ELECTRICAL ADJUSTMENTS

1. ADJUSTMENT PROCEDURE

Read and perform these adjustments when repairing the circuits or replacing electrical parts or PCB assemblies.

CAUTION

•Use an isolation transformer when performing any service on this chassis.

•When removing a PCB or related component, after unfastening or changing a wire, be sure to put the wire back in its original position.

•When you exchange IC and Transistor with a heat sink, apply silicon grease (YG6260M) on the contact section of the heat sink. Before applying new silicon grease, remove all the old silicon grease. (Old grease may cause damage to the IC and Transistor).

Prepare the following measurement tools for electrical adjustments.

1.Pattern Generator

2.BASIC ADJUSTMENTS

On-Screen Display Adjustment

1.Set the VOLUME to minimum.

2.Press the VOL. DOWN button on the set and the channel button (9) on the remote control for more than

2 seconds to display adjustment mode on the screen as shown in Fig. 2-1.

TV

AUTO

01 H POSI OSD

346

Fig. 2-1

3.Use the UP/DOWN button or Channel button (0-9)on the remote control to select the options shown in Fig. 2-2.

4.Press the MENU button on the remote control to end the adjustments.

5.To display the adjustment screen for AV, CS, HDMI mode, press the INPUT button on the remote control to set to the AV, CS, HDMI mode. Press the VOL.DOWN button on the set and the channel (9) on the remote control for more than 2 seconds.

NO.

FUNCTION

NO.

FUNCTION

01

H POSI OSD

22

H POSI 60Hz

02

V POSI OSD

24

V POSI 60Hz

03

R DRIVE (N)

25

BAK LIGHT CENT

04

R CUTOFF (N)

26

BAK LIGHT MAX

05

G DRIVE (N)

27

BAK LIGHT MIN

06

G CUTOFF (N)

28

BRIGHT CENT

07

B DRIVE (N)

29

BRIGHT MAX

08

B CUTOFF (N)

30

BRIGHT MIN

09

R DRIVE (C)

31

TINT

10

R CUTOFF (C)

35

CONTRAST CENTER

11

G DRIVE (C)

36

CONTRAST MAX

12

G CUTOFF (C)

37

CONTRAST MIN

13

B DRIVE (C)

38

COLOR CENT

14

B CUTOFF (C)

39

COLOR MAX

15

R DRIVE (W)

40

COLOR MIN

16

R CUTOFF (W)

63

CONTRAST 40

17

G DRIVE (W)

64

BRIGHT (3F54)

18

G CUTOFF (W)

65

CONTRASR (3F54)

19

B DRIVE (W)

66

SRC TOP

20

B CUTOFF (W)

67

DFEA VIMGVT

Fig. 2-2

2-1: WHITE BALANCE

1.Place the set in Aging Test for more than 15 minutes.

2.Receive the gray scale pattern from the Pattern Generator.

3.Press the INPUT button on the remote control to set to the AV mode.

4.Using the remote control, set the brightness and contrast to normal position.

5.Activate the adjustment mode display of Fig. 1-1and press the channel button (03) on the remote control to select “R DRIVE (N)”.

6.Press the UP/DOWN button on the remote control to

select the “R CUTOFF (N)”, “B DRIVE (N)”, “B CUTOFF (N)”, “R DRIVE (C)”, “R CUTOFF (C)”, “B DRIVE (C)”, “B CUTOFF (C)”, “R DRIVE (W)”, “R CUTOFF (W)”, “B DRIVE (W)” and “B CUTOFF (W)”.

7.Adjust the RIGHT/LEFT button on the remote control to whiten the R CUTOFF (N), B DRIVE (N), B CUTOFF (N), R DRIVE (C), R CUTOFF (C), B DRIVE (C), B CUTOFF (C), R DRIVE (W), R CUTOFF (W), B DRIVE (W) and B CUTOFF (W) at each step tone sections equally.

8.Perform the above adjustments 5 and 6 until the white color is looked like a white.

D-1

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HP LC3260N manual Electrical Adjustments, Adjustment Procedure
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