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45

No.

Adjustment Items

Adjustment Conditions

Adjustment Procedures

4

RGB2 system black level
signal amplitude adjustment

1. Select the following group and
subjects.
Group : OUTPUT2
Subject : R2-GAIN
R2-BLK
For the G and B colours, choose the
following respective subjects.
G2-GAIN and G2-BLK for G
B2-GAIN and B2-BLK for B
2. Connect the oscilloscope to pin (2)
(for R) of P1001.
3. Similarly connect the oscilloscope 
to the following for the G and B
colours.
Pin (4) of P1001 for G
Pin (6) of P1001 for B

• 

Select R2-GAIN. Adjust the setting so
that the signal component has the
minimum amplitude.

• 

Select R2-BLK. Adjust the setting so
that the waveform becomes a straight
horizontal line.

5

Sample hold pulse phase
checking

1. Feed the SXGA-mode, 75- Hz
black signal.
2. Select the following group and
subject.
Group : OUTPUT3
Subject : SH-PHASE

Using the set's control switch or the remote
controller’s button, make sure the characters
OUTPUT3 are not blurry with no ghost
image on the screen. If anything blurry or a
ghost image appears onscreen, readjust the
setting in the range of 7-9.

6

RGB counter-voltage
adjustment

1. Feed the SXGA-mode, 60- Hz,
counter-voltage adjustment signal.
2. Select the following group and
subjects.
Group : OUTPUT3
Subject : RC (R)
GC (G)
BC (B)

• 

Using the set's control switch or the
remote controller’s button, adjust the
setting so that the flickering be
minimum.

• 

If there is a difference between the
centre and both sides on the screen,
adjust the setting to get both sides
equal to each other.

7

RGB tone reproduction
adjustment

1. Feed the Infocom Greyscale &
Colour Pattern signal.
2. Select the following group and
subject.
Group : OUTPUT1
Subject : G1-BLK

• 

Make sure the greyscale, shown below,
is visible up to the tone 251 (white) as
well as down to the tone 8 (black).

• 

If the white tone is out of spec, finely
adjust the G1-BLK setting.

8

RGB white balance
adjustment

1. Feed the 32-step greyscale signal.
(SXGA, 60 Hz)
2. Select the following group and
subjects.
Group : OUTPUT1
Subject : R1-BLK (R)
B1-BLK (B)

Adjust the R1-BLK and B1-BLK settings to
get the tone balance to optimum.

46

No.

Adjustment Items

Adjustment Conditions

Adjustment Procedures

9

Video horizontal centre
adjustment DLY checking

1. Feed the NTSC monoscope pattern
signal.
2. Group : VIDEO 2
Subject : N358-DLY (2)
N443-DLY (0)
PAL-DLY (0)
SECAM-DLY (0)
Make sure the settings are as above.
3. Then select the following group and
subject.
Group : VIDEO1
Subject : NTSC-H

Using the set's control switch or the remote
controller’s button, adjust the setting so that
the overscan be the same at right and left.

10

Video picture adjustment

1. Feed the split colour bar signal.
2. Select the following group and
subject.
Group : VIDEO1
Subject : PICTURE
3. Connect the oscilloscope between
pin (1) of P801 and GND.

Using the set’s control switch or the remote
controller’s button, adjust the setting so that
the amplitude between the black and 100%
white levels be 2.3 ± 0.02 Vp-p.

11

Video offset adjustment

1. Feed the colour bar signal with
base band. (ON-AIR not allowed
because of its too much noise.)
2. Select the following group and
subjects.
Group : VIDEO2
Subject : VROS (R)
VGOS (G)
VBOS (B)
Make sure there are some bit
dropouts on the screen.
If not, press the set’s control switch or
the remote controller’s mute button.
(Gamma correction is now set for the
adjustment process.)

Using the set's control switch or the remote
controller’s button, adjust the settings so that
the black signal has some bit dropouts.

12

Video AGC adjustment

1. Feed the split colour bar signal.
2. Select the following group and
subject.
Group : VIDEO1
Subject : AGC
Make sure there are some bit
dropouts on the screen.

Using the set’s control switch or the remote
controller’s button, adjust the setting so that
the 100% white signal has some bit-less.

13

Video tint adjustment

1. Feed the split colour bar signal.
Select the following group and
subject.
Group : VIDEO1
Subject : TINT
2. Connect the oscilloscope to pin (4)
of P801.

