Forwarded from AFS SOLUTIONS
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LAPTOP CARE CENTER
MUMBAI
Required experience chip level engineer for Laptop motherboard repair...
Salary demand as per his work skill ....
Contact 9821180846
LAPTOP CARE CENTER
MUMBAI
Required experience chip level engineer for Laptop motherboard repair...
Salary demand as per his work skill ....
Contact 9821180846
👍1
Forwarded from AFS SOLUTIONS
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👍1
Forwarded from AFS CHANNEL (SCHEMA GURU)
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👍1
Forwarded from TECHGURU CASE STUDY AFS😎
Case Study-42
Dell Vostro 3470
17530-1
i3-8th Gen Desktop
Problem- No Display
Orange Light Blinking
Check all Coil Impadance is Ok
Check all Voltages Supply
On PL5001 Ram voltage is Not Present
Check PU5001 Ram ic
RT8231A
VDD 5v
Vtt 0.6v also come
S3 and S5 also Ok
But PowerGood Pin 10 and TON pin 9 is Not Coming
Then check R4802 PWR_VDDQ_PG One Side 3v Another side 0v Its 47k also on PR5009 PWR_VDDQ_VIN
One Side 12v another Side 0v its showing 620k same as Schematic
Replace Both Resistors R4802 replace 47k and PR5009 Replace 200k
Now PR5009 PWR_VDDQ_VIN is12v Another side PWR_VDDQ_TON is 1v
And R4802 PWR_VDDQ_PG Both Side 3v is coming and White light glow and Display also Come
Thank you AFS Solution Banglore And Md. Rafi Sir
Dell Vostro 3470
17530-1
i3-8th Gen Desktop
Problem- No Display
Orange Light Blinking
Check all Coil Impadance is Ok
Check all Voltages Supply
On PL5001 Ram voltage is Not Present
Check PU5001 Ram ic
RT8231A
VDD 5v
Vtt 0.6v also come
S3 and S5 also Ok
But PowerGood Pin 10 and TON pin 9 is Not Coming
Then check R4802 PWR_VDDQ_PG One Side 3v Another side 0v Its 47k also on PR5009 PWR_VDDQ_VIN
One Side 12v another Side 0v its showing 620k same as Schematic
Replace Both Resistors R4802 replace 47k and PR5009 Replace 200k
Now PR5009 PWR_VDDQ_VIN is12v Another side PWR_VDDQ_TON is 1v
And R4802 PWR_VDDQ_PG Both Side 3v is coming and White light glow and Display also Come
Thank you AFS Solution Banglore And Md. Rafi Sir
👍1
Forwarded from Ifraj
Case Study-43
Lenovo IdeaPad 320
NM-B242
Problem Dead
Check all Coil impadance is Ok
No Corrosion On Board
Dc Reading Is 0.017- 0.023
When i Trigger the Board No Change
When i Disconnect CMOS Battery and Connect The DC Board was On And Giving me Display
But When i power off the Board and Try to Start Board Again Dead
Then I Check RTC Section replace Cmos battery,
VCCRTC ok
SRTC_RST# 3v
RTC_RST# 3v
RTC_X1 and RTC_X2 also Showing Good Value
Then i Replace YC1 32.768khz crystal But Same😔
Then I Resold io Controller same then I replace Bios Same
Then Finally i reprogram ite8586 io Controller and Reprogram Main Bios Same Time
Now I check now DC Reading is 0.005
Trigger the Laptop restart 3 times Gives Display
Now i turn off manually and trigger the laptop its Working Normally after testing 8 hours its Working Fine proper shutting down and on also
Thank you AFS Solution and Md.Rafi Sir
Sabr ( patience )
Is Most important thing in Chip Level Repairing
Thank for Teaching US
Lenovo IdeaPad 320
NM-B242
Problem Dead
Check all Coil impadance is Ok
No Corrosion On Board
Dc Reading Is 0.017- 0.023
When i Trigger the Board No Change
When i Disconnect CMOS Battery and Connect The DC Board was On And Giving me Display
But When i power off the Board and Try to Start Board Again Dead
Then I Check RTC Section replace Cmos battery,
VCCRTC ok
SRTC_RST# 3v
RTC_RST# 3v
RTC_X1 and RTC_X2 also Showing Good Value
Then i Replace YC1 32.768khz crystal But Same😔
Then I Resold io Controller same then I replace Bios Same
Then Finally i reprogram ite8586 io Controller and Reprogram Main Bios Same Time
Now I check now DC Reading is 0.005
Trigger the Laptop restart 3 times Gives Display
Now i turn off manually and trigger the laptop its Working Normally after testing 8 hours its Working Fine proper shutting down and on also
Thank you AFS Solution and Md.Rafi Sir
Sabr ( patience )
Is Most important thing in Chip Level Repairing
Thank for Teaching US
👍3