Electrical Adjustments - Toshiba 15SLDT2 Service Manual

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 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
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. 1-1.
PAL
01 OSD
H POSI
Function
3. Use the PAGE UP/DOWN button or Channel button
(0-9) on the remote control to select the options shown
in Fig. 1-2.
4. Press the MENU button on the remote control to end
the adjustments.
5. To display the adjustment screen for TUNER, AV and
DVD mode, press the INPUT button on the remote
control to set to the TUNER, AV and DVD mode.
6. Press the VOL.DOWN button on the set and the
channel (9) on the remote control for more than 2
seconds.

ELECTRICAL ADJUSTMENTS

TUNER
4:3
130
Step No.
Fig. 1-1
NO. FUNCTION
01 OSD H POSI
02 OSD V POSI
03 R DRIVE(N)
04 R CUTOFF(N)
05 G DRIVE(N)
06 G CUTOFF(N)
07 B DRIVE(N)
08 B CUTOFF(N)
09 R DRIVE(C)
10 R CUTOFF(C)
11 G DRIVE(C)
12 G CUTOFF(C)
13 B DRIVE(C)
14 B CUTOFF(C)
15 R DRIVE(W)
16 R CUTOFF(W)
17 G DRIVE(W)
18 G CUTOFF(W)
19 B DRIVE(W)
20 B CUTOFF(W)
21 H POSI
22 H POSI MAX
23 H POSI MIN
2. BASIC ADJUSTMENTS
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. 1-1 and
press the channel button (03) on the remote control to
select "R DRIVE(N)".
6. Press the PAGE UP/DOWN button on the remote
control to select the "R DRIVE(N)", "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)" or
"B CUTOFF(W)".
7. Adjust the LEFT/RIGHT button on the remote control to
whiten the R DRIVE(N), 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 6 and 7 until the white
achieved.
D-1
NO. FUNCTION
24 V POSI
25 V POSI MAX
26 V POSI MIN
27 BACKLIGHT CENTER
28 BACKLIGHT MAX
29 BACKLIGHT MIN
30 BRIGHT CENTER
31 BRIGHT MAX
32 BRIGHT MIN
33 TINT CENTER
34 CONTRAST CENTER
35 CONTRAST MAX
36 CONTRAST MIN
37 CONTRAST 40
38 COLOR CENTER
39 COLOR MAX
40 COLOR MIN
41 TEXT H POSI
42 TEXT V POSI
43 FLICKER ADJ
Fig. 1-2