Nellcor NPB-190 Service Manual page 82

PICPWR PICPWR
+
C92 C101
0.1U 47U
PICINT
10V
RST-L
7343 EXCOM-SHTDWN
PICEN_L
R95
Y3
9.83MHZ
1 1 2 2 PICPWR
HC49S
I187
Y4
9.83MHZ R81
1 4 4 332
ATP-SM
C98 C99
R80
22P 22P
10.0K
C93
0.1U
VDD
I199
R99
6.49K +
FREQ 5
+
6
-
R93
-
4.99K
7
I200
R100
R98
10.0K
150K
PWM_VOL
+
C96
1.0U
20V
035191
VDD
RP3
1 8
PWR_STATUS 2 7
I189
3 6
4 5
10K
U22 N190PIC
2 2 21 21 PWRIND-L
RA0 RB0
3 3 RB1 22 22
RA1
4 4 23 23 BATT_CHECK
RA2 RB2
5 5 24 24 PWR_CTRL
RA3 RB3
6 6 25 25 PWR_BTN
RA4 RB4
7 7 RB5 26 26 AC_OK-L
RA5
27 27 LOW_BATT-L
RB6
RB7 28 28 CRIT_BATT-L
9 9 11 11
OSC1 RC0
10 100 12 12 R104 100
OSC2 RC1
RC2 13 13 PWM_VOL
I186
14 14 SPI_SCK
RC3
20 20 15 15 SPI_MOSI
VDD RC4
1 1 16 16 SPI_MISO
MCLR RC5
8 8 RC6 17 17 NURSE-CALL
VSS1
19 19 18 18 FREQ
VSS2 RC7
PIC16C62
I190 I194 I196
PICPWR
I191 I195
CR20
1N914S
I188
IIC_SCK
EEPEN
VDD
U39 I95
R132
TLC27L2
8 1.00K C105 C110
+ + +
7 47U 47U
10V 10V
4 7343 7343
U26 TH
1 1 6 6
VCC GND1
2 2 VO1 5 5
VI2
4 4 VO2 8 8
VI4
VDD 7 3 3
N.C. GND2
I235
I236 TDA7052A
U39
+
TLC27L2 R133
1.00K
3 8
+ SPEAKER DRIVER
1
R102 2
-
100K 4
-
U34
PORTSEL-L 5
4
6
74HC02S
PICPWR
Y1
32.768KHZ
4 4 1 1
ECPSM29T
I197 I198
C100 C97
33P 33P
I204 UPPER MEMORY - 2000 - 3FFF
U28
1 VDD
3
2 U23
6 6 PWR 8 8
SCL
VDD 74HC08S
IICDATA 5 5
SDA
1 1 C87
A0
2 2 0.1U
A1
R96 3 3
A2
10.0K
I201
7 7 GND 4 4
WP
AT24C64S
C120 C121
+
C88
47U 47U LOWER MEMORY - 0000 - 1FFF
Z5U
10V 10V
0.1U
7343 7343 VDD
U24
6 6 PWR 8 8
SCL
IICDATA 5 5
SDA
J3 1 1 C84
A0
1 1 2 2 0.1U
A1
2 2 3 3
A2
CON_2R 7 7 GND 4 4
WP
AT24C64S
VDD
I165
5 5
WR-L 1 1
4 4
2 2
FLASHWR-L
U40
I94 3 3 TC7S32F
U32 32KX8
ADDR0 10 10 28
A0 PWR
ADDR1 9 9
A1
SRAMPWR
ADDR2 8 8
A2
ADDR3 7 7
A3
ADDR4 6 6
A4
ADDR5 5 5 O0 11 AD0
A5
ADDR6 4 4 12 AD1
A6 O1
ADDR7 3 3 13 AD2
A7 O2
ADDR8 25 25 15 AD3
A8 O3
ADDR9 24 24 16 AD4
A9 O4
ADDR10 21 21 17 AD5
A10 O5
TP37 ADDR11 23 23 18 AD6
A11 O6
ADDR12 2 2 19 AD7
A12 O7
ADDR13 26 26
A13
1 1
A14
WR-L 27
WE
R79 RD-L 22
OE
10.0K RAMEN-L 20 20 14
CE GND
55257S
8KX8
64KX16
FLASH
U31
ADDR1 24 24 PWR 44 44 FLASHPWR
A0
ADDR2 25 25
A1
ADDR3 26 26
A2
21 21
ADDR4 27 27 AD0
A3 D0
ADDR5 28 28 20 20 AD1
A4 D1
ADDR6 29 29 19 19 AD2
A5 D2
ADDR7 30 30 18 18 AD3
A6 D3
ADDR8 31 31 17 17 AD4
A7 D4
ADDR9 32 32 16 16 AD5
A8 D5
ADDR10 35 35 15 15 AD6
A9 D6
8KX8 ADDR11 36 36 14 14 AD7
A10 D7
ADDR12 37 37 11 11 AD8
A11 D8
I193 ADDR13 38 38 10 10 AD9
A12 D9
ADDR14 39 39 9 9 AD10
A13 D10
ADDR15 40 40 8 8 AD11
A14 D11
41 41 7 7 AD12
A15 D12
6 6 AD13
D13
FLASHWR-L 43 43 5 5 AD14
WE D14
R91 3 3 4 4 AD15
CE D15
10.0K RD-L 22 22
OE
12 12
GND1
GND2 34 34
I225
R130
221
ROMEN-L
PIC and Speaker Schematic Diagram (Sheet 7 of 10)
VDD
I202
28
C103
+
47U C85 11
10V 0.1U 12
7343 13
15
16
17
18
19
27
22
14
VDD
I203
+
C86 C104
0.1U 47U
10V
7343
Figure S-9
S-23