RCA MCR61TF30, Service Manual

Page: 21 / 48

SERVICE MANUAL
TDA9859 (N606)
Universal Hi-Fi Audio Processor for TV
1. Features
Multi-source selector switches six AF inputs
(three stereo sources or six mono sources).
Each of the input signals can be switched to
each of the outputs (crossbar switch).
Outputs for loudspeaker channel and peri-TV
connector (SCART).
Switchable spatial stereo and pseudo stereo
effects
Audio surround decoder can be added
externally
Two general purpose logic output ports
I
2
C-bus control of all functions.
2. General Description
The TDA9859 provides control facilities for the
main and the SCART channel of a TV set. Due
to extended switching possibilities
signals
from three stereo sources can be handled.
3. Block Diagram
(1)
For
extended
bass
control,
the
cap
acitor
between
CBR/L1
and
CBR/L2
shoul
d
b
e
replaced
by
the
extended
bass
control
network.
Fig.
14
Block
D
iagram
and
A
pplication
Circuit.
4. Refer to Table 9 about Functions and Data of the IC’s Each Pin.
19