Philips M3000A, Service Manual

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Part 2 Isolating and Solving Instrument Problems
188 Troubleshooting the Instrument
“Measurement
Server not sup-
ported” status
message Either
M3001A Measurement
Server is connected to an
M3046A Monitor with
Rev. D or lower software.
This conbination does not
allow monitoring.
Or
M3000A Measurement
Server is connected to an
M3046A Monitor with
Rev. E software. This con-
bination does not allow
monitoring. Use only M3000A Meas-
urement Servers with
M3046A Monitors with
Rev. D or lower software.
Use only M3001A Meas-
urement Servers with
M3046A Monitors with
Rev. E software.
Power Supply related problems
See Troubleshooting the Front-Panel LEDs earlier in this chapter.
Display and LCD Adapter Board related problems
Monitor screen
is blank. Instrument appears to boot
as it should; alarm LEDs
switch on/off, successful
test sound, and yellow
LED on the System Board
blinks.
Display and other cables
not seated correctly.
See Troubleshooting the
System Board LEDs ear-
lier in this chapter.
Refit cables correctly.
If this does not work,
replace the LCD Display
Assembly.
Fluid dripping
or appearing
below Instru-
ment. LCD assembly damaged
or cracked. Replace the LCD Display
Assembly.
Decrease in
light intensity
on display.
Brightness
decreases from
top to bottom or
bottom to top. One of the two backlight
tubes is worn. Replace both backlight
tubes. Although it is unu-
sual for both tubes to need
replacing at the same
time, you are recom-
mended to do so since
replacement is not easy.