Dual Line Board Connector Pin Assignment - Samsung ML-920 Service Manual

Dual Line Circuit Description

8-3 Dual Line Board Connector Pin Assignment

ITEM
Dual Line Interface Addr 0 ~Addr 15
(CN3)
Data 0 ~ Data 15
nDL_WAIT
nDL_RST
nDL_CS
nDL_ERQ1
nDL_RD
nDL_WR
DL_SOUND_OUT
+5V
DGND
LIU Interface MODEM_RX
(CN2)
MODEM_TXA1
MODEM_TXA2
REMOTE
nHOOK_OFF2
CML1
nRING_DET
DP
RECALL
nE_DP
+12V
DGND
Serial Connector +5V
(CN1)
TxD
RxD
DGND
8-2
Description
21, 19, 18, 17, 37, 44, 42, 40, 38,
36, 34, 32, 30, 28, 26, 24
35, 33, 31, 29, 27, 25, 23, 22, 14,
13, 11, 10, 9, 7, 6, 5
41
39
4
15
50
51
43
3, 58, 58, 60
8, 12, 16, 48, 52, 56
1
3
4
6
8
7
9
11
13
14
5
2, 12
1
2
3
4
Pin No.
Pulse
Pulse
+5V
+5V
+5V
+5V
+5V
+5V
DGND
+5V
DGND
DGND
DGND
DGND
DGND
+5V
DGND
+5V
DGND
DGND
+5V
+12V
DGND
+5V
+5V
+5V
DGND
Idle Active In/Out
Pulse I
Pulse I/O
DGND O
DGND I
DGND I
DGND O
DGND I
DGND I
+5V O
+5V -
DGND -
AC signal I
AC signal O
AC signal O
+5V I
DGND I
+5V O
DGND I
+5V O
+5V O
DGND O
+12V -
DGND -
+5V -
Pulse O
Pulse I
DGND -
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