Panasonic UF-490 Service Manual page 270

A
002:D3
pBUSOUT
1
DATA[8-1]
002:D3
DATA[8-1]
pSELECT
002:D3 pSELECT
nFAULT
002:D3 nFAULT
pBUSY
002:D3
pBUSY
nACK
002:D3
nACK
pPERR
002:D3
pPERR
nINIT
002:D4 nINIT
nSTRBE
002:D3
nSTRBE
nAUTFD
002:D3
nAUTFD
nSELIN
002:D3
nSELIN
2
TONER/PAPER SENSOR
B6B-PH-K-M
+5V
60mA(LED)
6
CN15
+5V
5
3
CN15
TONER
4
TSENCONT CN15
To
Toner Sensor
and
Paper Sensor
3
CN15
GND
2
CN15
GND
GND
4
1
pPCHK1 CN15
270
B
+3.3V
+5V
+3.3V_side
0
25V
0.1uF
NF29 0.0625W
C161
25V
0.1uF
C163
Vcc-cable 25V
0.1uF
C162
0.1uF 25V
42 31 18 7
C164
48 1
DIR HD
DATA[1] 8 41
B1
A1
DATA[2] 9 40
B2
A2
DATA[3] 11 38
B3
A3
DATA[4] 12 37
B4
A4
DATA[5] 13 36
B5
A5
DATA[6] 14 35
B6
A6
DATA[7] 16 33
B7
A7
DATA[8] 17 IC28 32
A8 B8
2 47
A9 Y9
3 46
A10 Y10
4 45
A11 Y11
5 44
A12 Y12
6 43
A13 Y13
20 29
A14 C14
21 28
A15 C15
22 27
A16 C16
23 26
A17 C17
19 30
PLHin PLH
+5V
24 25
HLH HLHin
TL68
GND
74LVX161284MTD 39 34 15 10
GND
GND
+3.3V
R272 62.5mW
TONER 001:A3
100
GND
R278
3
0
R279
62.5mW
2
2SC2412K
TSENCONT 002:D2
Q44
1.5K
560
62.5mW
1
R280
47K
62.5mW
+3.3V
GND
R271 62.5mW
nPCHK1 001:A3
100
GND
C
+5V_side
Centronics i/f
+5V
GND
62.5mW
R204
100
62.5mW
R205
100
D15
1 20
2 19
3 18
4 17
GND
5 16
6 15
GND
7 14
8 13
9 12
10 11
74F1071MTC
#
Toner SENSOR
#:Not Mounted
001:D3 nUSBENB
Toner SENSOR LED ON/OFF control
High = LED ON
Low = LED OFF
002:A3 SCANENB
002:A1
002:A1
Paper Check SENSOR
D
JW45
JW54
JW46
JW55
JW47
JW56
JW48
JW57
JW49 13
JW58 32
JW50 11
JW59 10
JW51 12
JW60 31
JW52
JW61 14
JW53 36
18
15
33
34
35
16
17
GND
19
20
21
22
23
24
25
26
27
28
29
TP1
30
Earth spring
GND
+3.3V
3
#
Q36
2
2SJ204-T1B
#
R316 1K 0.0625W 1
#
#
#
1%
DP
R317 27 0.0625W
1%
DM
R318 27 0.0625W
#
# #
GND
GND
Model Drawing Name
SC PC Board (9/10)
UF-4000/4100
1
Centronics i/f
CN9
2
CN9 DATA0
3
CN9 DATA1
4
CN9 DATA2
5
CN9 DATA3
6
CN9 DATA4
7
CN9 DATA5
8
CN9 DATA6
9
CN9 DATA7
CN9 SELECT
CN9 nFAULT
BUSY
CN9
nACK
CN9
PE
CN9
nINIT
CN9
1
nSTB
CN9
nAUTOFD
CN9
CN9 nSELIN
2
CN9 PLH
CN9 Not Used
CN9 Not Used
CN9 Not Used
CN9 Not Used
CN9 GND
CN9 GND
CN9 GND
GND
CN9
GND
CN9
GND
CN9
GND
CN9
GND
CN9
GND
CN9
CN9 GND
CN9 GND
3
CN9 GND
CN9 GND
CN9 GND
R41-2181C
#
B4B-PH-K-M
1
CN16
3
CN16
2
4
CN16
4
CN16