Read Sharp AM-400 (serv.man8) Service Manual online
AM-400DE
2 – 27
SW8 No.1 CSI transmission
CSI signal contains the sender’s phone number registered in the
machine. If this switch is set to "1", no sender’s name will be printed at
the receiving side.
machine. If this switch is set to "1", no sender’s name will be printed at
the receiving side.
SW8 No. 2 DIS receive acknowledge during G3 transmission
Used to make a choice of whether reception of NSF (DIS) is acknowl-
edged after receiving two NSFs (DISs) or receiving one NSF (two
DISs). It may be useful for overseas communication to avoid an echo
suppression problem, if set to 1.
edged after receiving two NSFs (DISs) or receiving one NSF (two
DISs). It may be useful for overseas communication to avoid an echo
suppression problem, if set to 1.
SW8 No. 3 Non-modulated carrier in V.29 transmission mode
Though transmission of a non-modulated carrier is not required for
transmission by the V29 modem according to the CCITT Recommen-
dation, it may be permitted to send a non-modulated carrier before the
image signal to avoid an echo suppression problem. It may be useful
for overseas communication to avoid an echo suppression problem, if
set to 1.
transmission by the V29 modem according to the CCITT Recommen-
dation, it may be permitted to send a non-modulated carrier before the
image signal to avoid an echo suppression problem. It may be useful
for overseas communication to avoid an echo suppression problem, if
set to 1.
SW8 No. 4 CNG send when manual TX
CNG signal sending ON/OFF in case of manual transmission is set.
SW8 No. 5 Protocol monitor
Normally set to "0". If set to "1", communication can be checked, in
case of troubles, without using a G3 tester or other tools. When com-
munication FSK data transmission or reception is made, the data is
taken into buffer. When communication is finished, the data analyzed
and printed out. When data is received with the line monitor (SW7-No.
7) set to "1" the reception level is also printed out.
case of troubles, without using a G3 tester or other tools. When com-
munication FSK data transmission or reception is made, the data is
taken into buffer. When communication is finished, the data analyzed
and printed out. When data is received with the line monitor (SW7-No.
7) set to "1" the reception level is also printed out.
SW8 No. 6 Signal monitor
Normally set to "0". If set to "1", the transmission speed and the recep-
tion level are displayed on the LCD. Used for line tests.
tion level are displayed on the LCD. Used for line tests.
SW8 No. 7 Reserved
Set to "0".
SW8 No.8 Reserved
Set to "1".
SW9 No.1 Action when RTN received
The operation is set when the RTN signal is received in the G3 trans-
mission mode.
mission mode.
SW9 No. 2, No.3 Reserved
Set to "0".
SW9 No. 4 Reserved
Set to "1".
SW9 No. 5 Reserved
Set to "0".
SW9 No. 6 V.34 mode function in case of manual communication
Used to select whether the V.34 mode is made valid when automati-
cally transmitting/receiving.
cally transmitting/receiving.
SW9 No. 7 V.34 mode function
Used to select the V.34 mode for communication when set to “1” com-
munication method is V.34 mode.
munication method is V.34 mode.
SW9 No. 8 V.34 control channel communication speed
Used to select the control channel communication speed for V.34
mode.
mode.
SW10 No. 1 ~ No. 4 Modem speed
Used to determine the initial modem speed. The default is
14400BPS(V.17). It may be necessary to program it to a slower speed
when frequent line fallback is encountered, in order to save the time
required for the fallback procedure.
14400BPS(V.17). It may be necessary to program it to a slower speed
when frequent line fallback is encountered, in order to save the time
required for the fallback procedure.
SW10 No. 5, No. 6 Reception speed fixed
The transferable speed of modem in the receiving mode is set.
SW10 No. 7, No. 8 Compromised equalizer
The specific line equalizer is inserted.
No. 1 No. 2
0 0: The line equalizer built in the modem is turned off.
0 1: Line equalizer corresponding to 1.8 km.
1 0: Line equalizer corresponding to 3.6 km.
0 1: Line equalizer corresponding to 7.2 km.
SW11 No. 1, No. 2 CED tone signal interval
For international communication, the 2100Hz CED tone may act as an
echo suppressor switch, causing a communication problem. Though
this soft switch is normally set to "0", it should be set to "1" so as to
change the time between CED tone and DIS signal from 75ms to
500ms to eliminate the communication problem caused by echo.
echo suppressor switch, causing a communication problem. Though
this soft switch is normally set to "0", it should be set to "1" so as to
change the time between CED tone and DIS signal from 75ms to
500ms to eliminate the communication problem caused by echo.
SW11 No. 3, No. 4 EOL detection timer
Used to make a choice of whether to use the 25-second or 13-second
timer for detection of End of line This is effective to override communi-
cation failures with some facsimile models that have longer End of line
detection.
timer for detection of End of line This is effective to override communi-
cation failures with some facsimile models that have longer End of line
detection.
SW11 No. 5, No. 6 Processing of DIS reception after DIS transmis-
sion
sion
When receiving, operation in case of DIS reception after DIS transmis-
sion is selected. Retransmitting command: To retransmit DIS in disre-
gard of DIS reception.
sion is selected. Retransmitting command: To retransmit DIS in disre-
gard of DIS reception.
Breaking circuit: To break circuit instantly. (Abnormal finish)
T. 30: To operate in accordance with T. 30.
T. 30+<: To operate in accordance with T. 30+<. (To operate differently
according to cases.)
according to cases.)
SW11 No. 7, No.8 Reserved
Set to "0".
SW12 No. 1 ~ No. 5 Signal transmission level
Used to control the signal transmission level in the range of -0dB to -
31dB.
31dB.
SW12 No. 6 ~ No.8 Reserved
Set to "0".
SW13 No. 1 ~ No. 5 DTMF output level (High)
To set the level to output high group DTMF signals. -15 to 0 dBm (0.5
dBm unit)
dBm unit)
SW13 No. 6 ~ No. 8 Reserved
Set to "0".
SW14 No. 1 ~ No. 5 DTMF output level (Low)
To set the level to output low group DTMF signals. -15 to 0 dBm (0.5
dBm unit)
dBm unit)
SW14 No. 6 ~ No. 8 Reserved
Set to "0".
SW15 No. 1 ~ No. 4 V.34 mode transmission speed
Used to determine the initial modem speed when communication
method is V.34 transmission mode.
method is V.34 transmission mode.
SW15 No. 5 ~ No. 8 V.34 mode receiving speed
Used to determine the initial modem speed when communication
method is V.34 reception mode.
method is V.34 reception mode.
SW16 No. 1 ~ No. 3 Reserved
Set to "0".
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