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The following two causes can be considered for this symptom.
7.7.5.1.5. The unit can copy, but cannot either transmit/receive long distance or
international communications
Cause 1:
The other party is executing automatic dialing, the call has been received by this unit, and the CED or DIS signal response time
is too long. (In most cases, this unit detects the CNG signal and can respond to CED or DIS.) (According to the ITU-T standard,
the communication procedure is cancelled when there is no response from the other party within 35 sec, so that the other party
releases the line.)
(Cause and Countermeasure)
As shown in the chart above, the total handshaking time must be reduced, but because of the long distance connection and
linking of several stations, the line connection time cannot be reduced. Accordingly, the following countermeasures should be
tried.
(A)... As the 35 sec. count is started directly after dialing or directly after the START button has been pressed for models with
a START button, the other party should be called manually, if possible. Another possibility is entering two pauses at the end of
the auto dial number on the transmission side. Then the count start time can be delayed for 2 pauses (about 10 sec.).
Cause 2:
Erroneous detection because of an echo or an echo canceler.
(Echo/Echo Canceler)
The signal from FAX1 reaches FAX2 via stations 1 and 2, but the reflection signal at station 2 also returns via station 1 (echo).
As the distance between station 1 and station 2 is far, the echo returns to FAX 1 at a max of 600 msec after transmission. There
is a possibility that this signal is detected erroneously as the signal from FAX2. For a normal call, there is also a possibility that
the echo of their own voice will make the call difficult to understand. For this reason, each station (station 1 and station 2)
attaches echo cancelers (S1 and S2) for international lines or long distance lines. For the echo canceler, the level of the
transmission signal from FAX 1 is compared with the level of the reception signal from FAX2. When the transmission signal is
larger, S1 is closed while S2 is opened when it is smaller. In other words, for transmission from FAX1, S1 is closed and S2 is
open, so that the echo does not return to FAX1.
75
KX-FC971CX-S / KX-FGA521CX-S
Содержание KX-FC971CX-S
Страница 29: ...6 2 BASE UNIT 6 2 1 HOW TO REMOVE THE PAPER STACKER 29 KX FC971CX S KX FGA521CX S ...
Страница 30: ...6 2 2 HOW TO REMOVE THE OPERATION PANEL BLOCK 30 KX FC971CX S KX FGA521CX S ...
Страница 31: ...6 2 3 HOW TO REMOVE THE OPERATION BOARD LCD MICROPHONE UNIT and PLATEN ROLLER 31 KX FC971CX S KX FGA521CX S ...
Страница 32: ...6 2 4 HOW TO REMOVE THE SEPARATION HOLDER AND DOCUMENT FEED SUPPORT 32 KX FC971CX S KX FGA521CX S ...
Страница 33: ...6 2 5 HOW TO REMOVE THE IMAGE SENSOR CIS AND FEED ROLLER 33 KX FC971CX S KX FGA521CX S ...
Страница 34: ...6 2 6 HOW TO REMOVE THE ANTENNA AND CUTTER UNIT 34 KX FC971CX S KX FGA521CX S ...
Страница 35: ...6 2 7 HOW TO REMOVE THE LOCK LEVER AND THERMAL HEAD 35 KX FC971CX S KX FGA521CX S ...
Страница 36: ...6 2 8 HOW TO REMOVE THE BOTTOM FRAME 36 KX FC971CX S KX FGA521CX S ...
Страница 39: ...6 2 12 INSTALLATION POSITION OF THE LEAD WIRES 39 KX FC971CX S KX FGA521CX S ...
Страница 40: ...6 3 CORDLESS HANDSET 6 3 1 HOW TO REMOVE THE BATTERY COVER AND CABINET COVER 40 KX FC971CX S KX FGA521CX S ...
Страница 41: ...41 KX FC971CX S KX FGA521CX S ...
Страница 42: ...42 KX FC971CX S KX FGA521CX S ...
Страница 43: ...6 3 2 HOW TO REMOVE THE CORDLESS HANDSET BOARD 43 KX FC971CX S KX FGA521CX S ...
Страница 68: ...7 7 4 8 WHEN COPYING OR PRINTING AN ABNORMAL SOUND IS HEARD FROM THE UNIT 68 KX FC971CX S KX FGA521CX S ...
Страница 69: ...CROSS REFERENCE DISASSEMBLY INSTRUCTIONS P 27 69 KX FC971CX S KX FGA521CX S ...
Страница 80: ...80 KX FC971CX S KX FGA521CX S ...
Страница 81: ...CROSS REFERENCE TEST FUNCTIONS P 50 81 KX FC971CX S KX FGA521CX S ...
Страница 82: ...CROSS REFERENCE TEST FUNCTIONS P 50 82 KX FC971CX S KX FGA521CX S ...
