Re: Toshiba Qosmio X755 Charging problem
Hello Guys
Thank you @Techtiger
and Thank you @mcplslg123 , you were right the pq204 was not completely shorted but was leaky , i replaced it and the problem was solved .
You
Thank you to the guys at HEGE supporting Badcaps [ HEGE ] [ HEGE DEX Chart ]
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Toshiba Qosmio X755 Compal LA-7191P Rev1.0 schematic
Toshiba Qosmio X755 Compal LA-7191P Rev1.0 schematic...Last edited by SMDFlea; 10-16-2023, 05:47 AM.
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Toshiba Qosmio X755 Charging problem
Hello Guys,
I received Toshiba Qosmio X755 that has a charging problem and I'm stuck trying to figure out the problem.
- When battery is unplugged i works without any problem.
- When I plug in the battery after plugging in the charger, it works correctly and the battery is charging.
- When I plug in the charger after inserting the battery, it stops working. ( voltage dropped and consumed 8A, reaching the maximum capacity of my bench power supply for 5 seconds, and stop working after )
Can you help me diagnose the problem? I have attached...Last edited by SMDFlea; 10-16-2023, 05:49 AM.
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Re: Macbook Air A1466 does not turn on when pluged
Thanks for your patience :
PPBUS_G3H = 8,53 V
Q7180 is OK there is no short
source (1-2) & drain (7-8-9-10) = OL
source (1-2) & gate (3) = OL
gate (3) & drain (7-8-9-10) = OL
source (4-5) & drain (7-8-9-10) = OL
source (4-5) & gate (6) = OL
gate (6) & drain (7-8-9-10) = OL
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Re: Macbook Air A1466 does not turn on when pluged
I may have expressed myself badly, that's why you're lost. Sorry!
You asked me in post #10 to short SMC_RESET_L to ground . So, i said that logic board turn on
this has the same behavior than SMC RESET with keyboard ( SHIFT+CTRL+OPTION +POWER_BUTTON ) the logic board turn too .
And yes, when using tweezers @ R5115 with the battery only the logic board turn on
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Re: Macbook Air A1466 does not turn on when pluged
No, even with battery or charger SMC_RESET_L does not go low when R5115 is shorted ! ( it should be ? )
With shorting SMC_RESET_L to ground the logic board start up
( by the way i think this is a manuel SMC RESET ? it has the same behavior as when i press SHIFT+CTL+OPTION + POWER BUTTON => it reset the SMC brief green light on the charger and logic board startup )
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Re: Macbook Air A1466 does not turn on when pluged
Thank you for the fast answer .
yes, i am using the original adapter .
I have already removed the motherboard ( there is no trackpad )
yes the logic board start up on its own when power adapter is plugged in ( and battery is disconnected ) witch is a normal behavior .
Then, i can shut down the logic board by shorting ( long ) SMC_ONOFF_L on R5115.
But i can't starting it up again by doing the same action ( shorting SMC_ONOFF_L ) .
If i connect the battery...
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Macbook Air A1466 does not turn on when pluged
Hello
I have a Macbook Air (820-3437) that have an startup issues :
- it starts right away when i plug the charger ( even with a good connected battery) .
- when shut down, if i press the power button it wont startup when the charger is plugged in but starts when i unplug the charger ( on battery ).
- i have no issue with charging battery .
- i had already checked SMC_ONOFF_L , PM_PWRBTN_L are OK
Can you please help me to figure out the problem ?
Thank you
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Macbook A1706 camera connector pinout ?
Hello,
I have got a macbook A1706 ( 820-00239 ) to repair .
I found that the camera cable connector J0802 ( from the lcd pcb ) was water damaged.
I removed the connector from the pcb side, but the side of flex cable was entirely damaged. i have to cut it and rewire all .
I have found this picture of scratched camera flex cable but i didn't figure out the pinout.
Can you help me please ....
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Re: 3.3v / 5v TPS51225B vs TPS51225C
You comforted me, thank you very much for the answer...
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3.3v / 5v TPS51225B vs TPS51225C
Hello,
I repaired a dead Lenovo L380 by replacing 3.3v/5V TPS51225[COLOR="Red"]B[/COLOR] chip with TPS51225[COLOR="Red"]C[/COLOR] that i recovered from a donor board .
It works but I'm not expert enough to tell if this is good or not ?
Can any body tell me what is the difference between the two and if the replacement is good ?
this is a link for the datasheet
[url]https://cdn.badcaps-static.com/pdfs/d6e896023792029cdbe39146e574617f.pdf[/url]
thank youHello,
I repaired a dead Lenovo L380 by
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HP DA0R62MB6E1 SLJ8E Bios need
Hi folks
i need the bios/ec dump of DA0R62MB6E1
chipset SLJ8E
thank you by advance
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HP 15 ( R62 ) dont turn on : POST CODE F9
Hello ,
I have an HP15 R62 DA0R62MB6E1 REV E motherboard that won't turn on .
I flashed bios , change RAM , CPU .. same problem .
The debug card show that it is posting and stops on code F9 .
Could someone help me to figure out the solution?
Thank you by advance .
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