Adjusting Procedures - Sharp LC-22AD1E Service Manual

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Operation manual (67 pages)

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Table of Contents

LC-22AD1E

The best adjustment is made before shipping. If any position deviation is found or after part replacement is

performed, adjust as follows.

Preparation for adjustments

Use the dedicated AC adaptor or stable DC power supply.

AC adaptor: UADP-A056WJPZ

DC Power supply: 13V 7.0A

1. Adjustment procedure

• +B adjustment (adjustment at 5 V and 13V) → Enter the adjustment process mode.

→ Counter-bias adjustment.→ TAMP (contrast) adjustment. → White balance adjustment at the TV input.

2.Entering the adjustment process mode

•During after-sales service, the "MAIN POWER" key is turned on while pushing the "TV/VIDEO" and "MENU"

keys at the same time. ("K", indicating the inspection processing mode, will be displayed at the upper left of the

screen.)

→ Next, "CH (Ù)" Key and "

will be brought up.) To exit the adjustment process mode, press the "STANDBY-OFF" or "MAIN POWER-OFF"

key.

3. Key operation in the adjustment process mode

(1) Receiving channel selection

• The receiving channel UP/DOWN is performed with the "CH (ù)/(Ù)" keys.

One push......The UP/DOWN is performed per channel.

Continuous push......The UP/DOWN search is performed until a next receivable station is found.

• Direct channel selection using the 0 - 9 and 100 keys.

(2) Various adjustments

• The adjustment is preformed for each item with the cursor " (')/(")" keys, cursor " (Û)/(û)" keys,

"OK" key and "RETURN" key (LCD TV set or remote control).

• The adjustment item makes a toggle operation with the "(")" key input. (Next item)

• If the "(")" key is input while the bottom item is selected, it moves to the top item on the next page.

• When the cursor "(')" key is pressed, the item selected will move up to the previous item.

• When the "

(+)/(–)" keys or the cursor "(Û)/(û)" keys is pressed, the value of the selected item will be

changed up or down.

(3) Item selection

• If the item on the second page of the first layer is not I2C DATA and the "OK" key (the cursor "(Û)/(û)" keys

or the "

(+)/(–)" keys can also be used) is pressed, the top of each first page of the second layer will appear.

• To return from the second layer to the first layer, press the "RETURN" key.