– 42 –
Unit Dead (Blank Display)
Control and/or Display Does Not Operate Properly
Note: Use this diagnostic procedure if unit has one of the following malfunctions:
• No beep (check control program for beeper MUTE)
• Some or all keys do not operate (check for CONTROL PANEL LOCKED)
• Display does not show what was entered
• Display erratic
• Display blank (check control for display turned OFF)
• Cannot clear display
Perform Low Voltage
Transformer Test.
Does transformer
pass test?
YES
NO
Replace main
PCB. If not fixed,
replace control
panel.
Perform Control
Panel Test.
Does control panel
pass test?
YES
NO
Replace control
panel.
Replace low
voltage
transformer.
Check for continuity
between line and neutral
on power cord.
Is there continuity?
YES
NO
Perform Low
Voltage
Transformer Test.
Does low voltage
transformer pass
test?
Replace low
voltage transformer.
NO
YES
Check the following
for an open:
!
Fuse
!
Cavity TCO
!
Magnetron TCO
All OK?
Repair or replace.
NO
Check wiring and
connectors for an
open condition.
YES
Replace main
PCB.
Содержание Advantium 120 SCA1000
Страница 15: ... 13 GEA01122 Figure 3 Vent Fan Airflow ...
Страница 16: ... 14 Notes ...
Страница 17: ... 15 Notes ...
Страница 59: ... 57 Schematics and Wiring Diagrams 02 05 2 12 8 Ω 2 5 Ω 22 5Ω 36 6 Ω B Y 32 Ω G R 7 Ω B W 18 Ω W G 24 Ω ...
Страница 60: ... 58 2001 ...
Страница 64: ... 62 Illustrated Parts Breakdown ...
Страница 65: ... 63 ...
Страница 66: ... 64 ...
Страница 67: ... 65 ...
Страница 68: ... 66 ...
Страница 72: ... 70 Notes ...
Страница 73: ... 71 Notes ...
Страница 74: ... 72 ...