LCD connection problems on bb 9330 - GSM-Forum

spikehighway · 07-26-2011, 01:56

I'm new to the boards, apologies in advance if I am not posting this in the proper area.

My blackberry curve 9330 recently took a big gulp of water, warranty was voided and I'm not up for a renewal for some time. I decided to take it on myself, did some cleaning on the pcb with distilled water and 99% rubbing alcohol. I have gotten everything working again, as far as I can tell, with the exception of the screen. It comes on as it should, but is just white. I have since activated the phone and used the voice commands to successfully make a call. I tried to dig up as much info as I could, but didn't find much and bit the bullet and went ahead and ordered a new screen. It is still white. Took it to a shop here and they said that there was a short in the connection and that they could fix it for around $90, but wouldn't elaborate on the short. I have not been able to find the lcd pinouts for this model anywhere..or any other helpful information. Any help would be greatly appreciated!

urromeo · 08-04-2011, 06:43

1202 lcd tumper slution

voltran2008 · 08-04-2011, 19:56

i dont think its shortcut probably display ics are shorted... also blackberries same models have different lcd types make sure you got the right one.. not sure about 9330, not on the market where i live

spikehighway · 08-05-2011, 04:26

I am not sure what exactly you mean. I know that I got the same model screen, so I can rule that out. Some additional info that I didn't include before - I was able to get some close up looks at the connector on the PCB using the macro setting on a digital camera, a few of the connections between the pins and the connector are blackened and and appear to have significantly less amounts of solder on them. I have scrubbed them with both detergent and rubbing alcohol and still cannot get the oxidation off of on of the connections. I tried resoldering the connections, but obviously could not get that last point to take the solder with the blackened surface, and the screen is still white when I turn the phone on. Any ideas?

Also, if anyone has any tips on resoldering methods for something with such a fine pitch, please share!

07-26-2011, 01:56	#1 (permalink)
spikehighway Junior Member Join Date: Jul 2011 Posts: 3 Member: 1623026 Status: Offline Thanks: 0 Thanked 0 Times in 0 Posts	LCD connection problems on bb 9330 I'm new to the boards, apologies in advance if I am not posting this in the proper area. My blackberry curve 9330 recently took a big gulp of water, warranty was voided and I'm not up for a renewal for some time. I decided to take it on myself, did some cleaning on the pcb with distilled water and 99% rubbing alcohol. I have gotten everything working again, as far as I can tell, with the exception of the screen. It comes on as it should, but is just white. I have since activated the phone and used the voice commands to successfully make a call. I tried to dig up as much info as I could, but didn't find much and bit the bullet and went ahead and ordered a new screen. It is still white. Took it to a shop here and they said that there was a short in the connection and that they could fix it for around $90, but wouldn't elaborate on the short. I have not been able to find the lcd pinouts for this model anywhere..or any other helpful information. Any help would be greatly appreciated!

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08-04-2011, 06:43	#2 (permalink)
urromeo Freak Poster Join Date: Jul 2005 Location: Pak Age: 34 Posts: 257 Member: 162328 Status: Offline Sonork: 100.1618216 Thanks: 7 Thanked 20 Times in 13 Posts	1202 lcd tumper slution

08-04-2011, 19:56	#3 (permalink)
voltran2008 Freak Poster Join Date: Sep 2008 Location: Turkey Age: 38 Posts: 380 Member: 861795 Status: Offline Thanks: 31 Thanked 134 Times in 68 Posts	i dont think its shortcut probably display ics are shorted... also blackberries same models have different lcd types make sure you got the right one.. not sure about 9330, not on the market where i live

08-05-2011, 04:26	#4 (permalink)
spikehighway Junior Member Join Date: Jul 2011 Posts: 3 Member: 1623026 Status: Offline Thanks: 0 Thanked 0 Times in 0 Posts	I am not sure what exactly you mean. I know that I got the same model screen, so I can rule that out. Some additional info that I didn't include before - I was able to get some close up looks at the connector on the PCB using the macro setting on a digital camera, a few of the connections between the pins and the connector are blackened and and appear to have significantly less amounts of solder on them. I have scrubbed them with both detergent and rubbing alcohol and still cannot get the oxidation off of on of the connections. I tried resoldering the connections, but obviously could not get that last point to take the solder with the blackened surface, and the screen is still white when I turn the phone on. Any ideas? Also, if anyone has any tips on resoldering methods for something with such a fine pitch, please share!