Sony TRINITRON KV-21C5B Service Manual page 22

BELL FILTER ADJUSTMENT (
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.
Before adjustment
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
V size
V Lin
S Corr
H Cent
H Size
Pin Amp
Corner Pin
Pin Phase
V Bow
V Angle
Upper V Lin
Lower V Lin
Left HBLK
Right HBLK
CD Mode (AV)
).
Secam models only
After adjustment
Adj
Adj
Adj
Adj
Adj
Adj
Adj
Adj
Adj
Adj
Adj
Adj
Adj
07
07
01
22
V SIZE
V LIN
S CORRECTION
V CENTRE
H CENTRE
H SIZE
PIN AMP
PIN PHASE
CORNER PIN
V ANGLE