A1398 820-3662-a not power

[tipoti]

There were holes on the u7100. I change it. Q7135 was short I changed it. It draws 0.08 amps right now. U7100 warming up

diode mode SDA: 0.528 / SCL : 0.532
CHGR_ACIN : 4.7 volt
PDCIN_G3H_CHGR : 20 volt
PPBUS_G3H : 0,9 volt

 

[tipoti]

PP3V42_G3H : 3.4 volt

 

[tipoti]

PPBUS_G3H diode mode : 0.463

R7151/52 no problem
R7121/22 no problem

pin 1: 18.16 Volt
pin 2: 18.21 Volt
pin 9: 4 Volt
pin 12: 3.4 Volt
pin 13: 3.3 Volt
pin 14: 3.2 Volt
pin 15: 0.074 Volt
pin 17: 2.5 Volt
pin 19: 5 Volt
pin 20: 4.6 Volt
pin 27: 19.98 Volt

 

[tipoti]

Pin 9 : 4 volt sure

I uninstalled the Q7180 but still the U7100 gets hot. Then I put a new one, nothing changed.

17/18 : 3.7 ohm
27/28 : 21.5 ohm

pin 27: 19.98 Volt"

PPBUS_G3H L7130 : 2.3 volt

 

[tipoti]

I removed f7140/41. I disassembled the q7130/35. I changed the u7000 4 times. But again the u7000 is getting hot. It draws 0.08 amps. Currently there is no f7140/41 q7130/35 on the motherboard but it keeps getting hot

 

[2informaticos]

Wait, do you really talk about U7000, or U7100?

 

[tipoti]

Sorry U7100

 

[2informaticos]

"pim 1: Voltaj yok"
???

Check pin 3 too; sorry that I forgot to mention above.

 

[tipoti]

pin1: No voltage
pin3 : 4.7 Volt

 

[tipoti]

I removed all the ones with x to the top. But u7110 keeps getting hot

 

[2informaticos]

Removing good components will not help you.
Put all back; just be sure to be good.
Check any trace and solder.
Then post again U7100 voltages, above mentioned.
Change all capacitors surrounding U7100, if not sure about them.
Also change U7100, if still overheats.

Just keep out F7140/1.

 

[tipoti]

U7100 getting hot with R7101 in place. It draws 0.08 amps. R7101 draws 0.01 amps without

 

[2informaticos]

Did you resolder all?

Check/change all components related with pins 21-28.