I like to get one on mouser/digikey along with a order i plan to place
i have 2 breadboards one from ebay w/ horrendous contact resistance (to the point on NC)
and another from ali-express that feels like i am going to break my micro controller putting it into the thing
any suggestions? (note that i am not spending $50 on a 3m board)
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-
04-29-2024, 08:50 AM
-
Please help sir, this board does not turn on because VSYS_OUT is 9.2v, I compared it with a normal board VSYS_OUT is 10.2v, I have replaced the PQ101 and PQ102 mosfet and BQ 25700 which is known to be good, but the results are still the same, thank you
VSYS_OUT 9.2v
Meter in resistance mode auto range 6M ohm ok
NORMAL BOARD VSYS_OUT 10.2V
PQ101
PIN 2 20V
PIN 7 0.004V
PIN 6 6V
PIN 5678 0V
PQ102
PIN 567 0V
PIN 9 0.004V
PIN 234 9.2V (VSYS_OUT)
PU101 BQ25700ARSNR
1 VBUS 20V...Today, 10:48 AM -
Hi all,
I was looking to upgrade my main multimeter (Asita MD591) with something that has more features. I'll use it mostly for board diagnostic and diy repairs. I've been eyeing out many of those multi-function ones from Aliexpress but can't seem to make my mind up. Here are the features that I'm looking after:
- Autorange
- DC volts up to 30V
- Accurate Resistance
- Diode test (Beep mode)
- Frequency up to 200MHz
- Capacitanze up to 5000uF
- as cheap as possible
Other functions are not needed but those which are needed...Today, 09:54 AM -
"I heard that a blue LED has different voltage values than green and red ones. Green and red ones are easily replaceable, but how do I do that with the blue one?"
"I have to use the blue one, because green means fully charged and blue means charging."
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"20240415_172809.jpg","data-attachmentid":3253246}[/ATTACH]...04-15-2024, 09:59 AM -
i want to program a W25Q40CL chip but looks like it won't get erased neither programmed
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"image.png","data-attachmentid":3265889}[/ATTACH]
Any help ?i want to program a W25Q40CL chip but looks like it won't get erased neither programmed
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"image.png","data-attachmentid":3265889}[/ATTACH]
Any help ?...Today, 10:40 AM -
Shown in picture, trying to replace a MOSFET and looks like I knocked this off, in guessing it's the same as one next to it. Has 1.8 Mohms. Any way to bypass it? It's on the hot side
The component circled is the one there, the arrow is I think another of same component?Today, 11:47 AM -
HI NE[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"DSD.png","data-attachmentid":3264908}[/ATTACH]...05-04-2024, 10:08 AM
-
Got something new. Recently I got trouble with receiving emails and syncing OneNote. Nothing else. I still can stream 24x7, VOIP, have full speed internet, but in the world cannot receive any emails nor sync OneNote. Take the computer somewhere else to a different internet location and no problems at all.
Points to the router, right? NOPE! 
Hooked up my computer directly to the modem (which is in bridge mode) and have the same problems! 
Put all the network shit back together, start my VPN provider app, choose the closed VPN server to me and all the problems are gone! 
Is...
Yesterday, 06:16 AM -
hi, friends can heko unlock this [B]Vostro 13 5310[/B]
ST:4GV8MG3
have password and computrace active
regardshi, friends can heko unlock this [B]Vostro 13 5310[/B]
ST:4GV8MG3
have password and computrace active
regardshi, friends can heko unlock this [B]Vostro 13 5310[/B]
ST:4GV8MG3
have password and computrace active
regards...05-04-2024, 07:55 AM -
Hello,
As a foreword I'm relatively novice with component level audio gear repair. My amplifier stopped producing sound and I currently have no funds to buy a new one so I need any help to repair it. I know "no sound" is one of the most common problem but there were other symptoms so some of you seasoned repairman might able to pinpoint the stuff I have to check. I did download the service manual from manualslib the "no sound checklist" is a bit intimidating.
