JVC HV-29LPZ/EE, HV-29LPZ/HK, HV-29LPZ/-A Adjustment, Checking Item, Rgb Blk, Def Pwb, Att On/Off

HV- 29LPZ

ADJUSTMENT

CHECKING ITEM

Item

Measuring	Test point	Adjustment part
instrument

Description

Check of B1	Signal	TP-91(B1)	1. RGB BLK	1.	Receive any broadcast.
Power Supply	Generator	TP-E(#)		2.	Press the ZOOM key and select the FULL mode.
		[X connector		3.	Select 2. V/C from the SERVICE MENU.
	DC voltmeter	on POWER		4.	Select 1. RGB BLK with function UP / DOWN key.
		DEF PWB]		5.	Press the function (		) key to find the cut off screen (Black
	Remote				screen).
	Control unit			6.	Connect a DC voltmeter to TP-91(B1) and TP-E(#).
				7.	Make sure that the voltage is DC139.9 ±2.0V.
				8.	Press the function (		) key to return to service menu.
Check of High	Signal	CRT anode	1. RGB BLK	1.	Receive any broadcast.
Voltage	Generator			2.	Press the ZOOM key and select the FULL mode.
		Chassis GND		3.	Select 2. V/C from the SERVICE MENU.
				4.	Select 1. RGB BLK with function UP / DOWN key.
	DC volunteer
				5.	Press the function (		) key to find the cut off screen (Black
					screen).
	Remote			6.	Connect a DC voltmeter to CRT ANODE and chassis GND.
									+1kV
	Control unit			7.	Make sure that the voltage is DC 31.5kV -1.5kV .
				8.	Press the function (		) key to return to service menu.
				*	Remove the probe before removing the earth clip.
Check of VCO	Remote		1. VCO	" Under normal conditions, no adjustment is required.
	control unit		2. ATT ON/OFF	"	Confirmation adjustment.
				1.	Select 1.IF from the SERVICE MENU.
				2.	Then select 1.VCO from the IF SERVICE MENU.
				3.	Receive any broadcast.
	IF SERVICE MENU
				4.	Check the MAIN arrow (				) position between the ABOVE
	1. VCO				REF. and BELOW REF.
	2. ATT ON/OFF			5.	Press the MENU (OK) key and receive any broadcast with PIP
					Button.
				6.	Check the SUB arrow (			) position between the ABOVE REF
	1-2 : SELECT	DISP : EXIT			and BELOW REF.
				*	The arrow (	) position means AFC voltage level.
				*	2. ATT ON/OFF : Generally Electric Field : OFF
				*		: Strong Electric Field : ON
					Change the MAIN and SUB by MENU/OK key .

VCO(CW) ****MHz

MAIN SUB

TOO HIGH

ABOVE REF

JUST REF

BELOW REF

TOO LOW

DISP : EXIT

20 No. 52012