42
KX-FP215
6.7.
NCU Section
6.7.1.
General
NCU is the interface with the telephone line. It is composed of Bell detection circuit, Pulse dial circuit, Line amplifier and sidetone
circuits. The following is a brief explanation of each circuit.
6.7.2.
EXT. TEL. Line Relay (RLY101)
1.
Circuit Operation
Normally, this relay switches to the external telephone side (break) and switches to the tel line side (make) while OFF-HOOK.
{ IC501 (130) High Level
→
CN507 (14) High Level }
→
CN101 (14) High Level
→
Q111 ON
→
RLY101 (make)
6.7.3.
Bell Detection Circuit
1.
Circuit Operation
The signal waveform for each section is indicated below. The signal (low level section) input to pin 23 of ASIC IC501 on the
digital board is illustrated.
TEL LINE
→
PC103 (1, 2
→
4)
→
IC501 (23): Bell
6.7.4.
Pulse Dial Circuit and ON/OFF Hook Circuit
IC501 (130)
→
LOW LEVEL (MAKE)
→
Q111 ON (MAKE)
→
RLY101 ON (MAKE)
→
TEL LINE
IC501 (130)
→
HIGH LEVEL (BREAK)
→
Q111 OFF (BREAK)
→
RLY101 OFF (BREAK)
→
TEL LINE
Содержание KX-FP215
Страница 12: ...12 KX FP215 6 Technical Descriptions 6 1 Connection Diagram ...
Страница 14: ...14 KX FP215 6 2 1 General Block Diagram ...
Страница 16: ...16 KX FP215 6 3 2 Memory Map ...
Страница 25: ...25 KX FP215 6 4 2 Block Diagram ...
Страница 27: ...27 KX FP215 ...
Страница 40: ...40 KX FP215 b Redundancy Compression Process Coding Mode This unit uses one dimensional MH format ...
Страница 66: ...66 KX FP215 11 2 The Example of the Printed List 11 2 1 User Mode Note The above values are the default values ...
Страница 67: ...67 KX FP215 11 2 2 Service Mode Settings Note The above values are the default values ...
Страница 74: ...74 KX FP215 Countermeasure ...
Страница 75: ...75 KX FP215 REFERENCE Test Mode P 58 ...
Страница 76: ...76 KX FP215 REFERENCE Test Mode P 58 ...
Страница 77: ...77 KX FP215 REFERENCE Test Mode P 58 ...
Страница 78: ...78 KX FP215 REFERENCE Test Mode P 58 ...
Страница 79: ...79 KX FP215 ...
Страница 80: ...80 KX FP215 ...
Страница 81: ...81 KX FP215 REFERENCE Test Mode P 58 ...
Страница 85: ...85 KX FP215 ...
Страница 110: ...110 KX FP215 ...
Страница 117: ...117 KX FP215 I O and Pin No Diagram ...
Страница 119: ...119 KX FP215 Other NG example while the power is ON and the LCD displays the following ...
Страница 120: ...120 KX FP215 12 5 5 2 NG Example ...
Страница 124: ...124 KX FP215 Note Check to the SP Phone Rx Tx signal routes Refer to Check Sheet for Signal Route P 121 ...
Страница 126: ...126 KX FP215 12 5 8 2 Troubleshooting Flow Chart ...
Страница 131: ...131 KX FP215 12 5 11 CIS Contact Image Sensor Section REFERENCE 1 Test Mode P 58 Refer to Scanning Block P 28 ...
Страница 132: ...132 KX FP215 12 5 12 Thermal Head Section Note Refer to Thermal Head P 26 ...
Страница 133: ...133 KX FP215 13 Service Fixture Tools ...
Страница 137: ...137 KX FP215 14 3 Disassembly Procedure 14 3 1 How to Remove the Image Sensor CIS ...
Страница 138: ...138 KX FP215 14 3 2 How to Remove the Thermal Head ...
Страница 139: ...139 KX FP215 ...
Страница 140: ...140 KX FP215 14 3 3 How to Remove the Bottom Frame ...
Страница 141: ...141 KX FP215 14 3 4 How to Remove the P C Boards and Speaker ...
Страница 142: ...142 KX FP215 14 3 5 How to Remove the Power Supply Board and AC cord ...
Страница 143: ...143 KX FP215 14 3 6 How to Remove the Gear Block and Separation Roller ...
Страница 144: ...144 KX FP215 14 3 7 How to Remove the Gears Motors and Arms of the Gear Block ...
Страница 145: ...145 KX FP215 ...
Страница 146: ...146 KX FP215 14 3 8 How to Remove the Handset Cradle and Hook Switch Board ...
Страница 147: ...147 KX FP215 14 3 9 How to Remove the Back Cover ...
Страница 148: ...148 KX FP215 14 3 10 How to Remove the Platen Roller and Lock Lever ...
Страница 149: ...149 KX FP215 ...
Страница 150: ...150 KX FP215 14 3 11 How to Remove the Pickup Roller ...
Страница 151: ...151 KX FP215 14 3 12 How to Remove the Operation Panel ...
Страница 152: ...152 KX FP215 14 3 13 How to Remove the Operation Board and LCD ...
Страница 153: ...153 KX FP215 14 3 14 How to Remove the Separation Holder and Exit Roller ...
Страница 154: ...154 KX FP215 14 3 15 Installation Position of the Lead Wires 14 3 15 1 Lower Section ...
Страница 155: ...155 KX FP215 ...
Страница 156: ...156 KX FP215 ...
Страница 157: ...157 KX FP215 14 3 15 2 Operation Panel and Mic Board Section ...
Страница 166: ...166 KX FP215 15 2 3 4 Copying Note See Sensor Locations in Sensors and Switches P 31 REFERENCE Sensor Section P 129 ...
Страница 172: ...172 KX FP215 16 1 4 Power Supply Board 16 1 5 Interface Board ...
Страница 174: ...174 KX FP215 16 3 Test Chart 16 3 1 ITU T No 1 Test chart ...
Страница 175: ...175 KX FP215 16 3 2 ITU T No 2 Test Chart ...
Страница 176: ...176 KX FP215 16 3 3 Test Chart ...
Страница 177: ...177 KX FP215 Memo ...
Страница 198: ...198 KX FP215 20 1 2 Operation Panel Section ...
Страница 199: ...199 KX FP215 20 1 3 Upper Cabinet Section ...
Страница 200: ...200 KX FP215 20 1 4 Back Cover Section ...
Страница 201: ...201 KX FP215 ...
Страница 202: ...202 KX FP215 20 1 5 Lower Cabinet Section ...
Страница 203: ...203 KX FP215 20 1 6 Gear Block Section ...
Страница 204: ...204 KX FP215 20 1 7 Screws ...
Страница 205: ...205 KX FP215 20 1 8 Accessories and Packing Materials ...
Страница 220: ...8 KX FP215 MEMO ...