Dell Inspiron M5030 Not Powering On - Voltage Readings for PL4301, PU4301, PU4502, PU4601

Question

Hello.

I am writing a new topic because the ones that are already on the electrode did not wake up the album.
The intel board
No reaction on the ON button, nothing shines nothing works.

PL4301 gland is approx

PU4301:
S - 19.6 V
S - 19.6 V
S - 19.6 V
G - 3.2 V
D - 19.6V
D - 19.6V
D - 19.6V
D - 19.6V

PU4502:
S - 19.6 V
S - 19.6 V
S - 19.6 V
G - 1.7 V
D - 19.6 V
D - 19.6 V
D - 19.6 V
D - 19.6 V

PU4601 - it does not get power.

marci4 · Answer

Enter the motherboard symbol. Do you have ALW5 and ALW3 voltages after connecting the power supply?

molanos · Answer

Plate: CN-091400 DELL INSPIRON N5030   ALW - ??? I can not locate on PCB. Please brighter ... Is it about U4201 and U4202?

boro1234567 · Answer

With PL4602, PL4601 voltage supply.

molanos · Answer

I do not have PL4602 and PL4601 on the record .... it's about converters? I have a PU4601 which gives 19.6 V and PU4602 which does not indicate anything on the meter ...

boro1234567 · Answer

These are the main converter coils. Upload disc images in higher resolution on both sides.

molanos · Answer

I already found it. PL4602 and PL4601 - No power supply

boro1234567 · Answer

Sorry but the quality of the photos does not allow you to identify components. Remove the coil images of the coils around the inverter coils.

molanos · Answer

< br /> I already found it. PL4602 and PL4601 - No power supply

boro1234567 · Answer

Is the battery charging?

molanos · Answer

No Loading ....

boro1234567 · Answer

We're flying from the beginning. How did the fault occur? Are you 100% reliable in the power supply? Does the battery behave the same way?

molanos · Answer

After finishing work and switching off, the laptop has not started again. On the battery exactly the same symptoms. The battery currently has 11.72v power supply: Mass 19,6v ID pin middle 0V I also checked on the HP power supply without changes ...

marci4 · Answer

Measure the resistance between each coil and ground with an ohmmeter. Search for short circuits. Apply the voltage from leg 16 to PU4603. Do you use the diagram when looking for a problem?

boro1234567 · Answer

The HP power supply is not suitable for this board, it can cause damage. CMOS reset made? Connect the board with the battery and give the measurement results from PU4503, pin 16,17,8, PU4603, pin 8, bones, bios.

lisek · Answer

After all, on this photo. from Oct 19, 2014 14:57 you have the left side (in the white border) like ox on the plot written that is DJ2 MV MB platform - North GM45 - KBC NPCE781BA0DX close   In the annex you have SM for this platform.

molanos · Answer

Reset CMOS - done Bios pin 8 on the bat has 0.09 power supply + bat has 3.31 PU4503 on the bat has D-11.74v D-11.74v D-11.74v D-11.74v S-11.74v S-11.74v S-11.74v G-0v PU4603 can not locate on PCB where is it? pin 16,17,8 I do not understand.

boro1234567 · Answer

I have clearly written out the outputs with such numbers of the PU4603 inverter controller. The layout looks like on a photo.

lisek · Answer

After all, a similar subject was practiced on Link_ forum from 2013.

molanos · Answer

Przistarz wrote clearly in the first post I am writing a new topic because those that are already on the electrode did not wake up the disc. I have read this topic too.

boro1234567 · Answer

What about measurements?

molanos · Answer

I'm already looking for PU4603 ... I was not there for a moment ... I have found on pcb ... PU4603 On the power supply: pin 17 - 4.97v pin 16 - 19.58v pin 8 - 3.31v On Battery: pin 17 - 4.97v pin 16 - 12,122v pin 8 - 3.44v I will add that this element heats up very well after a few seconds. He's in his fingers! I guess it should not be so ...

lisek · Answer

It's about the tension on this system
pin.8 LDO or nap.3.3V (it powers min KBC)
pin.16 and the rest as was written in previous posts

If you do not have voltage on pin.8, then it's fault> charger or NCB (not counting "compact" ceramic capacitors, R in TPS51xxx environment
Then measure to mass: VREG5 (17pin) and VREG3 (8pin)

boro1234567 · Answer

You need to determine the cause of the system's heating. Resistance from pin 8 of the controller and coils PL4602 and PL4601. Do you have a service power supply?

molanos · Answer

I do not have a service power supply yet, but I was thinking about buying it yesterday. Can you recommend something ??? Made in China enough or something else some model?

I drove to the furnace and I probably damaged the PU4603. As I checked again the voltage on it, my paws twitched and I closed the terminal pin 17 with pin 16

And now I have on pin 17 - 0.21v the rest of the tide is unchanged.
I'm looking for lumber or I do not have somewhere 51125 And because he's sitting there.

I found on another record as 51125 but without "A"
Can I boldly solder it?
Or does the letter "A" have any meaning?

The system replaced by an efficient 51125.

Pin 17- 4.93v
Pin 16 - 19.57v
Pin 8 - 3,27v

The system does not heat up, but the board does not start ...

lisek · Answer

You can exchange.
Look at
Link_ TPS51125A
Link_ TPS51125
(' :!:

')
The difference (in the value of electrolytic capacitors on the pin ...) is described on the 1st page. datasheet TPS51125A
As you have on pins ... ok.

Quote:
ENTRIP1-1.44V
ENTRIP2-1.55V

This should appear nap. output for controlling and opening keys (both channels should work)

boro1234567 · Answer

I asked for some measurements, I do not see the results.

molanos · Answer

Meter set to 200K oops PL4601 - 10.5 PL4602 - 01.5 Meter set to 2M PIN8 - 591

boro1234567 · Answer

Do not give these results to you? Keys checked?

molanos · Answer

ENTRIP1-0V ENTRIP2-0V There are no tensions .... I have now checked the short circuit to the mass of the coils. I have a short on: PL4901 PL4702 PL4701 So damage to the inverter or powered system like that? I am asking for a hint because I already have a confusion in my head and I'm not too good at repairing power failures ... that's why I am asking for help in order to improve my skills ...

Dell Inspiron M5030 Not Powering On - Voltage Readings for PL4301, PU4301, PU4502, PU4601

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