Read Panasonic Chassis / Euro-5VP Other Service Manuals online
11
.
The digital convergence circuit records, in the E²PROM, the
adjustment values of the correction current sent to the
convergence coil, for each screen, at 16 points horizontally
(14 points in the inner screen) and 11 points vertically (9
points in the inner screen) for a total of 176 points as the
crosshatch intersection point adjustment locations, as
vertical and horizontal adjustment data.
convergence coil, for each screen, at 16 points horizontally
(14 points in the inner screen) and 11 points vertically (9
points in the inner screen) for a total of 176 points as the
crosshatch intersection point adjustment locations, as
vertical and horizontal adjustment data.
The adjusted screen has 2 screens for both NTSC(60Hz) and
PAL.SECAM(50Hz) Mode. Therefore adjustment point data
for a total of 4 screens (P1-P3&FACT) is recorded in the
E²PROM.
When the power is input to the set, the SUB MPU reads the
176 point adjustment data (EX. P-2) from the E²PROM. After
curve interpolation, this is then written to the SRAM through
the LSI as compensating data.
The LSI reads the data from the SRAM. After outputting as 16
bit serial data while performing straight line interpolation, this
is then Digital/Analog (D/A) converted, amplified, and then
input to the R,G and B convergence coils.
PAL.SECAM(50Hz) Mode. Therefore adjustment point data
for a total of 4 screens (P1-P3&FACT) is recorded in the
E²PROM.
When the power is input to the set, the SUB MPU reads the
176 point adjustment data (EX. P-2) from the E²PROM. After
curve interpolation, this is then written to the SRAM through
the LSI as compensating data.
The LSI reads the data from the SRAM. After outputting as 16
bit serial data while performing straight line interpolation, this
is then Digital/Analog (D/A) converted, amplified, and then
input to the R,G and B convergence coils.
.
.
.
...
...
..
.
.
.
...
...
..
.
.
.
...
...
..
.
.
.
...
...
..
.
.
.
...
...
..
.
.
.
...
...
..
.
.
.
...
...
..
.
.
.
...
...
..
.
.
.
...
...
..
.
.
.
...
...
..
.
.
.
...
...
..
.
.
.
...
...
..
.
.
.
...
...
..
.
.
.
...
...
..
.
.
.
...
...
..
.
.
.
...
...
..
16 points
11
points
P-1
P-2
P-4
P-3
ADJUSTED DATA IN EEPROM
Sub
MPU
LSI
SRAM
NTSC
PAL
COPY
BOX
PAL
(factory)
D/A
R(H,V)
G(H,V)
B(H,V)
Calculation
AMP
AMP
R-Coil (H,V)
G-Coil (H,V)
B-Coil (H,V)
AMP
Convergence
coil
Click on the first or last page to see other Chassis / Euro-5VP service manuals if exist.