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KX-FLC418RU
6.3.3.
Modem Circuit Operation
The modem (IC111) has all the hardware satisfying the CCITT standards mentioned previously.
When the ASIC IC106 (114) is brought to a low level, the modem (IC111) is chip-selected and the resistors inside IC are selected by
the select signals from ASIC (IC106) ADR0-ADR4(pin 84~88). Commands are written through the data bus, and all processing is
controlled by the ASIC (IC106) according to CCITT procedures. Here, the INT signal dispatched from IRQ (pin 100 of IC111) to the
ASIC (IC106) implements post processing.
This modem (IC111) has an automatic application equalizer. With training signal 1 or 2 at the time of G3 reception, it can automati-
cally establish the optimum equalizer. The modem (IC111) operates using the 32.256MHz clock (X105).
1.
Facsimile Transmission/DTMF Line Send
The digital image data on the data bus is modulated in the modem (IC111), and sent from pin 56 via modem IC111, amplifier
IC204(6
→
7) and the NCU section to the telephone line.
Refer to
2.
Facsimile Reception
The analog image data which is received from the telephone line passes through the NCU section and enters pin 47 of the
modem (IC111). The signals that enter pin 47 of the modem (IC111) are demodulated in the board to digital image signals,
then placed on the data bus.
In this case, the image signals from the telephone line are transmitted serially. Hence, they are placed on the bus in 8 bit units.
Here, the internal equalizer circuit reduces the image signals to a long-distance receiving level.
This is designed to correct the characteristics of the frequency band centered around 3 kHz and maintain a constant receiving
sensitivity.
It can be set in the service mode.
Refer to
Содержание KX-FLC418RU
Страница 13: ...13 KX FLC418RU 4 2 2 Error Message Reports 4 2 3 Help Function 4 2 4 Cordless Handset ...
Страница 15: ...15 KX FLC418RU 6 Technical Descriptions 6 1 Connection Diagram ...
Страница 36: ...36 KX FLC418RU 6 8 1 2 Engine Motor Drive Circuit ...
Страница 41: ...41 KX FLC418RU 6 11 LSU Laser Scanning Unit Section ...
Страница 42: ...42 KX FLC418RU ...
Страница 47: ...47 KX FLC418RU 6 12 9 Drum Detection ...
Страница 59: ...59 KX FLC418RU Refer to Call Service Troubleshooting Guide P 153 ...
Страница 84: ...84 KX FLC418RU 9 Operation Instructions 9 1 Characters available in each character entry mode ...
Страница 85: ...85 KX FLC418RU 9 2 Setting Your Logo The logo can be your name or the name of your company ...
Страница 87: ...87 KX FLC418RU Note Refer to Program Mode Table P 144 Refer to For Service Hint P 88 ...
Страница 91: ...91 KX FLC418RU 10 1 1 Button Code Table ...
Страница 97: ...97 KX FLC418RU 11 2 Cordless Handset ...
Страница 100: ...100 KX FLC418RU 11 3 2 Service Mode Settings Example of a printed out list Note The above values are the default values ...
Страница 106: ...106 KX FLC418RU ...
Страница 107: ...107 KX FLC418RU CROSS REFERENCE Test Functions P 89 ...
Страница 108: ...108 KX FLC418RU CROSS REFERENCE Test Functions P 89 ...
Страница 109: ...109 KX FLC418RU CROSS REFERENCE Test Functions P 89 ...
Страница 110: ...110 KX FLC418RU CROSS REFERENCE Test Functions P 89 ...
Страница 111: ...111 KX FLC418RU ...
Страница 112: ...112 KX FLC418RU ...
Страница 113: ...113 KX FLC418RU CROSS REFERENCE Test Functions P 89 ...
Страница 121: ...121 KX FLC418RU 12 2 3 1 4 The Unit can copy but cannot Transmit Receive CROSS REFERENCE Test Functions P 89 ...
Страница 128: ...128 KX FLC418RU 12 2 5 5 Motor Section 12 2 5 5 1 Engine Motor ...
