Maintenance
TDS 200 Series Digital Oscilloscope Service Manual
6–39
Begin with this troubleshooting tree to isolate a problem to a specific trouble-
shooting procedure.
Check diagnostic screen
displayed at power-on.
Any
failed
messages?
Does
backlight
come on?
Is
the display
functioning
properly?
Is display
color abnormal
(dark blue, green, or
orange)?
Go to Troubleshooting
Display (page 6–42).
Does the
instrument
turn on?
Go to
Troubleshooting
Power Supply
(page 6–40).
Go to Checking
Probe Comp
(page 6–40).
Is there
a display?
Plug the instrument into a
proper power source and
press the power button.
Go to Troubleshooting
Backlight (page 6–41).
Yes
No
Yes
Yes
No
Yes
No
Yes
No
Yes
No
Go to Checking
Probe Comp
(page 6–40).
No
Instrument should be functioning.
Try the Other Troubleshooting
procedures (page 6–46) and the
Front-Panel Troubleshooting
(page 6–43) if other problems exist.
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