1
J12
10 WAY DIL HEADER
5
2
3
4
1
SW1A
1
2
3
4
5
SW1B
PL1
R80
R81
GND
BATLOW
EP1
L3
7uH
+12V
1615
1413
1211
109
87
65
43
21
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
J16
34 WAY HEADER
MS30
MS31
MS28
MS32
MS34
MS27
MS29
MS30
MS31
MS28
MS32
MS34
MS27
MS29
MS33
MS33
PSU+
PSU+PSU+
PWRFAIL
PWRFAIL
PWRFAIL
EXPVOL
DRVPRS
DRVPRS
FLWPRS
FLWPRS
PATPRS
PATPRS
BATONCHG
BATONCHG
BATONCHG
MODE SWITCHMODE SWITCH
AGND
GND GND
422RxD 422RxD#
422DTR#
422RxD 422RxD#
422DTR
422DTR#
GND 422DTR
LIMSET O/P
LIMSET O/P
PRS_OVRLD O/P
PRS_OVRLD O/P
APNOEA O/P
APNOEA O/P
PSU+ PSU+
422CTS 422CTS#
422TxD 422TxD#
422CTS
422TxD 422TxD#
422CTS#
VREGS
EP2 EP3 EP4
EARTH POINTS
SUPPLY CONNECTIONS FROM J16
5
4
3
2
1
6
JP3
ARW 6 WAY HEADER
LED1
BAT ON LED
LED2
BAT LOW
PWR FAIL
LED3
IN
4
GND
3
OUT
5
0N/OFF
2
ADJ
1
U42
LM2941
R82
R83
2K9
1K
C62
47uF 20V
GND
LOW ESR
2
1
3
J1
INVERTER SUPPLY
LCDPWR
GND
LCDPWR
BLEASE DISPLAY INTERFACE
FRESHGAS
FRESHGAS
10K
24V DC
24V DC
EXPVOL
TMPSNS
TMPSNS
BATONCHG
PSU+
10100190 issue 1
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