Agilent Technologies 8753ET Service Guide

Chapter 7 7-7
Source Troubleshooting
Phase Lock Error
1. Make sure the A9 CC switch is in the ALTER position:
a. Remove the power line cord from the analyzer.
b. Set the analyzer on its side.
c. Remove the two corner bumpers from the bottom of the instrument with a T-15
TORX screwdriver.
d. Loosen the captive screw on the bottom cover’s back edge.
e. Slide the cover toward the rear of the instrument.
f. Set the switch to the ALTER position as shown in Figure 7-2.
g. Replace the bottom cover, corner bumpers, and power cord.
Figure 7-2 Switch Positions on the A9 CPU
2. Switch on the analyzer and press
to generate new analog bus correction constants. Then press
to generate default
pretune correction constants.
Press to
generate new pretune correction constants.
3. Press and observe the analyzer display:
• No error message: set the A9 CC switch to the NORMAL position. Then refer to
“Post-Repair Procedures” on page 14-53 to verify operation.
• Error message visible: continue with “A4 Sampler/Mixer Check”.
System
SERVICE MENU
TESTS
46 x1
EXECUTE TEST
System
SERVICE MENU
TESTS
45 x1
EXECUTE TEST
System
SERVICE MENU
TESTS
48 x1
EXECUTE TEST
YES
Preset

Agilent Technologies 8753ET Specifications

General

Brand	Agilent Technologies
Model	8753ET
Category	Measuring Instruments
Language	English