Agilent Technologies 6060B User Manual

27
Table 3-2. Selftest Error Code
Code Error Description Procedure
-4 The primary microprocessor U203 read/write test to
the GP-IB talker/listener chip U202 failed.
Use Primary S.A. Test Tables 3-4 and 3-6 to check
address and data lines.
- 5 The primary microprocessor U203 test of the internal
trigger lines failed.
Use Primary S.A. Test Table 3-7 to check the primary
trigger circuit. Then refer to " Trigger Circuit
Troubleshooting" and Figure 3-8.
-101 Secondary microprocessor U301 internal RAM failure. Replace U301.
-102 Secondary microprocessor U301 internal ROM failure,
or thermistor RT 551 missing or open.
Check RT 551, replace U301.
-103 Secondary microprocessor U301 internal timer failure. Replace U301.
-104 EEPROM (U211) checksum error. Create a checksum by programming: ''CAL:MODE
ON;:CAL:SAVE" then turn power on. If error code
-104 does not appear again, calibrate the load as
described in the Operating Manual. If error code -104
does appear again, check the
EEPON
line (test point
in Table 3-3). If
EEPON
is ok, use S.A. Table 3-6
to check the data input and output lines to U211.
-105 Main DAC circuit (U320/U326) zero or full scale
point is above the high tolerance level.
Refer to "DAC Circuits Troubleshooting" and
Figure 3-3.
-106 Main DAC circuit (U320/U326) zero or full scale
point is below the low tolerance level.
Same as above.
-107 Transient DAC circuit (U321/U325) zero or full scale
point is above the high tolerance level.
Same as above.
-108 Transient DAC circuit (U321/U325) zero or full scale
point is below the low tolerance level.
Same as above.
Test Points
Table 3-3 lists test points that are referred to in many of the troubleshooting procedures. Each test point is identified by a
circled number (e.g.,
), the circuit point (e.g., U308-1), and signal name (e.g., CV PROG). The "Measurement and
Conditions'' column describes the signal that should be measured and the conditions (e.g. operating mode) required to make
the measurement. The circuit locations of the test points are shown on the foldout schematic diagrams (Figure 6-1, sheets 1
through 6) and on some of the troubleshooting diagrams (Figures 3-3 through 3-10). All of the test points are located on the
main circuit board as shown on foldout diagram Figure 6-2.
Note: When taking measurements, make sure that you connect the DMM or oscilloscope common to the proper
circuit common. Measurements at test points through are referenced to test point
(primary/chassis common). Measurements at test points through are referenced to test point
(secondary common).

Agilent Technologies 6060B Specifications

General

Brand	Agilent Technologies
Model	6060B
Category	Accessories
Language	English