Panasonic TC-14B10P, Service Manual

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TC-14B10P / TC-20B10P Service Adjustments and Calibrations
FOCUS ADJUSTMENT
1- PREPARATION
1.1- Apply a MONOSCOPE or PHILIPS pattern.
1.2- Confirm that Picture Menu is “ NORMAL DINAMIC ”
1.3- Adjust the controls to the following positions:
CONTRAST ..... MAXIMUM
BRIGHT ........... NORMAL
IMPORTANT :SUB BRIGHT adjustment should
have been done before.
2- ADJUSTMENTS
2.1- Adjust the FOCUS meter (FBT) until the best
focalization of image is obtained.
FRONT PANEL CHECKING
1- TV/AV VERIFICATION
1.1- Apply a PHILIPS pattern.
1.2- Press TV/AV button and verify if “AV” shows up ON
SCREEN
2- VOLUME VERIFICATION
2.1- Press VOL(+) or VOL(_) button and watch for a slight
variation.
2.2- Confirm that indication of volume position change
slightly on ON SCREEN.
3- CONFIRMING THE FUNCTION TURN ON/OFF OF
AC SWITCH
3.1- Turn OFF and turn ON the AC switch. Confirm that
previous memory position is saved. (it shows PHILIPS
pattern).
3.2- Confirm that volume is minimum and the other controls
are on the final adjustment condition.
3.3- Verify if led is on.
FINAL POSITION OF CONTROLS
VOLUME ......... MINIMUM
COLOUR ................ CENTER
BRIGHT .......... CENTER
CONTRAST ........ MAXIMUM
4- CHECKING THE MICROPROCESSOR
4.1- Press the CH(+) or CH(_) button at the remote control
and confirm that ON SCREEN of the number of
channels previously tuned, up and down.
5- STAND BY OPERATION
5.1- Turn the TV on using the ON/OFF switch.
5.2- Press the ON/OFF button at the remote control to enter
in the STAND BY mode.
5.3- Disconnect and reconnect the power supply cable.
5.4- Confirm if TV set is at STAND BY.
5.5- Press the CH(+) or CH(_) button at the remote control
and verify if the TV turns on.
6- VERIFICATION OF THE “FUNC” KEY
6.1- Press the FUNC key at the front panel and verify if
the following sequence appears:
AUTOMATIC TUNING
SKIPP CHANNEL OFF
ANTENNA TV
7- HOTEL MODE CONFIRMATION
7.1- Adjust the volume to 15.
7.2- Enter HOTEL MODE . To enter, set OFF TIMER to 30
and press simultaneously CH(+) at the front panel
and RECALL at the remote control.
7.3- Confirm that the MAIN MENU and OFF TIMER are
not operating.
7.4- Confirm that the maximum volume possible is 15
7.5- Exit HOTEL MODE . To exit, press simultaneously
VOL(_) at the front panel and OFF TIMER at the
remote control.
7.6- Confirm that OFF TIMER operates normally.
AV IN TERMINALS CHECKING
1- REQUIRED INSTRUMENTS
1.1- TV pattern signal generator
2- PREPARATION
2.1- The colour adjustment should already been done.
2.1- Set the TV/AV switch to A V position.
3- CONFIRMATION
3.1- Confirm that “AV” appears on ON SCREEN
3.2- Confirm that image and sound disappears
3.3- Connect the pattern signal generator to the rear AV
input terminal and confirm that noise and image
appears.
3.4- Connect the other source to the front AV input terminal
and confirm that the pattern signal connected to the
rear AV input terminal was substituted by the signal
of front AV input terminal.
3.5- Set the TV/AV switch to TV position.