Sharp FO-77 Service Manual Download

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FO-77U

UX-66U

SW-A5 No. 5, No. 6 Digital equalization setting
(Reception for Caller ID)

Line equalization when reception for CALLER ID is to be set according
to the line characteristics.
Setting should be made according to distance between the telephone
and the telephone company central switching station.

SW-A5 No. 7 Error criterion

Used to select error criterion for sending back RTN when receiving im-
age data.

SW-A5 No. 8 Anti junk fax check

When using the Anti junk fax function, set to "1".

SW-A6 No. 1 Auto gain control(MODEM)

When this mode is enabled, if the reception signal level is under 31dBm,
the modem itself controls the signal gain automatically.

SW-A6 No. 2 End buzzer

Setting this bit to 0 will disable the end buzzer (including the error buzzer/
on-hook buzzer).

SW-A6 No. 3 Disconnect the line when DIS is received in RX mode

Bit1 = 0 : When DIS signal is received during RX mode, disconnect the

line immediately.

Bit1 = 1 : When DIS signal is received during RX mode, wait for the next

signal.

SW-A6 No. 4 Equalizer freeze control (MODEM)

This switch is used to perform reception operation by fixing the equal-
izer control of modem for the line which is always in unfavorable state
and picture cannot be received.
* Usually, the control is executed according to the state of line where the
equalizer setting is changed always.

SW-A6 No.5 Equalizer freeze 7200BPS only

Setting which specifies SW-A6 No. 4 control only in condition of 7200BPS
modem speed.

SW-A6 No. 6 CNG transmission in manual TX mode

When set to "1", fax transmit the CNG signal in case of manual
transmissiom mode (User press the START key after waiting for the fax
answering signal from handset or speaker).

SW-A6 No. 7 Initial compression scheme for sharp fax in TX mode

When set to "0", if the other fax is Sharp model, fax transmit the docu-
ment by H2 mode.
When set to "1", even if the other fax is Sharp model, fax transmit the
document by MR mode.

SW-A6 No. 8 Modem speed automatic down when RX level is under
-40dBm

When set to "1", if fax signal level is under -40dBm during reception,
machine selects the slower modem speed automatically.
It is effective when noises occur on the received document due to the
long distance communications.

SW-A7 No. 1, No. 2 EOL (End Of Line) detect timer

Used to make a choice of whether to use the 5 or 13 or 20 or 25 seconds
timer for detection of EOL.
This is effective to override communication failures with some facsimile
models that have longer EOL detection.

SW-A7 No. 3 ~ No. 8 Reserved

Set to "0".

SW-B1 No. 1 Hold key

Used to set YES/NO of holding function by the HOLD key.

SW-B1 No. 2 Auto dial fax transmission by REDIAL key

When set to "1", if original documents are set to the feeder and you
press REDIAL key, machine will dial and transmit the ducuments auto-
matically.
When set to "0", operator needs to press the START key after FAX re-
ception tone is heard.

SW-B1 No. 3 Reserved

Set to "0".

SW-B1 No. 4 ~ No. 8 Recall interval
(0~15.5min setting by 0.5min step)

Choice is made for a redial interval for speed and rapid dial calls.
Use a binary number to program this with 0.5min steps. If set to 0 acci-
dentally, 0.5min will be assumed.

SW-B2 No. 1 ~ No.4 Recall times (0~15times setting)

Choice is made as to how many redials there should be.

SW-B2 No. 5 Dial tone detection (Before auto dial)

Used to set YES/NO of dial tone detection in auto dialing.

SW-B2 No. 6 Reserved

Set to "0".

SW-B2 No. 7 Busy tone detection (After auto dial)

Used to set YES/NO of busy tone detection after auto dialing.

SW-B2 No. 8 Busy tone detection pulse number (After auto dial)

Used for detection of busy tone in 2 or 4 pulses.

SW-B3 No. 1, No. 2 Waiting time after dialing

This is waiting time for the opponent's signals after dialing.
45 / 55 / 90 / 140 seconds settings are available.