23
KX-FLC418RU
6.3.2.
RTC Backup Circuit
1.
Function
This unit has a lithium battery (BAT101) which works for the Real Time Clock IC (RTC: inside IC106).
The RTC continues to work, backed up by a lithium battery even when the power switch is OFF.
2.
RTC Inside (IC106) Backup Circuit Operation
When the power switch is turned ON, power is supplied to the RTC (inside IC106). At this time, the voltage at pin 10 of the
IC106 is +3.3V. When the power switch is turned OFF, the BAT101 supplies power to RTC through D108. The voltage at pin
10 of IC106 is about +2.5V. When the power switch is OFF and the voltage of +3.3V decreases, pin 10 of RTC (IC106)
becomes roughly the same voltage as the battery voltage. RTC goes into the backup mode, in which the power consumption
is lower.
76
VSS
0V
GND
GND
77
VIN0/IP20(APC)
I
3.3V
INPUT TO INVERTER
78
VIN1/IP21
I
3.3V
INPUT TO INVERTER
79
VIN2/IP22
I
3.3V
INPUT TO INVERTER
80
VOUT0/OP25
O
5V
OUTPUT FROM INVERTER
81
VOUT1/OP26
O
5V
OUTPUT FROM INVERTER
82
VOUT2/OP27
O
5V
OUTPUT FROM INVERTER
83
RM0
O
5V
RX MOTOR CONTROL
84
RM1
O
5V
RX MOTOR CONTROL
85
RM2
O
5V
RX MOTOR CONTROL
86
RM3
O
5V
RX MOTOR CONTROL
87
RXE
O
5V
NOT USED
88
5V
5V
5V
POWER SOURCE
89
VSS
0V
GND
GND
90
IOP57
O
5V
NOT USED
91
FANDET1/IOP14
I
5V
DETECT FAN ROTATION
92
FANON1/IOP15
O
5V
FAN CONTROL
93
FANDET2/IOP16
O
5V
NOT USED
94
FANON2/IOP17
O
5V
FAN CONTROL
95
IOP60/CSI
O
5V
BBIC CONTROL (T-PAT0)
96
IOP61/CCLK
O
5V
BBIC CONTROL (T-PAT1)
97
IOP62/CSO
O
5V
NOT USED (CDL_RESRV1)
98
SENCTL0/IOP04
O
5V
LED CONTROL FOR EXIT SENSOR
99
SENCTL1/IOP05
O
5V
LED CONTROL FOR REGIST SENSOR
100
5V
5V
5V
POWER SOURCE
PIN
No.
SIGNAL
I/O
POWER SUPPLY
VOLTAGE
EXPLANATION
Summary of Contents for KX-FLC418RU
Page 13: ...13 KX FLC418RU 4 2 2 Error Message Reports 4 2 3 Help Function 4 2 4 Cordless Handset ...
Page 15: ...15 KX FLC418RU 6 Technical Descriptions 6 1 Connection Diagram ...
Page 36: ...36 KX FLC418RU 6 8 1 2 Engine Motor Drive Circuit ...
Page 41: ...41 KX FLC418RU 6 11 LSU Laser Scanning Unit Section ...
Page 42: ...42 KX FLC418RU ...
Page 47: ...47 KX FLC418RU 6 12 9 Drum Detection ...
Page 59: ...59 KX FLC418RU Refer to Call Service Troubleshooting Guide P 153 ...
Page 84: ...84 KX FLC418RU 9 Operation Instructions 9 1 Characters available in each character entry mode ...
Page 85: ...85 KX FLC418RU 9 2 Setting Your Logo The logo can be your name or the name of your company ...
Page 87: ...87 KX FLC418RU Note Refer to Program Mode Table P 144 Refer to For Service Hint P 88 ...
Page 91: ...91 KX FLC418RU 10 1 1 Button Code Table ...
Page 97: ...97 KX FLC418RU 11 2 Cordless Handset ...
Page 106: ...106 KX FLC418RU ...
Page 107: ...107 KX FLC418RU CROSS REFERENCE Test Functions P 89 ...
Page 108: ...108 KX FLC418RU CROSS REFERENCE Test Functions P 89 ...
Page 109: ...109 KX FLC418RU CROSS REFERENCE Test Functions P 89 ...
Page 110: ...110 KX FLC418RU CROSS REFERENCE Test Functions P 89 ...
Page 111: ...111 KX FLC418RU ...
Page 112: ...112 KX FLC418RU ...
Page 113: ...113 KX FLC418RU CROSS REFERENCE Test Functions P 89 ...
Page 128: ...128 KX FLC418RU 12 2 5 5 Motor Section 12 2 5 5 1 Engine Motor ...
Page 129: ...129 KX FLC418RU 12 2 5 5 2 Scan ADF Motor ...
Page 130: ...130 KX FLC418RU 12 2 5 6 LSU Section CROSS REFERENCE LSU Laser Scanning Unit Section P 41 ...
