Read LG 50PT85-ZB (CHASSIS:PD74A) Service Manual online
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BLOCK DIAGRAM
IDTV DVR Block
IDTV DVR Block
Comp
(DVD/DTV)
Rx0/1,Tx0/1
SCL/SDA
H/V(RGB)
SCL/SDA
Rx0/1/2/C
±
ST3232C
24LC02
24LC02
CXA2069Q
A/V Switch
A/D
Universal
Tuner
TU_Main
STHDMI002
HDMI MUX
RGB_PC/DTV
Cortez Plus
- Main CH. Decoding
- 3D Comb
- 3D De-
int
.
- Scaling & FRC
- GUI
- Audio Delay
- CPU
/
8
I
2
C
IR_in
RS232_Rx/Tx
Side-AV B
’D
AV
S-AV
YCin3
Flash(4MB)
PC_Audio
SIF
AVin3
LRCK/MC
K
SCK/SDA
L_SPK_out
R_SPK_out
I
2
S
Component In
Scart_RGB / FB
Main V or YC
LVDS_31P
/
Tx0/1/2/3/C
±
Disp_En
SCL/SDA
V_out1
Y_in1
Sub V or YC ,
DVR V or YC
I
2
C
I
2
C
For DDC_RGB
For DDC_DVI
I
2
C
RGB
(PC/DTV)
HDMI 2
(PC/DTV)
RS232
Scart1
Scart2
RF
PC_Audio
MNT_out (CVBS/L/R)
AVin1 (CVBS/L/R/Scart_ID)
TVL/R out
TC74LCX
RS232_ST
DVR LR
DVR
Scart
RGB
DTV 656
TV
Vout
TV
Vout
DTV_out
(CVBS/L/R)
TC74LCX157
LRCK/MC
K
SCK/SDA
I
2
S
DTV I2S
HDMI I2S
TC74LCX157
SPDIF out
ST SPDIF
MSP SPDIF
DDRRAM (256MB)
DTV_out
(CVBS/L/R)
MSP4450K
Audio SW &
Tone Control
AV_LR
PC_Audio
Comp_LRin
TV_L/Rout
SIF
STA333W
TV_L/Rout
AV_LR
uPD64015
Video
Decoder
24.576M
HY57V161610ET
SDRAM(
2MB
)
uPD61151
MPEG
Encoder
656 Comp
CS5331
I2S
IN
MCLK
16bit
32bit
HY57V641620ET
SDRAM(
8MB * 2
)
HY57V641620ET
STm5100
TP Dec.
Mpeg Decoder
Audio Dec.
74LCX541
Addr
/Data Buffer
For Hot
Plugg
-in
CI SLOT
Tuner TS1
CI TS
74LCX541
74LCX157
74LCX373 74LCX373
74LCX245
74LCX541
MUX
Logics for CI
74LCX32
74LCX08
74LVC14
PCMCIA
Power Switch
?
TPS2011
74LCX541 74LCX541
A/D
Univesal
Tuner
TDFC-G106P
27MHz
VCXO
HY5DU121622-D43
DDR SDRAM(64MB
)
S29JL064H70TFI010
Flash(8MB)
LMI BUS
16bit
FMI BUS
16bit
FMI BUS
16bit
STm5100
FMI BUS
16bit
STm5100
ATA To SATA
Converter
HDD
FMI BUS
16bit
STm5100
RS232_Cortez
DTV_out
(CVBS/L/R)
DTV 656
DTV I2S
24C256
I2C_0
32.768KHz
27MHz
74LVC14
DTV Reset
From CORTEZ
RS232_ST
ST-Connect (20pin)
Tuner TS
8
Mpenc_TS
TS0
I
2
C
TS1
SYS RST
I
2
C
DVR Option
$54.5
$0.5
$2.1
$2
Digital only
Tuner
TDFG-G105P
74LCX541 74LCX541
74LCX157
MUX
Tuner TS0
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