Printer User Manual

Page 4-3
Section 4. Electric Checks and Adjustments
SATO CL408e/CL412e Service Manual
PN 9001078
Rev. B
4.3 DC Power Voltage Checks
To check voltage levels, first check the fuses (Section 6.3) and replace if necessary. Then
remove the LH cover, (Section 4.2) and perform the following steps.
Addtional equipment required: TP Test Module
Digital Multimeter
STEP PROCEDURE
Refer to illustrations on pages 4-3 through 4-5.
1. Attach the connector from the TP Test Module to the test port on
the main PCB. Note correct positioning of connector. Nibs on the
connector are placed down in the receptacle on the PCB in the
forward position.
2. Attach the ground probe of the multimeter to the TP Test Module
Gnd pin.
3. Attach the positive probe of the multimeter to the +SIG pin on
the TP Test Module terminal.
4. Turn printer on and rotate the dial to a dial POS on the TP Test
Module.  Record the values from the Multimeter LCD.
5. Confirm voltages are correct. If not, then replace power supply.
Refer to Section 6.4.
6. After performing tests, replace the LH cover to the printer.
MAIN PCB
VR1 OFS
INTERFACE
BOARD
POWER SUPPLY
VR4 GAP
VR5 IM
CN13
TEST POINT
CONNECTOR
VR2 DEM
VR3 CE