Sony KDE-55XBR950 (serv.man2) Service Manual ▷ View online
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(1) From the main menu, select the voltage adjustment menu with the ↑ key or ↓ key and press the
<ENTER> key.
(2) From the voltage adjustment menu, adjust parameters in the order starting from Vs, Va, Vw, Vx, Vq,
Vu.
Select parameter with the ↑ key or ↓ key and adjust the parameter with the → key (increment) or ←
key (decrement). The adjustment values are shown on the voltage label that is attached to the
panel chassis.
key (decrement). The adjustment values are shown on the voltage label that is attached to the
panel chassis.
** Numbers are shown in decimal values.
Input the numeric value/dot and press the <ENTER> key and then press the <ENTER> key again
to set the adjustment value directly.
(3) Select RETURN with the ↑ key or ↓ key and press the <ENTER> key to return to the menu screen.
Main menu
Module information menu
POWER ON menu
Problem analysis menu
→
→
Voltage adjustment menu
Accumulated power-on time menu
Logic board change menu
EXIT
Voltage adjustment menu
→
→
Voltage adjustment / Vs[V] = :**.**
Voltage adjustment / Va[V] = :**.**
Voltage adjustment / Vw[V] = :**.**
Voltage adjustment / Vx[V] = :**.**
Voltage adjustment / Vq[V] =- :**.**
Voltage adjustment / Vu[V] = :**.**
Voltage adjustment / Vq[V] =- :**.**
Voltage adjustment / Vu[V] = :**.**
RETURN
EXIT
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6.2.3 Operation performance check items
(1) Environmental conditions
Temperature: Room temperature
Judgment distance: 1 meter from panel screen
Preheat run: 5 minutes with entire screen lit (white)
Judgment distance: 1 meter from panel screen
Preheat run: 5 minutes with entire screen lit (white)
(2) Test patterns:
PSEL
Push SW
Display pattern
Size
Details
H 0
White
screen
H 1
Cross
slash
Large
24
× 24
H 2
Vertical
stripe Every
other
dot
H
3
Horizontal stripe
Every other line
H
4
Color bars
Vertical bar
H_blk divided in 8
H
5
Gray scale
Horiz. direction
Every 3 dots
H
6
Color gray scale
Horiz. direction
Every 3 dots
H
7
Divided WINDOW
9 blocks
Follow the ROM
L
0
1% WINDOW
Center
Follow the ROM
L 1
Cross
slash Small
12
× 12
L 2
Vertical
stripe Every
other
cell
L
3
Horizontal stripe
Every 2 lines
L
4
Color bars
Horizontal bar
V_blk divided in 8
L
5
Gray scale
Vert. direction
Every 4 dots
L
6
Color gray scale
Vert. direction
Every 4 dots *2
L 7
Divided
WINDOW
16
blocks
Follow ROM *3
PDPGO SW
CPUGO SW
CPUGO SW
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(3) Judgment
Item
Test items
Test signal
Judgment criterion
1
Brightness non-uniformity
White screen (W)
Brightness non-uniformity in the form of stripes
must not be visible in vertical and horizontal
directions.
must not be visible in vertical and horizontal
directions.
2
Black noise
Horizontal gray scale
(Each color of R/G/B)
(Each color of R/G/B)
Rank 3 or higher in the 5-step evaluation.
<Rank>
5: No noise
4: Small noise is intermittently visible
3: Noise of 1 line is not visible continuously
2: Noise occurs continuously
1: Much noise occurs continuously
4: Small noise is intermittently visible
3: Noise of 1 line is not visible continuously
2: Noise occurs continuously
1: Much noise occurs continuously
3
Number of defects
4
Number of extra dots
5
Number of flickering dots
The entire screen lights
(Each color of W/R/G/B)
(Each color of W/R/G/B)
Conforms to Section 1.3.2 Display quality
specifications.
specifications.
However, when Delivery Specifications Sheets
are prepared for each client, the specifications
shown in the Delivery Specifications Sheet must
be met.
are prepared for each client, the specifications
shown in the Delivery Specifications Sheet must
be met.
(4) Power ON/OFF
*Power ON
Set both PDPGO-SW and CPUGO-SW to CN.
Set both PDPGO-SW and CPUGO-SW to CN.
*Power OFF
Set only PDPGO-SW to OFF.(The CPUGO-SW remains ON.)
Set only PDPGO-SW to OFF.(The CPUGO-SW remains ON.)
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6.2.4 Heat Run Test
(1) Set the module by following the same procedure as that for Problem Analysis in Section
4.7.
(2) From the main menu, select the POWER ON menu with the ↑ key or ↓ key and press
the <ENTER> key.
(3) From the POWER ON menu, select Internal pattern generation with the ↑ key or ↓ key
and press the <ENTER> key. When you press the → key, the main power of the
module is turned on. (When you press the ← key, the main power is turned off.)
module is turned on. (When you press the ← key, the main power is turned off.)
Main menu
POWER ON menu
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