Sony SDM-X52 Service Manual ▷ View online
SDM-X52(E)
1-7
1-7. LCD PANEL REMOVAL
2
LCD panel
1
Four screws
(+P 2.4X5)
1
Four screws
(+P 2.4X5)
SDM-X52(E)
2-1
SECTION 2
ADJUSTMENTS
2-1. Service Functions of Buttons in Front Panel
The following functions are available for servicing the set.
1.
To display the model information
Press the MENU button for five seconds or more in the ordinary power-on state,
and the following information is displayed on the screen:
- Model name
- Serial number
- Manufactured year and week
This function is described in the instruction manual also.
and the following information is displayed on the screen:
- Model name
- Serial number
- Manufactured year and week
This function is described in the instruction manual also.
2.
To display ETI (Elapsed Time Indicator)
Press the OK button for five seconds or more in the ordinary power-on state, and
the cumulative power-on time excluding the power-off and power saving state is
displayed on the screen.
the cumulative power-on time excluding the power-off and power saving state is
displayed on the screen.
3.
All mode recall
Press the POWER button with pressing the OK button in the power-off state, and
the user memory is completely cleared and the system is reset to the factory setting.
This reset is similar to RESET in the OSD menu, but differs from it in the
following:
- The NO SYNC AGING flag is cleared.
- LANGUAGE is set to ENGLIDH.
- INPUT is set to INPUT1: DVI-D.
the user memory is completely cleared and the system is reset to the factory setting.
This reset is similar to RESET in the OSD menu, but differs from it in the
following:
- The NO SYNC AGING flag is cleared.
- LANGUAGE is set to ENGLIDH.
- INPUT is set to INPUT1: DVI-D.
4.
To set the NO SYNC AGING flag
Press the POWER button with pressing the UP (
↑
) button in the power-off
state, and the NO SYNC AGING flag is set. In this setting, when the input with no
input signal is selected, the system goes into the AGING MODE.
The NO SYNC AGING flag is held until it is cleared. To clear the NO SYNC
AGING flag, go into the service mode and then set the AGING MODE to OFF, or
execute the all mode recall.
input signal is selected, the system goes into the AGING MODE.
The NO SYNC AGING flag is held until it is cleared. To clear the NO SYNC
AGING flag, go into the service mode and then set the AGING MODE to OFF, or
execute the all mode recall.
5.
To enter the service mode
Press the POWER button with pressing the UP (
↑
) and DOWN (
↓
)
buttons in the power-off state, and the system is set to the service mode. The service
mode will be explained later.
To exit from the service mode, turn off the power.
mode will be explained later.
To exit from the service mode, turn off the power.
6.
To copy EDID to the EEPROM and to clear ETI
Press the POWER button with pressing the UP (
↑
) and OK buttons in the
power-off state, and the data for the model information are copied to the EEPROM
for the internal microcontroller from EDID of INPUT2: HD15, and the model
information display is made correct.
When replacing the A board, this operation is required after writing EDID and at
the same time ETI is reset to 0.
for the internal microcontroller from EDID of INPUT2: HD15, and the model
information display is made correct.
When replacing the A board, this operation is required after writing EDID and at
the same time ETI is reset to 0.
7.
To enter the ISP mode
Turn on the MAIN POWER switch with pressing the DOWN (
↓
) button in the
main-power-off state, and the system enters the ISP mode. The POWER LED goes
off, and both input LED's 1 and 2 light on, and the picture disappears, and any
button becomes invalid.
In the ISP mode, the internal software can be updated with an external personal
computer using a special fixture.
To cancel the ISP mode, turn off the MAIN POWER switch.
off, and both input LED's 1 and 2 light on, and the picture disappears, and any
button becomes invalid.
In the ISP mode, the internal software can be updated with an external personal
computer using a special fixture.
To cancel the ISP mode, turn off the MAIN POWER switch.
SDM-X52(E)
2-2
2-2. Uses of Service Mode
1.
Turn off the power with the POWER button in the front panel. The red POWER
LED lights on.
LED lights on.
2.
Press the POWER button in the front panel with pressing the UP (
↑
) and
DOWN (
↓
) buttons, and the system enters the service mode.
When no signal is input to the selected input terminal, the following functions are
disabled.
disabled.
3.
Press the MENU button, and the main menu is displayed. Then go to page 2 of the
main menu with the UP (
main menu with the UP (
↑
) or DOWN (
↓
) button, then select the MAINTAIN icon
on the bottom line, and then press the OK button.
4.
In this menu screen, the version number and released date of the internal software
can be checked.
can be checked.
5.
The structure of the MAINTAIN menu is shown below.
