EEVblog Electronics Community Forum
A Free & Open Forum For Electronics Enthusiasts & Professionals
Welcome,
Guest
. Please
login
or
register
.
Did you miss your
activation email
?
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
This topic
This board
Entire forum
Google
Bing
Home
Help
Search
About us
Links
Login
Register
EEVblog Electronics Community Forum
»
General
»
General Technical Chat
»
Is this chip balled ?
« previous
next »
Print
Search
Pages: [
1
]
Go Down
Author
Topic: Is this chip balled ? (Read 660 times)
0 Members and 1 Guest are viewing this topic.
chinoy
Regular Contributor
Posts: 95
Country:
Is this chip balled ?
«
on:
August 12, 2020, 07:57:12 pm »
On my way to doing my first chip level repair.
The Chip in question is the Max98512B.
Picture attached.
My question is this new chip balled or do I need to ball it.
I do not have a stencil for it.
This is an insanely small chip 36 contacts little bigger than a pin head lol.
Any tips to a first timer without a stencil ?.
Logged
Good thoughts, Good deeds, Good words.
All the religion you need in life.
flolic
Frequent Contributor
Posts: 387
Country:
Re: Is this chip balled ?
«
Reply #1 on:
August 12, 2020, 08:37:01 pm »
That chip is balled.
I reball those under the microscope by hand, using thin, sharp needle to transfer balls.
Logged
chinoy
Regular Contributor
Posts: 95
Country:
Re: Is this chip balled ?
«
Reply #2 on:
August 12, 2020, 08:52:11 pm »
Do you repair phones.
I have a doubt how do I know which chip to replace first this one or the
Audio IC CS47L93
Symptom is both speakers are dead. Both Mic are dead. And ear phone jack is dead.
But blue tooth audio works. For Music and games and videos but not for calls.
Samsung Note 9.
So do I need to build up balls in the socket or just clean up the socket put in the new chip and heat ?.
280c ok ?.
«
Last Edit: August 12, 2020, 08:58:05 pm by chinoy
»
Logged
Good thoughts, Good deeds, Good words.
All the religion you need in life.
flolic
Frequent Contributor
Posts: 387
Country:
Re: Is this chip balled ?
«
Reply #3 on:
August 12, 2020, 09:29:34 pm »
I can't help you diagnosing problem with Note 9.
Remove old chip and clean pads on the PCB with solder wick.
Apply flux, put new chip and heat with hot air. 280C is to low, I am using 360C. But that vary from case to case.
Logged
Print
Search
Pages: [
1
]
Go Up
« previous
next »
Share me
Smf
EEVblog Electronics Community Forum
»
General
»
General Technical Chat
»
Is this chip balled ?
There was an error while thanking
Thanking...
EEVblog Main Site
EEVblog on Youtube
EEVblog on Twitter
EEVblog on Facebook
EEVblog on Odysee