So i bought it working. First symptom: speaker protection relays on the audio board were clicking...Today, 10:16 AM
-
Please help sir, this board does not turn on because VSYS_OUT is 9.2v, I compared it with a normal board VSYS_OUT is 10.2v, I have replaced the PQ101 and PQ102 mosfet and BQ 25700 which is known to be good, but the results are still the same, thank you
VSYS_OUT 9.2v
Meter in resistance mode auto range 6M ohm ok
NORMAL BOARD VSYS_OUT 10.2V
PQ101
PIN 2 20V
PIN 7 0.004V
PIN 6 6V
PIN 5678 0V
PQ102
PIN 567 0V
PIN 9 0.004V
PIN 234 9.2V (VSYS_OUT)
PU101 BQ25700ARSNR
1 VBUS 20V...Today, 10:48 AM -
i want to program a W25Q40CL chip but looks like it won't get erased neither programmed
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"image.png","data-attachmentid":3265889}[/ATTACH]
Any help ?i want to program a W25Q40CL chip but looks like it won't get erased neither programmed
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"image.png","data-attachmentid":3265889}[/ATTACH]
Any help ?...Today, 10:40 AM -
Hi all,
I was looking to upgrade my main multimeter (Asita MD591) with something that has more features. I'll use it mostly for board diagnostic and diy repairs. I've been eyeing out many of those multi-function ones from Aliexpress but can't seem to make my mind up. Here are the features that I'm looking after:
- Autorange
- DC volts up to 30V
- Accurate Resistance
- Diode test (Beep mode)
- Frequency up to 200MHz
- Capacitanze up to 5000uF
- as cheap as possible
Other functions are not needed but those which are needed...Today, 09:54 AM -
Shown in picture, trying to replace a MOSFET and looks like I knocked this off, in guessing it's the same as one next to it. Has 1.8 Mohms. Any way to bypass it? It's on the hot side
The component circled is the one there, the arrow is I think another of same component?Today, 11:47 AM -
bios for laptop model: Aspire one 1-132
snid: 62504891276
probleme : error: turn on but not boot even to the logo
Thank You...Today, 02:26 AM -
Hello,
As a foreword I'm relatively novice with component level audio gear repair. My amplifier stopped producing sound and I currently have no funds to buy a new one so I need any help to repair it. I know "no sound" is one of the most common problem but there were other symptoms so some of you seasoned repairman might able to pinpoint the stuff I have to check. I did download the service manual from manualslib the "no sound checklist" is a bit intimidating.
So i bought it working. First symptom: speaker protection relays on the audio board were clicking...Today, 10:16 AM -
The laptop won't start. When plug power supply, on 19V in gives me 0,14A, without turning on the laptop.
I check it with thermal camera, and there is one resistor that is very hot, I change the resistor with new on but the result is the same.
In the attachment there is schematic of the resistor area, and schematic of the laptop.
I can't understand, why this resistor is getting so hot....Yesterday, 01:24 AM -
polaroid TQLHD24PR004 no power
hi, my tv no longer starts like dead, no standby led
motherboard : MS36639-ZC01-01
panel : V236BJ1-P01
flash spi: GD25Q64
need usb firmware or to reprogramYesterday, 08:40 AM -
MSI MEG Godlike x570 motherboard - need schematic and boardview. I have accidentally plugged in the wrong usb plug into a usb3.0 connector on front panel of PC resulting in temporarily shorting out the port. (I know it was really stupid, It was dark in my room and was rushing). I shutdown the computer and now after an immediate restart I get an overcurrent error on boot up saying my PC will shut down in 15 seconds. If I let the computer sit for about 35 minutes, I then can boot the PC without getting error. What I am hoping to find out is what parts were affected by my stupidity. Anyone have any...Today, 09:41 AM
-
I created a supervisor password for my laptop a while back and I forgot it. It can't be reset by resetting CMOS. Can I extract it from a BIOS dump or through another method without a bios/eeprom programmer?Yesterday, 09:10 PM