84
KX-FT932BR-B
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 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 link-
ing of several stations, the line connection time cannot be reduced. Accordingly, the following countermeasures should be tried.
(A)... As the 45 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 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-FT932BR-B
Страница 11: ...11 KX FT932BR B 6 Technical Descriptions 6 1 Connection Diagram ...
Страница 21: ...21 KX FT932BR B 6 4 2 Block Diagram ...
Страница 23: ...23 KX FT932BR B ...
Страница 35: ...35 KX FT932BR B b Redundancy Compression Process Coding Mode This unit uses one dimensional MH format ...
Страница 60: ...60 KX FT932BR B 11 2 The Example of the Printed List 11 2 1 User Mode Example of a printed out list ...
Страница 61: ...61 KX FT932BR B 11 2 2 Service Mode Example of a printed out list ...
Страница 67: ...67 KX FT932BR B ...
Страница 68: ...68 KX FT932BR B CROSS REFERENCE Test Mode P 54 ...
Страница 69: ...69 KX FT932BR B CROSS REFERENCE Test Mode P 54 ...
Страница 70: ...70 KX FT932BR B CROSS REFERENCE Test Mode P 54 ...
Страница 71: ...71 KX FT932BR B ...
Страница 73: ...73 KX FT932BR B ...
Страница 74: ...74 KX FT932BR B ...
Страница 75: ...75 KX FT932BR B CROSS REFERENCE Test Mode P 54 ...
Страница 102: ...102 KX FT932BR B NG Wave pattern Note Refer to NG Example P 107 ...
Страница 104: ...104 KX FT932BR B I O and Pin No Diagram ...
Страница 106: ...106 KX FT932BR B ...
Страница 107: ...107 KX FT932BR B 12 5 5 3 NG Example ...
Страница 111: ...111 KX FT932BR B 12 5 7 2 Troubleshooting Flow Chart ...
Страница 115: ...115 KX FT932BR B 12 5 10 CIS Contact Image Sensor Section Refer to Scanning Block P 24 CROSS REFERENCE Test Mode P 54 ...
Страница 116: ...116 KX FT932BR B 12 5 11 Thermal Head Section Refer to Thermal Head P 22 ...
Страница 117: ...117 KX FT932BR B 13 Service Fixture Tools ...
Страница 120: ...120 KX FT932BR B 14 2 Disassembly Procedurel 14 2 1 How to Remove the Operation Panel Block ...
Страница 121: ...121 KX FT932BR B 14 2 2 How to Remove the Operation Board LCD and Platen Roller ...
Страница 122: ...122 KX FT932BR B 14 2 3 How to Remove the Separation Holder and Document Feed Support ...
Страница 123: ...123 KX FT932BR B 14 2 4 How to Remove the Image Sensor CIS and Feed Roller ...
Страница 124: ...124 KX FT932BR B 14 2 5 How to Remove the Lock Lever and Thermal Head ...
Страница 125: ...125 KX FT932BR B 14 2 6 How to Remove the Bottom Frame ...
Страница 126: ...126 KX FT932BR B 14 2 7 How to Remove the Analog Board Digital Board Power Supply Board and Power Cord ...
Страница 127: ...127 KX FT932BR B 14 2 8 How to Remove the Gear Block and Separation Roller 14 2 9 How to Remove the Motor of Gear Block ...
Страница 128: ...128 KX FT932BR B 14 2 10 Installation Position of the Lead Wires ...
Страница 134: ...134 KX FT932BR B 15 2 3 Mechanical Movements in the Main Operations 15 2 3 1 Idle Status ...
Страница 136: ...136 KX FT932BR B 15 2 3 4 Copying CROSS REFERENCE Sensor Section P 114 ...
Страница 140: ...140 KX FT932BR B 16 1 4 Power Supply Board ...
Страница 143: ...143 KX FT932BR B 16 3 Test Chart 16 3 1 ITU T No 1 Test Chart ...
Страница 144: ...144 KX FT932BR B 16 3 2 ITU T No 2 Test Chart ...
Страница 145: ...145 KX FT932BR B MEMO ...
Страница 152: ...152 KX FT932BR B MEMO ...
Страница 161: ...161 KX FT932BR B MEMO ...
Страница 163: ...163 KX FT932BR B 20 1 2 Upper Cabinet Section ...
Страница 164: ...164 KX FT932BR B 20 1 3 Lower Cabinet Section ...
Страница 165: ...165 KX FT932BR B 20 1 4 Gear Block Section ...
Страница 166: ...166 KX FT932BR B 20 1 5 Screws ...
Страница 167: ...167 KX FT932BR B 20 1 6 Accessories and Packing Materials ...