Beko D5, Руководство по обслуживанию

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TDA 7442
Digitally Controlled Audio Processor
Description
The TDA7442/42D is volume tone (bass and treble)
balance (Left/Right) processors for quality audio
applications in TV and Hi-Fi systems. It reproduces
surround sound by using a programmable phase
shifter. Control of all the functions is accomplished by
serial bus. The AC signal setting is obtained by
resistor networks and switches combined with
operational amplifiers. Thanks to the
BIPOLAR/CMOS Technology used, Low Distortion,
Low Noise and DC stepping are obtained.
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4 stereo inputs
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Input attenuation control in 0.5db step
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Treble and bass control
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Two surround mode available with 4 selectable
responses:
- music
- simulated stereo
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Two speaker attenuators:
- 2 independent speaker controls
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In 1db steps for balance facility
- independent mute function
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All functions programmable via serial Bus
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2 monitor output (only for tda7442)
S e m i c o n d u c t o r s
TDA6108
Triple video output amplifiers
General Description
By integrating three video amplifiers in a
single IC, the TDA6108 ICs provides a
single IC solution for driving color TV
CRTs.
Each device in the TDA6108 family
contains three video output amplifiers in
one
plastic DIL-bent-SIL 9-pin medium power
(DBS9MPF) package (SOT111-1). Using
high-voltage DMOS technology, this
enables each of these ICs to drive the
three cathodes of a color CRT directly,
providing a significant reduction in the Bill
of
Materials for new designs. For maximum
performance, the TDA610x amplifiers
should be used
with black-current control, enabling automatic black current
stabilization and removing the need for any external alignments on
the CRT board.