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11.3 I/Os and Back Panel:
- There are 2 SCART connector , 6 pieces RCA jacks, for audio output, 1 optical digital audio ,1 s-video
output on the back panel.
- TOTX178 is used for laser output.
- For optical audio output S/PDIF is used.
- Q620, Q621 transistors are to mute the audio outputs while switching the state of the unit (power on/of)
- SCART pin 8 controls 16:9 and 4:3 mode .
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When the pin 8 output of the scart becomes 5 volts, 4:3 mode is selected and 16:9 mode is selected when this is turned off.
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There are antenna inputs for AM/FM tuner.
11.4 DDX Board (Class-D Amplifier):
· Chipset : 1xDDX-8228 + 2x DDX-2050
· Architecture : 1xFull-Bridge + 5xHalf -Bridge
· Power Supply : + 30V unipolar supply @ 6A max., + 3.3V @ 0.1A typ.
· Audio Input Interface: Serial I2S
· Control Interface: I2C
· Power Interface: + 30V @ 6A Max., + 3.3V@ 0.1A Typ
· Output Interface: Speaker Level
· Speakers: 4 Ohm Satellites + 8 Ohm Subwoofer
· Output Power: 5x15 Wrms + 1x25 Wrms
· DDX Audio proccess IC is DDX-8228.
· DDX board have digital audio input with I 2 S bus.
· For mute function, EAPD (pin51, External Amplifier Powerdown) signalis used. This signal comes to the
power output ICs U3 and U4 (DDX-2050 ICs Pin25) as power down signal.
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