Bd Output; Overview; Ic1707 Regi Correction - Sony TVP-08 Training Manual

BD Output

Overview

The BD Output takes the digital outputs from IC1707 Regi Correction and
converts them to analog signals which are then output from the BD board
to the Convergence Amps on the D board. (Not shown)

IC1707 Regi Correction

IC1707 Regi Correction receives sync and data signals that allow it to
output the correct waveforms to control the convergence of the three tubes.
These signals are output in digital format along with BCLK (Bit Clock) and
WCLK (Word Clock). The HBLK is output from IC1707/26 for use as a
compensation signal for blue to reduce corner distortions. There are six
digital data streams output from IC1707 Regi Correction to the D/A Con-
verters.
The Red Vertical Output is input to IC719/14 RSI and IC715/14 RSI. The
analog signals are output from pin 6 of each of these ICs. They are
combined and input to IC1705/2. IC1705 is a filter amplifier which will
output the RV signal to CN523 on the A board.
The Red Horizontal Output is input to IC719/15 LSI and IC713/14 RSI.
The analog signals are output from IC719/11 and IC713/6, combined and
input to IC1702/2. IC1702 is a filter amplifier outputs the RH signal to
CN523 on the A board.
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The Green Vertical Output is input to IC714/14 RSI and IC720/14 RSI.
The analog signals are output from pin 6 of each of these ICs. They are
combined and input to IC1708/2. IC1708 is a filter amplifier which outputs
the GV signal to CN523 on the A board.
The Green Horizontal Output is input to IC714/15 LSI and IC720/15 LSI.
The analog signals are output from IC714/11 and IC713/11. They are
combined and input to IC1706/2. IC1706 is a filter amplifier which outputs
the GH signal to CN523 on the A board.
The Blue Vertical Output is input to IC721/14 RSI and IC724/15 LSI. The
analog signals are output from IC1721/6 and IC1724/11. These two sig-
nals differ because the LRCK signal of IC1724 is not the WCLK as it is in
IC1721. The different signal is used to compensate for corner distortion
problems. These different outputs are still combined and input to IC1710/
2. IC1710 is a filter amplifier which outputs the BV signal to CN523 on the
A board.
The Blue Horizontal Output is input to IC721/15 LSI and IC713/15 LSI.
The analog signals are output from IC721/11 and IC713/11, combined
and input to IC1709/2. IC1709 is a filter amplifier which outputsx the BH
signal to CN523 on the A board.