ELECTRICAL ADJUSTMENTS
1. ADJUSTMENT PROCEDURE
NO. FUNCTIONNO. FUNCTION
Read and perform these adjustments when repairing the01 H POSI OSD23 BAK LIGHT CENT
circuits or replacing electrical parts or PCB assemblies.02 V POSI OSD24 BAK LIGHT MAX
03 R DRIVE(N)25 BAK LIGHT MIN
CAUTION04 R CUT OFF(N)26 BRIGHT CENT
05 G DRIVE(N)27 BRIGHT MAX
YUse an isolation transformer when performing any
06 G CUT OFF(N)28 BRIGHT MIN
service on this chassis.
07 B DRIVE(N)29 TINT
YBefore removing the anode cap, discharge electricity
08 B CUT OFF(N)30 SHARP CENTER
because it contains high voltage.09 R DRIVE(C)31 SHARP MAX
YWhen removing a PCB or related component, after10 R CUT OFF(C)32 SHARP MIN
unfastening or changing a wire, be sure to put the wire11G DRIVE(C)33 CONTRAST CENTER(N)
back in its original position.12 G CUT OFF(C)34 CONTRAST MAX(N)
13 B DRIVE(C)35 CONTRAST MIN(N)
YWhen you exchange IC and Transistor with a heat sink,
14 B CUT OFF(C)36 COLOR CENT
apply silicon grease on the contact section of the heat
15 R DRIVE(W)37 COLOR MAX
sink. Before applying new silicon grease, remove all the
16 R CUT OFF(W)38 COLOR MIN
old silicon grease. (Old grease may cause damages to
17 G DRIVE(W)39 CONTRAST CENTER(C)
the IC and Transistor).18 G CUT OFF(W)40 CONTRAST MAX(C)
19 B DRIVE(W)41 CONTRAST MIN(C)
Prepare the following measurement tools for electrical
20 B CUT OFF(W)42 CONTRAST CENTER(W)
adjustments.21 H POSI43 CONTRAST MAX(W)
22 V POSI44 CONTRAST MIN(W)
1. Patterm Generator
Fig. 1-2
On-Screen Display Adjustment
1.Set the VOLUME to minimum.
2. BASIC ADJUSTMENTS
2.Press the VOL. DOWN button on the set and the
channel button (9) on the remote control for more than2-1: WHITE BALANCE
2 seconds to display adjustment mode on the screen as
1.Place the set in Aging Test for more than 15 minutes.
shown in Fig. 1-1.
2.Receive the gray scale pattern from the Pattern
Generator.
3.Using the remote control, set the brightness and contrast
TV
to normal position.
FILL
4.Activate the adjustment mode display of Fig. 1-1 and
press the channel button (03) on the remote control to
select "R DRIVE(N)".
5.Press the CH. UP/DOWN button on the remote control to
select the "R CUT OFF(N)", "G DRIVE(N)", "G CUT
Function01 H POSI 340Step No.
OFF(N)", "R DRIVE(C)", "R CUT OFF(C)", "G DRIVE(C)",
Fig. 1-1
"G CUT OFF(C)", "R DRIVE(W)", "R CUT OFF(W)", "G
3.Use the Channel UP/DOWN button or Channel buttonDRIVE(W)" or "G CUT OFF(W)".
(0-9) on the remote control to select the options shown6.Adjust the VOL. UP/DOWN button on the remote control
in Fig. 1-2.to whiten the R CUT OFF(N), G DRIVE(N), G CUT
4.Press the MENU button on the remote control to endOFF(N), R DRIVE(C), R CUT OFF(C)", G DRIVE(C), G
the adjustments.CUT OFF(C), R DRIVE(W), R CUT OFF(W) G DRIVE(W)
5.To display the adjustment screen for TV, AV, CS, HD-and G CUT OFF(W), B DRIVE(W) and B CUT OFF(W) at
MI and PC mode, press the INPUT button on theeach step tone sections equally.
remote control. Press the VOL.DOWN button on the set7.Perform the above adjustments 5 and 6 until the white
and the channel (9) on the remote control for more thanachieved.
2 seconds.
D-1 |
ACEC
