Respironics bilichek - Page 24

BiliChek Service Manual
24
1014988
Charger Base PCB Schematic (continued)
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
GN1
RD1
IRQ*
+5V +5V
+5V
+5V
+V
+V
+5V
+5V
+5V
+3V +1.7V +0.5V
+5V
GND
+V
MR2*
MR1*
RD2
GN2
OT2*
RST*
PF2*
MM2*
CM2*
OT1*
PF1*
MM1*
CM1*
RED1
GREEN1
GREEN2
RED2
Title
Size Document Number Re v
Date: Sheet
of
S1014726
0
BILICHEK CHARGER PCA
13Wednesday, October 30, 2002
8.2v
1/4 W
1%
1%
THIS SCHEMATIC WAS CREATED
USING ORCAD TO REPLACE THE
SCHEMATIC DEVELOPED USING
SCHEMA. THIS SCHEMATIC WAS
NOT USED FOR BOARD LAYOUT.
1%
1% 1%
1%
REV CN DESCRIPTION DATE DRAWN BY CHECKED BY APPROVED BY
0 EDMS INITIAL, WAS SPECTRX 1001062 6/2/03 C.HALLWIRTH EDMS E DMS
RESPIRONICS
NOTES:
1. - INDICATES ITEMS NOT INSTALLED.
*
*
*
R16
2.05K
R36 10K
C14
.1uF
Y1
4Mhz
C2
.1uF
C9
18pF
D12
MMSZ5237BT1
D7
P6SMB15AT3
R17
1.05K
R42
10K
A1
TPS7350
IN1
3
IN2
4
EN
2
GND
1
RST
8
OUT1
5
OUT2
6
SENSE
7
C18
.1uF
C17
.1uF
J2
1
2
3
4
5
6
7
8
9
10
R43
10M
R41
10K
R37 10K
C4
.1uF
R51
10K
+ C3
10uF
R53
9.53K
R35 10K
+ C1
10uF
R40 10K
R49
68
R50 10K
D8
MRA4003
C10
18pF
U2
MM74HC541
A1
2
A2
3
A3
4
A4
5
A5
6
A6
7
A7
8
A8
9
G1
1
G2
19
Y1
18
Y2
17
Y3
16
Y4
15
Y5
14
Y6
13
Y7
12
Y8
11
+5V
20
U1
68HC05J1
OSC1
1
PA7
11
PA6
12
PA5
13
PA4
14
PA3
15
PA2
16
PA1
17
PA0
18
PB5
3
PB4
4
PB3
5
PB2
6
PB1
7
PB0
8
OSC2
2
RESET
20
IRQ
19
Vdd
9
Vss
10
R52
15K
R54
1.05K
J1
COAX POWER
1
2
3
J3
1
2
3
4
5
6
7
8
9
10
R38
10K
R39
10K
R34 1K