46
KX-FC265GR-T
6.12. Power Supply Board Section
This power supply board uses the switching regulator method.
[Input Circuit]
The input current goes into the input rectifier circuit through the filter circuit. The filter circuit decreases the noise voltage and the
noise electric field strength.
[Rectifier Circuit]
The input current is rectified by D101, D102, D103 and D104 and charges C106 to make DC voltage. Then it supplies power to
the converter circuit.
[Kick-on voltage circuit]
Bias is applied to the Q101 gate via this circuit when the AC power is turned on and Q101 begins operating.
A-B Voltage Wave Form
C-D Voltage Wave Form
E-F
G-H Voltage Wave Form
0
0
0
Input
Circuit
AC
Input
Surge
Absorber
Circuit
G
H
4V
24V
E
IC101
D110
R104
F
9~6V
GND
Control
Circuit
Kick-on
Voltage
Circuit
Converter
Circuit
C
D
4V
Output
Circuit
24V
Output
Circuit
+
-
Rectifier
Circuit
A
B
C106
Error Detecting
Circuit
Block Diagram
Surge
Absorber
Circuit
Q101
Summary of Contents for KX-FC265GR-T
Page 13: ...13 KX FC265GR T 4 2 1 2 Error Messages Report 4 2 2 Cordless Handset ...
Page 22: ...22 KX FC265GR T 6 4 2 Block Diagram ...
Page 24: ...24 KX FC265GR T ...
Page 61: ...61 KX FC265GR T Note Refer to Program Mode Table P 102 ...
Page 69: ...69 KX FC265GR T 11 2 Cordless Handset ...
Page 72: ...72 KX FC265GR T 11 3 2 Service Mode Settings Note The above values are the default values ...
Page 80: ...80 KX FC265GR T Countermeasure ...
Page 81: ...81 KX FC265GR T REFERENCE Test Mode P 62 ...
Page 82: ...82 KX FC265GR T REFERENCE Test Mode P 62 ...
Page 83: ...83 KX FC265GR T REFERENCE Test Mode P 62 ...
Page 84: ...84 KX FC265GR T REFERENCE Test Mode P 62 ...
Page 85: ...85 KX FC265GR T ...
Page 86: ...86 KX FC265GR T REFERENCE Test Mode P 62 ...
Page 87: ...87 KX FC265GR T REFERENCE Test Mode P 62 ...
Page 91: ...91 KX FC265GR T ...
Page 116: ...116 KX FC265GR T ...
Page 123: ...123 KX FC265GR T I O and Pin No Diagram ...
Page 126: ...126 KX FC265GR T 12 5 5 2 NG Example ...
Page 130: ...130 KX FC265GR T 12 5 7 2 Troubleshooting Flow Chart ...
Page 136: ...136 KX FC265GR T 12 5 11 Thermal Head Section Note Refer to Thermal Head P 23 ...
Page 145: ...145 KX FC265GR T 13 Service Fixture Tools ...
Page 150: ...150 KX FC265GR T 14 3 Disassembly Procedure 14 3 1 How to Remove the Image Sensor CIS ...
Page 151: ...151 KX FC265GR T 14 3 2 How to Remove the Thermal Head ...
Page 152: ...152 KX FC265GR T ...
Page 153: ...153 KX FC265GR T 14 3 3 How to Remove the Bottom Frame ...
Page 154: ...154 KX FC265GR T 14 3 4 How to Remove the P C Boards and Speaker ...
Page 155: ...155 KX FC265GR T 14 3 5 How to Remove the Power Supply Board and AC Cord ...
Page 156: ...156 KX FC265GR T 14 3 6 How to Remove the Gear Block and Separation Roller ...
Page 157: ...157 KX FC265GR T 14 3 7 How to Remove the Gears Motors and Arms of the Gear Block ...
Page 158: ...158 KX FC265GR T ...
Page 159: ...159 KX FC265GR T 14 3 8 How to Remove the Charger Board A ...
Page 160: ...160 KX FC265GR T 14 3 9 How to Remove the Back Cover ...
Page 161: ...161 KX FC265GR T 14 3 10 How to Remove the Platen Roller and Lock Lever ...
Page 162: ...162 KX FC265GR T ...
Page 163: ...163 KX FC265GR T 14 3 11 How to Remove the Pickup Roller and Antenna ...
Page 164: ...164 KX FC265GR T 14 3 12 How to Remove the Operation Panel ...
Page 165: ...165 KX FC265GR T 14 3 13 How to Remove the Operation Board MIC Board and LCD ...
Page 166: ...166 KX FC265GR T 14 3 14 How to Remove the Separation Holder and Exit Roller ...
Page 167: ...167 KX FC265GR T 14 3 15 Installation Position of the Lead Wires 14 3 15 1 Lower Section ...
Page 168: ...168 KX FC265GR T ...
Page 169: ...169 KX FC265GR T ...
Page 170: ...170 KX FC265GR T ...
Page 171: ...171 KX FC265GR T 14 3 15 2 Operation Panel Section ...
Page 172: ...172 KX FC265GR T 14 3 15 3 Back Cover Section ...
Page 173: ...173 KX FC265GR T 14 3 16 How to Remove the Cordless Handset Board ...
Page 174: ...174 KX FC265GR T 14 3 16 1 How to Replace the LCD ...
Page 203: ...203 KX FC265GR T 17 1 7 Cordless Handset Board ...
Page 208: ...208 KX FC265GR T 17 4 Test Chart 17 4 1 ITU T No 1 Test Chart ...
Page 209: ...209 KX FC265GR T 17 4 2 ITU T No 2 Test Chart ...
Page 210: ...210 KX FC265GR T 17 4 3 Test Chart ...
Page 211: ...211 KX FC265GR T Memo ...
Page 224: ...224 KX FC265GR T Memo ...
Page 243: ...243 KX FC265GR T Memo ...
Page 261: ...261 KX FC265GR T Memo ...
Page 271: ...271 KX FC265GR T ...
Page 272: ...272 KX FC265GR T K T KXFC265GRT ...