7610 rocker key problem

**mbeenham** · 13-01-2008, 08:51 PM

I have 7610 where left, right, up, down rockers do not work.

All other keys and centre button work fine.

I have replaced membrane - no difference.

Any ideas please?

Thanks

**richard_wifi** · 13-01-2008, 09:12 PM

bro..
change full set keypad board (UI)...if not ok
change keypad IC..

reply result

**kalada** · 13-01-2008, 11:16 PM

change keypad IC.............

**mbeenham** · 14-01-2008, 06:55 AM

Thanks, I already changed out the keypad board - thats what I meant by membrane, sorry.

Do you mean change the two chips Z400 and Z401?
I'm not too sure how to do that, can you drop me a hint?
e.g. do they float off the pcb if I heat them up with my solder iron?

**richard_wifi** · 14-01-2008, 07:31 AM

bro...
u need brower to take out the IC... cannot use solder iron

reply post

**danish jalal** · 14-01-2008, 01:31 PM

Originally Posted by richard_wifi

bro...
u need brower to take out the IC... cannot use solder iron

reply post

i agree with richard_wifi----that is nice solution
---some time if bad upp(cpu) its make keypaid problem

**mbeenham** · 14-01-2008, 03:22 PM

Originally Posted by richard_wifi

bro...
u need brower to take out the IC... cannot use solder iron

You've lost me there - I haven't a clue what a brower is!
If I need special tools I'm stuck I guess.
Thanks a heap for all your help.

**richard_wifi** · 14-01-2008, 04:36 PM

Originally Posted by mbeenham

You've lost me there - I haven't a clue what a blower is!
If I need special tools I'm stuck I guess.
Thanks a heap for all your help.

heat blower is for repairing smd devices...
http://www.ipmart.com/main/browse.php?cat=86&cat=92

**faridsumro** · 14-01-2008, 05:07 PM

its for you my friend

post replay

**mbeenham** · 14-01-2008, 07:24 PM

Originally Posted by richard_wifi

heat blower is for repairing smd devices...

Well, so it is...
What an idiot I feel

Thanks again - I think I know where I can get the use of one of those.

**richard_wifi** · 14-01-2008, 07:43 PM

bro..choose the correct one for ur repairing purposes...coz there are heat blower/smd rework station which are expensive but performs alike with the ordinarily one..for start use ordinary one then u might want to get infra station with pre heater for advance repairing purposes...