4-2
Troubleshooting
Introduction
This section of the manual will assist you in troubleshooting and repairing the Model 2430.
Included are self-tests, test procedures, troubleshooting tables, and circuit descriptions. Note
that disassembly instructions are located in Section 5, and component layout drawings are at the
end of Section 6.
Safety considerations
WARNING
The information in this section is intended for qualified service personnel
only. Do not perform these procedures unless you are qualified to do so.
Some of these procedures may expose you to hazardous voltages that could
cause personal injury or death. Use caution when working with hazardous
voltages.
Be sure to observe the following precautions regarding heat sink cool-down
time and capacitor voltage bleed-down time:
Heat sink cool-down time: five minutes to 70°C, 15 minutes to 50°C.
Capacitor voltage bleed-off time: two minutes to 50V, five minutes to 5V.
Repair considerations
Before making any repairs to the Model 2430, be sure to read the following considerations.
CAUTION
The PC-boards are built using surface mount techniques and require spe-
cialized equipment and skills for repair. If you are not equipped and/or
qualified, it is strongly recommended that you send the unit back to the fac-
tory for repairs or limit repairs to the PC-board replacement level. Without
proper equipment and training, you could damage a PC-board beyond re-
pair.
•
Repairs will require various degrees of disassembly. However, it is recommended that
the Front Panel Tests be performed prior to any disassembly. The disassembly instruc-
tions for the Model 2430 are contained in Section 5 of this manual.
•
Do not make repairs to surface mount PC-boards unless equipped and qualified to do so.
(See previous CAUTION.)
•
When working inside the unit and replacing parts, adhere to the handling precautions
and cleaning procedures explained in Section 5.
•
Many CMOS devices are installed in the Model 2430. These static-sensitive devices
require special handling as explained in Section 5.
•
Whenever a circuit board is removed or a component is replaced, the Model 2430 must
be recalibrated. See Section 2 for details on calibrating the unit.
Summary of Contents for SourceMeter 2430
Page 3: ...TAIWAN 1FL 85 Po Ai Street Hsinchu Taiwan R O C 886 3 572 9077 Fax 886 3 572 9031 ...
Page 6: ...Other brand names are trademarks or registered trademarks of their respective holders ...
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Page 17: ...1 Performance Verification ...
Page 33: ...2 Calibration ...
Page 56: ...2 24 Calibration ...
Page 57: ...3 Routine Maintenance ...
Page 60: ...3 4 Routine Maintenance ...
Page 61: ...4 Troubleshooting ...
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Page 116: ...A 12 Specifications ...
Page 117: ...B Command Reference ...
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