Sharp 20MU11, Service Manual

9

Sub-Brightness Adjustment

1. Receive a good local channel.
2. Make sure the customer brightness control is set to

center position.

3. Enter the service mode and select the service

adjustment "S04".

4. Adjust "S04" data value to obtain normal brightness

level.

Vertical-Size Adjustment

1. Receive a good local channel.
2. Enter the service mode and select the service

adjustment "S09".

3. While observing the top and bottom of the screen,

adjust "S09" data value to proper vertical size.

Vertical Phase Adjustment

1. Enter the service mode and select the service

adjustment "S06".

2. Adjust data value to "00" ~ "03".
Note: This must be set "00" ~ "03" when changed data

retrace line will appear.

Horizontal Position Adjustment

1. Have unit receive a good local channel.
2. Enter the service mode and select the service

adjustment "S07".

3. Adjust "S07" data value so that picture is centered.

Caption Position Adjustment (Horizontal)

1. Receive a good local channel.
2. Enter the service mode and select the service

adjustment "S18".

3. A black text box appears on the screen. (see Figure

B. below)

4. Adjust "S18" data value so that text box is positioned

in the center of the screen.

3.58MHz Trap Adjustment

1. Receive a good local channel.
2. Enter the service mode and select the service

adjustment "S16".

3. This is a two position adjustment, "00" is ON, "01" is

OFF.

4. Adjust data value to "00" for normal viewing.

Sharpness, Audio Balance, Energy Save
Offset, DDE Offset, OSD Setup, Tuner
Setup and Option Adjustments

1. Receive a good local channel.
2. Enter the service mode and select the service

adjustments "S05" for sharpness, "S17" for balance,
"S20" for energy save offset, "S21" for DDE offset,
"S22" for OSD setup, "S23" for tuner and "OP" for
option.

»

 Sharpness Adjustment

3. Adjust data value to "24" (center of data range) for

sharpness adjustment.

»

 Audio Balance Adjustment

4. Adjust data value to "20" (center of data range) for

audio balance adjustment.

»

 Energy Save Offset Adjustment

5. Adjust data value to "23".

»

 DDE Offset Adjustment

6. Adjust data value to "03".

»

 OSD Setup Adjustment

7. Adjust data value to "00".

»

 Tuner Setup Adjustment

8. Adjust data value to "00".

»

 Option Adjustment

9. Adjust data value to "02".

Figure B.

20MU11