44
KX-FC265CX-S
The following is an overview of how the power supply unit is controlled.
The control method of this power supply unit is pulse width modulation.
When Q
1
is ON, the energy is charged in the transfer primary coil according to E
1
. When Q
1
is OFF, the energy is output from
the secondary transfer as follows.
L
→
D
1
→
Load
→
L
Then the power is supplied to the Load. When Q
1
is ON, power is not output from the secondary side. The output voltage is fed
back in the control IC according to the error amp rectifier. Then depending on how T
ON
is controlled, stabilization occurs. Also,
when the current load becomes too large, in order to decrease the voltage output, the increase in
is controlled and the output
voltage is stabilized.
Therefore, basically the timing: Ton/Toff of Q1 controls the output voltage.
Содержание KX-FC265CX-S
Страница 20: ...20 KX FC265CX S 6 4 2 Block Diagram ...
Страница 22: ...22 KX FC265CX S ...
Страница 35: ...35 KX FC265CX S b Redundancy Compression Process Coding Mode This unit uses one dimensional MH format ...
Страница 58: ...58 KX FC265CX S Note Refer to Program Mode Table P 99 ...
Страница 66: ...66 KX FC265CX S 11 2 Cordless Handset ...
Страница 69: ...69 KX FC265CX S 11 3 2 Service Mode Settings Note The above values are the default values ...
Страница 77: ...77 KX FC265CX S Countermeasure ...
Страница 78: ...78 KX FC265CX S REFERENCE Test Mode P 59 ...
Страница 79: ...79 KX FC265CX S REFERENCE Test Mode P 59 ...
Страница 80: ...80 KX FC265CX S REFERENCE Test Mode P 59 ...
Страница 81: ...81 KX FC265CX S REFERENCE Test Mode P 59 ...
Страница 82: ...82 KX FC265CX S ...
Страница 83: ...83 KX FC265CX S REFERENCE Test Mode P 59 ...
Страница 84: ...84 KX FC265CX S REFERENCE Test Mode P 59 ...
Страница 88: ...88 KX FC265CX S ...
Страница 113: ...113 KX FC265CX S ...
Страница 120: ...120 KX FC265CX S I O and Pin No Diagram ...
Страница 122: ...122 KX FC265CX S Other NG example while the power is ON and the LCD displays the following ...
Страница 123: ...123 KX FC265CX S 12 5 5 2 NG Example ...
Страница 127: ...127 KX FC265CX S 12 5 7 2 Troubleshooting Flow Chart ...
Страница 133: ...133 KX FC265CX S 12 5 11 Thermal Head Section Note Refer to Thermal Head P 21 ...
Страница 142: ...142 KX FC265CX S 13 Service Fixture Tools ...
Страница 146: ...146 KX FC265CX S 14 2 5 Cordless Handset Section REFERENCE E 1 How to Remove the Cordless Handset Board P 170 ...
Страница 147: ...147 KX FC265CX S 14 3 Disassembly Procedure 14 3 1 How to Remove the Image Sensor CIS ...
Страница 148: ...148 KX FC265CX S 14 3 2 How to Remove the Thermal Head ...
Страница 149: ...149 KX FC265CX S ...
Страница 150: ...150 KX FC265CX S 14 3 3 How to Remove the Bottom Frame ...
Страница 151: ...151 KX FC265CX S 14 3 4 How to Remove the P C Boards and Speaker ...
Страница 152: ...152 KX FC265CX S 14 3 5 How to Remove the Power Supply Board and AC Cord ...
Страница 153: ...153 KX FC265CX S 14 3 6 How to Remove the Gear Block and Separation Roller ...
Страница 154: ...154 KX FC265CX S 14 3 7 How to Remove the Gears Motors and Arms of the Gear Block ...
Страница 155: ...155 KX FC265CX S ...
Страница 156: ...156 KX FC265CX S 14 3 8 How to Remove the Charger Board A ...
Страница 157: ...157 KX FC265CX S 14 3 9 How to Remove the Back Cover ...
Страница 158: ...158 KX FC265CX S 14 3 10 How to Remove the Platen Roller and Lock Lever ...
Страница 159: ...159 KX FC265CX S ...
Страница 160: ...160 KX FC265CX S 14 3 11 How to Remove the Pickup Roller and Antenna ...
Страница 161: ...161 KX FC265CX S 14 3 12 How to Remove the Operation Panel ...
Страница 162: ...162 KX FC265CX S 14 3 13 How to Remove the Operation Board MIC Board and LCD ...
Страница 163: ...163 KX FC265CX S 14 3 14 How to Remove the Separation Holder and Exit Roller ...
Страница 164: ...164 KX FC265CX S 14 3 15 Installation Position of the Lead Wires 14 3 15 1 Lower Section ...
Страница 165: ...165 KX FC265CX S ...
Страница 166: ...166 KX FC265CX S ...
Страница 167: ...167 KX FC265CX S ...
Страница 168: ...168 KX FC265CX S 14 3 15 2 Operation Panel Section ...
Страница 169: ...169 KX FC265CX S 14 3 15 3 Back Cover Section ...
Страница 170: ...170 KX FC265CX S 14 3 16 How to Remove the Cordless Handset Board ...
Страница 171: ...171 KX FC265CX S 14 3 16 1 How to Replace the LCD ...
Страница 193: ...193 KX FC265CX S 16 2 3 4 Copying Note See Sensor Locations in Sensor and Switches P 26 REFERENCE Sensor Section P 130 ...
Страница 200: ...200 KX FC265CX S 17 1 7 Cordless Handset Board ...
Страница 205: ...205 KX FC265CX S 17 4 Test Chart 17 4 1 ITU T No 1 Test Chart ...
Страница 206: ...206 KX FC265CX S 17 4 2 ITU T No 2 Test Chart ...
Страница 207: ...207 KX FC265CX S 17 4 3 Test Chart ...
Страница 237: ...237 KX FC265CX S Memo ...
Страница 239: ...239 KX FC265CX S Memo ...
Страница 266: ...266 KX FC265CX S ...
Страница 267: ...267 KX FC265CX S YK KXFC265CXS ...