Hands Free - Samsung SCH-211 Service Manual

10-3 Hands-free Kit Block Diagram
CRADLE
Interface
(JP701)
DM
Interface
(JP702)
Booster
Interface
(JP703)
CA to CR
Cable
HFX
Interface
(JP871)
Samsung Electronics-Contents may change without notice.
Noise
Cancel
Audio
to
HHP
Volume
Control
(U806C, U805)
Speaker
Amplifier
POWER
(U811)
SWITCHING
&
PROTECTION
(Q708~Q713,
U707B)
Hook on/off
Sensing
(U871)
Battery Kind
Sensing
(R871, R872)
Ambient
Temperature
Sensing (TH871)
Charge Indicator
LED Driver & LED
(Q871,Q872,JP874,D873)
CRADLE Board
CODEC1
(U803)
CODEC2
(U802)
AUDIO RAM
(U809)
REGULATORS
(U706, U704,
U807,U808)
CHARGING CIRCUIT
VTG. & Current
Regulator
(U705, U707A)
Current Control
(Q714, Q715)
MAIN
Interface
(JP872)
Block & Circuit Diagrams
DSP
(Algorithms for Handfree
U801)
MPU
(U703,
TMP91P640F-10)

Hands Free

Board
External
MIC
MIC701
Curl Cord (JP708)
10-3