Страница 83: ...CROSS REFERENCE TEST FUNCTIONS P 50 83 KX FC971CX S KX FGA521CX S ...
Страница 84: ...CROSS REFERENCE TEST FUNCTIONS P 50 84 KX FC971CX S KX FGA521CX S ...
Страница 85: ...85 KX FC971CX S KX FGA521CX S ...
Страница 86: ...86 KX FC971CX S KX FGA521CX S ...
Страница 87: ...CROSS REFERENCE TEST FUNCTIONS P 50 87 KX FC971CX S KX FGA521CX S ...
Страница 91: ...91 KX FC971CX S KX FGA521CX S ...
Страница 95: ...7 7 6 2 CHECK THE STATUS OF THE DIGITAL BOARD I O and Pin No Diagram 95 KX FC971CX S KX FGA521CX S ...
Страница 97: ...Other NG example while the power is ON and the LCD displays the following 97 KX FC971CX S KX FGA521CX S ...
Страница 98: ...7 7 6 3 NG Example 98 KX FC971CX S KX FGA521CX S ...
Страница 102: ...7 7 8 2 Troubleshooting Flow Chart 102 KX FC971CX S KX FGA521CX S ...
Страница 107: ...7 7 12 THERMAL HEAD SECTION Refer to THERMAL HEAD P 138 107 KX FC971CX S KX FGA521CX S ...
Страница 109: ...7 7 13 3 Check Link 7 7 13 3 1 Base Unit Analog Board 7 7 13 3 2 Cordless Handset 109 KX FC971CX S KX FGA521CX S ...
Страница 126: ...8 CIRCUIT OPERATIONS 8 1 CONNECTION DIAGRAM 126 KX FC971CX S KX FGA521CX S ...
Страница 128: ...Supplies 5V 8V and 24V to the unit 128 KX FC971CX S KX FGA521CX S ...
Страница 137: ...8 4 2 BLOCK DIAGRAM 137 KX FC971CX S KX FGA521CX S ...
Страница 139: ...139 KX FC971CX S KX FGA521CX S ...
Страница 146: ...8 4 6 3 2 SCANNING CROSS REFERENCE SENSOR SECTION P 105 146 KX FC971CX S KX FGA521CX S ...
Страница 147: ...8 4 6 3 3 PRINTING Note See SENSORS AND SWITCHES P 149 147 KX FC971CX S KX FGA521CX S ...
Страница 148: ...8 4 6 3 4 COPYING CROSS REFERENCE SENSOR SECTION P 105 148 KX FC971CX S KX FGA521CX S ...
Страница 158: ...b Redundancy Compression Process Coding Mode This unit uses one dimensional MH format 158 KX FC971CX S KX FGA521CX S ...
Страница 162: ...162 KX FC971CX S KX FGA521CX S ...
Страница 178: ...9 1 1 3 Operation Board 9 1 1 4 Power Supply Board 9 1 2 Cordless Handset 178 KX FC971CX S KX FGA521CX S ...
Страница 181: ...9 3 TEST CHART 9 3 1 ITU T No 1 TEST CHART 181 KX FC971CX S KX FGA521CX S ...
Страница 182: ...9 3 2 ITU T No 2 TEST CHART 182 KX FC971CX S KX FGA521CX S ...
Страница 183: ...10 FIXTURES AND TOOLS 183 KX FC971CX S KX FGA521CX S ...
Страница 184: ...11 CABINET MECHANICAL AND ELECTRICAL PARTS LOCATION 11 1 OPERATION PANEL SECTION 184 KX FC971CX S KX FGA521CX S ...
Страница 185: ...11 2 UPPER CABINET SECTION 185 KX FC971CX S KX FGA521CX S ...
Страница 186: ...11 3 LOWER CABINET SECTION 186 KX FC971CX S KX FGA521CX S ...
Страница 187: ...11 4 MOTOR SECTION 187 KX FC971CX S KX FGA521CX S ...
Страница 188: ...11 5 CORDLESS HANDSET SECTION 188 KX FC971CX S KX FGA521CX S ...
Страница 189: ...11 6 CHARGER UNIT SECTION 189 KX FC971CX S KX FGA521CX S ...
Страница 190: ...11 7 ACTUAL SIZE OF SCREWS 190 KX FC971CX S KX FGA521CX S ...
Страница 191: ...12 ACCESSORIES AND PACKING MATERIALS 191 KX FC971CX S KX FGA521CX S ...
Страница 192: ...13 ACCESSORIES AND PACKING MATERIALS 13 1 KX FGA521CX 192 KX FC971CX S KX FGA521CX S ...
Страница 217: ...17 4 POWER SUPPLY BOARD IC101 KX FC971CX S POWER SUPPLY BOARD KX FC971CX S KX FGA521CX S 217 ...