SHARP UX-A460
Service Manual

UX-A460DE UX-A460H
SW-H2 No. 7 AM OGM announce only mode If this switch is set to 1, the machine will not record ICM. (disconnect the line after OGM output) SW-H2 No. 8 Busy tone continuous sound detect time Set detecting time busy tone continuous sound for 5 or 10 seconds. SW-I1 No. 1, No. 2 ICM recording time Used to select the incoming message recording time to 15sec/30sec/ 60sec/4min. SW-I1 No. 3, No. 4 A.M. quiet time 1 Used to select four kinds of no sound time (2 sec ~ 5 sec) after reception in the T.A.D. mode until OGM is output. SW-I5 No. 1 ~ No. 4 AGC energy reference level access code (Line) (-0 ~ -30dB) (2dB step) The AGC Energy Reference Level controls the playback level. Any message having average speech energy above the energy reference level has its playback level attenuated, and any level has its playback level increased. If the playback level is too high (low), then decreasing (increasing) the AGC Energy Reference Level will achieve the desired level. SW-I5 No. 5 ~ No. 8 AGC energy reference level access code (Mic) (-0 ~ -30dB) (2dB step) The AGC Energy Reference Level controls the playback level. Any message having average speech energy above the energy reference level has its playback level attenuated, and any level has its playback level increased. If the playback level is too high (low), then decreasing (increasing) the AGC Energy Reference Level will achieve the desired level.

Reception

OGM output

ICM recording

2 sec~ 5 sec ( SW-I1No. 3, No. 4)
SW-I1 No. 5, No. 6 A.M. quiet time 2 Used to select four kinds of no sound time (0 sec ~ 3 sec) after OGM output the T.A.D. mode until ICM recording is started.

SW-I6 No. 1 ~ No. 4 AGC gain adaptation threshold (Line) The AGC adjusts the amount of gain applied to the incoming message only when the average energy exceeds the AGC Gain Adaptation Threshold. The AGC Gain Adaptation Threshold prevents message background noise from corrupting the gain provided that the AGC Gain Adaptation Threshold is greater than the background noise energy. In the event that a message has background noise energy greater than the AGC Gain Adaptation Threshold, the AGC Gain can be no greater than the AGC Maximum Gain. Note that the AGC Gain Adaptation Threshold must always be greater than the RPACS VOX Turn-On Threshold. SW-I6 No. 5 ~ No. 8 AGC gain adaptation threshold (Mic) The AGC adjusts the amount of gain applied to the incoming message only when the average energy exceeds the AGC Gain Adaptation Threshold. The AGC Gain Adaptation Threshold prevents message background noise from corrupting the gain provided that the AGC Gain Adaptation Threshold is greater than the background noise energy. In the event that a message has background noise energy greater than the AGC Gain Adaptation Threshold, the AGC Gain can be no greater than the AGC Maximum Gain. Note that the AGC Gain Adaptation Threshold must always be greater than the RPACS VOX Turn-On Threshold. SW-I7 No. 1, No. 2 AGC slew rate (Line) The AGC Slew Rate controls the convergence of the message playback level to the desired playback level. A large slew rate will allow faster convergence and a small slew rate will allow slower convergence. SW-I7 No. 3, No. 4 AGC slew rate (Mic) The AGC Slew Rate controls the convergence of the message playback level to the desired playback level. A large slew rate will allow faster convergence and a small slew rate will allow slower convergence. SW-I7 No. 5 ~ No. 8 Reserved Set to "0". SW-J1 No. 1, No. 2 Reserved Set to "0". SW-J1 No. 3 Sender�s phone number setting Used to make a choice of whether the registered sender�s phone number can be changed or not. If the switch is set to "1", new registration of the sender�s phone number is disabled to prevent accidental wrong input. SW-J1 No. 4, No. 5 Reserved Set to "0". SW-J1 No. 6 Summer time setting Used to set YES/NO of automatic clock adjustment for European summer time. SW-J1 No. 7, No. 8 Ringer volume Used to adjust ringing volume. SW-J2 No. 1 ~ No. 5 Reserved Set to "0".

Reception

OGM output

ICM recording

0 sec~3 sec (SW-I1 No. 5, No. 6)
SW-I1 No. 7 Key input buzzer on/off switch (Two way recording mode) Used to turn ON/OFF key input buzzer in the TWO-WAY recording mode. SW-I1 No. 8 Reserved Set to "0". SW-I2 No. 1 ~ No. 5 A.M. quiet detect time Used to set no sound time (0 sec ~ 32 sec) during the T.A.D. mode operation. SW-I2 No. 6 ~ No. 8 Reserved Set to "0". SW-I3 No. 1 Reserved Set to "0". SW-I3 No. 2 Max OGM record time Used select the outgoing message recording time to 60sec or 15sec. SW-I3 No. 3 Two way record function If this switch is set to "1", the machine disables two way recording. SW-I3 No. 4 Toll saver Used to turn on the toll saver function. If it is off, the reception frequency in the AM mode is indentical with that in the FAX mode. SW-I3 No. 5 ~ No. 7 Reserved Set to "0". SW-I3 No. 8 Transfer dial recall If this switch is set to "1", machine disables redial in Transfer function. SW-I4 No. 1 ~ No. 4 AGC maximum gain (Line) (10 ~ 25dB) (1dB step) The AGC Maximum Gain limits the gain applied by the AGC. Messages with average energy below the AGC Energy Reference Level will have their average energy level increased by no more than the AGC Maximum Gain. The AGC Maximum Gain should average energy of the message with the lowest average energy to the AGC Energy Reference Level. SW-I4 No. 5 ~ No. 8 AGC maximum gain (Mic) (10 ~ 25dB) (1dB step) The AGC Maximum Gain limits the gain applied by the AGC. Messages with average energy below the AGC Energy Reference Level will have their average energy level increased by no more than the AGC Maximum Gain. The AGC Maximum Gain should average energy of the message with the lowest average energy to the AGC Energy Reference Level.

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