Lpt/Com Port - Clevo D400S Service Manual

Schematic Diagrams

LPT/COM Port

[22] SOUTA
[22] RTSA#
[22] DTRA
[22] DSRA#
[22] RIA#
[22] CTSA#
[22] SINA
[22] DCDA#
Sheet 23 of 35
VDD5 R225
R226
+5V
LPT/COM Port
B - 24 LPT/COM Port (71-D4000-D04)
VDD5
C260
0.1UF
28 27
C1+ V+
C247
0.1UF(K%) 24 3
C1- V-
C246
C268
1
C2+
C267 0.1UF(K%) 0.1UF(K%)
0.1UF(K%) 2
C2-
SOUTA 14 9
T1IN T1OUT
RTSA# 13 10
T2IN T2OUT
DTRA
12 11
T3IN T3OUT
COM1RI
20
R2OUTB
DSRA#
19 4
R1OUT R1IN
RIA#
18 5
R2OUT R2IN
CTSA#
17 6
R3OUT R3IN
SINA 16 7
R4OUT R4IN
DCDA# 15 8
R5OUT R5IN
23
FORCEON
100K 22
/FORCEOFF
25
GND
100K(R) 21
T /INVALID
U19
MAX3243
PD[0..7]
[22] PD[0..7]
RN3 FCA3216K4-221
PD1 4 5
3 6
PD2
2 7
PD3
1 8
PD4
4 5
PD5
3 6
PD6
2 7
PD7
1 8
PINIT# RN2 FCA3216K4-221
[22] PINIT#
CP6
8P4C-180P
CP1
8P4C-180P
PD0
RN1 FCA3216K4-221
PACK#
4 5
[22] PACK#
PBUSY
3 6
[22] PBUSY
PPE
2 7
[22] PPE
PSLCT
1 8
[22] PSLCT
PSTB#
4 5
[22] PSTB#
PATFD# 3 6
[22] PATFD#
2 7
PPERR# 1 8
[22] PPERR#
PSLIN#
[22] PSLIN#
RN4 FCA3216K4-221
JCOM1
RN10
12
1 8 5
2 7 9
3 6 4
4 5 8
3
7
FCA3216K4-121 2
6
1
13
RN9
1 8 COM1_DB9
2 7
3 6
4 5
FCA3216K4-121
CP3 CP2
8P4C-120P 8P4C-120P
CP5
8P4C-180P
CP4 C2
8P4C-180P 180P
R1 FCM1608K221
VDD3
R223
100K
PME#
PME# [19,22,24,25]
D
D24 Q1
COM1RI
A C G S 2N7002
1SS355
R224
100K
+5V
RP2
PSTB#
1 10
1 10
PATFD# PSLIN#
2 9
2 9
PD0 PD3
3 8
3 8
PD1 4 7 PD2
4 7
5 6 PINIT#
5 6
10P8R-4.7K
PPERR#
R2 2K
+5V
RP1
PACK#
1 10
1 10
PBUSY PD7
2 9
2 9
PPE PD6
3 8
3 8
PSLCT PD5
4 7
4 7
PD4
5 6
5 6
10P8R-4.7K
JPRT1
29
1
14
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
28
PRT_PORT