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1) Before replacing the PC I/F unit, write down the values for the parameters listed on the 2nd and 3rd pages of

the Adjustment Process A screen.
If the values for the parameters cannot be written down because the PC I/F unit is completely broken or for any
other reason, make all the adjustments in accordance with the paragraph for Adjustment procedure and
parameters, rather than the following procedures.  (End)
Set the parameters listed on the 2nd and 3rd pages of the Adjustment Process A screen to the values you have
written down.

1)  Analog adjustment

(1) Prior adjustment for AVC system chassis

(2) PAL signal adjustment

1

Destination check

1. Call the process adjustment mode.
2. Check that the destination is “Europe”.

2

AVC center 3.3V
adjustment

Connect DC voltmeter to
TP1702.

Adjust output voltage of DC/DC 5 V line to
3.3 V.
Adjusted value:  3.25~3.29 V

3

AVC center 2.5V
adjustment

Connect DC voltmeter to
TP1701.

Adjust output voltage of DC/DC 2.5 V line to
2.6 V.
Adjusted value:  2.60~2.64 V

1

Setup

1. Set colour system to “PAL”.
2. Select PAL source.

100% colour bar signal including 100% white, such
as split field colour bar

2

Tuner Y level
adjustment

1. Adjust TP1101 so that the Y signal without the

chroma component should be 1.00 ±0.05 Vp-p
(between the bottom of sync signal and the white
peak).

3

PAL Y CONTRAST
adjustment

1. Adjust TB1274_MAIN output (TP803) to

0.7 ±0.05 Vp-p.

4

PAL COLOR GAIN
adjustment

1. Adjust TB1274_MAIN

output (TP802) to
0.35 ±0.025 Vp-p.

5

MAIN CR GAIN PAL
adjustment

1. Adjust TB1274_MAIN output

(TP801) to 0.35 ±0.05 Vp-p.

6

MAIN CONTRAST
adjustment

Turn off the PEAK ACL control. Adjust the output
(TP815) of IC810 to have 1.1 ±0.05 Vp-p from the
pedestal level.

 Press the DUAL screen button.

Select the special DUAL screen settings for adjustment
(so that the same video source is reflected on MAIN/
SUB).

7

SUB PAL Y adjustment

1. Adjust TB1274_SUB output (TP806) to

0.9 ±0.05 Vp-p.

8

SUB PAL COLOR
GAIN adjustment

1. Adjust TB1274_SUB output (TP805) to

0.9 ±0.05 Vp-p.

0.35V

0.35V

(3) SECAM signal adjustment

(4) N358 signal adjustment

1

Setup

1. Set colour system to SECAM.
2. Select SECAM source.

100% colour bar signal including 100% white, such
as split field colour bar

2

SECAM Y CONTRAST
adjustment

1. Adjust TB1274_MAIN output (TP803) to

0.7 ±0.05 Vp-p.

3

SECAM COLOR GAIN
adjustment

1. Adjust TB1274_MAIN

output (TP802) to 0.35
±0.025 Vp-p.

4

MAIN CR GAIN
SECAM adjustment

1. Adjust TB1274_MAIN

output (TP801) to 0.35
±0.025 Vp-p.

0.35V

0.35V

1

Setup

1. Set colour system to N358.
2. Select N358 source.

100% SMPTE colour bar or similar colour bar
signal including 100% white.

2

N358 Y CONTRAST
adjustment

1. Adjust TB1274_MAIN output (TP803) to

0.7 ±0.05 Vp-p.

3

N358 COLOR GAIN
adjustment

1. Adjust TB1274_MAIN

output (TP802) to 0.35
±0.025 Vp-p.

4

MAIN CR GAIN N358
adjustment

1. Adjust TB1274_MAIN

output (TP801) to 0.35
±0.025 Vp-p.

0.35V

0.35V

5

N358 TINT adjustment

1. Adjust TB1274_MAIN output (TP802) so that

waveform becomes as illustrated below:

Smoothed

(5) Component 15k Hz signal adjustment

(6) Component HDTV signal adjustment

2.  Factory settings

(1) Data Copy

(2) Factory Setting

1

Setup

1. Select component 15k Hz.
2. Select component source.

100% colour bar signal including 100% white, like
split field colour bar

2

COMP 15k
CONTRAST
adjustment

Adjust TB1274_MAIN output (TP803) to 0.7 ±0.05 Vp-p.

3

COMP 15k COLOR
GAIN adjustment

Adjust TB1274_MAIN output
(TP802) to 0.35 ±0.025 Vp-p.

4

MAIN CR GAIN COMP
15k adjustment

Adjust TB1274_MAIN output
(TP801) to 0.35 ±0.025 Vp-p.

0.35V

0.35V

1

Setup

1. Input HDTV (1080i) component signal.
2. Select component source.

100% colour bar signal including 100% white, like
split field colour bar

2

COMP HDTV
CONTRAST
adjustment

Turn off the PEAK ACL control.
Adjust the output (TP815) of pin (11) of IC810 to have
1.1 ±0.05 Vp-p from the pedestal level.

1

DATA COPY

1. Using the adjustment key, set “ON” in the DATA

COPY line. Wait until “OFF” is displayed instead.
Finally turn off the power to quit the process
adjustment mode.

1

INDUSTRY INIT

Move the cursor to the INDUSTRY INIT line. Using the
Vol.UP key, turn off and on again, and press ENTER. "/
/////////" appears, telling that the program is now being
settings are complete. Be sure to wait until the sign
goes out.

(5) Component 15k Hz signal adjustment

(6) Component HDTV signal adjustment

2.  Factory settings

(1) Data Copy

(2) Factory Setting

1

Setup

1. Select component 15k Hz.
2. Select component source.

100% colour bar signal including 100% white, like
split field colour bar

2

COMP 15k
CONTRAST
adjustment

Adjust TB1274_MAIN output (TP803) to 0.7 ±0.05 Vp-p.

3

COMP 15k COLOR
GAIN adjustment

Adjust TB1274_MAIN output
(TP802) to 0.35 ±0.025 Vp-p.

4

MAIN CR GAIN COMP
15k adjustment

Adjust TB1274_MAIN output
(TP801) to 0.35 ±0.025 Vp-p.

0.35V

0.35V

1

Setup

1. Input HDTV (1080i) component signal.
2. Select component source.

100% colour bar signal including 100% white, like
split field colour bar

2

COMP HDTV
CONTRAST
adjustment

Turn off the PEAK ACL control.
Adjust the output (TP815) of pin (11) of IC810 to have
1.1 ±0.05 Vp-p from the pedestal level.

1

DATA COPY

1. Using the adjustment key, set “ON” in the DATA

COPY line. Wait until “OFF” is displayed instead.
Finally turn off the power to quit the process
adjustment mode.

1

INDUSTRY INIT

Move the cursor to the INDUSTRY INIT line. Using the
Vol.UP key, turn off and on again, and press ENTER. "/
/////////" appears, telling that the program is now being
settings are complete. Be sure to wait until the sign
goes out.