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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.
157
KX-FP342BX
Содержание KX-FP342BX
Страница 21: ...4 1 2 COMPONENT LOCATIONS 21 KX FP342BX ...
Страница 32: ...5 2 DISASSEMBLY PROCEDURE 5 2 1 HOW TO REMOVE THE PAPER TRAY AND RECORDING PAPER SUPPORT 32 KX FP342BX ...
Страница 33: ...5 2 2 HOW TO REMOVE THE OPERATION PANEL BLOCK 33 KX FP342BX ...
Страница 34: ...5 2 3 HOW TO REMOVE THE OPERATION BOARD AND LCD 34 KX FP342BX ...
Страница 35: ...5 2 4 HOW TO REMOVE THE IMAGE SENSOR CIS 35 KX FP342BX ...
Страница 36: ...5 2 5 HOW TO REMOVE THE THERMAL HEAD 36 KX FP342BX ...
Страница 37: ...5 2 6 HOW TO REMOVE THE PLATEN ROLLER AND BACK COVER 37 KX FP342BX ...
Страница 38: ...5 2 7 HOW TO REMOVE THE PICKUP ROLLER 38 KX FP342BX ...
Страница 39: ...5 2 8 HOW TO REMOVE THE CASSETTE LEVER 39 KX FP342BX ...
Страница 40: ...5 2 9 HOW TO REMOVE THE BOTTOM FRAME 40 KX FP342BX ...
Страница 41: ...5 2 10 HOW TO REMOVE THE DIGITAL ANALOG POWER SUPPLY SENSOR BOARDS AND AC INLET 41 KX FP342BX ...
Страница 42: ...5 2 11 HOW TO REMOVE THE MOTOR BLOCK AND SEPARATION ROLLER 42 KX FP342BX ...
Страница 43: ...5 2 12 HOW TO REMOVE THE GEARS OF MOTOR BLOCK 43 KX FP342BX ...
Страница 44: ...5 3 INSTALLATION POSITION OF THE LEAD WIRES 44 KX FP342BX ...
Страница 56: ...6 5 THE EXAMPLE OF THE PRINTED LIST 6 5 1 USER MODE Note The above values are the default values 56 KX FP342BX ...
Страница 57: ...6 5 2 SREVICE MODE SETTINGS Note The above values are the default values 57 KX FP342BX ...
Страница 71: ...71 KX FP342BX ...
Страница 85: ...85 KX FP342BX ...
Страница 86: ...CROSS REFERENCE TEST FUNCTIONS P 50 86 KX FP342BX ...
Страница 87: ...CROSS REFERENCE TEST FUNCTIONS P 50 87 KX FP342BX ...
Страница 88: ...CROSS REFERENCE TEST FUNCTIONS P 50 88 KX FP342BX ...
Страница 89: ...CROSS REFERENCE TEST FUNCTIONS P 50 89 KX FP342BX ...
Страница 90: ...90 KX FP342BX ...
Страница 91: ...91 KX FP342BX ...
Страница 92: ...CROSS REFERENCE TEST FUNCTIONS P 50 92 KX FP342BX ...
Страница 96: ...96 KX FP342BX ...
Страница 100: ...I O and Pin No Diagram 100 KX FP342BX ...
Страница 101: ...6 6 7 1 CHECK THE STATUS OF THE DIGITAL BOARD CROSS REFERENCE NG Wave pattern Refer to NG EXAMPLE P 98 101 KX FP342BX ...
Страница 104: ...6 6 7 3 NG EXAMPLE 104 KX FP342BX ...
Страница 109: ...6 6 9 2 TROUBLESHOOTING FLOW CHART 109 KX FP342BX ...
Страница 115: ...6 6 13 THERMAL HEAD SECTION Refer to THERMAL HEAD P 129 115 KX FP342BX ...
Страница 116: ...7 CIRCUIT OPERATIONS 7 1 CONNECTION DIAGRAM 116 KX FP342BX ...
Страница 118: ...7 2 1 GENERAL BLOCK DIAGRAM 118 KX FP342BX ...
Страница 120: ...7 3 2 MEMORY MAP 120 KX FP342BX ...
Страница 128: ...7 4 2 BLOCK DIAGRAM 128 KX FP342BX ...
Страница 131: ...TIMING CHART i Print Duty 50 or less ii Print Duty more than 50 131 KX FP342BX ...
Страница 143: ...b Redundancy Compression Process Coding Mode This unit uses one dimensional MH format 143 KX FP342BX ...
Страница 150: ...150 KX FP342BX ...
Страница 159: ...8 REFERENCE MATERIAL DATA 8 1 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 159 KX FP342BX ...
Страница 162: ...8 3 TEST CHART 8 3 1 ITU T No 1 TEST CHART 162 KX FP342BX ...
Страница 163: ...8 3 2 ITU T No 2 TEST CHART 163 KX FP342BX ...
Страница 164: ...9 FIXTURES AND TOOLS 164 KX FP342BX ...
Страница 165: ...10 CABINET MECHANICAL AND ELECTRICAL PARTS LOCATION 10 1 GENERAL SECTION 165 KX FP342BX ...
Страница 166: ...10 2 OPERATION PANEL SECTION 166 KX FP342BX ...
Страница 167: ...10 3 BACK COVER SECTION 167 KX FP342BX ...
Страница 168: ...168 KX FP342BX ...
Страница 169: ...10 4 UPPER CABINET SECTION 169 KX FP342BX ...
Страница 170: ...10 5 LOWER CABINET P C BOARD SECTION CROSS REFERENCE MOTOR SECTION P 171 170 KX FP342BX ...
Страница 171: ...10 6 MOTOR SECTION 10 7 ACTUAL SIZE OF SCREWS 171 KX FP342BX ...
Страница 172: ...11 ACCESSORIES AND PACKING MATERIALS 172 KX FP342BX ...
Страница 180: ...8 REFERENCE MATERIAL DATA 8 1 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 159 KX FP342BX ...
Страница 183: ...8 3 TEST CHART 8 3 1 ITU T No 1 TEST CHART 162 KX FP342BX ...
Страница 184: ...8 3 2 ITU T No 2 TEST CHART 163 KX FP342BX ...
Страница 185: ...9 FIXTURES AND TOOLS 164 KX FP342BX ...
Страница 186: ...10 CABINET MECHANICAL AND ELECTRICAL PARTS LOCATION 10 1 GENERAL SECTION 165 KX FP342BX ...
Страница 187: ...10 2 OPERATION PANEL SECTION 166 KX FP342BX ...
Страница 188: ...10 3 BACK COVER SECTION 167 KX FP342BX ...
Страница 189: ...168 KX FP342BX ...
Страница 190: ...10 4 UPPER CABINET SECTION 169 KX FP342BX ...
Страница 191: ...10 5 LOWER CABINET P C BOARD SECTION CROSS REFERENCE MOTOR SECTION P 171 170 KX FP342BX ...
Страница 192: ...10 6 MOTOR SECTION 10 7 ACTUAL SIZE OF SCREWS 171 KX FP342BX ...
Страница 193: ...11 ACCESSORIES AND PACKING MATERIALS 172 KX FP342BX ...