Страница 129: ...129 KX FLC418RU 12 2 5 5 2 Scan ADF Motor ...
Страница 130: ...130 KX FLC418RU 12 2 5 6 LSU Section CROSS REFERENCE LSU Laser Scanning Unit Section P 41 ...
Страница 131: ...131 KX FLC418RU 12 2 6 CIS Contact Image Sensor Section CROSS REFERENCE Test Functions P 89 ...
Страница 133: ...133 KX FLC418RU ...
Страница 134: ...134 KX FLC418RU 12 2 8 High Voltage Section 1 Main ...
Страница 135: ...135 KX FLC418RU 2 CHG GRID ...
Страница 136: ...136 KX FLC418RU 3 TRA ...
Страница 137: ...137 KX FLC418RU 4 DEV ...
Страница 138: ...138 KX FLC418RU ...
Страница 140: ...140 KX FLC418RU 12 2 9 2 Troubleshooting Flow Chart ...
Страница 141: ...141 KX FLC418RU ...
Страница 148: ...148 KX FLC418RU 12 4 4 Simple Check List Note Check according to the service code referring to Test Functions P 89 ...
Страница 161: ...161 KX FLC418RU 12 4 7 3 Dark or White Horizontal Line CROSS REFERENCE High Voltage Section P 134 ...
Страница 162: ...162 KX FLC418RU 12 4 7 4 Dirty or Halk Darkness Black Ground CROSS REFERENCE High Voltage Section P 134 ...
Страница 163: ...163 KX FLC418RU 12 4 7 5 Black Print CROSS REFERENCE High Voltage Section P 134 LSU Section P 130 ...
Страница 164: ...164 KX FLC418RU 12 4 7 6 Light Print CROSS REFERENCE High Voltage Section P 134 ...
Страница 165: ...165 KX FLC418RU 12 4 7 7 Black Density is Light or Uneven CROSS REFERENCE High Voltage Section P 134 ...
Страница 166: ...166 KX FLC418RU 12 4 7 8 Blank Print 12 4 7 9 Black or White Point ...
Страница 167: ...167 KX FLC418RU 12 4 8 Recording Paper Feed 12 4 8 1 Multiple Feed 12 4 8 2 The Recording Paper is Waved or Wrinkled ...
Страница 168: ...168 KX FLC418RU 12 4 8 3 Skew ...
Страница 169: ...169 KX FLC418RU 12 4 8 4 The Recording Paper Does Not Feed CROSS REFERENCE Sensor Section P 126 Motor Section P 128 ...
Страница 170: ...170 KX FLC418RU 12 4 8 5 The Recording Paper Jam ...
Страница 173: ...173 KX FLC418RU CROSS REFERENCE Motor Section P 128 ...
Страница 174: ...174 KX FLC418RU 12 4 9 2 Skew ADF ...
Страница 176: ...176 KX FLC418RU 12 4 9 5 The Received or Copied Data is Expanded ...
Страница 177: ...177 KX FLC418RU 12 4 9 6 Black or White Vertical Line is Copied ...
Страница 178: ...178 KX FLC418RU 12 4 9 7 An Abnormal Image is Copied CROSS REFERENCE CIS Contact Image Sensor Section P 131 ...
Страница 181: ...181 KX FLC418RU 12 4 10 4 Check Link Cordless Base Unit ...
Страница 182: ...182 KX FLC418RU ...
Страница 193: ...193 KX FLC418RU 13 Service Fixture Tools ...
Страница 194: ...194 KX FLC418RU 14 Disassembly and Assembly Instructions ...
Страница 197: ...197 KX FLC418RU 14 3 Cordless Handset Section CROSS REFERENCE E1 How to Replace the LCD P 219 ...
Страница 198: ...198 KX FLC418RU 14 4 How to Remove the Front Cover ...
Страница 199: ...199 KX FLC418RU 14 5 How to Remove the Pick Up Unit ...
Страница 200: ...200 KX FLC418RU 14 6 How to Remove the Pick Up Roller ...
