Grundig CUC 1837 Service Manual page 29

DIGI 100
Alignment
7. Picture Call up the "Picture sharpness P. 1...199" menu via
sharpness "EASY DIALOG" –> "Installation" –> "Special functions"
(to page 2).
8. White level Feed in a grey scale test pattern with burst.
White balance:
Contrast:
Colour contrast:
Screen brighness:
Call up the "White level alignment" menu via "EASY
DIALOG" –> "Installation" (to page 2) –> "Dealer service
menu" –> "8500" –> "Picture settings".
9. Picture tube Call up the "Picture tube type" menu via "EASY
type DIALOG" –> "Installation" (to page 2 / option) –> "Dealer
service menu" –> "8500" –> "Special functions".
10. PIP position Feed in a transmitter picture.
Press and hold down the "PIP" button while switching on
with the mains switch.
11. Screen Call up the "Screen geometry" menu via "EASY DIALOG" –>
geometry "Installation" (to page 2) –> "Dealer service menu" –>
"8500".
Feed in a geometry test pattern.
Attention: The "Horiz. Pos." alignment influences the
horizontal phase. Prior to carrying out this adjustment, set
the picture width to minimum and correct the lock-in position
if necessary using the "H-Shift" plug.
Reset: The "Reset" field contains:
- either the optimum picture geometry data set at the
factory,
- or an average data record from the ROM if the set has
been started with the emergency data record.
After an incorrect alignment you may reload this basic data
at any time:
Call up the "Reset" menu via "EASY DIALOG " –>
"Installation" (to page 2) –> "Dealer service menu" –>
"8500" –> "Screen geometry".
Screen Switch the set to channel position "AV5" and feed in a
geometry geometry test pattern via the VGA socket.
VGA Call up the "Reset" menu via "EASY DIALOG " –>
"Installation" (to page 2) –> "Dealer service menu" –>
"8500" –> "Screen geometry".
12. Picture Feed in a convergence test pattern.
sharpness On 16:9 units, set the picture format to 16:9.
(TV sets without Contrast:
focus block) Set the brightness so that the black test pattern background
just brightens.
Line sharpness Feed in a convergence test pattern.
(TV sets with On 16:9 units, set the picture format to 16:9.
focus board) Contrast:
Set the brightness so that the black test pattern background
just brightens.
Line sharpness Feed in a convergence test pattern.
(TV sets with On 16:9 units, set the picture format to 16:9.
focus block) Contrast:
Set the brightness so that the black test pattern background
just brightens.
GRUNDIG Service
Preparations
Central position.
Maximum.
Mean value.
Mean value.
Maximum.
Maximum.
Maximum.
Alignment procedure
Adjust picture for best sharpness ("manual" or "0...3").
The channel positions 1...199 are adjusted at the same
time.
Adjust the values for red, green and blue so that the
picture becomes achromatic.
Set the picture type (T=Toshiba, P=Philips, V=Videocolor).
(This effects the peak beam current).
Adjust the vertical and horizontal PIP position so that the
small picture is not confined by the picture borders.
With the help of the user guide adjust the geometry values
first for the vertical deflection and then for the horizontal
deflection.
Only when this is done position the picture contents into the
centre of the screen. Re-adjust the picture width according
to the test pattern.
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.
Check the geometry via the menu guide and correct it if
necessary.
Use the FOC control on the picture tube panel to adjust the
vertical lines about 5 cm to the right and left picture border
for minimum horizontal width.
Use the FOC control on the picture tube panel to adjust the
horizontal lines in the picture centre for minimum vertical
width. When this is done, use the focus control on the focus
board to adjust the vertical lines about 5 cm to the right and
left picture border for mimimum horizontal width.
Use the FOCUS 1 control on the focus block to adjust the
horizontal lines in the picture centre for minimum vertical
width. The upper border sharpness must not be worse than
the centre sharpness - set to average value if necessary.
When this is done, use the FOCUS 2 control on the focus
block to adjust the vertical lines about 5 cm to the right and
left picture border for minimum horizontal width.
Units without focus block:
Abgleich / Alignment
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