47
KX-FC265GR-T
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-FC265GR-T
Страница 13: ...13 KX FC265GR T 4 2 1 2 Error Messages Report 4 2 2 Cordless Handset ...
Страница 22: ...22 KX FC265GR T 6 4 2 Block Diagram ...
Страница 24: ...24 KX FC265GR T ...
Страница 37: ...37 KX FC265GR T b Redundancy Compression Process Coding Mode This unit uses one dimensional MH format ...
Страница 61: ...61 KX FC265GR T Note Refer to Program Mode Table P 102 ...
Страница 69: ...69 KX FC265GR T 11 2 Cordless Handset ...
Страница 72: ...72 KX FC265GR T 11 3 2 Service Mode Settings Note The above values are the default values ...
Страница 80: ...80 KX FC265GR T Countermeasure ...
Страница 81: ...81 KX FC265GR T REFERENCE Test Mode P 62 ...
Страница 82: ...82 KX FC265GR T REFERENCE Test Mode P 62 ...
Страница 83: ...83 KX FC265GR T REFERENCE Test Mode P 62 ...
Страница 84: ...84 KX FC265GR T REFERENCE Test Mode P 62 ...
Страница 85: ...85 KX FC265GR T ...
Страница 86: ...86 KX FC265GR T REFERENCE Test Mode P 62 ...
Страница 87: ...87 KX FC265GR T REFERENCE Test Mode P 62 ...
Страница 91: ...91 KX FC265GR T ...
Страница 116: ...116 KX FC265GR T ...
Страница 123: ...123 KX FC265GR T I O and Pin No Diagram ...
Страница 126: ...126 KX FC265GR T 12 5 5 2 NG Example ...
Страница 130: ...130 KX FC265GR T 12 5 7 2 Troubleshooting Flow Chart ...
Страница 136: ...136 KX FC265GR T 12 5 11 Thermal Head Section Note Refer to Thermal Head P 23 ...
Страница 145: ...145 KX FC265GR T 13 Service Fixture Tools ...
Страница 149: ...149 KX FC265GR T 14 2 5 Cordless Handset Section REFERENCE E 1 How to Remove the Cordless Handset Board P 173 ...
Страница 150: ...150 KX FC265GR T 14 3 Disassembly Procedure 14 3 1 How to Remove the Image Sensor CIS ...
Страница 151: ...151 KX FC265GR T 14 3 2 How to Remove the Thermal Head ...
Страница 152: ...152 KX FC265GR T ...
Страница 153: ...153 KX FC265GR T 14 3 3 How to Remove the Bottom Frame ...
Страница 154: ...154 KX FC265GR T 14 3 4 How to Remove the P C Boards and Speaker ...
Страница 155: ...155 KX FC265GR T 14 3 5 How to Remove the Power Supply Board and AC Cord ...
Страница 156: ...156 KX FC265GR T 14 3 6 How to Remove the Gear Block and Separation Roller ...
Страница 157: ...157 KX FC265GR T 14 3 7 How to Remove the Gears Motors and Arms of the Gear Block ...
Страница 158: ...158 KX FC265GR T ...
Страница 159: ...159 KX FC265GR T 14 3 8 How to Remove the Charger Board A ...
Страница 160: ...160 KX FC265GR T 14 3 9 How to Remove the Back Cover ...
Страница 161: ...161 KX FC265GR T 14 3 10 How to Remove the Platen Roller and Lock Lever ...
Страница 162: ...162 KX FC265GR T ...
Страница 163: ...163 KX FC265GR T 14 3 11 How to Remove the Pickup Roller and Antenna ...
Страница 164: ...164 KX FC265GR T 14 3 12 How to Remove the Operation Panel ...
Страница 165: ...165 KX FC265GR T 14 3 13 How to Remove the Operation Board MIC Board and LCD ...
Страница 166: ...166 KX FC265GR T 14 3 14 How to Remove the Separation Holder and Exit Roller ...
Страница 167: ...167 KX FC265GR T 14 3 15 Installation Position of the Lead Wires 14 3 15 1 Lower Section ...
Страница 168: ...168 KX FC265GR T ...
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Страница 170: ...170 KX FC265GR T ...
Страница 171: ...171 KX FC265GR T 14 3 15 2 Operation Panel Section ...
Страница 172: ...172 KX FC265GR T 14 3 15 3 Back Cover Section ...
Страница 173: ...173 KX FC265GR T 14 3 16 How to Remove the Cordless Handset Board ...
Страница 174: ...174 KX FC265GR T 14 3 16 1 How to Replace the LCD ...
Страница 196: ...196 KX FC265GR T 16 2 3 4 Copying Note See Sensor Locations in Sensor and Switches P 28 REFERENCE Sensor Section P 133 ...
Страница 203: ...203 KX FC265GR T 17 1 7 Cordless Handset Board ...
Страница 208: ...208 KX FC265GR T 17 4 Test Chart 17 4 1 ITU T No 1 Test Chart ...
Страница 209: ...209 KX FC265GR T 17 4 2 ITU T No 2 Test Chart ...
Страница 210: ...210 KX FC265GR T 17 4 3 Test Chart ...
Страница 211: ...211 KX FC265GR T Memo ...
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Страница 261: ...261 KX FC265GR T Memo ...
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Страница 272: ...272 KX FC265GR T K T KXFC265GRT ...