JVC AV-25MXP6/V, AV-21MXP6/V „ Video 2 SET Component, Video Circuit, Composite White Balance

„VIDEO - 2 SET: COMPONENT

Item	Measuring		Test point			Adjustment part		Description
	instrument
H. POSITION	Signal				[4. DEF]		(1) Receive a PAL circle pattern signal to VIDEO-2
	generator				4. H-CENT			component terminal.
	Remote						(2)	Select VIDEO-2 SET from the MENU and set
								VIDEO-2 SET to COMPONENT.
	control unit						(3)	Select 4. DEF from the SERVICE MODE.
							(4)	Select <4. H-CENT>.
		C		D			(5)	Set the initial setting value of <4. H-CENT>.
							(6)	Adjust <4. H-CENT>to make "C=D".
							(7)	Press the [OK] key to memorize the set values.

4.9.5 VIDEO CIRCUIT

Item

Measuring

Test point

Adjustment part

Description

instrument

WHITE

Signal

[2. V/C]

COMPOSITE WHITE BALANCE

BALANCE

generator

2. CUTOFF (B)

(1)

Receive a PAL black and white signal (colour off).

(Low light)

2. CUTOFF (G)

(2)

Set the PICTURE MODE to BRIGHT.

Remote

(3)

Select 2. V/C from the SERVICE MODE.

control unit

SCREEN VR

(4)

Select <2. CUTOFF> (B) and (G).

[In HVT]

(5)

Set each value to initial setting value with the [4] / [7]

keys and [5] / [8] keys.

(6)

Turn the SCREEN VR fully counterclockwise, then

REMOTE CONTROL UNIT

slowly turn it clockwise to where a red, blue or green

colour is faintly visible.

1

2

3

(7)

Use the [4] / [7] and [5] / [8] keys to adjust so that

G CUTOFF (

)

the other 2 colours appear white.

4

5

6

(8)

Turn the SCREEN VR to where the single horizontal

line glows faintly.

B CUTOFF (

)

(9)

Press the [OK] key to memorize the set values.

7

8

9

B CUTOFF (

)

COMPONENT WHITE BALANCE

G CUTOFF (

)

(1)

Receive a PAL component black and white signal

(colour off).

(2)

Select VIDEO-2 SET from the MENU and set

VIDEO-2 SET to COMPONENT.

(3)

Adjust COMPONENT WHITE BALANCE in the

same way as "COMPOSITE WHITE BALANCE".

WHITE

Signal

[2. V/C]

(1)

Receive a PAL black and white signal (colour off).

BALANCE

generator

3. WDR (R)

(2)

Set the PICTURE MODE to BRIGHT.

(High light)

3. WDR (G)

(3)

Select 2. V/C from the SERVICE MODE.

Remote

3. WDR (B)

(4)

Select <3. WDR> (R), (G) and (B).

control unit

(5)

Set each value to initial setting value with the [4] to

[9] keys.

REMOTE CONTROL UNIT

(6)

Use the [4] to [9] keys to produce a white screen.

(7)

Press the [OK] key to memorize the set values.

1

2

3

4

G DRIVE (

)

5

6

R DRIVE (

)

B DRIVE (

)

7

8

9

R DRIVE (

)

B DRIVE (

)

G DRIVE (

)

1-36 (No.YA476)