Hi there bought a Job Lot 5 Dell Latitude E5430 Laptops but all have bios password on them how do I go about getting them romoved or reset
Thanks...
garrymc123
Badcaps Veteran
Last Activity: 08-26-2024, 03:35 PM
Joined: 04-23-2010
Location: Ayrshire
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Artlii Projector Enjoy2 1080P Mini Smart Projector Power Supply Repair
Hi There got one of these projectors with no power after stripping down the power supply the main fuse on the board has blown and the n-channel MOSFET is shorted so need to replace the small 6-pin ic but not sure about the ic number 63 523 also the values of the resisters that are blown r24 r28 r29 r30 and also if there is a compatible to the MOSFET KEF5N65
Thanks for any info -
Power Board Ic Identification
Hi there
Looking for some advice i have this power board out of a dj light and it had no power so checked fuse f3a which was blown so checked diodes and one had failed so changed it but have a Zennor diode fail also ZD1 not sure what code is on it the main problem is trying to identify ic Q1 s its all scored off on the board it says 6n60 had a google but couldn't find anything
Any Help Appreciated -
Re: Luxor TV board input board change but picture upside down
Brilliant yokoono that it sorted thanks again to this forum.. Thanks -
Re: Luxor TV board input board change but picture upside down
Yeah it is a ves panel...Leave a comment:
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Luxor TV board input board change but picture upside down
Looking for some advice changed over the video input board due to bad hdmi ports but now the picture is upside down tried the service menu but can't find anything to do with flip the picture..
Is there anything I can do to flip the picture or do I need to change the board again..
Thanks
Garry... -
Re: Dell S2415Hb 24 No Power ic burnt
Thanks, sam sam sam for your reply but I do apologise I made a spelling mistake it was APW7302B 2A 24V 340kHz Synchronous Buck ConverterLeave a comment:
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Re: Dell S2415Hb 24 No Power ic burnt
managed to get hold of this PW7302B 2A 24V 340kHz Synchronous Buck Converter but its only 2amp output will it do just now till I get a hold of the 3amp oneLeave a comment:
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Dell S2415Hb 24 No Power ic burnt
Hi, there got this monitor to repair no power after inspecting the board I noticed ic 301 had a burn mark on top of it think it's an apw7301 buck convertor I am trying to source a replacement but can only find them in china does anyone know of compatible ones I can source locally. Will I need to check anything else on the board before I replace it and what is it for is backlight is it changes4.5V to 24V
Thanks for any information... -
Re: Disco ball adapter Fail ( No Power )
ahh makes sense now thanks for your helpLeave a comment:
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Disco ball adapter Fail ( No Power )
Hi there repairing this one while waiting on parts for my other power supply.
The adapter just died its 13.5 VDC @ 2 A so on testing I found a short on the output diode SR3010010? can't make out the last number/Letter but it's a dual diode with output on the center pin the bit that I don't understand is the center pin has been cut off and the two pins that go into the board are shorted together with the connection on the board I have included pictures. So I don't understand what exactly the diode is doing in the circuit. So any help or explanation will be much appreciated.
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Re: ADJ disco light PFC60-12 Power supply repair
And yip got ma bulb tester at the ready for testing when the parts arrive...Leave a comment:
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Re: ADJ disco light PFC60-12 Power supply repair
Thanks to everyone for their help I have tested more components fuse is testing ok on the gate side of the ic
FHF8N60 on Q2 sot-23 ss8550 y2 I have a short between pin1- Base and pin3- Collector and on U1 I have a short between pin 1 Ground and Pin 6 out is there anything more I should be testing and where can I source these parts. DIFF is going to sort me out with a new FHF8N60Leave a comment:
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Re: ADJ disco light PFC60-12 Power supply repair
Hi, Guys thanks for all the info I will check all these parts when I'm back at the unit. I have attached a close-up of u1 D3 Has checked out ok but if I remember right it's probably me removing it to test then putting it back on is why it looks so charred but it has tested ok. My other question is where can ai get an equivalent replacement of FHF8N60 as I can only get them from China. Also, can someone confirm wich pin is the gate on the FHF8N60 as according to the datasheet middle pin is the gate but the middle pin on the circuit...Leave a comment:
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Re: Power supply repair
Thanks for your reply how did u find this out as I couldn't find any calculator that had the black bands in it. The resistor reads 000.1. The driver chip is a 6853k11 ic but can't find any pinout on google for it to check it out is there a compatible replacement for this I can use.
Thanks...Leave a comment:
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ADJ disco light PFC60-12 Power supply repair
Hi trying to repair this power supply q1 was shorted on all pins it was an FHF8N60 and a resister I'm trying to check R9 resistor 5 bands no chart has the black band on it so looking for some advice on it
Thanks... -
hp pavilion 17-e050sh - DA0R76MB6D0 not charging
Hi, guys got this laptop with no charging indicator I changed over the charging port as the old one was damaged but still no joy I read a post on here to check certain components as the 19v goes to the charging identification pin and damages components and upon checking the one that is not correct is d13 one side has 3.3v and other side has 0.8v I lifted one end of the diode and its still the same ..
And advice to put me in the right direction will be much appreciated
Thanks
Garry... -
Re: Schematic for Toshiba Satellite R830-1G1
Cheers smdflea i have taken more pics of any numbers I can find
Thanks Again for your reply...Leave a comment:
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Hp-14-n009sa power button repair
Hi, Guys got this laptop that wouldn't show a display on screen but would do externally . When I checked the power button board which has the screen switch built into it I noticed resistor r2 has a crack right threw the middle of it. To replace the full board they want £15 has anyone any idea the value of this resistor and I will just replace it I tried the schematic for the laptop but it doesn't included the power button board.
Thanks... -
Re: Schematic for Toshiba Satellite R830-1G1
Anyone ��Leave a comment:
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