tag:blogger.com,1999:blog-3303788613420236381.post1446185644791127896..comments2023-03-29T08:43:17.913-04:00Comments on Getting In Too Deep: DV7 Dead No Lights, will not chargeHoosierhttp://www.blogger.com/profile/05092108804833084210noreply@blogger.comBlogger39125tag:blogger.com,1999:blog-3303788613420236381.post-6981800545246797832015-10-16T11:55:53.651-04:002015-10-16T11:55:53.651-04:00Since you did not include a model number, I could ...Since you did not include a model number, I could only guess which DV7 you have. And I am not familiar with the term 'Power IC' sounds like the tech is just guessing. There is specific information on the Animation flash I'd done some years back. <br />http://www.mayohardware.com/Animation/DV7.html<br /><br />Roll over the part numbers for details on values. Again as the Disclaimer Hoosierhttps://www.blogger.com/profile/05092108804833084210noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-48737734709861020122015-10-15T22:46:21.682-04:002015-10-15T22:46:21.682-04:00Good Night, I have a DV7 and when i plug it in the...Good Night, I have a DV7 and when i plug it in the battery wont charge and the charging light doesn't come on, i had it checked and the say the power ic needs to be replaced, do you know where i could order one? and does it have to be a specific power ic for that type of DV7 that have to replace the old one?Anonymoushttps://www.blogger.com/profile/12035233749611804837noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-61587179046138307612013-11-01T16:01:49.294-04:002013-11-01T16:01:49.294-04:00It's a MOSFET problem but not in the DC In are...It's a MOSFET problem but not in the DC In area, may be over by the charge circuit. Usually shorted. They are the flat type MOSFET's without legs.Hoosierhttps://www.blogger.com/profile/05092108804833084210noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-13305961976402550122013-09-30T12:40:54.422-04:002013-09-30T12:40:54.422-04:00I have a DV7-1150ev(LA-4082P) that when i connect ...I have a DV7-1150ev(LA-4082P) that when i connect the power supply and the battery is blinking the charging led ( the side led near the power connector is not light up) and i hear a click noise. When i press the power button is power for 1 sec and shutdown again, Also with the charger only, no light at all and when i press the power button nothing happen. Any help?Fotishttps://www.blogger.com/profile/00245475236195234372noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-2705708810917727792013-04-17T10:03:45.830-04:002013-04-17T10:03:45.830-04:00Thanks Ser - Other videos are coming out. I'm ...Thanks Ser - Other videos are coming out. I'm busy with other projects, and lately getting a lot of programming tasks and animation.Hoosierhttps://www.blogger.com/profile/05092108804833084210noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-42696962564005434562013-04-17T09:08:51.030-04:002013-04-17T09:08:51.030-04:00Well, it's not easy to donate without creditca...Well, it's not easy to donate without creditcard/paypal. Just got paypal especially for this :)Serhttps://www.blogger.com/profile/03808745592029262467noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-70782859051977428932013-04-04T17:08:31.509-04:002013-04-04T17:08:31.509-04:00Sure, glad I could be of help. Also thanks for don...Sure, glad I could be of help. Also thanks for donating. Many don't know but even $3-5 helps me buy parts for other experiments. <br /><br />Everything is not so simple.<br />Hoosierhttps://www.blogger.com/profile/05092108804833084210noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-84138452518320909672013-04-04T15:14:54.208-04:002013-04-04T15:14:54.208-04:00Thank you very much for sharing this. Had a DV4 wi...Thank you very much for sharing this. Had a DV4 with exact same symptoms, now fixed thanks to this info.Serhttps://www.blogger.com/profile/03808745592029262467noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-49079474820708268592013-01-18T19:29:06.767-05:002013-01-18T19:29:06.767-05:00I have the same situation with a DV7, is there any...I have the same situation with a DV7, is there anyway that I can send you the motherboard so you can fix it ?<br />How can I contact you ? I'm in NYC.Tonyhttps://www.blogger.com/profile/10093620609218789906noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-9068357187822165002012-11-05T20:54:37.314-05:002012-11-05T20:54:37.314-05:00Cytherian: You have a short in the front end, eit...Cytherian: You have a short in the front end, either the first mosfet on topside by power-in, or on the bottom. It seems to be a dead short. <br /><br />Check with meter. Also check ceramic caps in the front end. If you tried a fully charged battery it may run/come on but the short may also keep it off until corrected.Hoosierhttps://www.blogger.com/profile/05092108804833084210noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-45345560793417649452012-10-16T15:37:39.115-04:002012-10-16T15:37:39.115-04:00Hi Mayo,
