Panasonic CT-25G6CE Руководство по эксплуатации - Страница 14
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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 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; then proceed with the
instructions working with the Receiver. When
becoming familiar with the procedure, the Flow
Chart for Service 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. Adjust VOLUME to minimum (0).
2. Set CC Mode (Close Caption) OFF.
3. Select SET-UP icon and select CABLE mode.
4. Select TIMER icon and set SLEEP time for 30, 60
or 90 Min.
5. Press ACTION button twice to exit menus.
6. Tune to the Channel 124.
7. Press the VOL
button (decrease) on Receiver.
Red "CHK" appears in the left 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.
Note: Three additional indicators appear on screen.
One is the five digit usage in hours and the
other two are four digits for V-Chip Main and
Child ratings. Indicators are hexadecimal
numbers.
8. Press the Power Button on the Remote Control to
select one of seven Service Adjustment Modes.
1.
B= Service VCJ SUB-DATA adjustments.
2.
C= Service VCJ CUT-OFF adjustments.
3.
M= Service MTS adjustments.
4.
P= Service VCJ adjustments.
5.
S= Service OPTIONS (PICTURE) adjustments.
6.
X = Service AFC adjustments.
7.
"CHK" = Normal operation of CHANNEL
VOLUME
.
b
An address Menu appears in the right
hand corner of the screen
Figure 14. Service Mode Menu Adjustments.
Note: Only the applicable settings for the Receiver
serviced will be available (See a in Fig. 14).
Exiting the Service Mode:
Press the Action and the Power buttons on the
Receiver simultaneously for at least 2 seconds.
THE RECEIVER EXITS SERVICE MODE
The Receiver momentarily shuts off; then comes back
on tuned to channel 3 with a preset level of sound.
Any programmed channels, channels caption data and
some others user defined settings will be erased.
Always Exit the Service Mode
Following Adjustments.
and
- 14 -
a
b
B 00 33
C 00 0 255
IMPORTANT
a