93
KX-FP207FX-S/FP218FX-S
12.3.3.1.5. The unit can copy, but cannot either transmit/receive long distance or interna-
tional communications
The following two causes can be considered for this symptom.
Cause 1:
The other party is executing automatic dialling, 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 link-
ing 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 dialling 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 trans-
mission 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.
Содержание KX-FP207
Страница 10: ...10 KX FP207FX S FP218FX S 6 Technical Descriptions 6 1 Connection Diagram ...
Страница 12: ...12 KX FP207FX S FP218FX S 6 2 1 General Block Diagram ...
Страница 14: ...14 KX FP207FX S FP218FX S 6 3 2 Memory Map ...
Страница 23: ...23 KX FP207FX S FP218FX S 6 4 2 Block Diagram ...
Страница 25: ...25 KX FP207FX S FP218FX S ...
Страница 44: ...44 KX FP207FX S FP218FX S 2 Signal path Refer to Check Sheet for Signal Route P 123 ...
Страница 67: ...67 KX FP207FX S FP218FX S 11 2 The Example of the Printed List 11 2 1 User Mode 11 2 1 1 KX FP207FX S ...
Страница 68: ...68 KX FP207FX S FP218FX S 11 2 1 2 KX FP218FX S Note The above values are the default values ...
Страница 76: ...76 KX FP207FX S FP218FX S Countermeasure ...
Страница 77: ...77 KX FP207FX S FP218FX S REFERENCE Test Mode P 58 ...
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Страница 119: ...119 KX FP207FX S FP218FX S I O and Pin No Diagram ...
Страница 121: ...121 KX FP207FX S FP218FX S Other NG example while the power is ON and the LCD displays the following ...
Страница 122: ...122 KX FP207FX S FP218FX S 12 5 5 2 NG Example ...
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Страница 127: ...127 KX FP207FX S FP218FX S Note Check to the SP Phone Rx Tx signal routes Refer to Check Sheet for Signal Route P 123 ...
Страница 129: ...129 KX FP207FX S FP218FX S 12 5 8 2 Troubleshooting Flow Chart ...
Страница 135: ...135 KX FP207FX S FP218FX S 12 5 12 Thermal Head Section Note Refer to Thermal Head P 24 ...
Страница 136: ...136 KX FP207FX S FP218FX S 13 Service Fixture Tools ...
Страница 140: ...140 KX FP207FX S FP218FX S 14 3 Disassembly Procedure 14 3 1 How to Remove the Image Sensor CIS ...
Страница 141: ...141 KX FP207FX S FP218FX S 14 3 2 How to Remove the Thermal Head ...
Страница 142: ...142 KX FP207FX S FP218FX S ...
Страница 143: ...143 KX FP207FX S FP218FX S 14 3 3 How to Remove the Bottom Frame ...
Страница 144: ...144 KX FP207FX S FP218FX S 14 3 4 How to Remove the P C Boards and Speaker ...
Страница 145: ...145 KX FP207FX S FP218FX S 14 3 5 How to Remove the Power Supply Board and AC cord ...
Страница 146: ...146 KX FP207FX S FP218FX S 14 3 6 How to Remove the Gear Block and Separation Roller ...
Страница 147: ...147 KX FP207FX S FP218FX S 14 3 7 How to Remove the Gears Motors and Arms of the Gear Block ...
Страница 148: ...148 KX FP207FX S FP218FX S ...
Страница 149: ...149 KX FP207FX S FP218FX S 14 3 8 How to Remove the Handset Cradle and Hook Switch Board ...
Страница 150: ...150 KX FP207FX S FP218FX S 14 3 9 How to Remove the Back Cover ...
Страница 151: ...151 KX FP207FX S FP218FX S 14 3 10 How to Remove the Platen Roller and Lock Lever ...
Страница 152: ...152 KX FP207FX S FP218FX S ...
Страница 153: ...153 KX FP207FX S FP218FX S 14 3 11 How to Remove the Pickup Roller ...
Страница 154: ...154 KX FP207FX S FP218FX S 14 3 12 How to Remove the Operation Panel ...
Страница 155: ...155 KX FP207FX S FP218FX S 14 3 13 How to Remove the Operation Board and LCD 14 3 13 1 KX FP207FX ...
Страница 156: ...156 KX FP207FX S FP218FX S 14 3 13 2 KX FP218FX ...
Страница 157: ...157 KX FP207FX S FP218FX S 14 3 14 How to Remove the Separation Holder and Exit Roller ...
Страница 158: ...158 KX FP207FX S FP218FX S 14 3 15 Installation Position of the Lead Wires 14 3 15 1 Lower Section ...
Страница 159: ...159 KX FP207FX S FP218FX S ...
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Страница 161: ...161 KX FP207FX S FP218FX S 14 3 15 2 Operation Panel Section KX FP207 ...
Страница 162: ...162 KX FP207FX S FP218FX S 14 3 15 3 Operation Panel and Mic Board Section KX FP218 ...
Страница 177: ...177 KX FP207FX S FP218FX S 16 1 4 Power Supply Board 16 1 5 Interface Board ...
Страница 180: ...180 KX FP207FX S FP218FX S 16 3 Test Chart 16 3 1 ITU T No 1 Test chart ...
Страница 181: ...181 KX FP207FX S FP218FX S 16 3 2 ITU T No 2 Test Chart ...
Страница 182: ...182 KX FP207FX S FP218FX S 16 3 3 Test Chart ...
Страница 201: ...201 KX FP207FX S FP218FX S MEMO ...
Страница 212: ...212 KX FP207FX S FP218FX S 20 1 2 Operation Panel Section ...
Страница 213: ...213 KX FP207FX S FP218FX S 20 1 3 Upper Cabinet Section ...
Страница 214: ...214 KX FP207FX S FP218FX S 20 1 4 Back Cover Section ...
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Страница 216: ...216 KX FP207FX S FP218FX S 20 1 5 Lower Cabinet Section ...
Страница 217: ...217 KX FP207FX S FP218FX S 20 1 6 Gear Block Section ...
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Страница 219: ...219 KX FP207FX S FP218FX S 20 1 7 Screws ...
Страница 220: ...220 KX FP207FX S FP218FX S 20 1 8 Accessories and Packing Materials ...
Страница 232: ...232 KX FP207FX S FP218FX S Y F KXFP207FX S KXFP218FX S ...