102
KX-MB783BR
12.3. TROUBLESHOOTING DETAILS
12.3.1. OUTLINE
Troubleshooting is for recovering quality and reliability by determining the broken component and replacing, adjusting or cleaning it
as required. First, determine the problem then decide the troubleshooting method. If you have difficulty finding the broken part,
determine which board is broken. (For example: the Main PCB, Sensor PCB, etc.) The claim tag from a customer or dealer may use
different expressions for the same problem, as they are not a technician or engineer. Using your experience, test the problem area
corresponding to the claim. Also, returns from a customer or dealer often have a claim tag. For these cases as well, you need to
determine the problem. Test the unit using the simple check list on
(P.104). Difficult problems may be hard to
determine, so repeated testing is necessary.
12.3.2. STARTING TROUBLE SHOOTING
Determine the symptom and the troubleshooting method.
CROSS REFERENCE:
Summary of Contents for KX-MB783BR
Page 9: ...9 KX MB783BR 4 3 ERROR MESSAGE 4 3 1 DISPLAY ...
Page 10: ...10 KX MB783BR 4 3 2 REPORT 4 3 3 OTHERS ...
Page 12: ...12 KX MB783BR 6 Technical Descriptions 6 1 CONNECTION DIAGRAM ...
Page 35: ...35 KX MB783BR 6 8 2 FLAT TORQUE 1 2 PHASE EXCITATION HALF STEP 1 Timing chart 2 Wave form ...
Page 36: ...36 KX MB783BR 6 8 3 W 1 2 PHASE EXCITATION QUARTER STEP 1 Timing chart 2 Wave form ...
Page 40: ...40 KX MB783BR 6 11 LSU Laser Scanning Unit SECTION ...
Page 41: ...41 KX MB783BR ...
Page 49: ...49 KX MB783BR 6 12 9 2 Drum Detection ...
Page 55: ...55 KX MB783BR ...
Page 60: ...60 KX MB783BR DC DC Main Board Supply ...
Page 61: ...61 KX MB783BR wave form ...
Page 120: ...120 KX MB783BR 12 3 7 6 LIGHT PRINT CROSS REFERENCE HIGH VOLTAGE SECTION P 165 ...
Page 122: ...122 KX MB783BR 12 3 8 2 THE RECORDING PAPER IS WAVED OR WRINKLED ...
Page 123: ...123 KX MB783BR 12 3 8 3 SKEW ...
Page 125: ...125 KX MB783BR 12 3 8 5 THE RECORDING PAPER JAM ...
Page 128: ...128 KX MB783BR CROSS REFERENCE ENGINE MOTOR P 157 ...
Page 129: ...129 KX MB783BR 12 3 9 2 SKEW ADF ...
Page 131: ...131 KX MB783BR 12 3 9 6 BLACK OR WHITE VERTICAL LINE IS COPIED ...
Page 140: ...140 KX MB783BR ...
Page 142: ...142 KX MB783BR ...
Page 143: ...143 KX MB783BR CROSS REFERENCE TEST FUNCTIONS P 81 ...
Page 144: ...144 KX MB783BR CROSS REFERENCE TEST FUNCTIONS P 81 ...
Page 145: ...145 KX MB783BR CROSS REFERENCE TEST FUNCTIONS P 81 ...
Page 146: ...146 KX MB783BR CROSS REFERENCE TEST FUNCTIONS P 81 ...
Page 147: ...147 KX MB783BR ...
Page 148: ...148 KX MB783BR ...
Page 149: ...149 KX MB783BR CROSS REFERENCE TEST FUNCTIONS P 81 ...
Page 157: ...157 KX MB783BR 12 3 17 MOTOR SECTION 12 3 17 1 ENGINE MOTOR ...
Page 158: ...158 KX MB783BR 12 3 17 2 FB Flatbed MOTOR ...
Page 159: ...159 KX MB783BR 12 3 17 3 ADF MOTOR ADF provided model only ...
Page 160: ...160 KX MB783BR 12 3 18 LSU SECTION CROSS REFERENCE LSU Laser Scanning Unit SECTION P 40 ...
Page 161: ...161 KX MB783BR 12 3 19 CIS CONTROL SECTION ...
Page 162: ...162 KX MB783BR CROSS REFERENCE TEST FUNCTIONS P 81 ...
Page 164: ...164 KX MB783BR ...
Page 165: ...165 KX MB783BR 12 3 21 HIGH VOLTAGE SECTION 1 Main ...
Page 166: ...166 KX MB783BR 2 CHG GRID 3 TRA ...
Page 167: ...167 KX MB783BR 3 DEV DC TRA ...
Page 168: ...168 KX MB783BR 12 3 22 USB SECTION Troubleshooting 1 Confirmation of the PC settings ...
Page 169: ...169 KX MB783BR 2 Confirmation of the main unit ...
Page 171: ...171 KX MB783BR Waveform of normal operation ...
Page 173: ...173 KX MB783BR 2 When 100Base TX enabled deviced is connected ...
