Philips FM24 Service Manual page 101

www.freeservicemanuals.info
one V shift value for the anti-ageing process that is applicable
for the AV1, AV2, and AV3 inputs.
Note: Horizontal shift cannot be done for sources that are
screen filling and do not have sufficient overscan.
Vertical
V-shift is done in the F21RE Receiver box when the TV mode
is active, or in the enhanced configuration when the monitor
mode is active.
Vertical anti-ageing steps:
• Height/height, the height/height shall be 1 display line
(approximately 1 mm).
• Number of steps, the maximum number of steps in
vertical direction shall be 9.
• Time between steps, the time between the steps shall be
80 minutes, which equals one complete horizontal ageing
shift (16 steps x 5 minutes).
The effect of V anti-ageing is a vertical movement
(start at 0):
4
↑ ↓
3 5
↑ ↓
2 6
↑ ↓
1 7
↑ ↓
0 8
↓
9 15
↓ ↑
10 14
↓ ↑
11 13
↓ ↑
12
With the following sequence:
0 → 1 → 2 → ...... → 14 → 15 → 0 → 1 → etc.
After every step, the vertical shift position and its direction are
stored in NVM. So the anti-ageing process returns to its last
position after the set has been switched off (or to standby).
Also, if by any cause (i.e. VGA-source selection or when
service/factory mode is active), the anti-ageing process is
stopped; the vertical shift position should be restored after
resuming the anti-ageing process.
Circuit Descriptions and List of Abbreviations
Digitized in Heiloo, Holland
31/8/2014
FM24 9. EN 101