Tektronix TDS2024B

Maintenance
TDS1000B and TDS2000B Series Oscilloscope Service Manual
6-- 21
See
boot up
screen?
Errors?
Front panel
problems?
Run probe check
on each channel
Put scope or
frequency counter
on probe comp
Replace main
board
1 kHz?
Verify LCD
connector and
cable values
Good
voltages?
Replace main
board
Replace display
or display cable
Yes
No
Probe
check Ok?
Replace main
board
Connect
external trigger
to probe comp
Set trigger
source to EXT
Press set 50%
Trigger
indicator ON?
No
Yes
Replace main
board
Yes
No
Yes
Yes
No
Yes
No
Yes
Turn on power
Does screen
lighten?
Yes
From Figure 6-6
To Figure 6-6
No
A
B
To Figure 6-5
C
To Figure 6-5
D
No
No
E
To Figure 6-7
Figure 6--4: Oscilloscope troubleshooting tree (1 of 4)