Given your experience with dv7 power pro...Hi Mayo,<br /><br />Given your experience with dv7 power problems, I'm hoping you may be able to save me some time in troubleshooting my particular issue. It's a dv7-1232nr that won't boot up. The symptoms are: power LED does not light when plugged in (but flashes very briefly when plug is disconnected), battery light keeps flashing, lights and fan momentarily come on when power Cytherianhttps://www.blogger.com/profile/08613570208894172070noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-20850385476562554702012-08-07T08:36:16.149-04:002012-08-07T08:36:16.149-04:00also, is there a difference between SI4835d and SI...also, is there a difference between SI4835d and SI4835b mosfet? basically, is it a problem if I use one with a different channel?chaplinhttps://www.blogger.com/profile/07795326389843834201noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-21864129893766994892012-08-07T08:07:48.112-04:002012-08-07T08:07:48.112-04:00Hi Mayo,
thanks a lot for your solution, I wanna...Hi Mayo, <br /><br />thanks a lot for your solution, I wanna make sure my dv7 is causing the same issue as well, as I do not want to buy the part and replace it just to find out that it still wont work. I am 80% sure that it IS the problem, since i have worked on this laptop 3 times for other issues, but would like to eliminate all doubt before proceeding. <br /><br />I have looked around, butchaplinhttps://www.blogger.com/profile/07795326389843834201noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-85738448336764960022012-06-27T08:17:02.838-04:002012-06-27T08:17:02.838-04:00Glenn: It too is a SI4835.
Though an AO4407a or ...Glenn: It too is a SI4835. <br />Though an AO4407a or AO4427 would work also.<br /><br />That chip, when it gets the signal (~3v) from the charge pin on the battery connector, closes the gate so that power is sent to the battery, and charge light comes on.Hoosierhttps://www.blogger.com/profile/05092108804833084210noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-10082160774468905502012-06-27T00:06:15.503-04:002012-06-27T00:06:15.503-04:00Dear Belguim (Above) I have the DV7-1240 us with t...Dear Belguim (Above) I have the DV7-1240 us with the same requires battery and will not charge. The chip on the under side of the board from the SI 4835 on mine is so badly smoked that i cannot read what chip it is. If you (or anyone else) would tell me what the chip is it might help us both.<br /><br />Thanks in advance,<br />GlennNDavis at fuse.netAnonymoushttps://www.blogger.com/profile/15281390580633394881noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-38742097835903545762012-01-26T17:19:24.115-05:002012-01-26T17:19:24.115-05:00Hi there,
Just a quick question ,
I have here ...Hi there, <br /><br />Just a quick question , <br /><br />I have here this laptop , hp pavilion dv7-1240eb, symptoms are, <br /><br />works fine on a charged battery,<br />when charger is connected , led indicator on the side works<br />does not charge the battery, an does not power on with only charger connected .<br /><br />You think this could be related to the SI4835 mosfet , or should i lookthttps://www.blogger.com/profile/11598941141746898652noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-82462743483674941152011-12-22T09:43:40.578-05:002011-12-22T09:43:40.578-05:00Cesar: I gave up looking for motherboard schematic...Cesar: I gave up looking for motherboard schematics long ago. I had seen a Vietnamese site years ago with several, but I did not save the link.