SHARP UX-B17DE
Service Manual

UX-B17DE
SW-B4 No. 8 Recalling fixed only one time when dialing was unsuccessful without detecting busy tone signal When dialing results in failure since the busy tone cannot be detected, recalling is fixed to one time. Supplementary explanation If time-out termination is made when dialing, only single recall is possible even if the setting time of recalls (SW-B1 No. 5 - No. 8) has been set to some times. This soft switch is added in order to meet FCC. SW-B5 No. 1 ~ No. 5 DTMF signal transmission level (Low) The dial signal of a push button telephone is called DTMF (dual-tone multi-frequency). These tones consist of two signals, one from a high group of frequencies and one from a low group of frequencies. Represent each of the push button telephone characters shown as below.
Low High Frequency Frequency 1209Hz 1336Hz 1477Hz 697Hz 770Hz 852Hz 941Hz 1 4 7 2 5 8 0 3 6 9

SW-C1 No. 7 MTF correction in half tone mode This allows selection of MTF correction (dimness correction) in the half tone mode. When "NO" (=1) is selected, the whole image becomes soft and mild. Clearness of characters will be reduced. Normally set to "YES" (=0). SW-C1 No. 8 Reserved Set to "0". SW-D1 No. 1 ~ No. 4 Number of rings for auto receive When the machine is set in the auto receive mode, the number of rings before answering can be selected. It may be set from one to four rings using a binary number. Since the facsimile telephone could be used as an ordinary telephone if the handset is taken off the hook, it should be programmed to the user�s choice. If the soft switch was set to 1, direct connection is made to the facsimile. If a facsimile calling beep was heard when the handset is taken off the hook, press the START key and put the handset on the hook to have the facsimile start receiving. If it was set to 0 accidentally, receive ring is set to 1. NOTE: If the machine is set to answer after a large number of rings, it may not be able to receive faxes successfully. If you have difficulty receiving faxes, reduce the number of rings to a maximum of 6. SW-D1 No. 5 Automatic switching manual to auto receive mode This soft switch is used to select whether the machine should switch to the auto receive mode after 5 rings in the manual receive mode or remain in the same way as SW-D1 No. 1, No. 2, No. 3 and No. 4 "0"1"0"1"(5 rings). SW-D1 No. 6 Reserved Set to "0". SW-D1 No. 7, No. 8 CI detect frequency Detection frequency of ring signal for auto reception is set. When set to No. 6=0, No. 7=0, frequency is set to PTT recommendation. When set to No. 6=0, No. 7=1, frequency is set to 11.5Hz or more. When set to No. 6=1, No. 7=0, frequency is set to 13.0Hz or more. When set to No. 6=1, No. 7=1, frequency is set to 20.0Hz or more. SW-D2 No. 1 ~ No. 4 Reserved Set to "0". SW-D2 No. 5 Caller ID function Used for Caller ID function. SW-D2 No. 6 Caller ID detect during CI off Detection of caller ID signal is performed as follows: 0: First CI OFF only 1: All of CI OFF SW-D2 No. 7, No. 8 Reserved Set to "0".

The transmission level of DTMF signal is adjusted. (lower frequency) 00000: 0dBm � 11111: -15.5 dBm (-0.5dBm x 31) SW-B5 No. 6 Dial pulse format If this switch is set to �1�, pulse dial number dials +1. (Example) 0: dial 1 9: dial 0 (10 pulses) SW-B5 No. 7 FLASH send time Used to select length of Flash. No. 7=0: 90msec (Short time) No. 7=1: 250msec (Long time) SW-B5 No. 8 Reserved Set to "0". SW-B6 No. 1 ~ No. 5 DTMF signal transmission level (High) The transmission level of DTMF signal is adjusted. (higher frequency) 00000: 0dBm � 11111: -15.5 dBm (-0.5dBm x 31) SW-B6 No. 6 ~ No. 8 Reserved Set to "0". SW-C1 No. 1, No. 2 Reading slice (Binary) Used to determine the set value of reading density in standard/fine mode. The standard setting is "00" (Factory setting is "00") SW-C1 No. 3, No. 4 Reading slice (Half tone) Used to determine the set value of reading density in half tone mode. The standard setting is "00" (Factory setting is "00") SW-C1 No. 5 Line density selection Used to set the transmission mode which is automatically selected when the Resolution key is not pressed. In the copy mode, however, the fine mode is automatically selected unless the Resolution key is manually set to another mode. SW-C1 No. 6 Reserved Set to "0".

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