Grundig Davio 37 Service Manual page 22

GRUNDIG Service
3.2 Factory Settings
Select the "Factory settings" dialog line via button " " (–> OK with
TP 750) "Dialog Center" –> "Service".
Use the "OK" button on the remote control to call up the factory settings
(NVM) and to store them.
3.3 Forced Chroma Switching
Call up the dialog line "Color" via button " " (–> OK with TP 750) "Dialog
Center" –> "Service". With the buttons
automatic chroma standard switching function into "PAL", "SECAM" or
"NTSC 3.6" or "NTSC 4.4" on a per-programme basis under poor
reception conditions.
3.4 IR Data Programmer (for SAT not possible)
Call up the dialog line "IDP2 HP" via button " " (–> OK with TP 750)
"Dialog Center" –> "Service".
Using the "OK" button, it is possible to store up to 99 programme
positions with data for channel, TV standard, Peri, 6-position station
name, centre fine tuning, and "0" volume offset, with the help of the IR
data programmer 2.
The Programmer transfers only the 6-position station name with centre
fine tuning and "0" volume offset.
4. Service Settings for the Dealer
4.1 Service Menu
Call up the Service Menu via button " " (–> OK with TP 750) "Dialog
Center" –> "Service" –> Service Code.
Having entered the code number "8500" the dealer can change the
following settings under menu guide:
- Geometry
- White adjustment
- AGC
- AFC
- OSD horizontal
- OSD vertical
- Hotel
- OEM
- Remote control
Alignment: page 2-3
4.2 OSD Position
Call up the dialog line "OSD" via button " " (–> OK with TP 750) "Dialog
Center" –> "Service" –> Service Code "8500".
With the buttons it is possible to shift the on screen display in the
horizontal or vertical direction and to store this position "with mem.".
4.3 Hotel Mode
4.3.1 Activating the Hotel Mode
Call up the dialog line "Hotel" via button " " (–> OK with TP 750) "Dialog
Center" –> "Service" –> Service Code "8500".
With activated "Hotel Mode":
- it is no longer possible to call up the "Dialog Center" menu with button
" ".
- the last volume setting is stored as the maximum level possible.
4.3.2 Deactivating the Hotel Mode
Press and hold button " " on the remote control handset while switching
the TV set on with the mains switch. Under the "Service" menu switch
the Hotel Mode off.
4.4 OEM
Call up the dialog line "OEM" via button " " (–> OK with TP 750) "Dialog
Center" –> "Service" –> Service Code "8500".
Colour change of the menus.
Standard setting for Grundig menu: OEM "off".
4.5 Remote Control
Call up the dialog line "Remote cont." via button " " (–> OK with TP 750)
"Dialog Center" –> "Service" –> Service Code "8500".
TP 150C (36kHz) = "1"
TP 750 (30kHz) = "0"
4.6 Luminosity of the Operating Mode LED
Call up the dialog line "End" via button " " (–> OK with TP 750) "Dialog
Center" –> "Service" –> Service Code "8500".
Use the "red" minus and "green" plus buttons on the remote control to
adjust the LED luminosity in normal operating mode.
Use the "yellow" minus and "blue" plus buttons on the remote control
to adjust the LED luminosity in standby mode.
it is possible to force the
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4.7 Deactivating the Protection Circuit
- Horizontal and vertical protection circuit:
connect the basis and emitter at CT50055.
- Horizontal protection circuit:
connect the basis and collector at CT57113.
- Vertical protection circuit: to short out C50052.
Attention: When the repair is completed, it is absolutely necessary to
activate the overlaod protection circuits.
CUC 2105, 2121, 2121 M