Panasonic PT-51D31CE Посібник з експлуатації - Сторінка 2

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Service Mode (Electronic Controls)

This PTV has electronic technology using the I²C Bus

Concept. It performs as a control function and it

replaces many mechanical controls. Instead of

adjusting mechanical controls individually, many of the

control functions are now performed by using "On

Screen Display Menu". (The Service Adjustment

Mode.)

Note: It is suggested that the technician reads all the

way through and understand the following

procedure for Entering/Exiting the Service

Adjustment Mode and then proceed with the

instructions working with the PTV.

Quick Entry to Service Mode:

When minor adjustments need to be done to the

electronic controls, the method of Entering the Service

Mode without removal of the cabinet back is as follows

using the Remote Control:

1. Select SET-UP icon and select CABLE mode.

2. Select TIMER icon and set SLEEP time for 30 Min.

3. Press "ACTION" twice to exit menus.

4. Tune to the Channel 124.

5. Adjust VOLUME to minimum (0).

6. Press VOL

(decrease) on PTV. Red "CHK"

appears in upper corner.

Note: After PTV is set into SERVICE mode, set

TIMER back to NO.

To toggle between Aging and Service

modes:

While the "CHK" is displayed on the left top corner

of the Screen, pressing "ACTION" and "VOL UP" on

the PTV simultaneously toggles between the

modes. Red "CHK" for Service and yellow "CHK" for

Aging.

7. Press "POWER" on the Remote Control to select

one of the Service Adjustment Modes.

1. B= Service VCJ SUB-DATA Adjustments.

2. C= Service VCJ CUT-OFF Adjustments.

3. D= Service PINCUSHION Adjustments.

4. P= Service PIP Adjustments.

5. S = Service S OPTION Adjustments.

6. X = Service X OPTION Adjustments.

7. V= Service Y OPTION Adjustments.

Service Manual

8. "CHK" = Normal operation of CHANNEL

and VOLUME

32 B 0

An address Menu appears in the right

hand corner of the screen

Figure 7. Service Mode Menu Adjustments.

Exiting the Service Mode:

Press "ACTION" and "POWER" on the PTV

simultaneously for at least 2 seconds.

THE PTV EXITS SERVICE MODE.

The PTV momentarily shuts off; then comes back on

tuned to channel 3 with a preset level of audio.

Any programmed channels, channels caption data and

some others user defined settings will be erased.

Always Exit the Service Mode

Following Adjustments.

To Check Purity:

Press "RECALL" on the Remote Control when in

Service Mode (red "CHK" is displayed) to enter the

Purity Field Check Mode.

Press "RECALL" again to select desired field.

BLUE

GRN.

SCREEN

Figure 8. Purity Check Field Mode.

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215 C 0

NOTE

NORMAL

SCREEN

RED

WHITE

SCREEN