92
KX-MB2230JT/ KX-MB2270JT/ KX-MB2515JT/ KX-MB2545JT/ KX-MB2575JT/ DP-MB310JT
6.18. Main Board Power Supply Section
6.18.1. 3.3V and 1.2V Power Supply Descriptions
1. IC800, IC801 is Synchronous Step-Down DC/DC Converter with Auto-Skip Eco-mode to increase light load efficiency.
2. Oscillation frequency is set at approximately 700kHz (Frequency is changed at Light Load.).
3. Q803,Q804,Q805,R809,R815,C812,R816,R818,C831,R814 are Sequence circuit. (After 1.2V DC-DC converter is turned on,
3.3V(IC801)'s operation is turned on.)
4. D803, D801 are the Zener Diode for Over voltage protection.
5. Q800, R839, C800, R820 are the switch circuit which turns off a S3.3V power supply at the time of Sleep mode.
6.18.2. 5V Power Supply Descriptions
1. IC801 is PWM type DC-DC converter with an internal power MOSFET , which make up step down type DC-DC converter cir-
cuit with coil of L802, schottky diode of D804, Capacitor of C819,C820 and C829.
2. D805 is the Zener Diode for Over voltage protection.
3. Q801,R823,C821,R824,Q802 are the switch circuit which turns off a S5V power supply at the time of Sleep mode.
R812
R815
R803
F22.1k
R804
C804 K1u
R820
C812 NC
( )
R800
R816
C813 K1u
R806
R805
C814 K4700p
C809
C805 K4700p
+3.3V
Q803
+2.5VT
PWRDWN2
LVIN
C810
R809
R813
0(1608)
LVIN
C802
C803
R811
S3.3V
R801
+5VD
+1.2V
C806
D10p
R839
Q804
Q805
R818
R814
IC801
1
EN
2
VFB
3
VREG5
4
SS
5
GND1
6
SW
7
VBST
8
VIN
9
GND2
IC800
1
EN
2
VFB
3
VREG5
4
SS
5
GND1
6
SW
7
VBST
8
VIN
9
GND2
C824
R841
C825 NC
()
R842
NC
()
C800
C807
C816
Q800
C831
C801
C808 10u/35V
L800
L801 2.2u
D803
D801
+1.2V
+3.3V
S5V
R840
LVIN
R810
C819
R802
C837
R808
R807
5.1k
Q801
1k
IC802
1
CE
2
VIN
4
BST
5
GND
3
LX
6
VFB
R817 10k
R845
C863
+5VD
C820
D804
S3.3V
Q802
D805
C830
C829
L802
+5V
Содержание KX-MB2230JT
Страница 15: ...15 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 4 2 2 General messages ...
Страница 16: ...16 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 4 2 3 Interface messages ...
Страница 46: ...46 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 3 W1 2 Phase excitation ...
Страница 65: ...65 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 135: ...135 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 136: ...136 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT KX MB2270 ...
Страница 137: ...137 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 138: ...138 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT KX MB2575 ...
Страница 139: ...139 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 140: ...140 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 141: ...141 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT DP MB310JT ...
Страница 142: ...142 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 143: ...143 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 144: ...144 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT KX MB2515 ...
Страница 145: ...145 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 146: ...146 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT KX MB2545 ...
Страница 147: ...147 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 148: ...148 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT Note The above values are the default values ...
Страница 150: ...150 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT KX MB2575 DP MB310JT ...
Страница 153: ...153 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT KX MB2270 ...
Страница 154: ...154 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT KX MB2575 ...
Страница 155: ...155 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT DP MB310JT ...
Страница 156: ...156 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT KX MB2515 ...
Страница 194: ...194 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 12 3 7 3 Skew ...
Страница 196: ...196 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 12 3 7 5 The Recording Paper Jam ...
Страница 200: ...200 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 12 3 8 2 Skew ADF ...
Страница 212: ...212 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 214: ...214 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 215: ...215 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT CROSS REFERENCE Test Functions P 124 ...
Страница 216: ...216 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT CROSS REFERENCE Test Functions P 124 ...
Страница 217: ...217 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT CROSS REFERENCE Test Functions P 124 ...
Страница 218: ...218 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT CROSS REFERENCE Test Functions P 124 ...
Страница 219: ...219 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 220: ...220 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 221: ...221 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT CROSS REFERENCE Test Functions P 124 ...
Страница 230: ...230 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 15 Toner Detection Flow ...
Страница 233: ...233 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 12 3 15 Motor Section 12 3 15 1 Main Motor ...
Страница 234: ...234 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 12 3 15 2 FB Motor ...
Страница 235: ...235 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 12 3 15 3 ADF MOTOR ...
Страница 237: ...237 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 12 3 17 CIS Control Section ...
Страница 240: ...240 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 12 3 19 High Voltage Section 1 Main ...
Страница 241: ...241 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 2 CHG GRID ...
Страница 242: ...242 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 3 TRA ...
Страница 243: ...243 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 3 DEV DC ...
Страница 244: ...244 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT TRA ...
Страница 246: ...246 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 2 Confirmation of the main unit ...
Страница 247: ...247 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 249: ...249 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT Waveform of normal operation ...
Страница 250: ...250 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 12 3 21 LAN Section LAN Block Diagram ...
Страница 256: ...256 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 12 3 23 2 Troubleshooting Flow Chart ...
Страница 262: ...262 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 3 Remove the drum cartridge 1 ...
Страница 271: ...271 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 14 2 Flow Chart for Disassembly ...
Страница 274: ...274 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 277: ...277 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 14 3 7 Remove the Speaker ...
Страница 279: ...279 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 14 3 9 Remove the Right Cover ...
Страница 280: ...280 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 14 3 10 Remove the Drive Unit ...
Страница 283: ...283 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 14 3 15 Remove the FAN ...
Страница 284: ...284 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 14 3 16 Remove the FB Unit ...
Страница 287: ...287 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 289: ...289 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 14 3 20 Disassemble the FB Unit FB Motor ...
Страница 291: ...291 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 14 3 23 Remove the Top Cover ...
Страница 292: ...292 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 14 3 24 Remove the Main Chassis ...
Страница 293: ...293 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 294: ...294 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 295: ...295 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 296: ...296 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT ...
Страница 310: ...310 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 3 Close the document cover 1 ...
Страница 325: ...325 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 15 6 1 NG Example ...
Страница 326: ...326 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 15 7 Test Chart 15 7 1 ITU T No 1 Test Chart ...
Страница 327: ...327 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT 15 7 2 ITU T No 2 Test Chart ...
Страница 342: ...342 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT Memo ...
Страница 356: ...356 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT Memo ...
Страница 370: ...370 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT Memo ...
Страница 384: ...384 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT Memo ...
Страница 398: ...398 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT Memo ...
Страница 437: ...437 KX MB2230JT KX MB2270JT KX MB2515JT KX MB2545JT KX MB2575JT DP MB310JT Memo ...