LG S42S1-W Service Manual

4-10
2. IC701 (TPIC2050)
: 9ch motor drive with 3 beam laser diode driver
2-1. Block Diagram
ENDDET
F/B
SSZ
W
V
U
MCOM
AGND/DGND
P12V1
P12V3
CP1 CP2 CP3
TRK+
TRK-
FCS+
TLT-
TLT+
SOMI
SLED1+
SIMO
XFG
SCLK
LOAD+
P5V1
AGND
RDY
STP1-
STP2+
STP2-
CV3P3V
SIOV
XRSTIN
GPOUT
0.1u
P12V
9.5V
XFG
SSZ
VLDDIN
SCLK
SIMO
SOMI
3.3V
RESETIN
RDY
GPOUT
0.1u
C10V
0.1u
F/B
SPMLogic
DACPWM
SPII/F
0.1u
P12V
P5V2
P12V2
SLED1-
SLED2+
SLED2-
FCS-
LOAD-
PGND1-2
STP1+
BEMF
detector
SPM
Current limit
ICOM2
ICOM1
ISENSE
0.1.
Charge
pump
Digitalcore
pre-
driver
power
FET
SLEDEND
detection
STEPEND
detection
DAC
PWM
DAC
PWM
DAC
PWM
DAC
PWM
DAC
PWM
DAC
PWM
DAC
PWM
P5V
P5V
P12V
int3.3V
Regulator
A5V
P5V
int10V
Regulator
Analog
5V
DAC
P12V
SLDENA
TLTENA
DIFFTLT
TEMPMON_ENA
TRKENA
STPENA
SPMENA
power
monitor
SIOV
200k
200k
SIOV
33k
19V
LOADENA
F/B
F/B
F/B
F/B
F/B
SLDENA
TPIC2050
Onchip
thermometer
pre-
driver
power
FET
pre-
driver
power
FET
pre-
driver
power
FET
pre-
driver
power
FET
pre-
driver
power
FET
pre-
driver
power
FET
pre-
driver
power
FET
pre-
driver
power
FET
TRAYLock
detection
XSLEEP
1k
P12V
P5V
P5V12L
CA5V
0.1u
10u
A9P5V
ILDDBD
ILDDDVD
ILDDCD
V/I
V/I
V/I
LD
select
VLDDIN
ENDDET
ENDDETENA
ENDDETSEL[1:0]
ENDDET
ENDDET
200k
SIOV
SIOV
SOMI_HIZ
SIOV
GPOUT_ENA
XSLEEP
LDD_MSEL
LDD_AMODE

LG S42S1-W Specifications

General

Brand	LG
Model	S42S1-W
Category	Home Theater System
Language	English