Emerson Orion TC1972D, Service Manual

ELECTRICAL  A D J U S T M E N T S

NOTE

Use

 the

 1 -

 7

 keys on the remote control to Select

the options show” in Fig. 2-3.
Press the 

7

 key to end the adjustments

ADJUSTMENT MODE

1. AGC/BRIGHT/TINT/COLOR AUTO

2. SUB BRIGHT AUTO
3. AGC MANUAL

4. COLOR MANUAL
5. TINT MANUAL
6, BRIGHT MANUAL

7.

 END

Fig. 2-3

2-2-A: 

BRIGHT

1. Receive the monochrome pattern
2. Activate the adiustment  mode display and press

the 6 key.

3. Press the VOL. UP/DOWN key on the remote

control until 0% of gray scale will begins to lighten.

2-2-B. AGC

NOTE

Adjust after performing adjustments in section 2-l

In case of weak electric field.
1. Tune to a noisy channel.
2. Activate the adjustment mode display and press

the 3 key.

3. Press the VOL. UP/DOWN key a” the remote control

until noise is at minimum.

4. Change the channel. confirm other channels

are normal.

I” case of strong electric field.

(Radio frequency interlerence  can cause diagonal

streaks to appear.)

1. Aclivate  the adjustment mode display and press

the 3 key.

2. Press  the VOL. UP/DOWN key on the remote

c o n t r o l  until diagonal streaks are at minimum.

3. If there is still a problem after pressing the VOL.

UP/DOWN key on the remote control. install

an attenuator to the antenna terminals the”
repeat step 1.

4

4. Confirm noise does not  appear,
5. Change the channel. confirm other channels

are ‘normal.

2-2-C: 

TINT

1.

 Receive the color bar patter”.

2. Using the remote Control. set the brightness

and color to center position.

3. Using the remote control, set the contrast

to maxlmum  position.

4. Connect the oscilloscope to TPO23.

5. Activate the adjustment mode display and press

the 5 key.

6. Press the VOL. UP/DOWN key a” the remote

Control until the waveform becomes as show” in
Fig. 2-4

2-2-D: COLOR

1. Receive the color bar patter”,
2. Using the remote control, set the brightness

and tint to center position.

3. Using the remote control, set the contrast

t o   m a x i m i m  position

4. Connect the oscilloscope to TP022.
5. Activate the adjustment mode display and press

the 4 key.

6. Adjust the VOLTS RANGE VARIABLE knob of

the oscilloscope until the range between white

100%  and 0% is set to 5 scales a” the Screen
of Ihe oscilloscope.

7. 

Press the VOL. UP/DOWN key on the remote

control until the red color level is set to

the 

4.75th scale (95%) 

from while 0%.

(Refer to Fig. 2-5)

Fig. 2.5