Grundig Chassis 22.1 IDTV (i9)
Lenaro 70 Flat MFW 70-6510/8 IDTV GBD0100
Lenaro 72 Flat MF 72-6510/8 IDTV GBD0600
Lenaro 82 Flat MFW 82-6510/8 IDTV GBC9800
Start of the Service Mode: via " i " –> Service Code "8500".
Call up the Menu: Press button P+ / P– ==> "OK".
Adjustment: Press button v- / v+ or 1 (-10) / 3 (+10), 4 (-100) / 6 (+100).
Break of the Menu: Press button " i ".
End the Service Mode: Press button "TXT".
Measuring instruments: digital voltmeter, colour video generator.
Service works after replacement or repair of the following modules:
– Power Supply: adjustment 1
– Feature Module: adjust all basic settings (page 2-5), adjustment 2 and 4
– CRT, CRT panel: adjustment 3, 4 and 5
– Deflection: adjustment 4
This voltage must be checked and re-adjusted if necessary after every repair and before every alignment.
Set: ...............................................................AV operation
Brightness: .......................................................... Minimum
Contrast:.............................................................. Minimum
Digital voltmeter: ........................................ Cathode D607
Adjustment Process
Adjust +B with P601 dependent on the used CRT according
to the table on page 3-28.
2. Video
Colour video generator:............feed in a FUBK test pattern via aerial
Start the Service Mode with button " i " –> "8500".
Call up VIDEO ADJUSTMENTS with buttons P+ / P– –>"OK".
Call up SUBCARRIER with buttons P+ / P–.
Adjust the test pattern to pure with buttons v- / v+ (SUBCARRIER indication "VALID").
End the Service Mode with button "TXT".
3. Screen
Start the Service Mode with button " i " –> "8500".
Call up VIDEO ADJUSTMENTS with buttons P+ / P– –>"OK".
Call up SCREEN ADJ. with buttons P+ / P–.
Set the value to "0" with buttons v- / v+.
Press button "OK" –> black screen and a line visible in the middle of the screen.
Adjust SCREEN control at the diode splitt transformer, that screen is black and the line is just visible.
End the Service Mode with button "TXT". Grundig Chassis 22.1 TV Service menu
4. Geometry
Vertical Amplitude
Vertical Position
Vertical Linearity
Vertical Correction
Vertical Angel
Vertical Bow
Horizontal Position
East/West
Upper Corner
Lower Corner
Horizontal OSD Pos.
Vertical OSD Pos.
Horizontal Width
This adjustment must be done for PAL/SECAM (100HZ
GEOMETRY ADJUSTMENTS) seperately as well as NTSC
(120HZ GEOMETRY ADJUSTMENTS).
Colour video generator:
– at 100HZ GEOMETRY ADJ.:.......... feed in a PAL geometry
test pattern via aerial
– at 120HZ GEOMETRY ADJ.:...... feed in a NTSC geometry
test pattern via Scart 1 (AV1)
Start the Service Mode with button " i " –> "8500".
Call up 100HZ GEOMETRY ADJUSTMENTS or 120HZ GEOMETRY
ADJUSTMENTS with buttons P+ / P– –>"OK".
Call up the dialog line with buttons P+ / P–:
– TILT
– VERTICAL ZOOM
– EHT TRESHOLD
– EHT TIME CONSTANT
– VERTICAL EHT1
– VERTICAL EHT2
– HORIZONTAL EHT1
– HORIZONTAL EHT2
Call up the dialog line with buttons P+ / P–:
– VERTICAL AMPLITUDE
– VERTICAL SHIFT
– LINEARITY
– S_CORRECTION
– VERTICAL ANGEL
– VERTICAL BOW
– HORIZONTAL SHIFT
– CUSION CORRECTION
– UPPER CORNER 1 und UPPER CORNER 2
– LOWER CORNER 1 und LOWER CORNER 2
– HOR.OSD POSITION
– VER.OSD POSITION
– HORIZONTAL WIDTH
Adjust the test pattern with the buttons v- / v+ or 1 (-10) / 3 (+10), 4 (-100) / 6 (+100).
Is the adjustment range insufficient, set Horizontal Width to 255, than decrease EHT Treshold.
Universal Remote - Service Mode - TV Factory menu codes
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Grundig Chassis 22.1 TV Service menu (All TV Service Menu Code)
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Enter to Grundig Chassis 22.1 TV Service menu mode Written on March 13, 2015