Daewoo DSC-3220E/3220L service manual Option

Service manual SC-150

3-3 Microcontroller con figuration : Option bits

These option bits are availa ble from Service mode. First find the OPTION control, and then use keys 0...7 on the remote keypad to control bits 0 to 7 respect ively. The table below shows the options a vailable ;

OPTION 1

	B7	B6	B5	B4	B3	B2		B1	B0
1	TOP text	FASTEXT	TUBE 4:3	AUTO 4:3		SVHS3	Tuner options
				switch to
	off	FLOF off				disable	00=Philips
				PANORAMA	X
							01=ALPS
	TOP text	FASTEXT
0			TUBE 16:9	AUTO 4:3		SVHS3	10=Philips (AGC intern)
	on	(FLOF) on		switch to 4:3		enable	11=DAEWOO

OPTION 2

	B7	B6	B5	B4	B3	B2	B1	B0
1				PICTURE	Normal I
				TILT on	brightness	See table below.
	Y	Y	Y
					Normal I
				PICTURE		OPTION 2 bits B2 B1 B0
0					brightness
				TILT off
					+5 steps

Set all the unused bits, markde 'X', to be 0 for future compatibility.

3-4 TV set Alignment

3-4-1- Local oscillator alignment

Tune a colour bar pattern. The Frequency of the signal carrier must be accurate (Max +/- 10khz deviation fron the nominal channel frequency).

Find "AFT" item in service mode.

Adjust the coil L150 to bring the cursor to central position : 32.

3-4-2- G2 alignment

-Tune a colour bar pattern.

-Find the "G2 - SCREEN" item in service mode.

-Adjust screen volume (on FBT) to bring the cursor to central position : 32.

3-4-3- White balance

-Select a dark picture and adjust RED BIAS and GRN BIAS to the desired colour temperature.

-Select a bright picture and adjust REC, GRN and BLUE GAIN to the desired dolour temperature.

3-4-4- Forcus

Adjust the Forcus volume (on FBT) to have the best resolution on screen.

3-4-5- Vertical geometry

Adjust V.LINEAR (linearity), S CORRECT

(S. Corrention), VERT SIZE (Vertical amplitude), VERT CENT (vertical centing) to compensate for vertical distortion.

-15-