Sony TRINITRON KV-25C5A Service Manual page 22

KV-25C5/29C5
BELL FILTER ADJUSTMENT (Secam models only).
Note : Ensure that the TV set has been powered up for at least
No —
pe?
Before adjustment
1 minute to allow for drift before carrying out the following
Input a video SECAM Colour Bar signal via AV1.
Connect an oscilloscope to pin 1 of CN504 [R-OUT] on the
Enter into the 'Picture' menu and select 'Bell-f0'.
Decrease the register of 'Bell-f0' until the following waveform
change between RED and BLUE is obtained.
=>
After adjustment
When the correct waveform has been obtained add an
additional 7 steps to the register.
DEFLECTION SYSTEM ADJUSTMENT
1,
2.
Enter into the 'Geometry' service menu.
Select and adjust each item in order to obtain the optimum
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)
22
OVE IAL i
V SIZE
V LIN
S CORRECTION
V CENTRE
H CENTRE
H SIZE
PIN AMP
PIN PHASE
CORNER PIN
V ANGLE