Sharp 34N-WF5H, Service Manual

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34N-WF5H
ELECTRICAL ADJUSTMENT
The TV set has been factory-adjusted to optimum condition. If by any chance an adjustment point gets out of spec
or readjustment is needed after component part replacement, take the following steps.
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Instruments required for servicing
• STB (Set Top Box)
Use model TU-DTV1000 that is already available on the market.
• HD Signal Generator
Used to generate 1080I monoscope pattern.
• NTSC Signal Generator
Used to generate monoscope, crosshatch and half color bar patterns.
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Calling the service mode (JWS mode)
Holding down the MENU button on the TV set front, turn on the power button on the TV set .
The screen as shown in Figure A. appears and the TV set is now in the service mode (JWS mode).
ADDRESS
DATA
PICTURE MODE
0 0 0
0
STRETCH
Figure A.
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To Exit the Service Mode (JWS mode)
Turn the television off by pressing the power button.
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Service Mode (JWS mode) Functions
1) The following adjustments and settings can be handled with the buttons on the R/C unit.
1
Video Adjustments (Picture, Tint, Color, Brightness)
2
Deflection Adjustments (Vertical Linearity, Vertical Size, Vertical Position)
(Horizontal Size, Side Pincushion, Horizontal Position)
3
Initial Factory Settings (Initial Factory Settings 1 and 2, V-Stop Setting)
4
White Balance Adjustments (Red/Green/Blue Cut-off, Green/Blue Drive)
5
On-Screen Display Positioning (Horizontal Display Position)
2) Applied buttons and their functions
In the service mode (JWS mode), the following buttons on the R/C Unit can be used for special functions.
BUTTON FUNCTION
1~9, 0 Used to enter numerical address settings; corresponding to numbers 0 thru 9.
100 Used as CLEAR button to go back to the initial screen.
INPUT Used as ENTER button to input addresses and data.
VOLUME UP Used to turn up data.
VOLUME DOWN Used to turn down data.
POWER Used to exit the mode.