6-1
CHECKING FLOW CHART BY FAILURE MODE
Check voltage – Main PCB(009A) CN14 (Pin 10 and 12)
No display (No power)
Blank display
Enter key input
Yes
No
Yes
Some beep
sound?
Cook-top display
blank?
Check AC input voltage of Main PCB
-Main PCB CN2 (pin 1 and 3)
Replace the cook-top display PCB(010A)
(-)4.5V ~ (-)5.5V ?
END
Replace the main PCB(009A)
END
1
CN14(Pin 10 and 12)
The voltage should be
(-)4.5V ~ (-)5.5V
Main PCB(009B)
No
Yes
No
Check the thermal fuse
(See the page 3-1)
(Go to page 6-4)
Summary of Contents for LRE30451
Page 1: ...Service Digital Appliance TRAINING MANUAL ELECTRIC RANGE LRE30451 LRE30755 ...
Page 8: ......
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Page 11: ...j j j j LRE30451 LRE30755 ...
Page 67: ...8 1 APPENDIX A SCHEMATIC DIAGRAM OF PCB ...
Page 73: ...10 3 WARMNING DRAWER SELF CLEANING For Model LRE30755SW SB ST ...
Page 74: ...10 4 CLOCK DISPLAY ON CR Warming Zone CONV BAKE CONV ROAST For Model LRE30755SW SB ST ...
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