<br /><br />AirFrance: You can find the AO Mosfets at http://www.aosmd.com <br />Alpha and Omega has the complete list. If you get the specs for the part, you could cross reference it at Newark Electronics. http://www.newark.comHoosierhttps://www.blogger.com/profile/05092108804833084210noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-86344336405393289032011-10-11T21:28:38.066-04:002011-10-11T21:28:38.066-04:00Hey, just finished with a DV7-1020US that had the ...Hey, just finished with a DV7-1020US that had the power issue. Turns out that the AO4433 (PQ103) chip is shorted in both directions. However, they're out of production, and digikey does not stock any fet at the same specs. Any idea on a replacement? I've tried other fets with similar specs (or as close as I could get), but nothing is working.AirFranceCrashWatchhttps://www.blogger.com/profile/17240437910361022237noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-78988240880251912532011-10-04T21:25:35.523-04:002011-10-04T21:25:35.523-04:00Hello Mayo,
i've been trying to locate a site...Hello Mayo, <br />i've been trying to locate a site where i can download the schematic to my dv7 motherboard, the mosfet you pointed out is burnt in my motherboard. Do you know where i can get the schematics for my board. jbk00 la-4091 <br />hp model # 506124-001<br />i want to order the right mosfet the first time.<br />thanks<br />CesarAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-84252723856348020312011-08-06T03:47:41.725-04:002011-08-06T03:47:41.725-04:00thank you for taking the time to make this blog, i...thank you for taking the time to make this blog, i have this issues, PSU is good, DV7-1025nr does not power on, i am pretty sure this issue is mine as well, do you have another one of those mosfets? can you sell me one? hardwaremack at gmail dot com, i am in detroit michigan.Adminhttps://www.blogger.com/profile/13581539278451883903noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-70685472911015789022011-06-02T10:37:25.468-04:002011-06-02T10:37:25.468-04:00I feel ya Robt. seems like the schools are pushing...I feel ya Robt. seems like the schools are pushing out Windows and peripheral installers and no electronics techs. Many boards have a $39 repair, but shops make you buy a new mobo for a lot more, then add labor. That was the reason I started here in CLT. I think you may have to talk to a computer shop in the area, and ask who's good at component level work.Hoosierhttps://www.blogger.com/profile/05092108804833084210noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-57970019416371074772011-06-02T10:24:32.095-04:002011-06-02T10:24:32.095-04:00I'm looking for some help in Sacramento, CA. H...I'm looking for some help in Sacramento, CA. How do I find a real tech in my area to repair my boards? I have 2 dv7 boards - one with an NG vga chip and the second with the power issue. They are both dv7-1245dx. And a couple of other mb's. You don't just look in the yellow pages!robertghttps://www.blogger.com/profile/16383559968367547315noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-87750673217495596632011-04-14T16:51:45.439-04:002011-04-14T16:51:45.439-04:00I just checked the southbridge, it's shorted. ...I just checked the southbridge, it's shorted. <br />Thanks for the tips anyway!Unknownhttps://www.blogger.com/profile/12633923673037852651noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-47174054530534111522011-04-13T10:00:47.701-04:002011-04-13T10:00:47.701-04:00Alucard/Dracula: The problem could also be the the...Alucard/Dracula: The problem could also be the the fan/gpu heatsink. Some times when the compound dries out too quickly, it offers very little protection and cooling. Also that the heat sensor could be defective. I have not experienced that issue. But maybe a clearing of the CMOS (cold reset) could bring it back to life enough to check with SpeedFan to get the sensor readings.Hoosierhttps://www.blogger.com/profile/05092108804833084210noreply@blogger.comtag:blogger.com,1999:blog-3303788613420236381.post-16719522343866221612011-04-12T11:27:29.088-04:002011-04-12T11:27:29.088-04:00Mayo, I got a DV7 (Core i7 and ATi Video card )wit...Mayo, I got a DV7 (Core i7 and ATi Video card )with a wierd problem. I made a repair on his motherboard...the small capacitor near the card reader was shorted. I putted a new one and the notebook worked fine for 1 week.<br /><br />1 Week later he came back to me again telling that the notebook got too hot near the GPU/CPU area and them turned off by it self and now he wont turn on.<br /><br />I Unknownhttps://www.blogger.com/profile/12633923673037852651noreply@blogger.com