LG 42PB4D-AA (CHASSIS:PB73B) Service Manual ▷ View online
- 33 -
ATI
X260
MPEG2 Decode
AC3 Decode
DTS bypass
SIF
Demod
.
SRS
TruSurround
Dolby pro Logic
BBE
Treble/bass control
Balance control
Volume control
ATI
X260
MPEG2 Decode
AC3 Decode
DTS bypass
SIF
Demod
.
SRS
TruSurround
Dolby pro Logic
BBE
Treble/bass control
Balance control
Volume control
MSP4450K
MSP4450K
COMP1
RGB(Phone jack)
COMP2
AV1
AV2
MNT Out L/R
2
NTP3000
PWM Modulator &
Digital audio signal
Process &
Digital Amp.
3
1
Speaker L
Speaker R
2
2
1
X260_SPDIF_OUT
SPDIF OUT
SPDIF_OUT
1
I2S (DATA, LRCLK, SCLK)
3
L/R
2
2
2
2
2
I2S
3
1
LC
LPF
LC
LPF
LC
LPF
LC
LPF
Rx_HDMI_SPDIF
SIF
1
Data/CLK/Valid/Error/Sop
TP1
12
TPA
Tuner
HDMI2
8
8
HDMI3
Rx C/0/1/2
±
Rx C/0/1/2
±
HDMI1
8
Rx C/0/1/2
±
3:1
DEMUX
3:1
DEMUX
MST3361
2HDMI +
3ADC
MST3361
2HDMI +
3ADC
8
CS8416
SPDIF Rx
SPDIF =>I2S
CS8416
SPDIF Rx
SPDIF =>I2S
I2S (DATA, LRCLK, SCLK)
3
AUD_MCLK
I2S (DATA, LRCLK, SCLK)
- 34 -
MICOM
13PIN PSU Cable
VBR_A
V668(LCD_HD)
VBR_A
VBR_
A
VBR_B_HD
VBR_B_EX
T
AI_on
/off
AI_on
/off
VBR_B_EX
T
Vbr_B_HD
V668(LCD_HD)
VBR_B_HD
V668(LCD_HD)
VBR-A
(PSU #10)
Amplitude control
-0V : 90%
-1.65V : 100%
-3.3V : 110%
-Open : 1.65(100%)
VBR-B
(PSU #7)
PWM Duty
-0V :
TDB(42
”120Hz)
20%(37
”120Hz)
30%(32:120Hz)
-3.3V : 100%
PWM_Dimming
Bri_ctrl
READY
READY
31Pin LVDS Cable
- 35 -
CEC Application
- 36 -
ATI
X260
ATI
X260
SIF
NTP3000
NTP3000
I2S
SPDIF
I2S
CVBS(NT Main)
DDR2
64MBx2
DDR2
64MBx2
Flex Bus
RGB 30bit
TPA
Analog
Front
End
USB 1.1
I2C Port0
I2C CH1
I2C CH2 I2C CH3
MTV415
Micom
MTV415
Micom
USB (upgrade ready!!)
Dead IC when Standby
Dead IC when Standby
Video
Scaler
0
Video
Scaler
1 or 2
Alive IC when Standby
Alive IC when Standby
Audio
Video
TP
AV2 / L/R
MNT Out L/R
COMP1 L/R
COMP2 L/R
RGB L/R
TP_IN1
AV1
AV2
AV1, Y/C1
AV2, Y/C2
Flash
(NOR 32MB)
Flash
(NOR 32MB)
Latch
x
2
Latch
x
2
24C512
24C512
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