The operation procedure is basically same as that of the ordinary user controls.
The function of each menu is explained in next section.
The function of each menu is explained in next section.
MAINTAIN
CONFIGURATION
CHIPS
EXIT
COLOR TEMP
INITIAL EEPROM
CLEAR ETI TIME
EEPROM TEST
RGB RESET
EXIT
AGING MODE
REGISTERS VALUE
9300K
6500K
EXIT
ON
OFF
CONTROL REG
EXIT
SUB-BRIGHTNESS
R
G
B
SUB-CONTRAST
R
G
B
EXIT
000~1FF
SDM-X52(E)
2-3
2-3. Functions of Service Mode
1.
COLOR TEMP
This is used for the white balance adjustment at color temperature 9300 K and 6500
K. The adjustment requires to be done for every input (INPUT1: DVI-D, INPUT1:
HD15, or INPUT2: HD15) by switching the input. The adjustment data is stored into
the register for respective inputs.
K. The adjustment requires to be done for every input (INPUT1: DVI-D, INPUT1:
HD15, or INPUT2: HD15) by switching the input. The adjustment data is stored into
the register for respective inputs.
2.
INITIAL EEPROM
This sets the data of the EEPROM to the default data. This operation is not required
usually.
usually.
3.
CLEAR ETI TIME
This resets the ETI (Elapsed Time Indicator) counter to 00000 H.
4.
EEPROM TEST
This tests writing and reading of the EEPROM.
5.
RGB RESET
This adjust the offset and gain of the input AD converter for the analog inputs
(INPUT1: HD15 and INPUT2:HD15). As these adjustments are common to both
inputs, perform them for either input. It is unnecessary for another input.
Execute the adjustments under the condition where the signal specified in "White
Balance Adjustment" is input.
(INPUT1: HD15 and INPUT2:HD15). As these adjustments are common to both
inputs, perform them for either input. It is unnecessary for another input.
Execute the adjustments under the condition where the signal specified in "White
Balance Adjustment" is input.
6.
AGING IN MODE
This sets and clears the NO SYNC AGING flag.
AGING MODE = ON:
AGING MODE = ON:
Sets the NO SYNC AGING flag.
AGING MODE = OFF:
Clears the NO SYNC AGING flag.
When the NO SYNC AGING flag is set and the input with no input signal is
selected, the system goes into the AGING MODE. The NO SYNC AGING flag is
held until it is cleared. To clear the NO SYNC AGING flag, go into the service mode
and then set the AGINGN MODE to OFF, or execute the all mode recall.
selected, the system goes into the AGING MODE. The NO SYNC AGING flag is
held until it is cleared. To clear the NO SYNC AGING flag, go into the service mode
and then set the AGINGN MODE to OFF, or execute the all mode recall.
7.
CONTROL REG.
This can check the data of the internal registers. This operation is not required
usually.
usually.
2-4. White Balance Adjustment
< Preparation >
(1) Measurement point : Center of screen
(2) Measurement distance : 50 cm
(3) Measurement angle : 90
(2) Measurement distance : 50 cm
(3) Measurement angle : 90
°
(4) Color analyzer (Minolta CS-1000 or equivalent)
(5) Signal generator (Astro Design VG-828D or equivalent)
Be sure to calibrate the analog RGB output level with 75
(5) Signal generator (Astro Design VG-828D or equivalent)
Be sure to calibrate the analog RGB output level with 75
Ω
termination.
1.
Service mode setting
Enter the service mode referring to step 1 and 2 of Section 2-2.
2.
Aging
Set the AGING MODE in the service mode to ON. Disconnect the signal input
terminal or select the input with no signal input, and the system goes into the
AGING MODE.
Execute aging for 30 minutes or more.
terminal or select the input with no signal input, and the system goes into the
AGING MODE.
Execute aging for 30 minutes or more.
3.
User control setting
Feed a signal to the selected input, and then execute reset in the menu screen. Then,
move the menu display position to avoid the measurement point. Or, set the
following for respective inputs.
move the menu display position to avoid the measurement point. Or, set the
following for respective inputs.
BACKLIGHT (Brightness of backlight) = 100
CONTRAST = 70
BRIGHTNESS = 50
Menu display position = not center of screen (Avoid the measurement point.)
(The setting of the menu display position is common to respective inputs.)
ECO = OFF (The setting of ECO is common to respective inputs.)
CONTRAST = 70
BRIGHTNESS = 50
Menu display position = not center of screen (Avoid the measurement point.)
(The setting of the menu display position is common to respective inputs.)
ECO = OFF (The setting of ECO is common to respective inputs.)
Do not change the above setting until the white balance adjustment is completed.
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