Service manual
alsa apparecchi medicali s.r.l.
cod. alsa: 801303
EXCELL mod. MCDS
Rev.: 4B.2 15/Mar/99
Approval:
Drawn by:
BIS_O95G - uC Sistema Dinamico
RESET
4.81V
D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7
A8
A9
A10
A11
A12
A8
A9
A10
A11
A12
A13
A14
A13
A14
A0
A1
A2
A3
A4
A5
A6
A7
ADC0
ADC0
VREGTS
ADC6
ADC5
PWRFM
ADC1
ADC2
ADC3
ADC4
BIPAUT
INTIIB
INTIIA
STADBY
AUDIC2
AUDIC1
AUDIC3
+15V
-15V
+15V
GND
GND
+5V
ADC2
ADC3
ADC4
ADC5
ADC6
MODMEN
ADC1
AVREF-
AVREF+
AVREF-
INTIIB
INTIIA
STADBY
BTMHND
BIPAUT
IRFLMAIRFLMB
DRVRF2
-15V
DRVRF2
VREGTS
I_ALIM
+5V
+15V
-15V
PWRAUD
PWRAUD
ADC7
MODMEN
TEMPRZ
IRFLMA
IRFLMB
M1
M2
M3
M1
M2
M3
BTMHNDRFENB1
RFENB1
TEMPRZ
PWM0
PWM0
PWRBLK
PWRBLK
AVREF+
FAUDIO +15V
+5VF
+5VF
+5VF
+5VF
+5VF
+5VF
+5VF
VDD +5VF
VSS
+5VF
+5VF
+5VF
+5VF
FAUDIO
AUDMAX
AUDMAX
IOVER
IOVER
CLKRF
CLKRF
+5VF
RDGAIN
RDGAIN
REMLEV
PWMAUX
AUDIC3
AUDIC2 AUDIC1
SAMPLE
SAMPLE
PWRFM
VOUTPK
PWRFB
FRQRF
FRQRF
INTA
INTA
+5VF
RSTUP2
RSTUP2
STADBY
INV
INV
EPLS
EPLS
GAL_F6
GAL_F6
SCLU
SDAU
SCLU
SDAU
VPKREF
ICLREF
VPKREF
ICLREF
VOUTPK
VOUTPK
PWM1
IRFMB
IRFMB
64K/32K
EPROM
SCLF
SDAF
SCL
SDA
A15
A15
SDAF
SCLF
TEST-POINT
SCL/SDA
BIPSET
+5VF
+5VF
BIPSET
BIPS
BIPS
AUDCTR
AUDCTR
LOAD
LOAD
PKLMT
PKLMT
+5VF
INTAUX
INTAUX
C8
J3
R1
XT1
J4
D0
3
Q0
2
D1
4
Q1
5
D2
7
Q2
6
D3
8
Q3
9
D4
13
Q4
12
D5
14
Q5
15
D6
17
Q6
16
D7
18
Q7
19
OC
1
G
11
GND
10
VCC
20
U3
A0
10
A1
9
A2
8
A3
7
A4
6
A5
5
A6
4
A7
3
A8
25
A9
24
A10
21
A11
23
A12
2
A13
26
A14
27
CE
20
OE
22
O0
11
O1
12
O2
13
O3
15
O4
16
O5
17
O6
18
O7
19
GND
14
VCC
28
VPP
1
U4
C5
C4
R4
CT
1
RST
2
CK
3
RST
8
VS
7
VREF
6
GND
4
VCC
5
U1
C17
R35
R5
R8
R16 R17 R18 R19R15R14
C18
C19
C20 C21 C22 C23
R65
C30
2 1
3
U7
R61
R60 R62
R63
R70
C1
C2
C6
C10
C7
C25
C28
D1
D2
D3
D4
Q1
J1
L1
C3
R3
C9
R26
R27
R56
R25
EA/VP
49
X1
35
RESET
15
INT0/P3.2
26
INT1/P3.3
27
T0
28
T1
29
P1.0/CT01
16
P1.1/CT11
17
P1.2/CT21
18
P1.3/CT31
19
P1.4/T2
20
P1.5/RT2
21
P1.6/SCL
22
P1.7/SDA
23
P0.0
57
P0.1
56
P0.2
55
P0.3
54
P0.4
53
P0.5
52
P0.6
51
P0.7
50
P2.0
39
P2.1
40
P2.2
41
P2.3
42
P2.4
43
P2.5
44
P2.6
45
P2.7
46
RD/P3.7
31
WR/P3.6
30
PSEN
47
ALE/P
48
TXD/P3.1
25
RXD/P3.0
24
X2
34
P4.0
7
P4.1
8
P4.2
9
P4.3
10
P4.4
11
P4.5
12
P4.6
13
P4.7
14
AVREF-
58
AVREF+
59
STADC
3
P5.0
1
P5.1
68
P5.2
67
P5.3
66
P5.4
65
P5.5
64
P5.6
63
P5.7
62
PWM0
4
PWM1
5
EW
6
AVSS
60
VCC
2
VSS
36
AVCC
61
VSS
37
U2
R13
R9
R11
C11
C13
C12
C14 C16
R24
R22
R12
R23
C15
R21
R20
R33
R31 R34 R45
R30 R44
J6
J5
R10
R55
R2
D5
F4
4
F3
3
F5
5
INV
6
M3
7
M2
8
O2
16
AUX
14
O1
15
F6
17
PKL
18
M1
9
F2
2
GND
10
VCC
20
F1
1
MODZ
13
LOAD
12
EPLS
11
OUT
19
U6
O0
1
AD0
6
SCL
3
SDA
4
AD1
5
O1
8
U8
R69R64
R37 R39R32 R41 R43 R46
J9
J10
C27
R66
R67
R68
R57
R73
R72
C31
C32
C29
L2
L3
R36 R38 R40
R42
R71
R54
R49
C26
R29
R50
R28
R51
R52
R53
C33
C34
CLK
10
Q1
9
Q2
7
Q3
6
Q4
5
Q5
3
Q6
2
Q7
4
Q8
13
Q11
15
Q10
14
Q9
12
Q12
1
RST
11
U5
1
3
5
7
9
11
13
15
17
19
21
23
25
2
4
6
8
10
12
14
16
18
20
22
24
26
J11
REMLEV
SETIME
LEDNP
GND
WAKBLK
TERM1
1
3
2
4
J7
SDA
SCL
II_CBUS
1
3
5
2
4
6
7
8
9
10
11
12
13
14
J12
TERM1
SETIME
GND
LEDNP
ANAUX
PWRFB
GND
TO POWER READ
TO uPII
1
3
2
4
J8
SDA
SCL
GND
+5VF
TO RF
DRIVER
10
9
8
7
6
5
4
3
2
1
R6
10
9
8
7
6
5
4
3
2
1
R7
+5VF
(9x10K)
(9x2K2)
INT1
P1.0
P1.2
P1.3
P1.4
P4.7
RST
RST
TEMPRZ
FRQRF
P1.3
M1
M2
M3
INV
EPLS
INT1
P1.0
IOVER
P1.2
P1.4
SCLU
SDAU
AUDMAX
P4.7
TO FILTER BOARD
R59
EPLS
1
3
5
2
4
6
J13
FROM POWER
SUPPLY BOARD
TO FILTER BOARD
SDA
SCL
R58
WAKBLK
1
3
5
2
4
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
J2
GND
ADC7
I_ALIM
C24
R48
R47
GND
G
H
d1