Page 131: ...131 KX FLC418RU 12 2 6 CIS Contact Image Sensor Section CROSS REFERENCE Test Functions P 89 ...
Page 133: ...133 KX FLC418RU ...
Page 134: ...134 KX FLC418RU 12 2 8 High Voltage Section 1 Main ...
Page 135: ...135 KX FLC418RU 2 CHG GRID ...
Page 136: ...136 KX FLC418RU 3 TRA ...
Page 137: ...137 KX FLC418RU 4 DEV ...
Page 138: ...138 KX FLC418RU ...
Page 140: ...140 KX FLC418RU 12 2 9 2 Troubleshooting Flow Chart ...
Page 141: ...141 KX FLC418RU ...
Page 164: ...164 KX FLC418RU 12 4 7 6 Light Print CROSS REFERENCE High Voltage Section P 134 ...
Page 166: ...166 KX FLC418RU 12 4 7 8 Blank Print 12 4 7 9 Black or White Point ...
Page 168: ...168 KX FLC418RU 12 4 8 3 Skew ...
Page 170: ...170 KX FLC418RU 12 4 8 5 The Recording Paper Jam ...
Page 173: ...173 KX FLC418RU CROSS REFERENCE Motor Section P 128 ...
Page 174: ...174 KX FLC418RU 12 4 9 2 Skew ADF ...
Page 176: ...176 KX FLC418RU 12 4 9 5 The Received or Copied Data is Expanded ...
Page 177: ...177 KX FLC418RU 12 4 9 6 Black or White Vertical Line is Copied ...
Page 181: ...181 KX FLC418RU 12 4 10 4 Check Link Cordless Base Unit ...
Page 182: ...182 KX FLC418RU ...
Page 193: ...193 KX FLC418RU 13 Service Fixture Tools ...
Page 194: ...194 KX FLC418RU 14 Disassembly and Assembly Instructions ...
Page 197: ...197 KX FLC418RU 14 3 Cordless Handset Section CROSS REFERENCE E1 How to Replace the LCD P 219 ...
Page 198: ...198 KX FLC418RU 14 4 How to Remove the Front Cover ...
Page 199: ...199 KX FLC418RU 14 5 How to Remove the Pick Up Unit ...
Page 200: ...200 KX FLC418RU 14 6 How to Remove the Pick Up Roller ...
Page 201: ...201 KX FLC418RU 14 7 How to Remove the Antenna Board ...
Page 202: ...202 KX FLC418RU 14 8 How to Remove the Operation Board ...
Page 203: ...203 KX FLC418RU 14 9 How to Remove the Lower Flame 14 10 How to Remove the Separation Rubber ...
Page 204: ...204 KX FLC418RU 14 11 How to Remove the Transfer Roller ...
Page 205: ...205 KX FLC418RU 14 12 How to Remove the Separation Roller ...
Page 206: ...206 KX FLC418RU 14 13 How to Remove the Bottom Plate 14 14 How to Remove the Analog Board ...
Page 208: ...208 KX FLC418RU 14 17 How to Remove the Laser Unit 14 18 How to Remove the Fan Unit ...
Page 210: ...210 KX FLC418RU 14 21 How to Remove the Main Motor ...
Page 211: ...211 KX FLC418RU 14 22 How to Remove the Fuser Unit ...
Page 212: ...212 KX FLC418RU 14 23 How to Remove the CIS ...
Page 213: ...213 KX FLC418RU 14 24 Installation Position of the Lead ...
Page 214: ...214 KX FLC418RU ...
Page 215: ...215 KX FLC418RU ...
Page 216: ...216 KX FLC418RU ...
Page 217: ...217 KX FLC418RU ...
Page 218: ...218 KX FLC418RU 14 25 How to Remove the Cordless Handset Board ...
Page 219: ...219 KX FLC418RU 14 25 1 How to Replace the LCD ...
Page 220: ...220 KX FLC418RU 14 26 How to Remove the Charger Board ...
Page 252: ...252 KX FLC418RU 16 8 8 Timing Chart When Printing Two Sheets of Paper BASIC ...
Page 253: ...253 KX FLC418RU 16 8 9 Timing Chart Initializing Long ...
Page 257: ...257 KX FLC418RU 16 9 7 Cordless Handset Board ...
Page 261: ...261 KX FLC418RU 16 11 1 NG Example ...
Page 262: ...262 KX FLC418RU 16 12 Test Chart 16 12 1 ITU T No 1 Test Chart ...
Page 263: ...263 KX FLC418RU 16 12 2 ITU T No 2 Test Chart ...
Page 264: ...264 KX FLC418RU Memo ...
Page 273: ...273 KX FLC418RU Memo ...
Page 286: ...286 KX FLC418RU Memo ...
Page 298: ...298 KX FLC418RU Memo ...
Page 340: ...340 KX FLC418RU K T KXFLC418RU ...