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| Lexar JumpDrive M10 heating up http://forum.hddguru.com/viewtopic.php?f=10&t=40301 |
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| Author: | Adisa [ August 18th, 2020, 6:37 ] | |||
| Post subject: | Lexar JumpDrive M10 heating up | |||
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.
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| Author: | HaQue [ August 18th, 2020, 7:11 ] |
| Post subject: | Re: Lexar JumpDrive M10 heating up |
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. |
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| Author: | Adisa [ August 18th, 2020, 7:25 ] |
| Post subject: | Re: Lexar JumpDrive M10 heating up |
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. |
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| Author: | HaQue [ August 18th, 2020, 7:29 ] |
| Post subject: | Re: Lexar JumpDrive M10 heating up |
is the LED at LED1 burnt? |
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| Author: | Adisa [ August 18th, 2020, 7:35 ] |
| Post subject: | Re: Lexar JumpDrive M10 heating up |
HaQue wrote: is the LED at LED1 burnt? looks like it, yes |
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| Author: | fzabkar [ August 18th, 2020, 15:22 ] |
| Post subject: | Re: Lexar JumpDrive M10 heating up |
"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. |
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| Author: | fzabkar [ August 18th, 2020, 21:12 ] |
| Post subject: | Re: Lexar JumpDrive M10 heating up |
http://www.innostor.com/file/Innostor_IS903_Specification.pdf |
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| Author: | underdeath21 [ August 19th, 2020, 14:05 ] |
| Post subject: | Re: Lexar JumpDrive M10 heating up |
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? |
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| Author: | fzabkar [ August 21st, 2020, 17:47 ] |
| Post subject: | Re: Lexar JumpDrive M10 heating up |
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 |
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