LCD broke,does the liquid affect the PCB??

[kingsing84]

hi there!

i got a problem.

my phone's LCD broke,does the liquid affect the PCB..?

i had send to the O2 center for checkup..they said liquid is on the board..will make the phone unstable.is it true? they cost me around MYR 2000 or USD 400 for the screen and PCB

Malaysia O2 center always like to "cheat" their customer. for example : actually my LCD broke,the technician said this will also acffect the PCB,you need to change it too.what you get i mean? they make is big problem..bcos this is the only place where can fix and get part.others phone dont service PDA.

[clustered]

MYR 2000??? Better you buy a new one....

My brother just repaired the screen too at Times Square O2 shop.... It cost him only 550.....

[flawless]

It is quite possible for the liquid crystal to adversely affect the PCB underneath, as the liquid is conductive - if it leaked onto the PCB, it could cause a short.

However, the likelihood of this happening should be low. I don't know the exact insides of the Alpine, but generally there is a seperator between PCBs and LCDs for spacing, and in the case of touchscreens to prevent pressure on the PCB. Unless the LCD was cracked wide open, then it's unlikely that the liquid crystal even got out to the PCB, let alone do any damage.

[JP2005]

It is possible but not highly likely.

My line of work has me exposed to the basic production of PCBs.

PCBs have a layer over the wiring patterns. This is to not cause shorts should there be any part of the device to be loose and touch the board.

There are some exposed parts but too small to consider (these are usually test holes to check if the wiring pattern isn't broken.

The chips soldered unto the board usually get a thin layer of glue over the exposed metal parts. Again, to protect from shorts.

So it is not probable the LCD liquid will cause shorts to the PCB.

Although the PDA does have other parts that may have little or no protection from shorts. And those may cause a current build up and fry the PCB wiring patterns.

You should request to visually inspect your unit's PCB if they allow you to go to their work area. Also, have them explain in detail why and how your PCB is broken by the liquid.

[Xosix]

hye kingrings... its better u go n repair ur pda at lowyat at O2 agent repair shop.. its cause 550...dont tell about liquid things.. just give them n ask them to repair.. in 2/3 days..they will tell u whats the real problems.... ok :)

Regards
Xosix