Philips TPM14.1L Service Manual page 37

+12VSB_PRE
+12V_Amp
7.4 Front-End Analogue and DVB-T, DVB-C;
ISDB-T reception
7.4.1 Front-End Analogue part
The Front-End for analogue tuner consist of the following key
components:
• TUNER BRAZIL SUT-RA231ZN(NTSC, PAL-M, PAL-N
and ISDB-T)
• SCALER MT5561LVNT/B PBGA-329
Below find a block diagram of the front-end application for
analogue part.
SUT-RA231ZN
2
I C
IF_AGC
RF_AGC
X
RF_AGC
Figure 7-6 Front-End Analogue block diagram
4A
+5VSB
+12V DC-DC
G5759F11U
FB703
U706
MOS
STA381BW
AO4449
FB760
Q466
MOS
STA381BW
AON4421
FB701
Q711
12V AMP
Q711
12V
Q401
A04449-7A
Figure 7-5 DC/DC converters (for 24"/28"PHG4109/77)
I 2 C
IF
IF_AGC
MT5561
19620_203_140113.eps
140113
Circuit Descriptions
5A
DC-DC VCCK AVDD1V2
MS5561 Core Power/Analog Power
uP1734PSW8
1.95A(Max) 120mA(Max)
FB702
U703
PS_ON
600mA
LDO 3V3SB
G903T63UF
U702
MOS
1A
+5V_SW DC-DC DDRV(1.5V)
AO4449 G5695T11U
300mA(Max)
Q702 U411
1A
DC-DC DVDD3V3
G5695T11U
375mA(Max)
U705
1A
DC-DC TUNER3.3V
G1117-33 195mA
FB101
U402
USB_PWR_OCP0
G5250M1T1U
U112
USB_PWR_EN0
MOS
LED_PWR
1260mA (22")
AO4449
504mA
Q401
LVDS_PWR_EN
Audio AMP Power
Audio AMP Power
PVDD
AMP STA381BWTR
PANEL_VCC
7.4.2 DTV part
The Front-End for DVT part consist of the following key
components:
• TUNER BRAZIL SUT-RA231ZN (NTSC,PAL-M, PAL-N
and ISDB-T)
• SCALER MT5561LVNT/B PBGA-329
• DECODER CXD2838ER-T4 VQFN-48
Below find a block diagram of the front-end application for DTV
part.
SUT-RA231ZN
2
I C
IF_AGC
RF_AGC
RF_AGC X
Figure 7-7 Front-End DVB-T2 DTV block diagram
7.5 HDMI
Refer to figure
back to
div. table
TPM14.1L LA 7.
MT5561 DRAM Power
AVDD3V3
MT5561 IO Power
FB704
1A
LDO CVDD (1.1V)
Demod Power
G9661
TBD
U705
Tuner Power
USB Power
Panel Power
(24")
I 2 C
IF
DECODER
IF-AGC
CXD2838ER-T4
MT5561
19620_204_140113.eps
7-8 HDMI input configuration for the application.
EN 37
19621_201.eps
TS DATA
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2014-Mar-07