22
V SIZE
V LIN
S CORRECTION
V CENTRE
H CENTRE
H SIZE
PIN AMP
PIN PHASE
CORNER PIN
V ANGLE
Before adjustment
After adjustment
BELL FILTER ADJUSTMENT (
Secam models only
).
Note : Ensure that the TV set has been powered up for at least
1 minute to allow for drift before carrying out the following
adjustment.
1.
Input a video SECAM Colour Bar signal via AV1.
2.
Connect an oscilloscope to pin 1 of CN504 [R-OUT] on the
A board.
3.
Enter into the ‘Picture’ menu and select ‘Bell-f0’.
4.
Decrease the register of ‘Bell-f0’ until the following waveform
change between RED and BLUE is obtained.
5.
When the correct waveform has been obtained add an
additional 7 steps to the register.
DEFLECTION SYSTEM ADJUSTMENT
1.
Enter into the ‘Geometry’ service menu.
2.
Select and adjust each item in order to obtain the optimum
image.
GEOMETRY
V centre
Adj
V size
Adj
V Lin
Adj
S Corr
Adj
H Cent
Adj
H Size
Adj
Pin Amp
Adj
Corner Pin
Adj
Pin Phase
Adj
V Bow
Adj
V Angle
Adj
Upper V Lin
Adj
Lower V Lin
Adj
Left HBLK
07
Right HBLK
07
CD Mode (AV)
01