Using the set's control switch or the remote
controller's button, adjust the setting so that
the – (B–Y) waveform runs straight downhill.

47

No.

Adjustment Items

Adjustment Conditions

Adjustment Procedures

14

NTSC colour saturation
adjustment

1. Feed the split colour bar signal.
2. Select the following group and
subject.
Group : VIDEO1
Subject : N-COLOUR
3. Connect the oscilloscope to pin (1)
of P801.

Using the set’s control switch or the remote
controller’s button, adjust the setting so that
the amplitude between the 100% white and
red levels be 0.20 ± 0.02 Vp-p.

15

PAL colour saturation
adjustment

1. Feed the PAL colour bar signal.
2. Select the following group and
subject.
Group : VIDEO1
Subject : P-COLOUR
3. Connect the oscilloscope to pin (1)
of P801.

Using the set's control switch or the remote
controller’s button, adjust the setting so that
the amplitude between the 100% white and
red levels be 0.36 ± 0.02 Vp-p.

16

SECAM colour saturation
adjustment

1. Feed the SECAM colour bar signal.
2. Select the following group and
subject.
Group : VIDEO1
Subject : S-COLOUR
3. Connect the oscilloscope to pin (1)
of P801.

Using the set's control switch or the remote
controller’s button, adjust the setting so that
the amplitude between the 100% white and
red levels be 0.50 ± 0.02 Vp-p.

17

Video input panel signal
amplitude adjustment

1. Feed the NTSC 10-step signal.
2. Select the following group and
subjects.
Group : VIDEO2
Subject : R1-GAIN
B1-GAIN
3. Connect the oscilloscope to pin (1)
(for R) of P1001 and pin (3) (for G) of
P1001.
4. Similarly connect the oscilloscope
to the following for the B colour.
Pin (5) of P1001 for B
Pin (3) of P1001 for G

• 

Select R1-GAIN. Adjust the setting so
that the R signal amplitude and the G
signal amplitude be the same.

• 

Do the same for the B colour.

48

No.

Adjustment Items

Adjustment Conditions

Adjustment Procedures

18

Video white balance
adjustment

1. Feed the NTSC monoscope pattern
signal.
2. Select the following group and
subjects.
Group : VIDEO2
Subject : R1-BLK
B1-BLK

Using the set's control switch or the remote
controller's button, adjust the setting so that
the white balance be the same as on the
monitor screen.

19

DVD contrast adjustment

1. Feed the 100% colour bar signal of
the 480I component signal to the G
(Y) input terminal on the BNC socket.
2. Select the following group and
subject.
Group : DVD
Subject : CONTRAST

Using the set's control switch or the remote
controller's button, adjust the setting so that
the 100% white signal has some bit
dropouts.

20

DVD tint adjustment

1. Feed the 100% colour bar signal of
the 480I component signal to the Y,
Pb and Pr input terminals on the BNC
socket. For the Y signal, feed the
sync signal only.
2. Select the following group and
subject.
Group : DVD
Subject : TINT
3. Connect the oscilloscope to pin (2)
of P801.

Using the set's control switch or the remote
controller’s button, adjust the setting so that
the (B–Y) waveform runs straight uphill.

21

DVD colour saturation
adjustment

1. Feed the 100% colour bar signal of
the 480I component signal to the Y,
Pb and Pr input terminals on the BNC
socket.
2. Select the following group and
subject.
Group : DVD
Subject : COLOUR
3. Connect the oscilloscope to pin (1)
of P801.

Using the set’s control switch or the remote
controller’s button, adjust the setting so that
the amplitude between the 100% white and
red levels be 0.10 ± 0.02 Vp-p.

22

DVD input panel signal
amplitude adjustment

1. Feed the 10-step signal to the G
(Y) input terminal on the BNC socket.
2. Select the following group and
subjects.
Group : DVD
Subject : R1-GAIN
B1-GAIN
3. Connect the oscilloscope to pin (1)
(for R) of P1001 and pin (3) (for G) of
P1001.
4. Similarly connect the oscilloscope
to the following for the B colour.
Pin (5) of P1001 for B
Pin (3) of P1001 for G

• 

Select R1-GAIN. Adjust the setting so
that the R signal amplitude and the G
signal amplitude be the same.

• 

Do the same for the B colour.