SPS5000X series service manual
If the measured voltage value does not match the corresponding parameter in
the table, proceed to the next step. Besides, if the power supply voltages are
all 0V, the fuse on the bottom board also should be checked (need
disassembling).
4. Turn off the SPS5000X and wait for several minutes, then measure the
resistance between the capacitors mentioned above, to exclude circuit-short on
main board. If there is no circuit-short, you need to replace a new AUX board.
To ensure safety, do not disassemble the main board and the isolation slice
on the side unauthorizedly.
