GSM-Forum - View Single Post

**aZimBahar** · 05-05-2011, 15:00

Nokia E5 Display Light Jumper Ways - connection track

Troubleshooting hints on Nokia E5 LCD display light problem:
1. First try to replace the LCD screen display module.
2. Check the LCD pin connector, clean, re-solder it if necessary.
3. Check/read the VBAT voltage across the inductor coil, check the inductor coil too, replace if found damaged.
4. Trace the connection line paths of VLED-, VLED+ and the switching line.
5. Check/ replace the resistors near the LED driver IC.
6. Rehot, rework or replace the LED driver IC.

05-05-2011, 15:00	#1 (permalink)
aZimBahar Product Manager Join Date: Dec 2009 Location: CEO.of.ROMDevelopers Age: 32 Posts: 16,005 Member: 1174508 Status: Offline Sonork: 100.1593820 Thanks Meter: 11,978	nokia e5 hardware solution here . Nokia E5 Display Light Jumper Ways - connection track Troubleshooting hints on Nokia E5 LCD display light problem: 1. First try to replace the LCD screen display module. 2. Check the LCD pin connector, clean, re-solder it if necessary. 3. Check/read the VBAT voltage across the inductor coil, check the inductor coil too, replace if found damaged. 4. Trace the connection line paths of VLED-, VLED+ and the switching line. 5. Check/ replace the resistors near the LED driver IC. 6. Rehot, rework or replace the LED driver IC.