Philips 19PFL3507T/60 Service Manual page 30

EN 30 7. TPM9.3E LA
Number CN8101 CN8102
Description to panel to panel
Pin 6 2
9 - -
10 - -
11 - -
12 - -
13 - -
7.3 DC/DC Converters
The on-board DC/DC converters at the SSB deliver the
following voltages (depending on set execution):
• +5V2-STANDBY, permanent voltage for the Stand-by
controller, LED/IR receiver and controls; connector
CN9302/CN902 pins 2 and 3
• +12V, input from the power supply for the panel common
(active mode); connector CN9302/CN902 pins 10 and 11
• +24V, input from the power supply for audio amplifier,
connector CN9302/CN902 pins 5 and 6
• +1V1, core voltage supply for MT5366; has to be started up
first and switched "off" last (diagram B01)
• +1V2, supply voltage for power supply for the scaler IC
MT5366
• +1V5, supply voltage for DDR2 (diagram B11)
• +3V3, general supply voltage (diagram B01)
• +5V-TUN, supply voltage for tuner (diagram B02)
• +5V-USB, input intermediate supply voltage for USB
(diagram B01)
• +3V3 from the power supply for the scaler IC MT5366
• +3V3-DVBS, clean voltage for DVB-S2 channel decoder
• +1V-DVBS, core voltage for DVB-S2 channel decoder.
Figures gives a graphical representation of the DC/DC
converters with its current consumptions:
+5 V
+5V
DVDD3V3
AVDD3V3
+12V
12 V
24V
24 V
Figure 7-3 DC/DC converters xxPFL35x7 series
7.4 Front-End Analogue and DVB-T, DVB-C
reception
7.4.1 Front-End Analogue
The Front-End for the analogue tuner consist of the following
key components:
• ENV57U09D5F
• MT5366IVGG/B
Below find a block diagram of the front-end application for
analogue.
2013-Mar-01
Circuit Descriptions
Connector
CN8103 CN901 CN9101
to panel Mains inlet to SSB
6 2 13
- - GND
- - Not connected
- - Not connected
- - Pdim
- - On/Off inverter
+5 V
Tuner
DVDD3V3
1.5 V
+5 V
USB
DVDD3V3
1.2 V
Panel
Amplifier
19240_203_120224.eps
Figure 7-4 Front-End analogue block diagram
7.4.2 DVB-T/C DTV
The Front-End for DVB-T/C DTV consist of the following key
components:
• ENV57U09D5F
• MT5366IVGG/B
• Demodulator MT5135AE/A
Below find a block diagram of the front-end application for
DVB-T/C DTV.
Figure 7-5 Front-End DVB-T/C DTV block diagram
7.4.3 DVB-T2 DTV
The Front-End for DVB-T/C DTV consist of the following key
components:
• ENV57U04D8F
• MT5366IVGG/B
120628
• Demodulator MT5135AE/A
Below find a block diagram of the front-end application for
DVB-T2 DTV.
back to
div. table
19240_204_120224.eps
120224
19240_205_120224.eps
120224