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Reload this Page N70 no lights (open pattern) [SOLVED]
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Old 01-27-2010, 09:34   #1 (permalink)
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N70 no lights (open pattern) [SOLVED]

N70 water damage

Action taken:
1. Clean board
2. try other LCD
3. Change coil (still no lights)
3. remove light I.C.two patterns open(B1 & C2)

Solution: JUMPER
check schematic diagram, B1 & C2 is open and is connected to L2304(coil)
see pictures




finish
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Old 01-27-2010, 20:30   #2 (permalink)
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change lcd juck....................
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Old 01-28-2010, 01:27   #3 (permalink)
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Originally Posted by dil7689 View Post
change lcd juck....................
phone is already solved
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Old 01-28-2010, 03:08   #4 (permalink)
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You do a jumper in openwire?Huh?
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Old 01-28-2010, 03:09   #5 (permalink)
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Quote:
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You do a jumper in openwire?Huh?
just remove the light driver then jump then back driver light again
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Old 01-28-2010, 08:02   #6 (permalink)
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sir one dout its jumber solution how is it work display need 18v light please explain
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Old 01-28-2010, 08:09   #7 (permalink)
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nice one mates.. thanks for sharing.............
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Old 01-28-2010, 12:15   #8 (permalink)
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You do a jumper in openwire?Huh?
yes brother, just do the jumper



Quote:
sir one dout its jumber solution how is it work display need 18v light please explain
sir, the problem is both LCD & keypad no lights, not on LCD(no display).

please read carefully

got it?
Last edited by charner; 01-28-2010 at 12:21.
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Old 01-29-2010, 06:53   #9 (permalink)
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ok sir thanks for your advice but the function of light ic is amplifing voltage 4v to 14v when we remove light ic how is it work
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Old 01-30-2010, 03:36   #10 (permalink)
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sir mkvineethmk, i just jumper pin B1 & pin C2 of light I.C. then put it back again because the pad/pattern of B1 & C2 is broken.

got it!
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Old 01-30-2010, 03:39   #11 (permalink)
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problem solved .
tanhks.
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Old 01-30-2010, 03:56   #12 (permalink)
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nice solution congratz keep it up bro....
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Old 01-30-2010, 04:01   #13 (permalink)
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nice one bro..............................
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Old 01-30-2010, 06:44   #14 (permalink)
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ok sir i will got it thanks for your advice or nice to meet you
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