Nov. 1997 © TOSHIBA
14 - 1
3560/70 POWER
14. POWER STABILIZING CIRCUIT
14.1 Power Circuit
This power circuit has the following 3 DC outputs.
DC output
Rating
Main load
5V
5.1V
±
5%
LED eraser array, LCD, LED, logic IC power supplies
24VA – E, I, J
24V
±
10%
Motors, clutches, high-voltage transformer, scanning motor
24VF – H
24V
±
10%
RADF, optional sorter, main switch
14.2 Description of Operation
When the main switch on the copier is turned ON, AC power is supplied to the switching power supply,
and then the 5V power supply for the logic ICs, and the 24VF – H DC power supply for the RADF and
sorter are turned ON. At this time, if the door switch is ON (closed), the 24VA – E, I, J DC voltages are
turned ON.
Each of these power circuit is provided with overcurrent protection fuses (excluding 5V) and an overcurrent
protection unit is provided in the circuit to protect the copier’s power circuit in case of an overload or a
power output short.
When these functions are in operation, remove the cause of the overload or short. When a fuse has
blown, replace the fuse. Or, when overcurrent protection in the circuit is in operation, turn the main switch
OFF then ON again to enable circuit operation.
The power circuit is also provided with an overvoltage protection function. This function prevents the
power supply from turning ON to protect electrical components if two different voltages short. If this
happens, remove the cause of the short, and turn the main switch OFF then ON again to enable circuit
operation.
Summary of Contents for 3560
Page 21: ...3560 70 GENERAL 2 14 Nov 1997 TOSHIBA B Location diagram for lower unit ...
Page 72: ...Nov 1997 TOSHIBA 13 25 3560 70 CIRCUIT DIAGRAMS 13 3 Power Supply Circuit PS ACC A 115 V ...
Page 73: ...3560 70 CIRCUIT DIAGRAMS 13 26 Nov 1997 TOSHIBA B 230 V ...
Page 77: ...Nov 1997 TOSHIBA 15 1 3560 70 PC BOARD 15 PC BOARD ASSEMBLY 15 1 PWA LGC ...
Page 78: ...3560 70 PC BOARD 15 2 Nov 1997 TOSHIBA 15 2 PWA PNL ...
Page 79: ...Nov 1997 TOSHIBA 15 3 3560 70 PC BOARD 15 3 PWA KEY KEY1 KEY2 ...
Page 80: ...3560 70 PC BOARD 15 4 Nov 1997 TOSHIBA 15 4 PWA ERS ...
Page 81: ...Nov 1997 TOSHIBA 15 5 3560 70 PC BOARD 15 5 PS ACC A 1 115V ...
Page 82: ...3560 70 PC BOARD 15 6 Nov 1997 TOSHIBA A 2 230V ...