pilgrimage
Member
Last Activity: 06-23-2024, 05:11 AM
Joined: 01-15-2020
Location: izmit
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Hello, I took it to someone who understands laptop repair for diagnostics. Unfortunately, he said that the chip in the picture below was burned. He said that there is a short circuit in the system, if I change the chip in the picture, maybe the problem can be solved. When he measured and examined it with a Thermal Kemara, the chip in the picture starts to heat up. He said that this chip replacement process can be done with the BGA machine. What exactly is the code of the chip seen in this picture? Where can I find this chip? Can it be solved if I change it? When I look at the schematic with Boardview,...
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Are you suggesting I change the PJP101 Power Input? When I check the charging adapter, it gives 19V. But there is no 19V at the power input on the motherboard....Leave a comment:
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19V no longer comes to any of the following integrations.
PJP101 PL101-PL102-PL103. I think the spark when measuring the PU301 may have burned the integrated that provides 19V?
thankyou for support.Leave a comment:
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I will plug the Charging Adaptor into the Motherboard's Power input. Then I will take the meter to the Volt section and measure the Adapter input of the Motherboard.
The parts I'm going to measure
PL101-PL102-PL103
Black probe to the Motherboard Chassis and the other red probe to the PL101-PL102-PL103 terminals.
Do I understand correctly, I need to see 19V at PL101-PL102-PL103.
thankyou.Leave a comment:
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I guess I didn't put it right.
Since the spark, the voltages of the following parts are unfortunately no longer available. The latest results are now as follows. [LEFT][COLOR=#111111][FONT=Arial][SIZE=13px]PUB1 24 +6V_CHG_REGN : 0V[/SIZE][/FONT][/COLOR][/LEFT]
[LEFT][COLOR=#111111][FONT=Arial][SIZE=13px]PUB1 4 ACDRV_CHRG : 0V[/SIZE][/FONT][/COLOR][/LEFT]
[LEFT][COLOR=#111111][FONT=Arial][SIZE=13px]PQB11[/SIZE][/FONT][/COLOR][/LEFT]
[LEFT][COLOR=#111111][FONT=Arial][SIZE=13px]1.0V[/SIZE][/FONT][/COLOR][/LEFT]
[LEFT][COLOR=#111111][FONT=Arial][SIZE=13px]2.0V[/SIZE][/FONT][/COLOR][/LEFT]...Leave a comment:
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In fact, if there are parts that you can tell me that there is a chance of improvement if you change these parts, I can order them too?...Leave a comment:
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When I check the adapter itself, there is 19V. The measurements I specified below in the message you first sent me no longer exist because a spark came out while measuring the PU301 pins. As of now, there is no 19V. They were all there before measuring PU301. Is there any way to get 19V back? But actually that was not the main fault. We were approaching the fault and the PU301 14Pin +3ALWP you mentioned unfortunately did not appear. I guess I'll have to get professional support from now on. But I'm curious about your opinion. Is there a chance of fixing this motherboard? If you say there is, I...Leave a comment:
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When measuring PU301, a spark came out, I guess I couldn't do this job
None of the PQB11 PQB12 19V ACDRV 25V in my previous measurements show any value.
However, with your valuable information and guidance, we seemed to be close to failure 19V is no longer coming. Is there still a chance of a fix after this? Or is it rubbish?
Leave a comment:
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I got the following results when I measured the sections you mentioned. However
PU301
I couldn't find which pin is +5ALW.
PU501 Pin 15 : +4,89V
PU301 14 Pin(+3VALWP) : No Voltage
PU301 11 Pin (ENLDO_3V_5V) . +4.5V
PU301 +5VALW Which Pin ???...Leave a comment:
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PQB19 When I measure in the order in the picture, I get the following results.
1 8
2 7
3 6
4 5
PQB19
1.19.5V
2.19.5V
3.19.5V
4.19.5V
5.25.0V
6.19.5V
7.19.5V
8.19.5V
...Leave a comment:
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When I measure the motherboard as in the picture I attached in the attachment, PQB18 4 Pin comes out 25.0V as you said.
How should I proceed from now on? Are the other measurements normal?
thankyou....Leave a comment:
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I have attached a picture of the schematic in the annex, in which I tried to show the 3VALW and 1.05ALW parts you specified. Do I need to measure these parts in the short circuit position with the measuring instrument. I also need to measure the following parts specified in the diagram. Can you help with this issue?
RH101
RH99
JPH1
RH94
RH102
RH103
RH105...Leave a comment:
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Thank you very much for your detailed sharing. I tried to do what you said to the extent of my technical knowledge.
The results are as follows;
Results only when the Power Charger adapter is plugged in ;
PUB1 24 +6V_CHG_REGN : 6.0V
PUB1 4 ACDRV_CHRG : 25.0V
I have attached the pictures of PQB11 PQB12 and PQB18 and PQB19 when I turned the back side of the motherboard. When you look at the picture as you specify, I took the U-shaped base and made the measurements as you wrote below.
1 8
2 7
3...Leave a comment:
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Hello, which mosfets belong to Dc_in(PJP101)?
When I looked at the schematic, I saw the following.
PQB1
PQB2
PQB11
PQB12
PQB13
PQB18
PQB19
Is it true?
I don't want to tire you out, but this is the first time I've ever tried to read a schematic. I think I really need Semavi (Kübra) along with my laptop. By the way, the series is a Turkish series. I also live in Turkey.
Thank you for your support and time
Leave a comment:
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Acer Predator Helios 300 Model: N20C3 PH315-53-71ZR No Power
Hello, my laptop was working smoothly, I was getting images via hdmi via the monitor. I ordered a new lcd panel because the LCD screen was broken. After replacing the LCD screen, when I wanted to turn on my laptop, my laptop was dead. Currently, there is no power, no light, no reaction on the laptop, do you think that in this case, could the GPU or CPU of my laptop be burnt? I read in some forums that this kind of error can occur if the LCD screen is replaced while the battery is installed. Unfortunately, when I replaced the LCD panel, my laptop was completely turned off but the battery was installed.... -
Hello, Acer Predator GH51M LA-K862P NO POWER I am experiencing a different version of the problem in the post. My laptop was working smoothly, I was receiving images via hdmi via monitor.I ordered a new lcd panel because the LCD screen was broken.When I wanted to turn on my laptop after replacing the LCD screen, my laptop was dead. Currently, there is no power, no light, no reaction on the laptop, do you think that in this case, could the GPU or CPU of my laptop be burnt? I read in some forums that this kind of error can occur if the LCD screen is replaced while the battery is plugged in. When...
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