Страница 201: ...201 KX FLC418RU 14 7 How to Remove the Antenna Board ...
Страница 202: ...202 KX FLC418RU 14 8 How to Remove the Operation Board ...
Страница 203: ...203 KX FLC418RU 14 9 How to Remove the Lower Flame 14 10 How to Remove the Separation Rubber ...
Страница 204: ...204 KX FLC418RU 14 11 How to Remove the Transfer Roller ...
Страница 205: ...205 KX FLC418RU 14 12 How to Remove the Separation Roller ...
Страница 206: ...206 KX FLC418RU 14 13 How to Remove the Bottom Plate 14 14 How to Remove the Analog Board ...
Страница 207: ...207 KX FLC418RU 14 15 How to Remove the RF Unit 14 16 How to Remove the High Volt age Power Board ...
Страница 208: ...208 KX FLC418RU 14 17 How to Remove the Laser Unit 14 18 How to Remove the Fan Unit ...
Страница 209: ...209 KX FLC418RU 14 19 How to Remove the Low Voltage Power Board 14 20 How to Remove the Digital Board ...
Страница 210: ...210 KX FLC418RU 14 21 How to Remove the Main Motor ...
Страница 211: ...211 KX FLC418RU 14 22 How to Remove the Fuser Unit ...
Страница 212: ...212 KX FLC418RU 14 23 How to Remove the CIS ...
Страница 213: ...213 KX FLC418RU 14 24 Installation Position of the Lead ...
Страница 214: ...214 KX FLC418RU ...
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Страница 216: ...216 KX FLC418RU ...
Страница 217: ...217 KX FLC418RU ...
Страница 218: ...218 KX FLC418RU 14 25 How to Remove the Cordless Handset Board ...
Страница 219: ...219 KX FLC418RU 14 25 1 How to Replace the LCD ...
Страница 220: ...220 KX FLC418RU 14 26 How to Remove the Charger Board ...
Страница 252: ...252 KX FLC418RU 16 8 8 Timing Chart When Printing Two Sheets of Paper BASIC ...
Страница 253: ...253 KX FLC418RU 16 8 9 Timing Chart Initializing Long ...
Страница 254: ...254 KX FLC418RU 16 8 10 Timing Chart when the registration sensor is turned OFF then ON during initializ ing ...
Страница 255: ...255 KX FLC418RU 16 9 Terminal Guide of the ICs Transistors and Diodes 16 9 1 Digital Board 16 9 2 Analog Board ...
Страница 257: ...257 KX FLC418RU 16 9 7 Cordless Handset Board ...
Страница 261: ...261 KX FLC418RU 16 11 1 NG Example ...
Страница 262: ...262 KX FLC418RU 16 12 Test Chart 16 12 1 ITU T No 1 Test Chart ...
Страница 263: ...263 KX FLC418RU 16 12 2 ITU T No 2 Test Chart ...
Страница 264: ...264 KX FLC418RU Memo ...
Страница 273: ...273 KX FLC418RU Memo ...
Страница 286: ...286 KX FLC418RU Memo ...
Страница 292: ...292 KX FLC418RU 18 8 2 Bottom View KX FLC418RU HIGH VOLTAGE POWER SUPPLY BOARD BOTTOM VIEW IC101 EUK1MNA90HA ...
Страница 298: ...298 KX FLC418RU Memo ...
Страница 316: ...316 KX FLC418RU 19 1 9 Motor Section 19 1 9 1 Exploded View 300 302 303 304 305 306 307 308 301 K ...
Страница 318: ...318 KX FLC418RU 19 1 10 Fan Motor Section 19 1 10 1 Exploded View 320 321 322 323 324 325 326 327 328 A A A A ...
Страница 322: ...322 KX FLC418RU 19 1 12 Gear Section 19 1 12 1 Exploded View 360 361 362 363 364 365 366 367 368 369 370 371 372 A ...
Страница 340: ...340 KX FLC418RU K T KXFLC418RU ...