8.3.3. ROM (IC2)
This 512 KB ROM (OTPROM or MASKROM) has 32 KB of common area and bank area (BK4~BK 63).
The capacity of each bank is 8 KB.
The addresses of the common area are from 0000H to 7FFFH, and addresses 8000H to 9FFFH are for the bank area.
8.3.4. RAM (IC4)
This 128 KB RAM has 8 KB of common area and bank area (BK0, BK1).
The capacity of each bank is 12 KB.
The addresses of the common area are from D000H to EFFFH, and addresses A000H to CFFFH are for the bank area.
8.3.5. RESET CIRCUIT (WATCH DOG TIMER)
The output signal (reset) from pin 4 of the voltage detect IC (IC3) is input to the ASIC (IC1) 114 pin.
1. During a momentary power interruption, a negative reset pulse of 50~70 msec is generated and the system is reset completely.
2. The watch dog timer, built-in the ASIC (IC1), is initialized by the CPU about every 1.5 ms.
When a watch dog error occurs, pin 115 of the ASIC (IC1) becomes low level.
The terminal of the ´WDERR´ signal is connected to the reset line, so the ´WDERR´ signal works as the reset signal.
110
KX-FT907BX-B / KX-FT907BX-W
Содержание KX-FT907BX-B
Страница 25: ...6 DISASSEMBLY INSTRUCTIONS 6 1 HOW TO REMOVE PAPER STACKER 25 KX FT907BX B KX FT907BX W ...
Страница 26: ...6 2 HOW TO REMOVE THE OPERATION PANEL BLOCK 26 KX FT907BX B KX FT907BX W ...
Страница 27: ...6 3 HOW TO REMOVE THE OPERATION BOARD AND LCD 27 KX FT907BX B KX FT907BX W ...
Страница 28: ...6 4 HOW TO REMOVE THE IMAGE SENSOR 28 KX FT907BX B KX FT907BX W ...
Страница 29: ...6 5 HOW TO REMOVE THE THERMAL HEAD AND CUTTER UNIT 29 KX FT907BX B KX FT907BX W ...
Страница 30: ...6 6 HOW TO REMOVE THE DOCUMENT TRAY 30 KX FT907BX B KX FT907BX W ...
Страница 31: ...6 7 HOW TO REMOVE THE BOTTOM FRAME 31 KX FT907BX B KX FT907BX W ...
Страница 32: ...6 8 HOW TO REMOVE THE HANDSET CRADLE CABINET AND SPEAKER 32 KX FT907BX B KX FT907BX W ...
Страница 33: ...6 9 HOW TO REMOVE THE DIGITAL ANALOG AND POWER SUPPLY BOARD AND AC INLET 33 KX FT907BX B KX FT907BX W ...
Страница 34: ...6 10 HOW TO REMOVE THE ROLLERS 34 KX FT907BX B KX FT907BX W ...
Страница 35: ...6 11 HOW TO REMOVE THE MOTOR BLOCK 35 KX FT907BX B KX FT907BX W ...
Страница 36: ...CROSS REFERENCE HOW TO REMOVE THE THERMAL HEAD AND CUTTER UNIT P 29 36 KX FT907BX B KX FT907BX W ...
Страница 37: ...37 KX FT907BX B KX FT907BX W ...
Страница 38: ...6 12 INSTALLATION POSITION OF THE LEAD WIRES 38 KX FT907BX B KX FT907BX W ...
Страница 39: ...6 13 INSTALLATION OF THERMAL HEAD 39 KX FT907BX B KX FT907BX W ...
Страница 51: ...7 4 6 SERVICE MODE SETTINGS Example of a printed out list 51 KX FT907BX B KX FT907BX W ...
Страница 57: ...7 5 4 4 SKEW CROSS REFERENCE DISASSEMBLY INSTRUCTIONS P 25 57 KX FT907BX B KX FT907BX W ...
Страница 63: ...7 5 5 1 2 SOMETIMES THERE IS A TRANSMIT PROBLEM 63 KX FT907BX B KX FT907BX W ...
Страница 65: ...7 5 5 1 4 THE UNIT CAN COPY BUT CANNOT TRANSMIT RECEIVE 65 KX FT907BX B KX FT907BX W ...
