118
KX-FP207FX-S/FP218FX-S
Normal Wave Patterns
Remarks:
When you use an oscilloscope to judge whether a signal to be tested is normal or NG, perform the signal check in exactly the
same order as in [List 1]. (If the ASIC fails to access the FLASH ROM, the ASIC cannot access DRAM normally.)
The digital circuit actually operates according to the timing combinations of these signals. If the timing of these signals is even
slightly delayed, the circuit will not work. Nor will it if the IC is defective and the output voltage level is not normal although the
timing of these signals is accurate enough to meet the specifications. (Make sure that your oscilloscope is calibrated before
starting a test.)
Therefore, it is imperative to confirm whether each IC outputs the signal at the correct level. (See the
I/O Pin No. Diagram
.) The
signal level should be constantly output at between 3.3V (H) and 0V (L) as described earlier.
Note:
Simply check the output level and make sure if the IC repeatedly outputs the signal at between 3.3V (H) and 0V (L).
Summary of Contents for KX-FP207FX-S
Page 10: ...10 KX FP207FX S FP218FX S 6 Technical Descriptions 6 1 Connection Diagram ...
Page 12: ...12 KX FP207FX S FP218FX S 6 2 1 General Block Diagram ...
Page 14: ...14 KX FP207FX S FP218FX S 6 3 2 Memory Map ...
Page 23: ...23 KX FP207FX S FP218FX S 6 4 2 Block Diagram ...
Page 25: ...25 KX FP207FX S FP218FX S ...
Page 44: ...44 KX FP207FX S FP218FX S 2 Signal path Refer to Check Sheet for Signal Route P 123 ...
Page 68: ...68 KX FP207FX S FP218FX S 11 2 1 2 KX FP218FX S Note The above values are the default values ...
Page 76: ...76 KX FP207FX S FP218FX S Countermeasure ...
Page 77: ...77 KX FP207FX S FP218FX S REFERENCE Test Mode P 58 ...
Page 78: ...78 KX FP207FX S FP218FX S REFERENCE Test Mode P 58 ...
Page 79: ...79 KX FP207FX S FP218FX S REFERENCE Test Mode P 58 ...
Page 80: ...80 KX FP207FX S FP218FX S REFERENCE Test Mode P 58 ...
Page 81: ...81 KX FP207FX S FP218FX S ...
Page 82: ...82 KX FP207FX S FP218FX S ...
Page 83: ...83 KX FP207FX S FP218FX S REFERENCE Test Mode P 58 ...
Page 87: ...87 KX FP207FX S FP218FX S ...
Page 112: ...112 KX FP207FX S FP218FX S ...
Page 119: ...119 KX FP207FX S FP218FX S I O and Pin No Diagram ...
Page 122: ...122 KX FP207FX S FP218FX S 12 5 5 2 NG Example ...
Page 124: ...124 KX FP207FX S FP218FX S ...
Page 129: ...129 KX FP207FX S FP218FX S 12 5 8 2 Troubleshooting Flow Chart ...
Page 135: ...135 KX FP207FX S FP218FX S 12 5 12 Thermal Head Section Note Refer to Thermal Head P 24 ...
Page 136: ...136 KX FP207FX S FP218FX S 13 Service Fixture Tools ...
Page 141: ...141 KX FP207FX S FP218FX S 14 3 2 How to Remove the Thermal Head ...
Page 142: ...142 KX FP207FX S FP218FX S ...
Page 143: ...143 KX FP207FX S FP218FX S 14 3 3 How to Remove the Bottom Frame ...
Page 144: ...144 KX FP207FX S FP218FX S 14 3 4 How to Remove the P C Boards and Speaker ...
Page 145: ...145 KX FP207FX S FP218FX S 14 3 5 How to Remove the Power Supply Board and AC cord ...
Page 146: ...146 KX FP207FX S FP218FX S 14 3 6 How to Remove the Gear Block and Separation Roller ...
Page 147: ...147 KX FP207FX S FP218FX S 14 3 7 How to Remove the Gears Motors and Arms of the Gear Block ...
Page 148: ...148 KX FP207FX S FP218FX S ...
Page 149: ...149 KX FP207FX S FP218FX S 14 3 8 How to Remove the Handset Cradle and Hook Switch Board ...
Page 150: ...150 KX FP207FX S FP218FX S 14 3 9 How to Remove the Back Cover ...
Page 151: ...151 KX FP207FX S FP218FX S 14 3 10 How to Remove the Platen Roller and Lock Lever ...
Page 152: ...152 KX FP207FX S FP218FX S ...
Page 153: ...153 KX FP207FX S FP218FX S 14 3 11 How to Remove the Pickup Roller ...
Page 154: ...154 KX FP207FX S FP218FX S 14 3 12 How to Remove the Operation Panel ...
Page 156: ...156 KX FP207FX S FP218FX S 14 3 13 2 KX FP218FX ...
Page 157: ...157 KX FP207FX S FP218FX S 14 3 14 How to Remove the Separation Holder and Exit Roller ...
Page 159: ...159 KX FP207FX S FP218FX S ...
Page 160: ...160 KX FP207FX S FP218FX S ...
Page 161: ...161 KX FP207FX S FP218FX S 14 3 15 2 Operation Panel Section KX FP207 ...
Page 162: ...162 KX FP207FX S FP218FX S 14 3 15 3 Operation Panel and Mic Board Section KX FP218 ...
Page 177: ...177 KX FP207FX S FP218FX S 16 1 4 Power Supply Board 16 1 5 Interface Board ...
Page 180: ...180 KX FP207FX S FP218FX S 16 3 Test Chart 16 3 1 ITU T No 1 Test chart ...
Page 181: ...181 KX FP207FX S FP218FX S 16 3 2 ITU T No 2 Test Chart ...
Page 182: ...182 KX FP207FX S FP218FX S 16 3 3 Test Chart ...
Page 201: ...201 KX FP207FX S FP218FX S MEMO ...
Page 212: ...212 KX FP207FX S FP218FX S 20 1 2 Operation Panel Section ...
Page 213: ...213 KX FP207FX S FP218FX S 20 1 3 Upper Cabinet Section ...
Page 214: ...214 KX FP207FX S FP218FX S 20 1 4 Back Cover Section ...
Page 215: ...215 KX FP207FX S FP218FX S ...
Page 216: ...216 KX FP207FX S FP218FX S 20 1 5 Lower Cabinet Section ...
Page 217: ...217 KX FP207FX S FP218FX S 20 1 6 Gear Block Section ...
Page 218: ...218 KX FP207FX S FP218FX S ...
Page 219: ...219 KX FP207FX S FP218FX S 20 1 7 Screws ...
Page 220: ...220 KX FP207FX S FP218FX S 20 1 8 Accessories and Packing Materials ...
Page 232: ...232 KX FP207FX S FP218FX S Y F KXFP207FX S KXFP218FX S ...