Olivetti d-Copia 18MF Service Manual page 197

K1 K5
X1
U2
K2
K6
K3 K7
U1
U3
K4 K8
Connector Pin No.
YC3
1
2
Connected
3
to the main
4
PWB
5
6
7
8
9
10
11
YC5
1
2
Connected
3
to the LCD
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
YC6
1
2
Connected
to the
speaker
Y104230-6
K9 K13
K17
X2
YC1
YC2
K10 K14 K18
K11 K15 K19
K12 K16 K20
Figure 2-3-19 Operator PWB silk-screen diagram
Signal I/O
SGND -
AUDIO I
+5 V I
FPRST I
PANTXD I
PANRXD O
PANRTS I
PANCTS O
+3.3 V I
CHECK I
TEMP O
SGND -
V5 O
V4 O
V3 O
V2 O
V1 O
CAP2+ O
CAP2- O
CAP1- O
CAP1+ O
CAP3- O
Vout -
Vss -
Vdd O
SI O
SCL O
A0 O
/RES O
/CS1 O
SGND -
OUT- O
OUT+ O
YC5
K23
U4
K24
K25
K21 K22
Ground
AUDIO signal
5 V DC power supply
FPRST signal
PANTXD signal
PANRXD signal
PANRTS signal
PANCTS signal
3.3 V DC power supply
CHECK signal
Temperature detection data
Ground
V5 signal
V4 signal
V3 signal
V2 signal
V1 signal
CAP2+ signal
CAP2- signal
CAP1- signal
CAP1+ signal
CAP3- signal
Ground
Ground
3.3 V DC power supply
SI signal
SCL signal
A0 signal
/RES signal
/CS1 signal
Ground
OUT- signal
OUT+ signal
Sevice Manual
YC3
YC6
K28 K31
K26
K32 U6
K29
K33
K30
K27
K34
Description
YC7
K35 K39 K45
K40
U7
K36
K43
K41
K37
K44
K38
K42
2-3-25