Страница 72: ...Countermeasure 72 KX FT907BX B KX FT907BX W ...
Страница 73: ...73 KX FT907BX B KX FT907BX W ...
Страница 74: ...74 KX FT907BX B KX FT907BX W ...
Страница 75: ...75 KX FT907BX B KX FT907BX W ...
Страница 76: ...76 KX FT907BX B KX FT907BX W ...
Страница 77: ...77 KX FT907BX B KX FT907BX W ...
Страница 78: ...78 KX FT907BX B KX FT907BX W ...
Страница 79: ...79 KX FT907BX B KX FT907BX W ...
Страница 84: ...84 KX FT907BX B KX FT907BX W ...
Страница 87: ...87 KX FT907BX B KX FT907BX W ...
Страница 90: ...7 5 8 3 NG EXAMPLE 90 KX FT907BX B KX FT907BX W ...
Страница 92: ...92 KX FT907BX B KX FT907BX W ...
Страница 94: ...Note Inside the digital board Inside the operation board 94 KX FT907BX B KX FT907BX W ...
Страница 95: ...7 5 9 2 DEFECTIVE ITS INTEGRATED TELEPHONE SYSTEM SECTION 95 KX FT907BX B KX FT907BX W ...
Страница 97: ...2 Troubleshooting Flow Chart 97 KX FT907BX B KX FT907BX W ...
Страница 101: ...CROSS REFERENCE TEST FUNCTIONS P 45 101 KX FT907BX B KX FT907BX W ...
Страница 103: ...8 CIRCUIT OPERATIONS 8 1 CONNECTION DIAGRAM 103 KX FT907BX B KX FT907BX W ...
Страница 105: ...8 2 1 GENERAL BLOCK DIAGRAM 105 KX FT907BX B KX FT907BX W ...
Страница 114: ...8 4 2 BLOCK DIAGRAM 114 KX FT907BX B KX FT907BX W ...
Страница 116: ...116 KX FT907BX B KX FT907BX W ...
Страница 122: ...8 4 6 3 4 COPYING CROSS REFERENCE SENSOR SECTION P 100 122 KX FT907BX B KX FT907BX W ...
Страница 132: ...b Redundancy Compression Process Coding Mode This unit uses one dimensional MH format 132 KX FT907BX B KX FT907BX W ...
Страница 138: ...8 10 2 CIRCUIT DIAGRAM 138 KX FT907BX B KX FT907BX W ...
Страница 144: ...9 REFERENCE MATERIAL DATA 9 1 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 144 KX FT907BX B KX FT907BX W ...
Страница 148: ...Refer to ANALOG BOARD SECTION P 93 148 KX FT907BX B KX FT907BX W ...
Страница 149: ...9 3 TEST CHART 9 3 1 ITU T No 1 TEST CHART 149 KX FT907BX B KX FT907BX W ...
Страница 150: ...9 3 2 ITU T No 2 TEST CHART 150 KX FT907BX B KX FT907BX W ...
Страница 151: ...10 FIXTURES AND TOOLS 151 KX FT907BX B KX FT907BX W ...
Страница 152: ...11 CABINET MECHANICAL 11 1 OPERATION PANEL SECTION 152 KX FT907BX B KX FT907BX W ...
Страница 153: ...11 2 UPPER CABINET SECTION 153 KX FT907BX B KX FT907BX W ...
Страница 154: ...11 3 LOWER CABINET CROSS REFERENCE MOTOR SECTION P 155 154 KX FT907BX B KX FT907BX W ...
Страница 155: ...11 4 MOTOR SECTION 155 KX FT907BX B KX FT907BX W ...
Страница 156: ...11 5 ACTUAL SIZE OF SCREWS 156 KX FT907BX B KX FT907BX W ...
Страница 157: ...12 ACCESSORIES AND PACKING MATERIALS 157 KX FT907BX B KX FT907BX W ...
Страница 173: ...16 MEMO 173 KX FT907BX B KX FT907BX W ...
Страница 180: ...180 KX FT907BX B KX FT907BX W Y M KXFT907BXB KXFT907BXW ...