17
KX-FT981LA-B / KX-FT987LA-B
6.3.2.
Flash Memory (IC2)
This 512KB ROM (FLASH MEMORY) carries a common area of 32KB and bank areas which each have 8KB (BK4~BK63). The
addresses from 0000H to 7FFFH are for the common area and from 8000H to 9FFFH are for the bank areas.
6.3.3.
Dynamic RAM (IC4)
The DRAM serves as CPU and receives memory.
The address is F200H~F3FFH (DRAM access window 1) and F600H~F7FFH (DRAM access window 2).
6.3.4.
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 positive reset pulse of 50~70 msec is generated and the system is reset com-
pletely.
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.
Содержание KX-FT981LA-B
Страница 11: ...11 KX FT981LA B KX FT987LA B 6 Technical Descriptions 6 1 Connection Diagram ...
Страница 13: ...13 KX FT981LA B KX FT987LA B 6 2 1 General Block Diagram ...
Страница 21: ...21 KX FT981LA B KX FT987LA B 6 4 2 Block Diagram ...
Страница 23: ...23 KX FT981LA B KX FT987LA B ...
Страница 63: ...63 KX FT981LA B KX FT987LA B 11 2 2 User Mode KX FT987 ...
Страница 71: ...71 KX FT981LA B KX FT987LA B Countermeasure ...
Страница 72: ...72 KX FT981LA B KX FT987LA B REFERENCE Test Mode P 54 ...
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Страница 74: ...74 KX FT981LA B KX FT987LA B REFERENCE Test Mode P 54 ...
Страница 75: ...75 KX FT981LA B KX FT987LA B REFERENCE Test Mode P 54 ...
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Страница 78: ...78 KX FT981LA B KX FT987LA B REFERENCE Test Mode P 54 ...
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Страница 108: ...108 KX FT981LA B KX FT987LA B NG Wave pattern Note Refer to NG Example P 113 ...
Страница 110: ...110 KX FT981LA B KX FT987LA B I O and Pin No Diagram ...
Страница 113: ...113 KX FT981LA B KX FT987LA B 12 5 6 2 NG Example ...
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Страница 120: ...120 KX FT981LA B KX FT987LA B 12 5 9 2 Troubleshooting Flow Chart ...
Страница 126: ...126 KX FT981LA B KX FT987LA B 12 5 13 Thermal Head Section Refer to Thermal Head P 22 ...
Страница 127: ...127 KX FT981LA B KX FT987LA B 13 Service Fixture Tools ...
Страница 129: ...129 KX FT981LA B KX FT987LA B 14 1 Upper Cabinet Section 14 1 1 How to Remove the Image Sensor CIS and Feed Roller ...
Страница 130: ...130 KX FT981LA B KX FT987LA B 14 1 2 How to Remove the Cutter Unit KX FT987 only ...
Страница 131: ...131 KX FT981LA B KX FT987LA B 14 1 3 How to Remove the Lock Lever and Thermal Head ...
Страница 132: ...132 KX FT981LA B KX FT987LA B 14 2 Lower Cabinet Section 14 2 1 How to Remove the Bottom Frame ...
Страница 133: ...133 KX FT981LA B KX FT987LA B 14 2 2 How to Remove the P C Boards and Power Cord ...
Страница 135: ...135 KX FT981LA B KX FT987LA B 14 3 Operation Panel Section 14 3 1 How to Remove the Operation Panel Block ...
Страница 136: ...136 KX FT981LA B KX FT987LA B 14 3 2 How to Remove the Operation Board LCD and Platen Roller ...
Страница 137: ...137 KX FT981LA B KX FT987LA B 14 3 3 How to Remove the Separation Rubber Flap ...
Страница 138: ...138 KX FT981LA B KX FT987LA B 14 4 Installation Position of the Lead Wires ...
Страница 139: ...139 KX FT981LA B KX FT987LA B ...
Страница 147: ...147 KX FT981LA B KX FT987LA B 15 2 3 4 Copying REFERENCE Sensor Section P 123 ...
Страница 152: ...152 KX FT981LA B KX FT987LA B 16 1 4 Power Supply Board ...
Страница 154: ...154 KX FT981LA B KX FT987LA B 16 3 Test Chart 16 3 1 ITU T No 1 Test Chart ...
Страница 155: ...155 KX FT981LA B KX FT987LA B 16 3 2 ITU T No 2 Test Chart ...
Страница 168: ...168 KX FT981LA B KX FT987LA B MEMO ...
Страница 177: ...177 KX FT981LA B KX FT987LA B 20 Exploded View and Replacement Parts List 20 1 Cabinet and Mechanical Parts Location ...
Страница 178: ...178 KX FT981LA B KX FT987LA B 20 1 1 Operation Panel Section KX FT981 ...
Страница 179: ...179 KX FT981LA B KX FT987LA B 20 1 2 Operation Panel Section KX FT987 ...
Страница 180: ...180 KX FT981LA B KX FT987LA B 20 1 3 Upper Cabinet Section ...
Страница 181: ...181 KX FT981LA B KX FT987LA B 20 1 4 Lower Cabinet Section ...
Страница 182: ...182 KX FT981LA B KX FT987LA B 20 1 5 Gear Block Section ...
Страница 183: ...183 KX FT981LA B KX FT987LA B 20 1 6 Screws ...
Страница 184: ...184 KX FT981LA B KX FT987LA B 20 1 7 Accessories and Packing Materials ...
Страница 192: ...192 KX FT981LA B KX FT987LA B K N KXFT981LAB KXFT987LAB ...