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How to set :

To set the Factory mode, press Volume 0 dac on the TV and Timer Setting 30 min. on the remote 
control and press Volume (-) Down button on the TV together press recall on the remote control.
CHK should appear on right of TV screen.
To movefrom CHK1 to CHK2 mode, etc. please follow below rotation :

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To Set Self-Check : 

Press the Volume Down button on TV then press the Off Timer button on remote control.

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Preparation:

1.  Receive the white balance pattern and aging should have been performed over 30 minutes.

2.  Set the picture menu to DYNAMIC NORMAL.

3.  Degausse the CRT face.

4.  Fix the CRT colour analyzer receiver unit to CRT face.

Adjustment of Low Light.

 

1.  Adjustment Sub Bright, so that Y = 6.3 ± 1.0 nit.

2.  Adjustment R-CUT OFF, so that X = 0.235 ± 0.010 nit.

3.  Adjustment G-CUT OFF, so that Y = 0.235 ± 0.010 nit.

Adjustment of High Light

 

1.  Adjustment Sub Bright, so that Y = 270 nit.

2.  Adjustment R-Drive, so that X = 0.265 ± 0.010 nit.

3.  Adjustment B-Drive, so that Y = 0.265 ± 0.010 nit.

 

 

Preparation:

1.  Connect the oscilloscope probe to TPL5.

2.  Screen VR min.

3.  Set the data Sub Bright, Bright.

4.  In service Mode at “Bright” dac press [5] in factory mode to enter vertical line and adjust by 

volume down or up button.

5.  Adjust “Screen VR” until 1-H Line appears.

 

 

Item / Preparation

 

Adjustment Procedure

 

+B Voltage

 

Confirm the DC voltage at the indicated test points, as follows :

1. Operate the TV set.

TPA 9 : 5 ± 1V

2. Set control as follows :

TPA 8 : 8 ± 1V

Brightness ........... 
minimum

TPA 10 : 141.0 ± 1.5V

Contrast .............. 
minimum

TPA 21 : 175 ± 15V

RF AGC

 

1. Receive a colour bar 

signal at an RF level of 
69 +1-2 dBU with 75

Ω

 

loaded.

1. Select “RF AGC” indication in CHK2, on Screen by remote control at factory mode.

2. Connect digital 

multimeter to RF AGC at 
Tuner.

2. Set RF AGC by using remote control Volume (+) or Volume (-) button until voltage AGC at Tuner 

reaches 2.3 ± 0.1V at TPA 15 (Tuner point).

3. Increase RF signal strength by 2dB, confirm AGC at Tuner voltage drop.

High Voltage

 

1. Receive the crosshatch 

pattern.

1. Connect a DC voltage meter to TPA 12 and confirm the +B voltage is 140.5 ± 1.5V.

2. Set to 0 Beam.

Screen VR .......... 
minimum

2. Connect a high frequency voltmeter to heater and confirm that voltage reads 6.3 ± 0.24 (VRMS).

Contrast .............. 
minimum

3. Normalize the brightness and contrast.

Item / Preparation

 

Adjustment Procedure

 

NTSC TINT COLOUR

 

Connect oscilloscope probe 
to TPL1 ( R out ).
Press Main Menu and set 

1. Adjust Sub-Tint so that No. 2, 3 and 4 becomes level waveform is similar to Fig. 3.