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Search: Posts Made By: AJ847.63e
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 10-19-2021, 10:14 PM
Replies: 11
Views: 402
Posted By AJ847.63e
Re: 820-3437-B No green light - Hot ISL - CHGR_UGATE Short

Thanks. I believe R and C were blowing because R7190 and R7191 were installed when they shoudn't of been. I removed both and R7105 stopped blowing but I think the damage was already done and as...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 10-19-2021, 07:47 AM
Replies: 11
Views: 402
Posted By AJ847.63e
Re: 820-3437-B No green light - Hot ISL - CHGR_UGATE Short

Awesome, thanks. I’ve been told I can leave it off for now just for testing so I’m going to do that. It and R7105 kept blowing so if I can remove a variable there it will make testing what keeps...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 10-19-2021, 06:18 AM
Replies: 11
Views: 402
Posted By AJ847.63e
Re: 820-3437-B No green light - Hot ISL - CHGR_UGATE Short

Yes orientation, (dot on the top left facing C7105) soldering looks good. I ended up replacing the ISL again, I was really struggling to get pins 1,2,3 looking nice and shinny. Once I replaced it the...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 10-13-2021, 12:20 AM
Replies: 11
Views: 402
Posted By AJ847.63e
Re: 820-3437-B No green light - Hot ISL - CHGR_UGATE Short

Ok U7100, C7125 and Q7130 have been replaced. Pin 1 on U7100 is now reading 330K ohm.

ISL is still getting really hot, and looks like R7105 is blown again. Not as much as before though, now it's...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 10-06-2021, 06:17 AM
Replies: 11
Views: 402
Posted By AJ847.63e
Re: 820-3437-B No green light - Hot ISL - CHGR_UGATE Short

Forgot to mention I’m Really struggling to get the ISL joints on the left hand side (pin 1-7) looking shinny is that normal? When replacing the ISL I wicked the pads clean and they looked fine, but...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 10-06-2021, 06:13 AM
Replies: 11
Views: 402
Posted By AJ847.63e
Re: 820-3437-B No green light - Hot ISL - CHGR_UGATE Short

Thanks Piernov. Just to confirm by charger IC you mean the ISL6259 U7100? I’ll have to order a new one if so, this is the second one I’ve tried and this was stolen from my only 3437 donor. This one...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 10-05-2021, 11:05 PM
Replies: 11
Views: 402
Posted By AJ847.63e
820-3437-B No green light - Hot ISL - CHGR_UGATE Short

Hi All,

Just wanted to see if I can get some advice on this 3437 I'm working on. It had extreme corrosion around the SSD and airport (WIFI) area. C3740 has both pads removed due to the corrosion,...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-15-2021, 02:32 AM
Replies: 42
Views: 1,416
Posted By AJ847.63e
Re: 820-01598 Intersil 9240 chipped?

Thanks I’ll have a look and get back to you. Going to try see if I can find some donor boards of Ali express first so I can get other parts needed as well. I’m suspecting the CD 3217 (u3100) is...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-13-2021, 05:32 AM
Replies: 42
Views: 1,416
Posted By AJ847.63e
Re: 820-01598 Intersil 9240 chipped?

Thanks.

1: 2: & 5: I might send you a pm see if I can put in a order for the esd diodes, and regular diodes. By ďpaddle boardĒ I assume you mean the ribbon with the male twin USB c connectors? Do...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-13-2021, 12:32 AM
Replies: 42
Views: 1,416
Posted By AJ847.63e
Re: 820-01598 Intersil 9240 chipped?

Sigh. I’m a muppet! In getting the connector back on I think I know what the problem is. Pin 18 on J3300 is now missing. Pin 19 outside section and bottom section of the connector are there but the...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-12-2021, 10:54 PM
Replies: 42
Views: 1,416
Posted By AJ847.63e
Re: 820-01598 Intersil 9240 chipped?

Thanks for the clarification Piernov. I was just surprised the schematic and boardview I downloaded from this forum actually matched my board when XinZhiZao did not. Normally there the ones who have...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-12-2021, 10:43 PM
Replies: 42
Views: 1,416
Posted By AJ847.63e
Re: 820-01598 Intersil 9240 chipped?

Thanks. Checked the port all the pins look fine but the gold shield outer casing is starting to peel back. I did have a bit of trouble lining the port up earlier. Stupid me removed the screws that...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-12-2021, 01:57 AM
Replies: 42
Views: 1,416
Posted By AJ847.63e
Re: 820-01598 Intersil 9240 chipped?

