dead with no leds when inserting power. voltage of battery connectors charger is only one pin with 4.2 v
no voltage on bios
no voltage on power switch
thnaks
no voltage on bios
no voltage on power switch
thnaks
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Re: Satellite L505D MB 6050A2302901-MB-A02
first you need the schematic.Just cook it! It's already broken. -
Re: Satellite L505D MB 6050A2302901-MB-A02
i already have the schematic, but how to determine if BQ24721C is bad??Comment
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Re: Satellite L505D MB 6050A2302901-MB-A02
attach it here!
do you think that we have some JEDI MIND tricks that we can see that schematic and know whats wrong?
May the force be with YOUJust cook it! It's already broken.Comment
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Re: Satellite L505D MB 6050A2302901-MB-A02
here is the schematicComment
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Re: Satellite L505D MB 6050A2302901-MB-A02
post the values of the BQ24721C then we can see whats going onJust cook it! It's already broken.Comment
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Re: Satellite L505D MB 6050A2302901-MB-A02
already changed it with same problemComment
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Re: Satellite L505D MB 6050A2302901-MB-A02
then why you ask us if its bad and you already change it.
again.
what values you got on that BQJust cook it! It's already broken.Comment
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Re: Satellite L505D MB 6050A2302901-MB-A02
If you don't have any voltages on BIOS, first check 3.3V & 5V regulator (U6100)...
In order to help you need to post voltages of all pins...Comment
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Re: Satellite L505D MB 6050A2302901-MB-A02
sorry for the delay but the customer insist to take it as it is, thanks very muchComment
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Hello friends,
Looking for some guidance here. The RAM voltage circuit on this motherboard keeps burning out PU301 which is a RT8231AGQW. Copy of the board with the burnt chip attached with some voltage measurements and copy of the schematics also included.
I think I've checked almost every component in the circuit, but when I change the RT8231, the laptop starts I have 1.2V on the inductor for about 10 seconds and then the RT8231 goes south and no more voltage on the inductor. All other voltages on the laptop are good, this is the only one conking out for a reason I... -
i have Gigabyte Z490 Gaming X Motherboard .it has a power on no display fault .. no vcore voltage and debug led stuck CPU LED .
VCCIO voltage ok
VCCSA Voltage OK
VCCPLL Voltage OK
Ram Voltage ok
RamVTT OK
VPP 2.5 OK
But No Core Voltage
and i want to this vrm ic datasheet or pinout (ISL69269)
anyone have this ic pinout voltages?...06-25-2025, 07:19 AM -
Hi Everyone, I am new to this forum. I have a Panasonic LED TV which doesnt turn on and is blinking 4 times repeatedly when I turn on the switch. The TV does not respond to the remote control so I had to turn on using the physical switch on the side of the TV. When I turn on the switch the 4 x blinking starts and repeat itself until I turn off the TV. There is a black screen. I turned off the light in the room to check the panel and I think there is no backlight as far as I can tell.
I have been inspecting and testing the capacitors and diodes in the power supply board to try to... -
I found two capacitors on the board and one of the leads on one capacitor had bad soldering joint and the other joint connections not much better and there were several soldering joints that way to much flux around the joint redid several of them
The capacitors were a non brand that I did not recognize they got replaced and now it does not oscillating between relay but what concerns me a little bit is when the voltage is a little bit low the output voltage is around 130 volts and then drops down to 115 volts this happens around 105 to 108 volts if remember correctly
Now... -
3+1 Voltage Regulator for IMVP-7/VR12 CPUs
Compliant with IMVP-7/VR12, the ISL95831 provides a complete solution for microprocessor and graphic processor
core power supply. It provides two Voltage Regulators (VRs) with three integrated gate drivers. The first VR can be
configured as 3-, 2- or 1-phase VR while the second output is 1- phase VR, providing maximum flexibility. The two VRs share the
serial control bus to communicate with the CPU and achieve lower cost and smaller board area compared with the two chip approach.
Based on Intersil's Robust Ripple Regulator...11-05-2024, 03:24 PM
Comment