GE Monogram ZV750, Техническое обслуживание руководство, Страница: 19 / 30

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Troubleshooting
WARNING
POWER MUST BE DISCONNECTED
BEFORE SERVICING THE APPLIANCE
Check parts in the black box as follows:
All six connectors are locked in place and no leads are broken.
Connector solder joints are not broken on PCB copper side.
Fuse is OK.
Capacitor (12.5uf 250VAC); Check that cap, is not open or shorted by using VOM. Note #1 — Loosen and re-position entry/display assembly as follows:
Loosen (2) screws on under surface of hood
Loosen (2) screws on assembly pusher plate
Check for button protrusion through the hood
holes and that buttons have movement Note #2 —
PUSH BUTTONS STUCK?
PUSH BUTTONS STUCK?
UNSTICK/ADJUST
NOTE #2
CHECK/ADJUST
MICROSWITCH
INSPECT
PCB IN
BLACKBOX
NOTE #1
INSPECT
PCB IN
BLACKBOX
NOTE #1
REMOVE
TRIAC
ORANGE
LEAD
REMOVE/
RE-SEAT
RIGHT
FILTER
ORDER/
INSTALL
TRIAC
ORDER/
INSTALL
TRANSFORMER
ORDER/INSTALL
ENTRY/DISPLAY
ASSEMBLY
& CONTROL
PCBs
CHECK/MODIFY
TRIAC
CONNECTIONS
ORDER/INSTALL
CONTROL
PCBs
FIX/
ORDER
MOTOR
FIX
WIRING
FIX
WIRING
REMOVE
RIGHT
FILTER
ORDER/INSTALL
ENTRY/DISPLAY
SUBASSEMBLY
NO
NO
NO
NO
NO
NO NO
YES
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
NO
NO
YES
YES
YES
HOOD CONTROL
DEAD?
FAN
OK?
FAN BLADES
BLOCKED?
RED DISPLAY
LIGHT
BLINKING?
RED DISPLAY
LIGHT
BLINKING?
RED DISPLAY
LIGHT
BLINKING?
12V AC
AT CONNECTOR
(CN4B) IN
BLACKBOX?
120V AC
AT
TRANSFORMER
• CHECK FM CAP (CN3)
• UNPLUG CN1, CHECK
FM RESISTANCE
• FM OK?
PRIMARY?
FUSE IN
BLACKBOX
OK?
REPLACE
UNIT NOW
OK?
120V AC
AT HOOD?
HOOD
OK?
LIGHTS
OK?
LIGHTS
ON?
LIGHTS
ALWAYS
ON?
HOOD
LIGHTS
FLICKERING?
YES
HOOD
LIGHTS
FLICKERING?
YES
YES
NO
NO
NO
DONE
YES
YES
NO
DONE
DONE
ORDER/INSTALL
ENTRY/DISPLAY
ASSEMBLY
& CONTROL
PCBs
HOOD
OK?
NO
YES
DONE
DONE
DONE
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GEA00012
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