LG 32LT75 / 32LT76 (CHASSIS:LD74A) Service Manual ▷ View online
- 25 -
74LCX157
MUX
TS_SEL
74LCX157
MUX
74LCX157
MUX
Fro m D- t uner
FE_TS1_DATA
Des c ram b led TS
TS1_DATA
A
B
L
A
H
B
To STi 51 00
74 LVC54 1
3s t at e
b uf f er
b uf f er
74LVC2 45
Trans c ei ver
Wit h d i rec t io n
3s t at e
74 LVC54 1
3s t at e
b uf f er
b uf f er
TS_SEL_CI
L ->
->
->
->
->
->
->
->
->
->
->
->
->
->
->
->
en ab le
H d is ab le
FMI_D
FMICS1
D_T/ R ( d i r)
74 LCX373
Lat c h
74 LCX373
Lat c h
CI_CS
FMI_A
CI_LATCH
L
B in p ut
H
A in p ut
A
B
L
enab le
H
Z
L
enab le
H
Z
L
p revi o us
H
enab le : FMI_A = CI_ADDR
CI_TS_DATA
Des c ram b led TS
CI_ADDR
CI_DATA
Fro m D-t un er
FE_TS1_DATA
Sc ram b led TS
Fro m D-t u n er
FE_TS_DATA
Sc ram b led TS
Des
c
ra
m
b
le
r
Des
c
ra
m
b
le
r
CI
Mo
d
u
le
sm
a
rt
c
a
rd
inte
rfa
c
e
M
icrop
roce
ssor
CI_TS_DATA
Des c ram b led TS
Sc art
1
Sc art
1
Sc art
2
Sc art
2
c xa2069q
c xa2069q
MSP4450K
MSP4450K
TV_L/ R o ut ( 3, 1p in)
DTV/ MNT_LROUT( 3, 1p in )
Sc art 1_Lrin ( 6, 2p in)
Co m p
J1 200
Co m p
J1 200
PC-aud i o
J1 10 0
PC-aud i o
J1 10 0
PC_Aud ioLR
Co m p _Rin
/ Lin
Av2
J1201
Av2
J1201
Si d e AV
P14 00
Si d e AV
P14 00
AV2_Li n / Rin
Li n5/ Rin5
AV_L/ R o ut
ANX
9021
ANX
9021
STi5100
STi5100
DTV_Lo ut
DTV_Ro ut
DTV_Ro ut
74LCX157
MUX
74LCX157
MUX
3
3
3
3
DVB/ PAL
Tun er
TDFC-G106P
DVB/ PAL
Tun er
TDFC-G106P
DVB/ PAL
Tun er
TDFC-G106P
DVB/ PAL
Tun er
TDFC-G106P
SIF
AM-Aud io
Fo r SECAM
TS1
uPD61151
En c o d er
uPD61151
En c o d er
JM20330
SATA Brid g e
JM20330
SATA Brid g e
TS1
FMI_BUS
DATA 1 6 b it
MC33078
MC33078
CS5331
ADC
CS5331
ADC
DVR_L/ R
3
3
HDD
HDD
STA333W
AMP
STA333W
AMP
3
3
SPDIF_MSP
SPDIF_STI
SPDIF OUT
J400
SPK_L_OUT
3 p in w af er
SPK_R_OUT
4 p in w af er
Analo g Signal
I2S
SPDIF
SIF
MCLK
4. CI slot composition
5. i-DTV PVR AUDIO PATH
- 26 -
STx5100
CUC
TU600
A/ D TUNER
IC103
( 24LC256- I)
I2 C_SCL0 / I2C_SDA0
0XAA
2. 7K
3 V3
IC1901
UPD64015
FE_SCL0
FE_SDA0
VDEC_SCL
VDEC_SDA
TU601
Dig it al t uner
I2 C_SCL1 / I2C_SDA1
2. 7K
3 V3
FE_SCL1
FE_SDA1
Co rt ez
Plus
TU600
A/ D t uner
SW_TU_SCL / SW_TU_SDA
SDA_5V / SCL_5V
IC1300
( MSP4450k)
IC1400
CXA2069Q
4. 7K
5. 0V
SDA / SCL
4. 7K
P_3. 3 V
IC1301
( STA335BW)
0X38
P801, P1901
( PDP PANEL)
IC407
( LM75)
SDA_EEPR / SCL_EEPR
4. 7K
IC702
HDCP EEPROM
IC701_24LC256
( NVRAM)
3 . 3V_CTZ
SDA_HDMI / SCL_HDMI
4. 7K
IC1004
STHDMI002A
+ 5VST
IC1002
AT24C028
J1000
HDMI JACK
SDA_HDMI_0 / SCL_HDMI_0
DDC_SDA_0 / DDC_SCL_0
IC1002
AT24C028
J1000
HDMI JACK
SDA_HDMI_1 / SCL_HDMI_1
DDC_SDA_1 / DDC_SCL_1
47K
+ 5VST
47K
+ 5VST
0X80
0X90
0X94
0XA8
0XC2
6. DVR Board I2C composition
- 27 -
MEMO
- 28 -
300
200
700
591
701
592
590
120
530
210
580
522
520
521
400
600
800
581
900
150
EXPLODED VIEW
LV1
A21
A2
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
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