Toshiba P600DL service manual Adjust Mode Press ADJUST to enter Adjust Mode

ADJUSTMENT

3-2. Adjust Mode

Press ADJUST to enter Adjust Mode.

To exit Adjust Mode press ADJUST twice (one press will request confirmation that you wish to exit Adjust Mode).

3-3. Saving adjustments

Pressing WRITING will exit Adjust Mode and save any adjustments made to non-volatile memory.

3-4. Adjustment parameters

All parameters except ‘Layout’ can be adjusted using the ▲▼ ‘Layout’ position is adjusted using the ٨٧<> buttons.

◄► buttons.

3-5. Internal Test Pattern

Test Patterns can be accessed by pressing TEST.P in Adjust Mode.

Continuously pressing TEST.P button will cycle through the available patterns or individual patterns can be selected by entering the relevant two digit number.

3-6. White Balance adjustment

There are three independent memories for white balance adjustments, press WB in NORMAL mode to select the desired memory (WB1, WB2, WB3) before making adjustments.

There are two stages for white balance adjustment to allow adjustment of low-level and high-level portions of the image.

For low-level adjustment 10-20% IRE signal is required and this should be provided by the main source to be used (i.e. if video is the main source a video test pattern generator should be used and if computer is the main source test pattern software should be used).

BRIGHTNESS will control the overall brightness of the image (not available for DIGITAL input) and CUTOFF followed by ADJ.R, ADJ.G and ADJ.B can be used to adjust the relative intensities of red, green and blue.

For high-level adjustment 70-80-90% IRE signal is required.

CONTRAST will control the overall level of the image (not available for DIGITAL input) and DRIVE followed by ADJ.R, ADJ.G and ADJ.B can be used to adjust the relative intensities of red, green and blue.

3-7. Gain and Off-Set

The above adjustments act on the digital signal (after the A/D converter) and assume a signal level of 0.7V p-p.

It is also possible to adjust the analogue signal (before the A/D converter) but these adjustments should be kept to the default values in most cases.

OFFSET followed by ADJ.R, ADJ.G and ADJ.B can be used for the low-level adjustment and GAIN followed by ADJ.R, ADJ.G and ADJ.B for the high-level adjustment.

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