40
KX-FP206CX/KX-FP218CX
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 (RL101)
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)
→
RL101 ON (MAKE)
→
TEL LINE
IC501 (130)
→
HIGH LEVEL (BREAK)
→
Q111 OFF (BREAK)
→
RL101 OFF (BREAK)
→
TEL LINE
Summary of Contents for KMF0609058CE
Page 10: ...10 KX FP206CX KX FP218CX 6 Technical Descriptions 6 1 Connection Diagram ...
Page 12: ...12 KX FP206CX KX FP218CX 6 2 1 General Block Diagram ...
Page 14: ...14 KX FP206CX KX FP218CX 6 3 2 Memory Map ...
Page 23: ...23 KX FP206CX KX FP218CX 6 4 2 Block Diagram ...
Page 25: ...25 KX FP206CX KX FP218CX ...
Page 67: ...67 KX FP206CX KX FP218CX 11 2 1 2 KX FP218CX Note The above values are the default values ...
Page 76: ...76 KX FP206CX KX FP218CX REFERENCE Test Mode P 57 ...
Page 77: ...77 KX FP206CX KX FP218CX REFERENCE Test Mode P 57 ...
Page 78: ...78 KX FP206CX KX FP218CX REFERENCE Test Mode P 57 ...
Page 79: ...79 KX FP206CX KX FP218CX REFERENCE Test Mode P 57 ...
Page 80: ...80 KX FP206CX KX FP218CX ...
Page 81: ...81 KX FP206CX KX FP218CX ...
Page 82: ...82 KX FP206CX KX FP218CX REFERENCE Test Mode P 57 ...
Page 86: ...86 KX FP206CX KX FP218CX ...
Page 111: ...111 KX FP206CX KX FP218CX ...
Page 118: ...118 KX FP206CX KX FP218CX I O and Pin No Diagram ...
Page 121: ...121 KX FP206CX KX FP218CX 12 5 5 2 NG Example ...
Page 123: ...123 KX FP206CX KX FP218CX ...
Page 128: ...128 KX FP206CX KX FP218CX 12 5 8 2 Troubleshooting Flow Chart ...
Page 134: ...134 KX FP206CX KX FP218CX 12 5 12 Thermal Head Section Note Refer to Thermal Head P 24 ...
Page 135: ...135 KX FP206CX KX FP218CX 13 Service Fixture Tools ...
Page 140: ...140 KX FP206CX KX FP218CX 14 3 2 How to Remove the Thermal Head ...
Page 141: ...141 KX FP206CX KX FP218CX ...
Page 142: ...142 KX FP206CX KX FP218CX 14 3 3 How to Remove the Bottom Frame ...
Page 143: ...143 KX FP206CX KX FP218CX 14 3 4 How to Remove the P C Boards and Speaker ...
Page 144: ...144 KX FP206CX KX FP218CX 14 3 5 How to Remove the Power Supply Board and AC cord ...
Page 145: ...145 KX FP206CX KX FP218CX 14 3 6 How to Remove the Gear Block and Separation Roller ...
Page 146: ...146 KX FP206CX KX FP218CX 14 3 7 How to Remove the Gears Motors and Arms of the Gear Block ...
Page 147: ...147 KX FP206CX KX FP218CX ...
Page 148: ...148 KX FP206CX KX FP218CX 14 3 8 How to Remove the Handset Cradle and Hook Switch Board ...
Page 149: ...149 KX FP206CX KX FP218CX 14 3 9 How to Remove the Back Cover ...
Page 150: ...150 KX FP206CX KX FP218CX 14 3 10 How to Remove the Platen Roller and Lock Lever ...
Page 151: ...151 KX FP206CX KX FP218CX ...
Page 152: ...152 KX FP206CX KX FP218CX 14 3 11 How to Remove the Pickup Roller ...
Page 153: ...153 KX FP206CX KX FP218CX 14 3 12 How to Remove the Operation Panel ...
Page 155: ...155 KX FP206CX KX FP218CX 14 3 13 2 KX FP218 ...
Page 156: ...156 KX FP206CX KX FP218CX 14 3 14 How to Remove the Separation Holder and Exit Roller ...
Page 158: ...158 KX FP206CX KX FP218CX ...
Page 159: ...159 KX FP206CX KX FP218CX ...
Page 160: ...160 KX FP206CX KX FP218CX 14 3 15 2 Operation Panel Section KX FP206 ...
Page 161: ...161 KX FP206CX KX FP218CX 14 3 15 3 Operation Panel and Mic Board Section KX FP218 ...
Page 176: ...176 KX FP206CX KX FP218CX 16 1 4 Power Supply Board 16 1 5 Interface Board ...
Page 179: ...179 KX FP206CX KX FP218CX 16 3 Test Chart 16 3 1 ITU T No 1 Test chart ...
Page 180: ...180 KX FP206CX KX FP218CX 16 3 2 ITU T No 2 Test Chart ...
Page 181: ...181 KX FP206CX KX FP218CX 16 3 3 Test Chart ...
Page 200: ...200 KX FP206CX KX FP218CX MEMO ...
Page 211: ...211 KX FP206CX KX FP218CX 20 1 2 Operation Panel Section ...
Page 212: ...212 KX FP206CX KX FP218CX 20 1 3 Upper Cabinet Section ...
Page 213: ...213 KX FP206CX KX FP218CX 20 1 4 Back Cover Section ...
Page 214: ...214 KX FP206CX KX FP218CX ...
Page 215: ...215 KX FP206CX KX FP218CX 20 1 5 Lower Cabinet Section ...
Page 216: ...216 KX FP206CX KX FP218CX 20 1 6 Gear Block Section ...
Page 217: ...217 KX FP206CX KX FP218CX ...
Page 218: ...218 KX FP206CX KX FP218CX 20 1 7 Screws ...
Page 219: ...219 KX FP206CX KX FP218CX 20 1 8 Accessories and Packing Materials ...