Intermec EasyCoder PC41 Service Manual page 63

J13
Intermec EasyCoder PC41—Service Manual
+5V
F1
PTC FUSE
J15
RN5 22ohm
1
1 8
2
2 7
3
3 6
4
4 5
5
1 8
6
2 7
7
3 6
8
RN3 22ohm 4 5
9
1 8
10
2 7 RN6 22ohm
11
3 6
12
4 5
13
1 8
14
2 7
15
3 6
16
4 5
17
18
RN4 22ohm
19
20
21
+5V
22
23
24
25
26
27
28
29
30
31
32
33
34
35 PP95
36
MTG1
MTG2
PP100
PP238 PP91
CHASSIS
+5V
PARALLEL
PORT
+5V
PP107
PP115
R9
22ohm
0603
C31
150P
0603
+5V
R10
1K
0603
U15C
5 6
74HC14
PP137
PP22
PP28
U16F
13 12
SPARES
74HC05
R11
1K
0603
Parallel Port (IEEE1284) & Spares
+5V VCC
+5V
C1 C2 C3 C4
150P/50V 150P/50V 150P/50V 150P/50V
0603 0603 0603 0603
1
6 1
2 2
7 3
3 4
8
4 1
9 2
5 3
4
PP20
C5 C6 C7
150P/50V 150P/50V 150P/50V
0603 0603 0603
SERIAL
PORT
Serial Port (RS-232)
3
4
7
8
13
14
17
18
+5V
1
PARCS*
11
RN8
RN7
1K
1K 3
4
7
8
13
14
17
18
1
PARCS*
11
+5V +5V
C28
.1U/25V
0603
PP36
U7B
PP163
U15B U6B
3 4 4 12 9
D Q
6
74HC14
5 11
CLK
74HC08 8
Q
U15F
74HC74
13 12
1284_ACT
74HC14
U15E U15D
11 10 9 8
H_BUSY
U7A
74HC14 74HC14
2 5
D Q
3
PP34 CLK
6
Q
+5V
74HC74
R4 C29 +5V
3K3 .1U/25V
0603 U16B 0603
4 3
PACK*
74HC05
R5
PP197
3K3 U6C
0603 U16C 10
6 5 8
9
P_BUSY
74HC05
74HC08
PP32
+5V
R6 R7 R8
3K3 3K3 3K3
0603 0603 0603
U16A
2 1
XFLAG
74HC05
PP17
U16D
8 9
ACK_D_REQ
74HC05
PP124
U16E
10 11
DAT_AVAIL
74HC05
PP131
INIT
PP23
U15A U6D
1 2 12 U6A
11 1
13 3
74HC14
2
74HC08
74HC08
PARCS*
C32
RESET*
+5V +5V +5V .1U/25V
0603
C33 150P C37 .1U
0603 0603
PP15
C34 150P C38 .1U
0603 0603
C35 150P C39 .1U
0603 0603
C36 150P C40 .1U
0603 0603
+5V
C8 C9
+ +
1uF/25V 1uF/25V
9
0805 0805
11
PP31
15
PP29
RN1 220ohm
8 2
7 1
6
24
5 20
8 7
7 3
6 23
5 16
PP35
PP21
RN2 220ohm
8
Chapter 7—Main Board
U8
D0
2
D0 Q0
D1
5
D1 Q1
D2
6
D2 Q2
D3
9
D3 Q3
D4
12
D4 Q4
D5
15
D5 Q5
16 D6
D6 Q6
19 D7
D7 Q7
OC
CLK
74AHCT374
U9
2 D8
D0 Q0
5 D9
D1 Q1
6 D10
D2 Q2
9 D11
D3 Q3
12 D12
D4 Q4
D13
15
D5 Q5
D14
16
D6 Q6
D15
19
D7 Q7
OC
CLK
74AHCT374
+5V
C30
.1U/25V
0603
PP18
PARINT*
D[15..0]
PP19
PP211
U13 ADM208E
PP37
+
C10
1uF/25V
10
VCC C1+
0805
12
C1- PP24
V+
PP25
13
C2+ +
C11
14
V- C2-
1uF/25V
0805
PP27
5
TXD
T1OUT T1IN
18
DTR*
T2OUT T2IN
19
RTS
T3OUT T3IN
21
PIN11
T4OUT T4IN
6
RXD
R1IN R1OUT
4
CTS*
R2IN R2OUT
22
AUX*
R3IN R3OUT
17
R4IN R4OUT PP33
GND
CTS*
PP191
57