3MZ
2-2-3
YC2
1
+12V
O
12 V DC
+12 V DC power supply
Connected
to the NCU
PWB.
2
A.G
-
-
Ground
3
5V
O
5 V DC
5 V DC supply
4
S.G
-
-
Ground
5
EXTRING1
-
-
Not used
6
EXTRING2
-
-
Not used
7
KMUTE
O
3.3/0 V DC
KMUTE signal
8
SHUNT
O
3.3/0 V DC
SHUNT signal
9
PLSDIL
O
3.3/0 V DC (pulse) Dial pulse signal
10
EARTH
O
3.3/0 V DC
EARTH signal
11
TELSEL
O
3.3/0 V DC
TELSEL signal
12
FAXSEL
O
3.3/0 V DC
FAXSEL signal
13
NCUTYPE2
-
Ground*1/Open*2 Destination identification signal 2
14
NCUTYPE3
-
Open*1/Ground*2 Destination
identification signal 3
15
_OFFHOOK
I
3.3/0 V DC
_OFFHOOK signal
16
NCUTYPE1
-
Open
Destination identification signal 1
17
_ONHOOK1
I
5/0 V DC
_ONHOOK1 signal
18
_ONHOOK2
I
5/0 V DC
_ONHOOK2 signal
19
_RNGDET
I
3.3/0 V DC (pulse) Ring signal
20
MODTXD
O
Analog
MODTXD signal
21
RXIN
I
Analog
RXIN signal
22
MODRXD
I
Analog
MODRXD signal
YC3
1
OUT
O
Analog
Speaker sound output
Connected
to the
speaker.
2
AGND
-
-
Ground
YC4
1
+2.4V
I
2.4 V DC
Backup 2.4 V DC power supply input
Connected
to the
backup bat-
tery.
2
GND
-
-
Ground
YC5
1
+24V
O
24 V DC
24 V DC supply
Connected
to the NCU
2
GND
-
-
Ground
3
-
-
-
Not used
Connector
Pin No.
Signal
I/O
Voltage
Description
Содержание DF-420
Страница 1: ...SERVICE MANUAL Published in May 2009 3MZSM060 First Edition DP 420 PF 420 DF 420 JS 420 FAX System R ...
Страница 3: ...Revision history Revision Date Replaced pages Remarks ...
Страница 4: ...This page is intentionally left blank ...
Страница 10: ...This page is intentionally left blank ...
Страница 11: ...First Edition DP 420 ...
Страница 13: ...3MX 2 4 Appendixes List of maintenance parts 2 4 1 Periodic maintenance procedures 2 4 2 Wiring diagram 2 4 4 ...
Страница 17: ...3MX 1 1 4 This page is intentionally left blank ...
Страница 21: ...3MX 1 2 4 This page is intentionally left blank ...
Страница 65: ...3MX 1 5 10 This page is intentionally left blank ...
Страница 69: ...3MX 2 1 4 This page is intentionally left blank ...
Страница 82: ...First Edition PF 420 ...
Страница 84: ...3MH 2 4 Appendixes List of maintenance parts 2 4 1 Periodic maintenance procedures 2 4 1 Wiring diagram 2 4 2 ...
Страница 87: ...3MH 1 1 3 1 1 3 Machine cross section Figure 1 1 2 Machine cross section Paper path ...
Страница 88: ...3MH 1 1 4 This page is intentionally left blank ...
Страница 94: ...3MH 1 2 6 This page is intentionally left blank ...
Страница 128: ...3MH 1 4 12 This page is intentionally left blank ...
Страница 136: ...3MH 1 5 8 This page is intentionally left blank ...
Страница 142: ...3MH 2 2 4 This page is intentionally left blank ...
Страница 146: ...3MH 2 3 4 This page is intentionally left blank ...
Страница 149: ...First Edition DF 420 ...
Страница 151: ...3MJ This page is intentionally left blank ...
Страница 155: ...3MJ 1 1 4 This page is intentionally left blank ...
Страница 159: ...3MJ 1 2 4 3 Remove the tape from the process table Figure 1 2 4 Tape Process table ...
Страница 175: ...3MJ 1 5 4 This page is intentionally left blank ...
Страница 181: ...3MJ 2 1 6 This page is intentionally left blank ...
Страница 185: ...3MJ 2 2 4 This page is intentionally left blank ...
Страница 192: ...First Edition JS 420 ...
Страница 194: ...3MK This page is intentionally left blank ...
Страница 196: ...3MK 1 1 2 1 1 2 Parts names Figure 1 1 1 1 2 1 Job separator tray 2 LED ...
Страница 197: ...3MK 1 1 3 1 1 3 Machine cross section Figure 1 1 2 Machine cross section Paper path ...
Страница 198: ...3MK 1 1 4 This page is intentionally left blank ...
Страница 212: ...3MK 2 2 2 This page is intentionally left blank ...
Страница 215: ...First Edition FAX System R ...
Страница 217: ...3MZ This page is intentionally left blank ...
Страница 227: ...3MZ 1 2 4 This page is intentionally left blank ...
Страница 285: ...3MZ 1 6 2 This page is intentionally left blank ...
Страница 287: ...3MZ 2 1 2 This page is intentionally left blank ...
Страница 291: ...3MZ 2 2 4 2 2 2 NCU PWB Figure 2 2 2 NCU PWB silk screen diagram MCN1 MCN2 MCN3 4 3 4 3 4 3 CN2 CN1 1 2 21 22 2 1 ...
Страница 293: ...3MZ 2 2 6 This page is intentionally left blank ...
Страница 295: ...3MZ 2 3 2 This page is intentionally left blank ...
Страница 296: ......