Power Issues; Power Supply Unit (Psu) - MES SQA-Vision Service Manual

SQA-Vision
Power Power issues - fuses, PSU, power inlet.
issues: fuses,
ISSUE: The main switch is ON, but the power indicator
PSU, power
does not light up and the fan is not working
inlet

Notes:

1. Turn off the
power supply

and disconnect
the power

supply cable
from the back of
the SQA-Vision
before opening.
How to check the input voltage of PSU:
2. Refer to the
Appendix section

for instructions
on how to
address power
supply problems.

Note:
Before checking
the input\ output

connectors of the
main PSU, turn on
the SQA-Vision.
How to check the output voltage of PSU:




Power Supply
Replacing the Power Supply Unit –
part #Fpe-E-00146-00
Unit (PSU)
ISSUE: The power supply and/or cables are not working







Edition rev.: Jan 2020
Service Manual Version 109.13.4
Check the fuses in the fuses box located on the rear
panel of the SQA-Vision.
Replace the fuse if it is burned out.
Reconnect the power cord and turn the unit back on.
If the unit still does not work, check the input/output
voltage of PSU as instructed below.
Check the voltage on the input connector of the main
PSU using a multimeter
 The voltage should be ≈220V AC between the
black and the red wires
If no voltage is evident, replace the power inlet (see
the relevant section below)
If voltage is being supplied to the input connector,
check the output connector.
Disconnect the output cable from the motherboard.
Check the voltage on the output connector of the main
PSU using a multimeter:
 0V: black wire
 +5V: red wire
 +12V: purple wire
 -12V: white wire
If there is no voltage on the output connector or the
voltage is not correct, please replace the main PSU as
instructed below
If the problem persists, please contact Customers
Support.
Open the SQA-Vision.
Disconnect the input connector of the power supply
unit- location CN1.
Disconnect the output connector of the power supply
unit- location CN2.
Using a #2 Philips screwdriver, unscrew the four
screws that connect the PSU to the rear panel.
Remove the old PSU.
Secure a new PSU to the rear panel using the same
four screws.
Re-connect the input and output cable connectors to
the PSU.
13
Fuses box
PSU Input connector
Power Supply Output Cable
Unscrew 4 screws of PSU
Power Supply Unit