21
KX-FP701LA
6.3.7.
RTC Backup Circuit
1.
Function
This unit has a lithium battery (BAT401) which works for Real Time Clock IC (RTC: inside IC1).
The RTC continues to work, backed up by a lithium battery even when the power switch is OFF.
The user parameters for autodial numbers, the system setup data and others are in the FLASH MEMORY (IC6).
2.
RTC Inside (IC1) Backup Circuit Operation
When the power switch is turned ON, power is supplied through Q7 to the RTC (inside IC1). At this time, the voltage at pin 14
of the IC1 is +2.5V. When the power switch is turned OFF, the BAT401 supplies power to RTC through D407 and Q505. The
voltage at pin 14 of IC1 is about +2.2V. When the power switch is OFF and the voltage of +3.3V decreases, pin 14 of RTC
(IC1) becomes roughly the same voltage as the battery voltage. RTC goes into the backup mode, in which the power con-
sumption is lower.
Содержание KX-FP701LA
Страница 9: ...9 KX FP701LA 4 General Introduction 4 1 Error Message 4 1 1 Display 4 1 2 Report ...
Страница 11: ...11 KX FP701LA 6 Technical Descriptions 6 1 Connection Diagram ...
Страница 13: ...13 KX FP701LA 6 2 1 General Block Diagram ...
Страница 15: ...15 KX FP701LA 6 3 2 Memory Map ...
Страница 24: ...24 KX FP701LA 6 4 2 Block Diagram ...
Страница 26: ...26 KX FP701LA ...
Страница 41: ...41 KX FP701LA b Redundancy Compression Process Coding Mode This unit uses one dimensional MH format ...
Страница 68: ...68 KX FP701LA 11 2 2 Service Mode Settings Note The above values are the default values ...
Страница 75: ...75 KX FP701LA Countermeasure ...
Страница 76: ...76 KX FP701LA REFERENCE 10Test Mode P 60 ...
Страница 77: ...77 KX FP701LA REFERENCE 10Test Mode P 60 ...
Страница 78: ...78 KX FP701LA REFERENCE 10Test Mode P 60 ...
Страница 79: ...79 KX FP701LA REFERENCE 10Test Mode P 60 ...
Страница 80: ...80 KX FP701LA ...
Страница 81: ...81 KX FP701LA ...
Страница 82: ...82 KX FP701LA REFERENCE 10Test Mode P 60 ...
Страница 86: ...86 KX FP701LA ...
Страница 111: ...111 KX FP701LA ...
Страница 118: ...118 KX FP701LA I O and Pin No Diagram ...
Страница 120: ...120 KX FP701LA Other NG example while the power is ON and the LCD displays the following ...
Страница 121: ...121 KX FP701LA 12 5 5 2 NG Example ...
Страница 125: ...125 KX FP701LA 12 5 7 2 Troubleshooting Flow Chart ...
Страница 129: ...129 KX FP701LA 12 5 9 5 Check the HOOK Switch SW101 ...
Страница 130: ...130 KX FP701LA 12 5 10 CIS Contact Image Sensor Section REFERENCE 1 10Test Mode P 60 Refer to 6 4 4 Scanning Block P 27 ...
Страница 131: ...131 KX FP701LA 12 5 11 Thermal Head Section Note Refer to 6 4 3 Thermal Head P 25 ...
Страница 132: ...132 KX FP701LA 13 Service Fixture Tools ...
Страница 135: ...135 KX FP701LA 14 2 DISASSEMBLY PROCEDURE 14 2 1 HOW TO REMOVE THE PAPER TRAY AND RECORDING PAPER SUPPORT ...
Страница 136: ...136 KX FP701LA 14 2 2 HOW TO REMOVE THE OPERATION PANEL BLOCK ...
Страница 137: ...137 KX FP701LA 14 2 3 HOW TO REMOVE THE OPERATION BOARD AND LCD ...
Страница 138: ...138 KX FP701LA 14 2 4 HOW TO REMOVE THE SEPARATION HOLDER AND EXIT ROLLER ...
Страница 139: ...139 KX FP701LA 14 2 5 HOW TO REMOVE THE IMAGE SENSOR CIS ...
Страница 140: ...140 KX FP701LA 14 2 6 HOW TO REMOVE THE THERMAL HEAD ...
Страница 141: ...141 KX FP701LA 14 2 7 HOW TO REMOVE THE PLATEN ROLLER AND BACK COVER ...
Страница 142: ...142 KX FP701LA 14 2 8 HOW TO REMOVE THE PICKUP ROLLER ...
Страница 143: ...143 KX FP701LA 14 2 9 HOW TO REMOVE THE CASSETTE LEVER ...
Страница 144: ...144 KX FP701LA 14 2 10 HOW TO REMOVE THE BOTTOM FRAME ...
Страница 145: ...145 KX FP701LA 14 2 11 HOW TO REMOVE THE DIGITAL ANALOG SENSOR BOARDS ...
Страница 146: ...146 KX FP701LA 14 2 12 HOW TO REMOVE THE POWER SUPPLY BOARD AND AC CORD ...
Страница 147: ...147 KX FP701LA 14 2 13 HOW TO REMOVE THE MOTOR BLOCK AND SEPARATION ROLLER ...
Страница 148: ...148 KX FP701LA 14 2 14 HOW TO REMOVE THE GEARS OF MOTOR BLOCK ...
Страница 149: ...149 KX FP701LA 14 2 15 INSTALLATION POSITION OF THE LEAD WIRES ...
Страница 163: ...163 KX FP701LA 16 1 4 Power Supply Board 16 1 5 Interface Board ...
Страница 166: ...166 KX FP701LA 16 3 Test Chart 16 3 1 ITU T No 1 Test chart ...
Страница 167: ...167 KX FP701LA 16 3 2 ITU T No 2 Test Chart ...
Страница 168: ...168 KX FP701LA 16 3 3 Test Chart ...
Страница 169: ...169 KX FP701LA MEMO ...
Страница 180: ...180 KX FP701LA MEMO ...
Страница 188: ...188 KX FP701LA MEMO ...
Страница 194: ...194 KX FP701LA 20 1 2 Operation Panel Section ...
Страница 195: ...195 KX FP701LA 20 1 3 Back Cover Section ...
Страница 196: ...196 KX FP701LA ...
Страница 197: ...197 KX FP701LA 20 1 4 Upper Cabinet Section ...
Страница 198: ...198 KX FP701LA 20 1 5 Lower Cabinet Section ...
Страница 199: ...199 KX FP701LA 20 1 6 Gear Block Section ...
Страница 200: ...200 KX FP701LA 20 1 7 Screws ...
Страница 201: ...201 KX FP701LA 20 1 8 Accessories and Packing Materials ...