6310i LCD - GSM-Forum

bzpsmachine · 01-31-2004, 21:40

HI Guys
is there a common fault to look for when the LCD is blank on the 6310i's or is it a case of tracing back on schem to see if fault is a IC
any help at all mucho thanks

Medz · 01-31-2004, 23:33

Hi..

The commone causes of the LCD's faulty comes from
- The LCD itself ( Falier )
- The smoothening capacitors of the power lines of the LCDs
- Screen connectors
- Data buses and clocking tracking
- Power tracking
- And finaly crack under the prossessor Or faulty prossessor.

Those are the majorety causes of the LCDs problems

bzpsmachine · 02-01-2004, 00:36

which ones are the smoothening capacitors?

Medz · 02-01-2004, 22:31

C303 , and C304 = 100 nf . Also check C302 comes one to the +ve and other
pin to the last pin on LCD pads on PCB.

bzpsmachine · 02-01-2004, 23:41

ok thank you for your help

01-31-2004, 21:40	#1 (permalink)
bzpsmachine Freak Poster Join Date: Aug 2001 Location: Here Posts: 233 Member: 5858 Status: Offline Thanks Meter: 1	6310i LCD HI Guys is there a common fault to look for when the LCD is blank on the 6310i's or is it a case of tracing back on schem to see if fault is a IC any help at all mucho thanks

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01-31-2004, 23:33	#2 (permalink)
Medz No Life Poster Join Date: Sep 2003 Age: 66 Posts: 807 Member: 39601 Status: Offline Thanks Meter: 13	Hi.. The commone causes of the LCD's faulty comes from - The LCD itself ( Falier ) - The smoothening capacitors of the power lines of the LCDs - Screen connectors - Data buses and clocking tracking - Power tracking - And finaly crack under the prossessor Or faulty prossessor. Those are the majorety causes of the LCDs problems

02-01-2004, 00:36	#3 (permalink)
bzpsmachine Freak Poster Join Date: Aug 2001 Location: Here Posts: 233 Member: 5858 Status: Offline Thanks Meter: 1	which ones are the smoothening capacitors?

02-01-2004, 22:31	#4 (permalink)
Medz No Life Poster Join Date: Sep 2003 Age: 66 Posts: 807 Member: 39601 Status: Offline Thanks Meter: 13	C303 , and C304 = 100 nf . Also check C302 comes one to the +ve and other pin to the last pin on LCD pads on PCB.

02-01-2004, 23:41	#5 (permalink)
bzpsmachine Freak Poster Join Date: Aug 2001 Location: Here Posts: 233 Member: 5858 Status: Offline Thanks Meter: 1	ok thank you for your help