6
26MR70
For adjustments of this model, the bus data is converted to various analog signals by the D/A converter circuit.
Note: There are still a few analog adjustments in this series such as focus and master screen voltage. Follow
the steps below whenever the service adjusment is required.
To enter the service mode and exit service mode.
While pressing the Vol-up and Ch-up buttons at the sametime, plug the AC cord into a wall socket.
Now, the TV set is switched on and enters the service mode.
To exit the service mode, turn the television off by pressing the power button.
1. Service mode.
Before putting unit into the service mode, check that customer adjustments are in the normal mode. Use the reset
function in the video adjustment menu to ensure customer control are in their proper (reset) position.
2. Service number selection.
In the service mode, you will see the window screen as window
. There are 4 adjustment categories
DEF,
SIGNAL,
FEATURE,
FIX VALUE as show in
Figure A
.
Press CH UP/DOWN button for selection and enter by VOL UP or VOL DOWN.
Press CH UP/DOWN button to select the adjustment item and VOL UP/DOWN
to adjust the data number for each categories.
(OSD disturbance can be erased by R/C display key)
(Note: EEPROM - factory used only)
Figure A: ADJUSTMENT CATEGORIES
Window
: DEF
DEF
RETURN
RETURN
FIX VALUE
NEXT
FEATURE
D01
D03
D05
RETURN
D02
D04
D06
Window
: FIX VALUE
Window
: ADJUSTMENT CATEGORIES
SERVICE MODE
DEF
SIGNAL
FEATURE
FIX VALUE
EEPROM
RETURN
RETURN
Window
: SIGNAL
SIGNAL
S01
S13
RETURN
S02
S12
F01
F02
F13
F14
RETURN
NEXT
F15
F16
F25
F26
RETURN PREVIOUS
PREVIOUS
Window
: FEATURE
M01
M02
M05
M03
M04
RETURN
1
2
3
4
5
1
2
3
4
5
Summary of Contents for 26MR70
Page 11: ...11 6 5 4 3 2 1 A B C D E F G H 26MR70 CHASSIS LAYOUT PWB A PWB B ...
Page 12: ...12 6 5 4 3 2 1 A B C D E F G H 26MR70 BLOCK DIAGRAM ...
Page 14: ...15 26MR70 14 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM MAIN 1 Unit ...
Page 15: ...17 26MR70 16 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM MAIN 2 Unit ...
Page 16: ...18 6 5 4 3 2 1 A B C D E F G H 26MR70 SCHEMATIC DIAGRAM CRT Unit ...
Page 18: ...20 6 5 4 3 2 1 A B C D E F G H 26MR70 PWB A MAIN Unit Wiring Side ...
Page 19: ...21 6 5 4 3 2 1 A B C D E F G H 26MR70 PWB A MAIN Unit Chip Parts Side ...