Nokia 5110 Instruction De Maintenance
PAMS
Technical Documentation
UI Module UE4S
Page 4–8
Original 03/98
Functional Description
Power Distribution Diagram
Display
LEDs of
Keybord
Keybord
LEDs of
Display
Display
Buzzer
PWR
VBB
VBATT
UAGND
UDGND
key
PWRXON
Display Circuit
The display circuit includes LCD module GD40 and two capacitors. The
LCD module is COG (Chip on Glass) technology. The connection method
for chip on the glass is ACF, Adhesive Conductive Film. The LCD module
is connected to UI board with gold wired elastomer. Capacitors are placed
on UI PCB.
LCD module is COG (Chip on Glass) technology. The connection method
for chip on the glass is ACF, Adhesive Conductive Film. The LCD module
is connected to UI board with gold wired elastomer. Capacitors are placed
on UI PCB.
The display driver includes hw–reset, voltage tripler or quadrupler which
depends on temperature, temperature compensating circuit and low pow-
er control. Driver includes 84x48 RAM memory which is used when some
elements are create on display. Elements can be create with software.
Driver doesn’t include CG–ROM. One bit in RAM is same as one pixel on
display.
depends on temperature, temperature compensating circuit and low pow-
er control. Driver includes 84x48 RAM memory which is used when some
elements are create on display. Elements can be create with software.
Driver doesn’t include CG–ROM. One bit in RAM is same as one pixel on
display.
[2.8V]
[6.7V]