GRUNDIG Service
Chassis G1
2 - 2
Alignment
All adjustment controls not mentioned in this description are adjusted during production and must not be re-adjusted in the case of repairs.
Call up the service menu:
Button "
i
" (EASY DIALOG)
Call up the dialogue line:
Buttons "
P+
" / "
P-
" –> "
OK
"
Change setting in the dialogue line:
Buttons "
Ǹ
" / "
Ƿ
" –> "
OK
"
Back to previous menu:
button "
blue
"
Exit menu:
Button "
i
"
Service menu for the dealer:
Code no. "
8500
"
Measuring instruments: 100MHz oscilloscope with 10:1 test probe, colour test pattern generator.
Service work after changing the …
… Display, Adjustment 1, 4
… Chassis Board, Adjustment 1…3, 5
… M2 Board, Adjustment 1, 4
… Tuner, Adjustment 2, 3
1. Display Type
2. Terr. Tuner Type
3. Tuner AGC
4. White level
5. Screen geometry
VGA
Call up the "Display type" menu via "EASY DIALOG" –>
"Installation" –> "Dealer service menu" –> Code number
"8500" –> "Hardware equipment".
Call up the "Terrestrial tuner" menu via "EASY DIALOG" –>
"Installation" –> "Dealer service menu" –> Code number
"8500" –> "Hardware equipment".
Connect the 100MHz oscilloscope to the tuner contact 10 or
11 and to tuner ground.
Feed in a test pattern (sound carrier switched off) via the
aerial, 70…80dB
µ
V.
Call up the "AGC setting" menu via "EASY DIALOG" –>
"Installation" –> "Dealer service menu" –> "8500" –> "Spe-
cial functions".
Feed in a grey scale test pattern with burst.
White balance:
Central position
Contrast:
Maximum
Colour contrast:
Mean value
Screen brighness:
Mean value
Tilt angle:
Mean value
Call up the "White balance" menu via "EASY DIALOG" –>
"Installation" –> "Dealer service menu" –> "8500" –> "Picture
settings".
Switch the set to channel position "AV06" or "AV07" and feed
in a geometry test pattern via the VGA or DVI socket.
Call up the "Reset" menu via "EASY DIALOG" –> "Installation"
–> "Dealer service menu" –> "8500" –> "Screen geometry".
Select the appropriate display type.
Select the appropriate tuner type.
Set to 300-350mV
pp
.
Adjust the values for red, green and blue so that the picture
becomes achromatic.
Using the controls for Height, Width, Vert. shift. and Horiz.
shift, move the test pattern into the centre of the picture
screen, and then adjust a symmetrical display reading.
Saving:
The set value is saved by pressing the "yellow" button.
The picture geometry adjusts itself to the last saved value
when switching the TV set on again.
Alignment
Preparations
Alignment procedure
Содержание Tharus 26 LW 68-9510 Dolby
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