Sharp 15JF-25S Servicehandleiding - Pagina 5

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15JF-25S

•Service Mode Function

All required adjustments for servicing this TV set, may be done in "Service Mode", excepting G2 and FOCUS.

How to access the Service Mode

1. Turn the receiver on and ensure that it is tuned into a test pattern.

2. Turn the receiver off using the mains switch.

3. Press the volume down and channel up buttons together. See Figure 1.

4. Continue pressing the volume down and channel up buttons while turning

the mains on using the mains switch. See Figure 1.

5. Keep pressing the volume down and channel up buttons until the picture appears.

6. When <<SHARPX X VXX.XX>> appears on the screen, release the two buttons.

7. The receiver is now in the Service Mode. See Figure 2.

To move between the various Service Mode functions, use the channel up and down buttons. See Figure 3.

Use the volume buttons to change the data to the desired value. See Figure 3.

The data will be stored automatically when exiting the Service Mode. To exit the Service Mode press the stand-by button

on the remote control or turn the receiver off with the mains switch.

SHARP X

STS0: XXXX XXXX

STS1: XXXX XXXX

STS2: XXXX XXXX

Figure 2

•How to record a new (blank) NVM (EEP-ROM)

When the NVM (EEP-ROM) is replaced for a new one, the Microprocessor automatically record values shown in

"Initial" column (Page 7).

Procedure:

1. Access the Service Mode. See the above procedure "How to access the Service Mode". Now the Microprocessor

has recorded the "Initial" Values.

SERVICE ADJUSTMENTS

X VXX.XX

Adjustment

(Yellow)

XXXX:

Figure 3

Figure 1

XX:

Value

(Green)