Emerson 6420FE service manual Convergence Adjustment, Figures

17. Convergence Adjustment

Purpose: To obtain proper convergence of red, green and blue beams.

Symptom of Misadjustment: If Convergence Adjust- ment is incorrect, the edge of white letters may have color edges.

Test Point	Adj. Point	Mode	Input
	C.P. Magnet		Dot Pattern
	(RB),
---	C.P. Magnet	---	or
	(RB-G),		Crosshatch
	Deflection Yoke
Tape	M. EQ.	Spec.
---	Pattern	See below.
	Generator
	Figures
	CRT
	COIL SCREW PURITY RB	RB-G
		RING LOCK
		SCREW
DY WEDGE
		C.P. MAGNET CLAMPER
	C.P. MAGNET
	COIL CLAMPER
	DEFLECTION YOKE		Fig. 6
	C.P. MAGNET (RB)
	R		R
	G		G
	B		B
	C.B. MAGNET (RB-G)		Fig. 7
	RB
		RB	G
	G		Fig. 8

1.Loosen the Ring Lock and align red with blue dots or Crosshatch at the center of the screen by rotat- ing (RB) C.P. Magnets. (See Fig. 7)

2.Align red / blue with green dots at the center of the screen by rotating (RB-G) C.P. Magnet. (See Fig. 8)

3.Paintlock the C.P. Magnets after adjustment.

4.Remove the DY Wedges and slightly tilt the De- flection Yoke horizontally and vertically to obtain the best overall convergence.

5.Fix the Deflection Yoke by carefully inserting the DY Wedges between CRT and Deflection Yoke.

5-7 L2401EA