IFP
50
(this item is accessible
for multistandard appliances
only
, provided that a
France/AM/VHF-L mode signal is memorized in the programme 1 position).
AGC tuner setting (AG)
With a signal of 1 mV applied to the aerial input on a UHF channel, adjust to 4 Vdc at pin 1 of the
tuner.
Setting the luminance/chrominance delay (Yx)
The delay must be adjusted to the following values:
Yp
18
(PAL)
Ys
30
(SECAM)
Yn
20
(NTSC)
Yo
22
(SCART)
The Yn function is only accessible if the signal is NTSC coded (
standard accepted only by
SCART
).
Audio stereo A2 decoder (SA/LA)
The
SA
and
LA
functions allow adjustment of the separation between the right and left audio
channels and of the respective levels. An RF stereo generator is therefore required. Disconnect
modulation to the left hand channel and adjust LA to give 1.4 Vpp at pin 1 of the SCART 1
connector. Then adjust SA for the minimum residual signal at pin 3 of SCART 1. If a stereo
generator is not available, set LA to 01 and SA to 0B to obtain a fair approximation.
Horizontal geometry (HSH/EW/PW/CP/TC)
There are two groups of these functions, one for 4:3 format (suffix 4) and one for 16:9 format (suffix
16), both of which must be adjusted because they are used in the zoom function (4:3 tubes
included). The functions of the single parameters are as follows:
HSH
Horizontal shift
EW
Horizontal amplitude
PW
Parabola correction
CP
Corner parabola correction
TC
Trapezium correction
In the case of 4:3 format picture tubes, enter
EW16 =
3F to ensure proper zooming.
Vertical geometry (VS/VA/VSH/SC)
Vertical geometry is adjusted starting with the
VS
(vertical slope) function, which is set so that the
central horizontal line of the test signal is exactly at the boundary between the visible image and
the black part below and
must not then be changed again
. The functions of the single
parameters are as follows:
VS
Vertical slope
VA
Vertical amplitude
VSH
Vertical shift
SC
Vertical S-correction (linearity)
White control (WB/WG/WR)
Using a black and white bar signal, adjust to obtain a grey image.
On screen (OSD)
Load the fixed value 3F.
Deactivating service mode
Once all the necessary adjustments have been made, press TV or MENU OFF on the remote
control to save all the changes and return the appliance to normal operating mode.
