B2B-System Connectors; Block Diagram - Nokia 616 Service Manual

TFE-4/RV-1
TF4 Technical Information
B2B-System connector

Block Diagram

Poweronx
Flashbus
HF/HDAudi
Control-
Lines
*** Note: RS232 facility is only utilised in the N810 ***
VCAR
Car
IGNS
conne
ctor
CRM
HS/ID
conne
ctor
DU
connector
TF-5R
HF-
MIC
HF-
Spkr
Page 8b-34
Company Confidential
Vback5V
Voltage
Vback2V7
Devider
Poweronx
Filter
Flashbus
Filter
Engine Audio
Filter
Control IO
Filter
Figure 17: Block Diagram of B2B-Connection
4.2V DC/DC
≥ 1
VIDD
Copyright © 2005 Nokia Corporation.
Company Confidential
Nokia Customer Care
B2B Power/
UEM
RS232 -1
VBAT
UPP
RS232
B2B Power/
RS232 -2
VBAT
TF-4
B2BPoweroffx (Output 1.8V)
B2BIgnition (Input 1.8V
B2BCRM (output 1.8V)
B2BUI_POWERON
B2BHSMUTEX
B2BHFMUTEX
Audio
Issue 2.0 Mar/2005