Page 174: ...174 KX MB783BR 3 When 10Base T enabled device is connected ...
Page 177: ...177 KX MB783BR 12 3 24 MAIN BOARD SECTION 3 3V TROUBLESHOOTING GUIDE ...
Page 178: ...178 KX MB783BR 1 2V TROUBLESHOOTING GUIDE ...
Page 182: ...182 KX MB783BR When the document has jammed near the document exit 3 Close the ADF cover ...
Page 188: ...188 KX MB783BR 5 Close the top cover until locked ...
Page 191: ...191 KX MB783BR 13 Service Fixture Tools ...
Page 193: ...193 KX MB783BR 14 1 ADF SECTION ...
Page 194: ...194 KX MB783BR 14 2 REMOVE ADF SECTION 1 ...
Page 195: ...195 KX MB783BR 14 3 REMOVE ADF SECTION ...
Page 196: ...196 KX MB783BR 14 4 REMOVE TOP COVER SECTION ...
Page 197: ...197 KX MB783BR 14 5 REMOVE SCANNER GLASS SECTION ...
Page 198: ...198 KX MB783BR 14 6 REMOVE OPERATION PANEL SECTION ...
Page 199: ...199 KX MB783BR 14 7 LEFT SIDE SECTION 14 8 REMOVE MAIN BOARD ...
Page 200: ...200 KX MB783BR 14 9 REMOVE GEAR CHASSIS SECTION ...
Page 201: ...201 KX MB783BR 14 10 REMOVE PAPER FEED ROLLER 14 11 RIGHT SIDE SECTION ...
Page 202: ...202 KX MB783BR 14 12 REMOVE RIGHT SIDE COVER SECTION ...
Page 203: ...203 KX MB783BR 14 13 LOWER SIDE CABINET SECTION ...
Page 204: ...204 KX MB783BR 14 14 REMOVE RIGHT CASSETTE GUIDE 14 15 REMOVE PICK UP BOARD ...
Page 205: ...205 KX MB783BR 14 16 REMOVE HIGH VOLTAGE POWER BOARD ...
Page 206: ...206 KX MB783BR 14 17 REMOVE PICK UP ROLLER UNIT ...
Page 207: ...207 KX MB783BR 14 18 REMOVE LOW VOLTAGE POWER BOARD ...
Page 208: ...208 KX MB783BR 14 19 REMOVE FUSER UNIT ...
Page 209: ...209 KX MB783BR 14 20 Installation Position of The Lead 14 20 1 MAIN BAORD SECTION ...
Page 210: ...210 KX MB783BR 14 20 2 BOTTOM PART SECTION ...
Page 211: ...211 KX MB783BR 14 20 3 SIDE CABINET SECTION ...
Page 212: ...212 KX MB783BR 14 20 4 HIGH VOLTAGE POWER SUPPLY BOARD SECTION ...
Page 213: ...213 KX MB783BR 14 20 5 LOW VOLTAGE POWER SUPPLY BOARD SECTION ...
Page 214: ...214 KX MB783BR 14 20 6 AC INLET SECTION 14 20 7 SOLENOID LEAD SECTION ...
Page 227: ...227 KX MB783BR 15 4 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 15 4 1 MAIN BOARD 1 ...
Page 228: ...228 KX MB783BR 15 4 2 MAIN BOARD 2 15 4 3 OPERATION BOARD ...
Page 232: ...232 KX MB783BR 15 6 1 NG EXAMPLE ...
Page 233: ...233 KX MB783BR 15 7 TEST CHART 15 7 1 ITU T No 1 TEST CHART ...
Page 234: ...234 KX MB783BR 15 7 2 ITU T No 2 TEST CHART ...
Page 239: ...239 KX MB783BR MEMO ...
Page 248: ...248 KX MB783BR Memo ...
Page 257: ...257 KX MB783BR 18 1 2 TOP COVER SECTION ...
Page 258: ...258 KX MB783BR 18 1 3 ADF SECTION ...
Page 259: ...259 KX MB783BR 18 1 4 MOTOR SECTION ...
Page 260: ...260 KX MB783BR 18 1 5 LOWER CABINET SECTION ...
Page 261: ...261 KX MB783BR 18 1 6 UPPER CABINET SECTION ...
Page 262: ...262 KX MB783BR 18 1 7 FUSER SECTION ...
Page 263: ...263 KX MB783BR 18 1 8 LOWERSIDE CABINET ...
Page 264: ...264 KX MB783BR 18 1 9 GEAR SECTION 1 ...
Page 265: ...265 KX MB783BR 18 1 10 GEAR SECTION 2 ...
Page 266: ...266 KX MB783BR 18 1 11 CASSETTE OUTPUT TRAY ...
Page 267: ...267 KX MB783BR 18 1 12 ACTUAL SIZE OF SCREWS AND WASHERS ...
Page 268: ...268 KX MB783BR 18 1 13 ACCESSORIES AND PACKING MATERIALS ...