JVC HD-52Z575 Adjustment Procedure Optical Block / Drive Circuit, Lens Focus, Projection Lens

4.7 ADJUSTMENT PROCEDURE
4.7.1 OPTICAL BLOCK / DRIVE CIRCUIT
Item	Measuring	Test point	Adjustment part		Description
	instrument
LENS FOCUS	Hexagon		FOCUS knob	(1)	Take out the FRONT PANEL, SPEAKER GRILL
adjustment	wrench		[PROJECTION LENS]		(L / R), CENTER PANEL and cushions.
				(2)	Display the MENU screen.
				(3)	Loosen the FOCUS LOCK screw.
		Projection lens		(4)	Adjust the FOCUS knob so that the center screen
					may become the best focus.
				(5)	Fix the focus lock screw by using the Hexagon
					wrench.
				• On this occasion, hold the FOCUS knob with your left
					hand.
FOCUS				(6)	Confirm the whole focus of the best screen
				(7)	Install the FRONT PANEL, SPEAKER GRILL (L / R).
knob
					BODY COVER and cushions.
	Focus lock screw
DRIVE	Remote			• Use the inner RGB box pattern.
CONVERGENCE control unit				(1)	Set the [SLEEP TIMER] key to 0 min.
adjustment				(2)	Press the [DISPLAY] key and the [VIDEO STATUS]
					key simultaneously.
				(3)	Press the [9] key to display the RGB box pattern.
		(Fixed)		(4)	Select the R mode by pressing the [DISPLAY] key.
				(5)	Adjust the R mode to setting as same as G mode by
		(Adjust)	(Adjust)		pressing the [CH ]+ / [CH -] key.
		(R)(G)(B)		(6)	Select the B mode pressing by the [DISPLAY] key.
				(7)	Adjust the B mode to setting as same as G mode by
					pressing the [VOL] - / [VOL +] key.
				(8)	Check to see that the cross pattern is white. If the
					cross pattern is not white, readjust (5) to (6).
(Adjust)	(R)			Note
(Fixed)	(G)			• G mode : FIXED mode (Can not remove)
(Adjust)	(B)			•	Setting data : Memorized at once.
Cross pattern
Adjustment		R
COLOR mode
		RGB BOX PATTERN
		[REMOTE CONTROL UNIT KEY FUNCTION]

	INPUT 2	4		5	6
	V2
	INPUT 3	7		8	9
	V3
	INPUT 4			0	RETURN+
	V4	TUNE			TV
	DIGITAL-IN	THEATER			VIDEO
		PRO			STATUS
	D-IN
SLEEP TIMER :	SLEEP TIMER DISPLAY SOUND				LIGHT
		+
R / B data reset /	MUTING		CH		C.C.
SERVICE MENU setting					C.C.
	VOL		OK	VOL
VOL - :
R / B move to Left side			CH
by 1 pixel	VCR CHANNEL		VCR / DVD		BACK
	MENU
	PREV	NEXT	POWER		TV / VCR
MENU :	REW	PLAY			FF
(Return to normal MENU)	REC		STOP	PAUSE
	OPEN CLOSE			STILL PAUSE

9 : RGB BOX PATTERN

DISPLAY : OSD ON/OFF select : RBRGB

CH + : R / B up position 1 pixel

VOL +: R / B move to right side by 1 pixel

BACK: Return to

SERVICE MENU

CH - : R / B Down position by 1 pixel

(No.YA092B)1-29