Electrical Adjustments - Toshiba 32W301PS 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
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.
PAL
01 OSD H POSI
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 ANALOG MENU button on the remote control
to end the adjustments.
5. To display the adjustment screen for TUNER, AV,
COMPONENT, HDMI and PC mode, press the INPUT
SELECT button on the remote control to set to the
TUNER, AV, HDMI and PC 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
16:9
21
Fig. 2-1
NO. FUNCTION
01 OSD H POSI
02 OSD V POSI
03 R DRIVE (N)
04 R CUT OFF (N)
05 G DRIVE (N)
06 G CUT OFF (N)
07 B DRIVE (N)
08 B CUT OFF (N)
09 R DRIVE (C)
10 R CUT OFF (C)
11 G DRIVE (C)
12 G CUT OFF (C)
13 B DRIVE (C)
14 B CUT OFF (C)
15 R DRIVE (W)
16 R CUT OFF (W)
17 G DRIVE (W)
18 G CUT OFF (W)
19 B DRIVE (W)
20 B CUT OFF (W)
21 H POSI
22 H POSI MAX
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 SELECT 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. 2-1 and
press the channel button (03) on the remote control to
select "R DRIVE (N)".
6. Press the CH. UP/DOWN button on the remote control to
select the "R CUT OFF(N)", "G DRIVE(N)", "G CUT
OFF(N)", "B DRIVE(N)", "B CUT OFF(N)", "R DRIVE(C)",
"R CUT OFF(C)", "G DRIVE(C)", "G CUT OFF(C)", "B
DRIVE(C)", "B CUT OFF(C)", "R DRIVE(W)", "R CUT
OFF(W)", "G DRIVE(W)", "G CUT OFF(W)", "B
DRIVE(W)" or "B CUT OFF(W)".
7. Adjust the VOL. UP/DOWN button on the remote control
to whiten the R CUT OFF(N), G DRIVE(N), G CUT
OFF(N), B DRIVE(N), B CUT OFF(N), R DRIVE(C), R
CUT OFF(C)", G DRIVE(C), G CUT OFF(C), B
DRIVE(C), B CUT OFF(C), R DRIVE(W), R CUT
OFF(W), G DRIVE(W), G CUT OFF(W), B DRIVE(W)
and B CUT OFF(W) at each step tone sections equally.
8. Perform the above adjustments 6 and 7 until the white
color is achieved.
D-1
NO. FUNCTION
23 H POSI MIN
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 POIS
42 TEXT V POIS
43 FLICKER ADJ
Fig. 2-2