Speaker (Ringer & Earpiece); Hinge Flex Connection - Nokia 2650 Service Manual

RH-53/54
8-System Module
Speaker (Ringer & Earpiece)
Table 9: Connections between UPP and Boomer
Signal From
Shutdown UPP
(Only GENIO[14
Ringer) ]
Table 10: Connections between UEM/Battery and Boomer
Signal
From
name
XAU- Differential
DIO[1] Fil- between HF and
tered HFCM. No direct
signal connection
between UEM
and Boomer
VBAT Battery

Hinge flex connection

Connection between main engine (lower block) and upper is done by hinge flex via 30 pins
board to board connector. Hinge flex includes Earpiece/Ringer, Display, SIM, LCD led and Vi-
bra signals.
Pin
1,2,3,4
5
6
7,8,9
10
11
12,13,14,15
16
17
18
19
20
Issue 2 06/2005
To Parameter
Boomer Vih Vil
Shut-
down (pin
5)
Paramete
To
Boome Output
r Swing
Boome Supply
r (pin 6)
Table 11: Hinge flex signals
Signal
GND
LCD_CSL
LCD_CSX
GND
Vibra
Vbat
GND
SIMCARD_Det
VSIM
SIM_RST
SIM_IO
SIM_CLK
COMPANY CONFIDENTIAL
Copyright © 2005 Nokia. All Rights Reserved.
Min. Max.
1.2 - - 0.4
Min. Max.
r
- 80mV
3.2 4.39
Comments
Display Serial Clock
Display Chip Select
PWM signal
For Vibra
Detection of SIM Card
3.0V/1.8V for SIM
SIM Reset
SIM Data
SIM Clock
Nokia Customer Care
Unit Notes
V V Boomer
Shutdown
treshold
levels
Unit Notes
Vpp Long-term
consump-
tion
V Lower limit
is SW cut-
off
19