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ApplianceGuru.com: The Samurai Appliance Repair Forums > Do-It-Yourself Appliance Repair Help > The Kitchen Appliance Repair Forum > GE microwave JVM1650WB008 keypad problem |
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| Moderated by: BrntToast, RegUS_PatOff, appl.tech.29501 | Search Our Sites for More Info! |
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| GE microwave JVM1650WB008 keypad problem | Rate Topic |
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| Posted: Tue Oct 20th, 2009 06:24 am |
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1st Post |
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sawdust123 Grasshopper
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This unit is about 6 years old. The start and cancel buttons stopped working. The rest of the keypad works. I have reset the ribbon cable from the keypad to the circuit board and checked it for cracks. This seems OK. I have also peeled back the membrane to look for breaks in the copper traces beneath it. I can't see any. Before I purchase a new keypad, I want to rule out that this is not some sort of lock-out problem triggered by a bad door interlock switch or open thermal fuse. I have no idea if such sophistication even exists in this oven. I hope someone here can provide some insight. Also, does anyone know where I can get a schematic of this oven? It would be nice to avoid tracing the whole darned thing out. Thanks.
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| Posted: Tue Oct 20th, 2009 06:39 am |
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2nd Post |
Cactus Bob
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if it was just the start button a lot of things can keep it from starting , micro switches , thermal fuses , ect . but the cancel button will still work no matter what so you should have a bad keypad , but i have seen function loss from the eprom on the main board . there are no schematics of the board or keypad that i know of , board level repairs are frowned on from most appliance makers . it can be done you just need a working unit right next to it to take your measurements from ....... do you know someone with a microwave like yours , you can borrow there keypad from , for a test ? (that request will weed out the fair weather friends real quick ) ...... most of the time its the keypad . but sometimes its not , but rarely . realy realy rarely Last edited on Tue Oct 20th, 2009 06:50 am by Cactus Bob ____________________ SORRY ABOUT THE SPELLING , I FIX GREAT , I DON'T SPELL WELL |
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| Posted: Tue Oct 20th, 2009 05:50 pm |
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3rd Post |
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sawdust123 Grasshopper
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Thanks for the reply. I wasn't going to trace out the circuit board. That is too much work for me. Besides, I'm an analog guy, not a digital guy. I was just going to trace out the rest of the circuitry in the oven. I want to rule out safety switches and thermal fuses. Maybe you can answer one more question. I have seen the exploded diagrams of the oven on-line. Part #105 seems to be the entire keypad and circuit board assembly. However, it is so poorly labeled, I wanted some independent verification before I spent $100+ for it.
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| Posted: Tue Oct 20th, 2009 07:02 pm |
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4th Post |
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sawdust123 Grasshopper
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I think I may have found the problem. I just found a user/service manual on another repair site. It had all the schematics I needed. However, I think the answer was in the user section. This oven features a child lockout feature that we have never used. It disables the start button. You have to hold the cancel button down for three seconds to disable the feature. That would explain why neither button worked. Someone in my household must have inadvertently set this. Unfortunately, I am not at home now to verify. Just when man thinks he has made something idiot proof, nature invents a better idiot.
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| Posted: Fri Oct 30th, 2009 01:45 am |
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5th Post |
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sawdust123 Grasshopper
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I spoke too soon. I just got back into town and the problem wasn't a child lock-out. The oven works if you hit buttons 1-6 (1-6 minute instant start cooking) or the add 30 sec button. This pretty much rules out any problems with the TCOs. You just can't use the Start or Clear buttons. Replacing the control board assembly is about $150 (w/tax & shipping). Replacing the oven is probably less than $300. It is hard for me to justify throwing 50% of the replacement value into the repair of a 6 year old oven. Unless someone can come up with another thing for me to check, I think I will buy a replacement tomorrow. Any brands to avoid?
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| Posted: Fri Oct 30th, 2009 03:36 am |
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6th Post |
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RegUS_PatOff Fellow, Academy of Sublime Masters of Appliantology 
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from 31-9028 JVM 1650 PAD CONN PAD CONN SNACKS 7-14 COOK 8-14 SOUND LEVEL 9-12 DEFROST 4-15 ADD 30 SEC. 4-11 AM/PM 9-13 POWER LEVEL 3-14 TIMER 4-13 SURFACE LIGHT 7-12 VENT FAN 8-12 CLOCK 7-13 1 9-16 POPCORN 7-11 2 8-16 AUTO NITE LIGHT 6-12 3 7-16 DELAY START 6-13 4 6-16 TURNTABLE 5-12 5 5-16 REMINDER 5-13 6 4-16 TIME COOK 5-15 7 9-15 START 3-11 8 8-15 PREHEAT 8-11 9 7-15
____________________ The new repair forums==> http://appliantology.org RegUS_PatOff http://www.youtube.com/watch?v=oPAY2LsKVEw my video production: “Easter Seals Walk With Me” http://www.youtube.com/watch?v=-EBiLyYXMiA |
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| Posted: Fri Oct 30th, 2009 05:08 pm |
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7th Post |
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sawdust123 Grasshopper
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Thanks. I missed that part of the manual. It is funny that they don't list the HELP and CLEAR buttons. Since the add 30 sec is working I can rule out that pin 11 is OK. Pin 3 is the remaining suspect. If I can get the power level to work, Pin 3 is OK and the solution must be the controller. I found a somewhat similar microwave online at Best Buy for $180. I can't believe how cheap these are getting.
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| Posted: Sat Oct 31st, 2009 12:00 am |
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8th Post |
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sawdust123 Grasshopper
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OK, I have confirmed that line 3 is bad on the key panel (Clear/Start/Power) keys. I can't seem to replace just the keypad though. At least PartsDirect doesn't list just the keypad. I found a part listed as WB07X10532 called a Frame Control Panel but there is no pic. I don't know what this is. Last edited on Sat Oct 31st, 2009 12:03 am by sawdust123 |
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| Posted: Sat Oct 31st, 2009 12:15 am |
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9th Post |
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RegUS_PatOff Fellow, Academy of Sublime Masters of Appliantology
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sawdust123 wrote: .. part listed as WB07X10532 called a Frame Control Panel but there is no pic.pic is at RepairClinic
____________________ The new repair forums==> http://appliantology.org RegUS_PatOff http://www.youtube.com/watch?v=oPAY2LsKVEw my video production: “Easter Seals Walk With Me” http://www.youtube.com/watch?v=-EBiLyYXMiA |
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| Posted: Sat Oct 31st, 2009 12:55 am |
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10th Post |
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sawdust123 Grasshopper
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Just for grins and snickers I wired up some momentary mini switches to bypass the Start and Clear buttons. The oven is working again. However, my wife doesn't like my "unsightly" switches and wants a new one. The reviews I have seen on the GE 1540 seem pretty bad. Too bad, I really like GE's one touch cooking controls for 1-6 minutes.
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| Posted: Sat Oct 31st, 2009 01:04 am |
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11th Post |
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sawdust123 Grasshopper
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Thanks for the RepairClinic link. The part I need is the Control Panel Assembly. It is $89. A replacement oven is about $200. I know which way my wife will go...
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