Acer 390 Series Service Manual page 192

20,23 INDEX#
20,23 TRK0#
20,23 WRTPRT#
20,23 RDATA#
20,23 DSKCHG#
8 SIO14M
SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
SA9
SA10
SA11
IRQ4
3,4,21 IRQ4
IRQ3
3,4,21 IRQ3
IOR#
3 IOR#
IOW#
3 IOW#
AEN
17 16BIT_AEN
SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
RSTDRV
3 RSTDRV
DACK#1
DACK#2
DACK#3
TC
3 TC
4,17 DACK#[1..3]
SLCT
PE
BUSY
ACK#
ERROR#
RI1#
+5V
PLACE BYPASS CAPS COLSE TO IC'S
C27 C31
SCD1U SCD1U
1 6 5 1 6 3 9 1
U17
V C V C V C V C
C C C C
11
INDEX#
12
TRK0#
13 PD0 66
WRTPRT#
14 PD1 67
RDATA#
15 PD2 68
DSKCHG#
17 PD3 69
CLOCKI
18 PD4 70
SA0
19 PD5 71
SA1
20 PD6 72
SA2
21 PD7 73
SA3
22 DRVDEN0 99
SA4
23 DRVDEN1/IRMODE 100
SA5
24 MTRO# 1
SA6
25 DS1# 2
SA7
26 DS0# 3
SA8
27 MTR1# 4
SA9
28 DIR# 6
SA10
29 STEP# 7
CS#/SA11
30 WDATA# 8
PCI_CLK/IRQ4
31 WGATE# 9
SER_IRQ/IRQ3
32 HDSEL# 10
IOR#
33 DRQ1 48
IOW#
34 DRQ2 46
AEN
35 DRQ3/P12 50
SD0
36 IOCHRDY 53
SD1
37 IRTX 60
SD2
38 KBDRST 61
SD3
40 A20M 62
SD4
41 64
SD5 INIT#
42 SLCTIN# 65
SD6
43 ALF# 80
SD7
44 STROBE# 81
RESET_DRV
45 RTS1#/SYSOP 85
DACK1#
47 RTS2#/SA12/IRQ5 96
DACK2#
49 R12#/P16/RQ12 90
DACK3#/P16
52 DCD1# 89
TC
54 DCD2#/P12/RQ11 92
KDAT
55 RXD1 82
KCLK
56 RXD2/IRRX 93
MDAT
57 TXD1 83
MCLKK
59 TXD2/IRTX 94
IRRX
75 DSR1# 84
SCLT
76 DSR2#/SA15/RQ10/SMI# 95
PE
77 DTR1# 87
BUSY
78 DTR2#/SA14/IRQ7 98
ACK#
79 CTS1# 86
V S V S V S V S
ERROR#
88 CTS2#/SA13/IRQ6 97
RI1#
S S S S
FDC37C672-1
3 9 5 8 7 4
5
NOTE: 1.The IR transmission use the standard UART2
TXD2 and RXD2 pins, NOT IRTX and IRRX pins.
2.The IRQ's are IRQ3-7 and IRQ10-12.
3.The DACK#'s are DACK#1-3.
4.The DRQ's are DRQ1-3.
C44 C65 C52 C28
SCD1U SCD1U SCD22U16V3ZY SCD22U16V3ZY
PPD[0..7]
RN2
PD0 1 8 PPD0
PD1 2 7 PPD1
PD2 3 6 PPD2
PD3 4 5 PPD3
SRN33
RN3
PD4 1 8 PPD4
PD5 2 7 PPD5
PD6 3 6 PPD6
PD7 4 5 PPD7
SRN33
IRSEL0 16
MTR0# 15,20
DR1# 23
DR0# 13,20
MTR1# 15,23
FDIR# 20,23
STEP# 20,23
WDATA# 20,23
DRQ[1..3]
WGATE# 20,23 DRQ[1..3]
HDSEL# 20,23
DRQ1
DRQ2
DRQ3 ACK#
IOCHRDY BUSY
IOCHRDY 3,4
PE
SLCT
INIT#
SLCTIN#
AUTOFD#
STROB# STROB#
RTS1#
IRQ5
1
IRQ5 3,4,21
R20
DCD1# 1KR3
IRQ11
IRQ11 3,4
SIN1 2 SLCTIN#
INIT#
IRRX 16
SOUT1 ERROR#
IRTX AUTOFD#
IRTX 16
DSR1#
IRQ10
IRQ10 3,4,21
DTR1#
IRQ7
IRQ7 3,4
CTS1#
IRQ6
IRQ6
3,4
DSR1#
RI1#
CTS1#
SIN1
DCD1#
R56
1 2
10KR3
R58
1 2
10KR3
R51
1 2
+5V
10KR3
R41
1 2
10KR3
R34
1 2
10KR3
PPD[0..7] 15,23
SD[0..7]
3,17,19,21 SD[0..7]
SA[0..11]
3 SA[0..11]
3,4
RN4
1 8 PACK#
PACK# 15,23
2 7 PBUSY
PBUSY 15,23
3 6 PPE
PPE 15,23
4 5 PSLCT
PSLCT
15,23
SRN33
R6
1 2 PSTROB#
PSTROB# 15,23
33R3
RN1
1 8 PSLCTIN#
PSLCTIN# 15,23
2 7 PINIT#
PINIT# 15,23
3 6 PERROR#
PERROR# 15,23
4 5 PAUTOFD#
PAUTOFD# 15,23
SRN33
C46
C47
U18
SCD33U16V3ZY
SCD047U 28
C1+
24
C1-
1
C2+
2
C2-
SOUT1 14 T1OUT 9
T1IN
RTS1# 13 T2OUT 10
T2IN
DTR1# 12 T3OUT 11
T3IN
20
21 RI_232# R2OUTB
19 R1IN 4
R1OUT
18 R2IN 5
R2OUT
17 R3IN 6
R3OUT
16 R4IN 7
R4OUT
15 R5IN 8
R5OUT
1 2 23
+5V FORCEON
1 2 22
R33
FORCEOFF#
21
100KR3 R27
INVALID#
0R3
MAX3243
ACER TAIPEI TAIWAN R.O.C
SUPER I/O SMC672 & RS232 MAX3243
Title
Size Document Number
A3
Date: August 12, 1997
+5V
C80
SC1U10V5KX
C253
VCC 26
SCD33U16V3ZY
V+ 27 C51
3
V-
SCD33U16V3ZY
PSOUT1# 15,23
PRTS1# 15,23
PDTR1#
15,23
PDSR1# 15,23
PRI1# 15,23
PCTS1#
15,23
PSIN1 15,23
PDCD1# 15,23
GND 25
390 ACERNOTE LIGHT
REV
96183 SD
Sheet 14 of 23