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IDProjectCategoryView StatusLast Update
0001316K18X001.00 SKB SWANHW Issuepublic2021-12-24 17:41
Reporter(ALTech) SH Son Assigned To(HW) Tom Lee Due Date
PrioritynormalSeveritys2-severeReproducibilityhave not tried
Status closedResolutionfixed 
Summary0001316: [SWAN] DVT3 Noboot issue
Description[SWAN] One of the DVT3 issues,
 - Noboot issue

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child of 0001318 closed(ALTech) SH Son [SWAN] DVT3 issue list 

Users monitoring this issue

User List (ALTech) BY Lee , (ALTech) JW Kim , (ALTech) Lonnie Kim , (ALTech) Philip , (ALTech) SH Son , (ALTech) Sophie Lee , (ALTech) Sun Choul Joung , (ALTech) SY Yoon , (HW) Sean Chiang , (HW) Tom Lee , (PM) Dennis Lu , (PM) Tiffanie Lai , (RD) Fu-chiang Young

Activities

(ALTech) SH Son

2021-08-11 13:33

developer   ~0007845

No boot issue report

(HW) Sean Chiang

2021-08-12 00:10

developer  

No booting issue_J4.pdf (1,056,726 bytes)

(HW) Sean Chiang

2021-08-12 00:10

developer   ~0007846

Hi SH,

We have reviewed the main board and heat spreader assembly with ME/HW team, and found that the J4 pin header(debug port of VS550) is very close to the bottom heat spreader. If J4 is in contact with the heat spreader, the main board may not bootup properly.

Could you please check the four defective samples in ALT to see if the "No boot" issue is related to J4 pin header?
Please find the J4 analysis report as attachment.

Thanks,
Regards,
Sean

(ALTech) Lonnie Kim

2021-08-12 19:30

developer   ~0007860

Hi, Sean

As you see board, J4 is similar with SMT materials.
That means J4 doesn't have no hole-hole pin(don't have pin protrusion pins).
In addition, that type(dip type components) have endurance about PCB bending.
Please more analysis about this issue.

Best regards

Lonnie Kim

(HW) Sean Chiang

2021-08-13 13:41

developer   ~0007864

Hi Lonnie,

So, you can confirm the "no boot" samples in ALT is not related to J4, right?
Because the J4 material we used in DVT3 is long leg type, which is different with DVT2&1(short leg type).
If you confirm the defect samples in your side is not related to J4, then please send two defect samples to Taiwan for our RD checking.


Thanks,
Regards,
Sean

(ALTech) Lonnie Kim

2021-08-19 19:57

developer   ~0007928

Hi, Sean

After analysis this issue, your correct.
J4 at DVT2 was short leg, so it might not be short with heat spread.
BTW, could you produce without J4 at mass production?

Best regards

Lonnie Kim

(HW) Sean Chiang

2021-12-24 17:41

developer   ~0009127

This issue should already been clarified. So I will close this issue. Thanks!

Issue History

Date Modified Username Field Change
2021-08-11 13:31 (ALTech) SH Son New Issue
2021-08-11 13:33 (ALTech) SH Son Issue Monitored: (ALTech) BY Lee
2021-08-11 13:33 (ALTech) SH Son Issue Monitored: (ALTech) JW Kim
2021-08-11 13:33 (ALTech) SH Son Issue Monitored: (ALTech) Lonnie Kim
2021-08-11 13:33 (ALTech) SH Son Issue Monitored: (ALTech) Philip
2021-08-11 13:33 (ALTech) SH Son Issue Monitored: (ALTech) SH Son
2021-08-11 13:33 (ALTech) SH Son Issue Monitored: (ALTech) Sophie Lee
2021-08-11 13:33 (ALTech) SH Son Issue Monitored: (ALTech) Sun Choul Joung
2021-08-11 13:33 (ALTech) SH Son Issue Monitored: (ALTech) SY Yoon
2021-08-11 13:33 (ALTech) SH Son Issue Monitored: (HW) Sean Chiang
2021-08-11 13:33 (ALTech) SH Son Issue Monitored: (HW) Tom Lee
2021-08-11 13:33 (ALTech) SH Son Issue Monitored: (PM) Dennis Lu
2021-08-11 13:33 (ALTech) SH Son Issue Monitored: (PM) Tiffanie Lai
2021-08-11 13:33 (ALTech) SH Son Issue Monitored: (RD) Fu-chiang Young
2021-08-11 13:33 (ALTech) SH Son File Added: Swan_soundbar_DVT_Noboot_ 210811.pdf
2021-08-11 13:33 (ALTech) SH Son Note Added: 0007845
2021-08-12 00:10 (HW) Sean Chiang Assigned To => (HW) Tom Lee
2021-08-12 00:10 (HW) Sean Chiang Status new => assigned
2021-08-12 00:10 (HW) Sean Chiang File Added: No booting issue_J4.pdf
2021-08-12 00:10 (HW) Sean Chiang Note Added: 0007846
2021-08-12 19:30 (ALTech) Lonnie Kim Note Added: 0007860
2021-08-13 13:41 (HW) Sean Chiang Note Added: 0007864
2021-08-13 16:40 (ALTech) SH Son Relationship added child of 0001318
2021-08-19 19:57 (ALTech) Lonnie Kim Note Added: 0007928
2021-08-25 15:57 (ALTech) SH Son Status assigned => confirmed
2021-12-24 17:41 (HW) Sean Chiang Note Added: 0009127
2021-12-24 17:41 (HW) Sean Chiang Status confirmed => closed
2021-12-24 17:41 (HW) Sean Chiang Resolution open => fixed