Nokia 2255 Baseband Description And Troubleshooting page 23
Mobile terminal
Hide thumbs
Also See for 2255:
- User manual (54 pages) ,
- Manual (50 pages) ,
- Disassembly/assembly (14 pages)
Table of Contents
Advertisement
Nokia Customer Care
Output setting
resistors
Rset for display
LED (33 Ohms)
Dlight
ISSUE 1 10/2005
VIN (Vbat)
Current mirror
transistors
LED driver
Figure 19: Display Backlight Chip and Diagram
©2005 Nokia Corporation
Baseband Description and Troubleshooting
Vout (~12V)
VIN (Vbat)
Company Confidential
2255 (RM-97)
Rset for display
~9.5 V
(33 Ohms)
~8.8 V
~8 V
VLED+
VLED+
Vout (~9.5V)
Page 23
Advertisement
Table of Contents
Troubleshooting
