SELF CHECK MODE
- Self-check is used to automatically check the bus lines and hexadecimal code of the TV set.
- To get into the Self-Check mode press the down (-/v) button on the customer controls at the front of the set, at the same time pressing the STATUS button on the remote control.
- Self check mode screen will be displayed.
- If any item found to be incorrect or not located then " - - " will appear in place of "O.K.".
- ADJUSTMENT PROCEDURE
- +B SETUP.
- Receive a Grayscale signal.
- Set the controls :- Brightness to Minimum; Contrast to Minimum; Volume to Minimum.
- Set the +B voltage up as follows:- Adjust R811 so that B2 shows 148V ± 2V.
Confirm the following
voltages.
- B9 5 ± 0,25V B10 5 ± 0,25V
- B5 12 ± 0,5V B11 33 ± 1,5V
- B4 15 ± 1V B7 8 ± 0,5V
- B12 26 ± 2V B8 6 ± 1V
- B3 36 ± 1,5V B13 13 ± 1V
- B1 205 ± 10V B14 14 ± 1V
CUT-OFF / Ug2 ADJUST
- Receive a Grey-scale signal.
- Degauss the tube externally.
- Set the TV into Service Mode 1.
- Select Cutoff mode.
- To adjust Cutoff connect an oscilloscope to the Blue cathode.
- Press "STR" and adjust "cutoff" value using the "Yellow" and "Blue" buttons until the black level is 160V ± 5V, press "STR" to store the value.
- Remove the oscilloscope.
- Select Ug2 adjustment and adjust the screen VR until the display shows "O.K."
ALIGNMENT PROCEDURE
- Set the Bass to maximum position, set the Treble to minimum position, press the volume down button (-/v) on the customer controls at the front of the TV and at the same time press the INDEX button on the remote control, this will place the TV into the Service Mode.
- Press the RED / GREEN buttons to step up / down through the functions.
- Press the YELLOW / BLUE buttons to alter the function values.
- Press the STR button after each adjustment has been made to store the required values.
- To exit the Service Mode, press the "N" button.
