Service Mode (Electronic Controls)
This Receiver 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 DisplSaeyr vMeicnu?e Adj. (usTtheme nt Mode.)
Note: It is suggested thatecht the nician reads althe wal y through and understand the following procedure for
Entering/ExitingSe thrvie ce Adjustment Mode; then proceed with the instructions working with the Receiver.
When becoming familiar with the procedure, the Flow Chart for Serviceman Mode may be used as a quick
guide.
Quick Entry to Service Mode:
At times 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 button twice to exit menus.
4. Tune to the Channel 124.
5. Adjust VOLUME to minimum (0).
6. Press the VOL button (de on Rcreaseece) iv. Red er?CHK? appears in upper corner.
To toggle between Aging and Service modes:
While the ?CHK? is displayed on the left top corner of the CRT, pressing the Action and the Volume Up buttons
on the Receiver simultaneously will toggle between the modes. Red ?CHK? for Service and yellow ?CHK? for
Aging (Aging mode is used in the factory for quick operation).
7. Press thePo wer Button on the Remote Control to select one of Service Adjustment Modes.
1) B= Service VCJ SUB-DATA adjustments.
2) C= Service VCJ CUT-OFF adjustments.
3) S= Service OPTIONS (PICTURE) adjustments.
4) M = Service MTS adjustments.
5) P= Service VCJ adjustments.
6) X= Service AFC adjustments
6) CHK ? =? Normal operation of CHANNEL and VOLUME .
abba
Note: Only the applicable
B 00 33C 00 1 255settings for the Receiver
serviced will be availaable (See
in Fig. 20).An address Menu appears in the right
hand corner of the screen
Figure 20. Service Mode Menu Adjustments.
Exiting the Service Mode:
Press thAce tion and the Power buttons on Recthe eiver simultaneously for at least 2 seconds.
THE RECEIVER EXITS SERVICE MODE.
The Receiver momentarily shuts oomes bff; then cack on tuned to channel 3 presewitth level a of sound.
Any programmed channels, channels caption data and some others user defined settings will be erased.
IMPORTANT NOTE:
Always Exit the Service Mode
Following Adjustments.
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ACEC
PANASONIC