Well that’s frustrating! Hooked up the battery as instructed by someone on the rossmann forums and now I’m back to 5v. God I hope the bloody ISL has not died again!��

port closest to the speakers...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-11-2021, 07:56 AM
Replies: 42
Views: 1,416
Posted By AJ847.63e
Re: 820-01598 Intersil 9240 chipped?

Thanks. Yes that was for the resistor though in circuit. When I measure across the pads I got 2.6M. Resistor out of circuit was also 2.6k I think. Only got a quick glance as I havenít got anything to...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-11-2021, 07:17 AM
Replies: 42
Views: 1,416
Posted By AJ847.63e
Re: 820-01598 Intersil 9240 chipped?

Thanks. Surprised the schematic in xin zhi zao is wrong, Piernov said there the only ones that have it for the 1598 the one we have here on badcaps is for another board he said. But when I removed...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 09-11-2021, 05:39 AM
Replies: 42
Views: 1,416
Posted By AJ847.63e
Re: 820-01598 Intersil 9240 chipped?

Finally got my 9240s in and it looks like we’re finally making slight progress!

Finally received my replacement ISL 9240 today. Installed a fresh one and now VDDP is 5V. A friend told me to check...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-31-2021, 09:44 AM
Replies: 42
Views: 1,416
Posted By AJ847.63e
Re: 820-01598 Intersil 9240 chipped?

Thanks Iíll try a few shout around.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-31-2021, 04:37 AM
Replies: 42
Views: 1,416
Posted By AJ847.63e
Re: 820-01598 Intersil 9240 chipped?

Yup think thatís best. The isl got a bit more chipped in the reball process so that probably killed it if it was not already dead. Iíll post back once the new isl is installed in a few weeks time....
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-30-2021, 11:24 PM
Replies: 42
Views: 1,416
Posted By AJ847.63e
Re: 820-01598 Intersil 9240 chipped?

Interesting. I’ve reinstalled the isl, made sure there were no shorts from reinstall and now the top port is what it was earlier, drawing 150ma but the bottom port towards the lcd connector is back...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-30-2021, 06:41 PM
Replies: 42
Views: 1,416
Posted By AJ847.63e
Re: 820-01598 Intersil 9240 chipped?

Thanks. Thought so just wanted to make sure. Yeah rewa look pretty good, looking forward to it. Shame they donít do their mac corse anymore.

Iím going to try install the isl I reballed this arvo...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-30-2021, 08:34 AM
Replies: 42
Views: 1,416
Posted By AJ847.63e
Re: 820-01598 Intersil 9240 chipped?

Thatís the problem though finding dead boards isnít exactly easy here, especially with eBay and everyone lying with the ďitís untestedĒ BS. I agree itís a waste but when the market forces it you just...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-30-2021, 01:28 AM
Replies: 42
Views: 1,416
Posted By AJ847.63e
Re: 820-01598 Intersil 9240 chipped?

Ok managed to reball the chip and not too shabby if I donít say so myself.

https://ibb.co/3fJ6BVh

https://ibb.co/RHWZXdP

Well the bottom row are bigger than the rest but considering this is...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-29-2021, 11:19 PM
Replies: 42
Views: 1,416
Posted By AJ847.63e
Re: 820-01598 Intersil 9240 chipped?

Ok tried the reflow and need a good slap across the face. I was really struggling to get the heat in, man these boards take 10 times longer than the 3437 or 165. Finally got it molten and knocked it...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-29-2021, 06:27 AM
Replies: 42
Views: 1,416
Posted By AJ847.63e
Re: 820-01598 Intersil 9240 chipped?

Yes amtech do sound very set in their ways which is a shame. Surprised they didnít want to work with you, pretty slack. There definitely loosing a lot of sales as their website looks so old and...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 08-29-2021, 06:01 AM
Replies: 42
Views: 1,416
Posted By AJ847.63e
Re: 820-01598 Intersil 9240 chipped?

Thanks, fingers crossed. Yes I’m using amtech 559V2TF bought from jessa @ iPad rehab. Only one I’ve tried so far, once it runs out I’m planning on trying the one Tim @ TCRS uses. I find the 559 burns...
Showing results 1 to 25 of 48

 
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