Changing The Picture Format - Grundig CUC 2020 FR Service Manual

Partie générale / General Section
Notes:
- Should all video signal paths be in use on selection of AV because
Copy is active for example, this situation is identified and the TV
switches over to the next technically possible AV position.
- On selection of the country Italy in the menu, an AV-RGB signal with
blanking signal (Pin 16) has priority.
- The blue screen background does not appear in all AV settings.
AV socket configuration (dependent on the TV receiver)
Socket Input Output
AV1 RGB -
CCVS CCVS
SBAS (Y/C) CCVS
(converted)
AV2 RGB -
CCVS CCVS
SBAS (Y/C) CCVS
(converted)
AV3 CCVS -
Camera

9. Changing the Picture Format

In AV mode, the picture format can be switched over with remote
control button " " or the yelllow button in dependence of the size of
the picture tube.
The picture format is changed between 4:3 and 16:9 in AV mode and
on the programme position with Peribit.
This status is indicated by the switching voltage 6/12V applied to pin 8
of the AV 1 and AV 2 socket.
- 4:3 format 12V
- 16:9 format 6V (Necessary for 16:9 camcorder playback to compen-
sate for the vertical extension because supply of the 6/12V switching
voltage is not provided).
1 - 20
Switching Signal
6/12V (switching voltage)
+1V (fastblanking) evaluation
6/12V
6/12V
6/12V + 1V evaluation
6/12V
6/12V
5V generated from sync
CUC 2020 FR
GRUNDIG Service