system setup date and so on are stored in the RAM (IC3). / The
RTC continues functioning, even when the power switch is OFF,
backed up by a lithium battery.
2. Circuit Operation
When the power is turned ON, power is supplied RAM (IC3) and
RTC (IC1). / At this time, the voltage at pin 28 of RAM is +5V and
pin 3 of RTC (IC1) is +3.3V. When the power is turned OFF, the
battery supplies the power to RAM and RTC through J1, R14,D1 or
D7. At that time, the voltage at pin 28 of RAM and pin 3 of IC1 are
about +2.5V. When the power is OFF and the +5V and +3.3V
voltages decrease, IC4 detects them and LOW is input to pin 17 of
IC1. Pin 16 of IC1 outputs the reset signals. Pin 28 of RAM (IC3)
and pin 3 of RTC (IC1) become low, then RAM and RTC (IC1) go
into the back up mode, when the power consumption is lower.
129
Содержание KX-FT71LA-B
Страница 10: ...1 11 2 CCIT NO 2 TEST CHART 10 ...
Страница 11: ...1 12 LOCATION OF CONTROLS 1 12 1 OVERVIEW 11 ...
Страница 22: ...22 ...
Страница 32: ...4 Close the cover securely by pushing down on both sides 32 ...
Страница 33: ...5 Tear off the excess paper by pulling it towards you 33 ...
Страница 41: ...CROSS REFERENCE SENSOR SECTION DISASSEMBLY INSTRUCTIONS 2 3 4 3 MULTIPLE FEED 41 ...
Страница 42: ...CROSS REFERENCE DISASSEMBLY INSTRUCTIONS 2 3 4 4 SKEW 42 ...
Страница 43: ...CROSS REFERENCE DISASSEMBLY INSTRUCTIONS 2 3 4 5 IMAGE IS DISTORTED WHEN PRINTING 43 ...
Страница 45: ...CROSS REFERENCE DIGITAL BOARD SECTION TEST FUNCTIONS 2 3 4 7 SKEWED RECEIVING IMAGE 45 ...
Страница 47: ...CROSS REFERENCE DISASSEMBLY INSTRUCTIONS 47 ...
Страница 59: ...Error code table 59 ...
Страница 62: ...62 ...
Страница 63: ...CROSS REFERENCE TEST FUNCTIONS 63 ...
Страница 64: ...CROSS REFERENCE TEST FUNCTIONS 64 ...
Страница 65: ...CROSS REFERENCE TEST FUNCTIONS 65 ...
Страница 66: ...CROSS REFERENCE TEST FUNCTIONS 66 ...
Страница 67: ...67 ...
Страница 68: ...68 ...
Страница 69: ...69 ...
Страница 75: ...Normal Wave Patterns 75 ...
Страница 78: ...CROSS REFERENCE NG EXAMPLE CHECK THE STATUS OF THE DIGITAL BOARD 78 ...
Страница 79: ...CROSS REFERENCE CHECK THE STATUS OF THE DIGITAL BOARD 2 3 6 2 NG EXAMPLE 79 ...
Страница 84: ...84 ...
Страница 85: ...85 ...
Страница 86: ...86 ...
Страница 90: ...2 3 11 READ SECTION Refer to SCANNING BLOCK 2 3 12 THERMAL HEAD SECTION Refer to THERMAL HEAD 90 ...
Страница 92: ...2 4 3 USER MODE The list below is an example of the SYSTEM SETUP LIST the unit prints out 92 ...
Страница 93: ...Note The above values are the default values 2 4 4 SERVICE FUNCTION TABLE 93 ...
Страница 103: ...3 DISASSEMBLY INSTRUCTIONS 3 1 HOW TO REMOVE THE HANDSET CRADLE CABINET HOOK BUTTON AND SPEAKER 103 ...
Страница 104: ...3 2 HOW TO REMOVE THE OPERATION BLOCK 104 ...
Страница 105: ...3 3 HOW TO REMOVE THE OPERATION BOARD AND LCD 105 ...
Страница 106: ...3 4 HOW TO REMOVE THE BOTTOM FRAME AND ANALOG BOARD 106 ...
Страница 107: ...3 5 HOW TO REMOVE THE DIGITAL POWER SUPPLY BOARD AND AC INLET 107 ...
Страница 108: ...3 6 HOW TO REMOVE THE MOTOR BLOCK AND SEPARATION ROLLER 108 ...
Страница 109: ...3 7 HOW TO REMOVE THE MOTOR AND GEARS OF MOTOR BLOCK 109 ...
Страница 110: ...3 8 HOW TO REMOVE THE IMAGE SENSOR CIS 110 ...
Страница 111: ...3 9 HOW TO REMOVE THE DOCUMENT FEED ROLLER 111 ...
Страница 112: ...3 10 HOW TO REMOVE THE THERMAL HEAD 112 ...
Страница 113: ...3 11 INSTALLATION POSITION OF THE LEAD WIRES 113 ...
Страница 117: ...4 4 BRIDGE MODIFICATION PROCEDURE 5 CIRCUIT OPERATIONS 5 1 CONNECTION DIAGRAM 117 ...
Страница 122: ...38 VSS DG Ground 122 ...
Страница 140: ...5 4 6 3 2 SCANNING CROSS REFERENCE SENSOR SECTION 5 4 6 3 3 PRINTING 140 ...
Страница 141: ...Note See 6 5 SENSERS AND SWITCHES 5 4 6 3 4 COPYING 141 ...
Страница 163: ...8 CABINET MECHANICAL AND ELECTRICAL PARTS LOCATION 8 1 OPERATION PANEL SECTION 163 ...
Страница 164: ...164 ...
Страница 165: ...8 2 UPPER CABINET SECTION 165 ...
Страница 166: ...8 3 LOWER CABINET P C B SECTION CROSS REFFERENCE MOTOR SECTION 8 4 MOTOR SECTION 166 ...
Страница 167: ...8 5 ACTUAL SIZE OF SCREWS 167 ...
Страница 168: ...9 ACCESSORIES AND PACKING MATERIALS 10 REPLACEMENT PARTS LIST 168 ...
Страница 179: ...L3 PQ4R10XJ000 0 S 179 ...