LG Electronics CT-29M65VE service manual Adjustment preparation, 1CA

(5)Open angle of the two tab of 6 pole magnet by isogonic angle and accord with vertical line of Red/Blue and Green.

(6)Maintain as angle of (5) and rotate the tab to accord with horizontal line. In case of twisted horizontal line,repeat adjustment of (3) ~ (5) remembering the movement of Red/Green/Blue color.

(7)Move the DY to best condition of convergence and attach the CPT to a rubber-chock for fixed DY.

5.Screen voltage adjustment

(1)Receive the PAL or SECAM(NTSC) signal into RF mode regardless of channel.

(2)If you press the “ADJ”button in LINE SVC mode(IN-START button),the LINE SVC mode changes to screen adjustment mode.

(3)Turn the Screen Volume of FBT to change luminance of White signal center as shown below.

(4)Press the EXIT TV/AV button to exit SVC mode.

6.White balance adjustment

NOTE : When adjusting white balance automatically,connect the adjustment JIG in SVC mode.(When pressing IN- START,MUTE button on remote control for adjustment orderly,it changes to SVC mode and screen displays “CUT OFF”.)

(1)Receive 100% white pattern.

(2)Adjust LOW LIght status(4.5FL) of CUT R,CUT B at CG:70.

(3)Adjust HIGH LIght status(35FL) of WDR R,WDR B at WDR G:380.

(4)Repeat above step (2) and (3) for the best condition each status of High Light and Low Light.

<Table 1> White Balance Color analyzer

Menu		EU				N-EU
X		288			268
Y		295			273
Color Temperature		9000oK			13000oK
<Table 2> White Balance Initial Data
		Menu	Range				DATA
LOW LIGHT		CR	0 ~ 511				70
		CG	0 ~ 511				70
		CB	0 ~ 511				70
HIGH LIGHT		WR	0 ~ 511				430
		WG	0 ~ 511				380
		WB	0 ~ 511				430
<Table 3> White Balance Initial Data
1. IC
	Name	Maker		Algorithm
VCD IC	VCT48xyi	Micronas
			0	F		0		0
EP_ROM	24C16	ST, ATMEL

2. White balance IIC Parameter

Program	TWBeng2.0			Program	TWBeng2.0	Speed		Delay
Vcd Slave		24C16	Eprom_Slave		AE	1		30
		R_Amp		R_Cut	B_Amp	B_Cut
Program		TWBeng2.0		TWBeng2.0	TWBeng2.0	TWBeng2.0
Sub Add		1C8		1C3	1CA	1C5
Start Bit		12		12	12	12
Stop Bit		4		4	4		4
Offset		0		0	0		0
Polarity		1		1	1		1
EP_Rom_S		7A7B		7475	7E7F	7879
Speed/ Plus	1		1		1		1

<CAUTION> W/B Program “Twbeng_v2.0”

-W/B adjustment after Cutoff

:Instart -> adj. -> mute(cutoff)-> tv/av(wb) Release key is EXIT key

-W/B adjustment

:Instart -> mute(cpuoff) ->

Release key is TV/AV key

7.Deflection setting Data Adjustment

7.1Adjustment preparation

(1)Tune the TV set to receive an Digital pattern(EU05CH).

(2)Deflection setting data adjustment is operate by SVC communicator.

(3)Enter the deflection mode by selection SERVICE1 key on SERVICE MENU after enter the adjustment mode by pressing LINE SVC MODE(IN-START KEY).

(4)Enter the deflection mode by pressing ADJUST key.

(5)Use the CH D ,E key to select adjustment item.

(6)Use the VOL F ,G key to increase/decrease data.

<Note>

(1)When adjusting a deflection,adjust N50Hz of PAL signal first and adjust a deflection at Normal 60Hz(NTSC).

(2)Adjust a deflection as shown below. PAL 4:3 -> NTSC 4:3

(3)After finishing deflection adjustment,press the EXIT key to exit in adjustment mode.

(4)Wide Models

After adjusting 16:9(50Hz), Readjust 14:9(50Hz) -> ZOOM(50Hz) -> 4:3(50Hz) -> 16:9(60Hz) -> 14:9(60Hz) -> ZOOM(60Hz) -> 4:3(60Hz).

7.2Adjustment

(1)VL(Vertical Linearity) adjustment:

Adjust the top & bottom size of inner circle to be equal.

(2) VA (Vertical Amplitude) adjustment:

Adjust so that the circle of a digital circle pattern should be located interval of 6~7mm from the effective screen of the CPT.

(3) SC (Vertical S correction) adjustment:

Adjust so that all distance between each lattice width of top/center/bottom are to be the same.

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