Publicidad
5.8
Service Mode, English
Video signal info
PIP HW correction
Modulator system
TV-tuner
- In this menu the signal/noise ratio of the tuner input is displayed. The higher the
signal/noise ratio the lower the fi gure.
- Default set to OFF, but if there is a problem with the colours in the PIP picture it
can be set to ON (especially when mixing two TV systems, for example PAL and
SECAM).
Modulator system
System
BG
When replacing the EEPROM 6IC6, PCB6 or PCB14 where PCB6 is mounted, the
modulator system must be set to the correct system BG or I.
Select TV-tuner in the Service menu, press 2
TV service setup
Tuner system
1
Low tuning range
45
Lower band limit
172
Vhf-1 const
Vhf-2 const
161
146
In the TV service setup menu it is only the Tuner system and AFC fi elds that have
to be used. The rest of the fi elds are for factory usage, and the values in them
must not be changed.
Tuner system:
The digital value in the fi eld stands for the CTV system for which the applicable IF
is intended.
If the Tuner & IF PCB is replaced to permit reception of a different CTV system, the
digital value has to be changed.
The digital values for the various systems are the following:
B/G =
1
L/L'
=
2
M
=
4
D/K =
8
I
=
16
The digital value for system combinations is obtained by adding the applicable
digits.
AFC
On
High tuning range
860
Upper band limit
450
Uhf const
52
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