Service; Cleaning; General; Basic Operation - California Instruments MX30-1 User Manual

User Manual - Rev AJ

7. Service

7.1 Cleaning

The exterior of the power source may be cleaned with a cloth dampened with a mild detergent
and wrung out. Disconnect mains power to the source before cleaning. Do not spray water
other cleaning agents directly on the power source.
7.2 G eneral
This section describes the suggested maintenance and troubleshooting procedures. The
troubleshooting procedure is divided into two sections. The first section deals with basic
operation and connection of the equipment. The second section requires opening the unit and
using LED indicators and a simple multimeter to troubleshoot the unit down to the module level.
Only a qualified electronic technician should attempt this level troubleshooting.
7.3 B asic operation
PARAGRAPH
0
7.3.2
7.3.3
7.3.4
7.3.5
7.3.6
7.3.7
7.3.1 Excessive Output Voltage
CAUSE
External sense not connected (If used)
7.3.2 Poor Output Voltage Regulation
CAUSE
Unit is overloaded
Unit is programmed to wrong voltage
range.
Input line has fallen below spec. limit.
176
PROBLEM
Excessive Output Voltage
Poor Output Voltage Regulation
Overload Light On
Distorted Output
Unit Shuts Down After 1-2 Seconds
No Output and no lights on front panel
No output, but front panel controller is active.

Table 7-1: Basic Symptoms

SOLUTION
Connect external sense wires from TB2 on
rear panel to the AC power outlet TB1A
and TB1B
SOLUTION
Remove overload
Select correct voltage range.
Check input supply voltage.
California Instruments
or
MX Series