Main » Forums home » Flash storage, SSD

All times are UTC - 5 hours [ DST ]



Post new topic Reply to topic  Page 1 of 1
  [ 9 posts ] 
  Print view Previous topic | Next topic 
Author Message
Adisa
 Post subject: Lexar JumpDrive M10 heating up
PostPosted: August 18th, 2020, 6:37 
Offline

Joined: February 15th, 2017, 15:42
Posts: 74
Location: Sweden
Hi,
Got this USB-stick with broken contact.
I desoldered the old one and just connected a new through wires.
Now the problem is that the stick is heating up quite qick.

Anyone with experience of this and can help me troubleshoot?
I circled the components thats getting hot.

Many thanks!

PS. I soldered the wires to a USB 2.0 contact instead of 3.0.


Attachments:
20200818_122755.jpg
20200818_122755.jpg [ 1.68 MiB | Viewed 8422 times ]
20200818_122731.jpg
20200818_122731.jpg [ 1.72 MiB | Viewed 8422 times ]
Top
 Profile  
 
HaQue
 Post subject: Re: Lexar JumpDrive M10 heating up
PostPosted: August 18th, 2020, 7:11 
Offline
User avatar

Joined: December 4th, 2012, 1:35
Posts: 3844
Location: Adelaide, Australia
you don't say what pinout your wires are connected by (+ GND D- D+)

The PCB could have bent and shorted something if it is a multi layer board, or a component could have failed when the damage occurred.
Top
 Profile  
 
Adisa
 Post subject: Re: Lexar JumpDrive M10 heating up
PostPosted: August 18th, 2020, 7:25 
Offline

Joined: February 15th, 2017, 15:42
Posts: 74
Location: Sweden
HaQue wrote:
you don't say what pinout your wires are connected by (+ GND D- D+)


You are right, sorry. From the top, GND (black), D+, D-, +5VCC.

HaQue wrote:
The PCB could have bent and shorted something if it is a multi layer board, or a component could have failed when the damage occurred.

The PCB was bent.. guess I need to find a new pcb.
Top
 Profile  
 
HaQue
 Post subject: Re: Lexar JumpDrive M10 heating up
PostPosted: August 18th, 2020, 7:29 
Offline
User avatar

Joined: December 4th, 2012, 1:35
Posts: 3844
Location: Adelaide, Australia
is the LED at LED1 burnt?
Top
 Profile  
 
Adisa
 Post subject: Re: Lexar JumpDrive M10 heating up
PostPosted: August 18th, 2020, 7:35 
Offline

Joined: February 15th, 2017, 15:42
Posts: 74
Location: Sweden
HaQue wrote:
is the LED at LED1 burnt?

looks like it, yes
Top
 Profile  
 
fzabkar
 Post subject: Re: Lexar JumpDrive M10 heating up
PostPosted: August 18th, 2020, 15:22 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 15538
Location: Australia
"3020" is probably the Vcore regulator. Check for a short to ground at L2.

EML3020, ESMT/EMP, step down DC/DC converter, Vin = 2.5V - 5.5V, 1A, TDFN-6, marking 3020:
http://www.micro-bridge.com/data/EMP/EML3020.pdf

Datasheets for HDD memory ICs including EEPROM, EPROM, flash:
http://www.users.on.net/~fzabkar/Datasheets/DATAURLS.HTM

"8733" is probably a 3.3V linear LDO regulator. Check its Vout pin for a short to ground.

_________________
A backup a day keeps DR away.
Top
 Profile  
 
fzabkar
 Post subject: Re: Lexar JumpDrive M10 heating up
PostPosted: August 18th, 2020, 21:12 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 15538
Location: Australia
http://www.innostor.com/file/Innostor_IS903_Specification.pdf

_________________
A backup a day keeps DR away.
Top
 Profile  
 
underdeath21
 Post subject: Re: Lexar JumpDrive M10 heating up
PostPosted: August 19th, 2020, 14:05 
Offline

Joined: November 12th, 2018, 13:34
Posts: 19
Location: estonia
Adisa wrote:
Hi,
Got this USB-stick with broken contact.
I desoldered the old one and just connected a new through wires.
Now the problem is that the stick is heating up quite qick.

Anyone with experience of this and can help me troubleshoot?
I circled the components thats getting hot.

Many thanks!

PS. I soldered the wires to a USB 2.0 contact instead of 3.0.


does it show up after you soldered new one?maybe just cool it with fan til you get data recovered?
Top
 Profile  
 
fzabkar
 Post subject: Re: Lexar JumpDrive M10 heating up
PostPosted: August 21st, 2020, 17:47 
Offline
User avatar

Joined: September 8th, 2009, 18:21
Posts: 15538
Location: Australia
ESMT/EMP, EMP8733, Fast Ultra High-PSRR, Low-Noise 300mA CMOS LDO, marking 8733, SOT-23:
http://www.micro-bridge.com/data/EMP/EMP8733.pdf

_________________
A backup a day keeps DR away.
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 9 posts ] 

Main » Forums home » Flash storage, SSD

All times are UTC - 5 hours [ DST ]

Who is online

Users browsing this forum: No registered users and 62 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Switch to mobile style
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group