Good. What is the voltage to ground of ALL_SYS_PWRGD ?
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What is the voltage to ground of SMC_BC_ACOK ?Comment
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What is the voltage to ground of SMC_BC_ACOK_VCC @ U6901 (pin 4) ?Comment
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What is the voltage of SMC_RESET_L ? Do you have a green light on the magsafe connector? What is the voltage of PPBUS_G3H ?Comment
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Hi mon2
YES. I do have the green light on the charger.
PPBUS_G3H : 12.40 V.
I shall post SMC_RESET_L voltages shortly as there has been a power outage.
RegardsComment
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As per post #60. Should be ~12v6.PPBUS_G3H : 12.40 V.
Flux and remove F7040 off the logic board. Do not lose it. Power up without F7040 so there is no consumer side loading on this power rail.
What is the voltage to ground on the ISL (producer) side of this PPBUS_G3H power rail?
reference:
[SOLVED]820-2936 ppbus_g3h 16v | Rossmanngroup ForumsComment
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Hi guys,
I've been trying to restore this Yamaha RM1X groove-box I bought, and the first thing on my agenda was to replace a bad capacitor that was making it so that the screen was super dim. As I'm a complete novice I went and accidentally pulled off one of the trace pads for the SMD capacitor as I was removing it, pulling up some of the green PCB with it. I've been trying to repair it by gluing down copper tape from where it began to pull off and solder the capacitor on after...atm I've just been attempting to do the same kind of thing on rubbish PCBs I got at a recycling place,... -
Acer 515-54G
DA0ZAWMB8G0
Board have badly burned Main power and second mosfet After repair ACDET is pulled to GND when apply power
i dont uderstand this. Charger ic BQ24780S
ACDET 6pin have voltage devider set to R1 110Kohm and R2 20Kohm. pin ACDET have 20K to GND. But when apply power R1 have 19V on one side and 2.3ohm on other side.
What is pulling my ACDET down when i apply power even without BQ ic... -
Hello everyone,
I'm currently working on a Hantek 6022BE where the USB port and vias have been ripped off the PCB. Here are the steps I've taken so far:- Power Supply: I've tapped the power supply next to the via from the tracer.
- GND: I've successfully connected the GND as well.
- Data Lines: I soldered the D+ and D- lines directly to the USB controller (CY7C68013A-100AXC) at pins 17 and 18.
Now I'm wondering if I need pull-up resistors. According to my observation, the tracer goes directly from D+ and D- to the USB Port. Could that be right?
Despite these steps,... -
Hi,
I have got an 820-000165-A motherboard which has got a strange problem. I have 14.32 V at R7005. But when i check pin2 of D7005, it says 0.9V. The diode is OK. Tried changing U7090 too. Any clues? -
Hello everybody.
First comment that I am a computer technician, not an electronics specialist, but I do like it.
I tell you, by accident I have pulled the resistor R8312 and the GND pad
of a motherboard 820-3476-A, the line is called DP_INT_ML_N <0> and it goes to pin 15 of the J8300 connector.
The screen works and I don't know if it can be without that resistance. I guess not, but ... is it possible?
Thank you.
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