Sony SDM-X73 / SDM-X93 Service Manual ▷ View online
– 9 –
SDM-X73/X93 (E)
BLOCK DIAGRAM
ADC
Analog(R/G/B)
D
VI(TMDS)
In
v
e
rter
Output
(4Lamp)
EEPR
OM
(EDID)
EEPR
OM
(System)
LVDS
P
anel
Vcc
Regulator
Regulator
L/R * 3
L/R
V
OL/MUTE
KEY
DVI-D
D-Sub X2
Filter
EEPR
OM*2
(EDID)
MST9151A
3.3V
3.3V
2.5V
2.5V
5V
5V
SN74L
V4052A
MTV412PLCC
TD
A7496L
14V
14V
D
VI Rx
LAMP Connector
A
udio in
LIPS
OSD
Scaling
Pre-Amp
PLL
LVDS
Tx
+
– 10 –
SDM-X73/X93 (E)
LIPS Board Block Diagram
EMI
COMPONENTS
LINE
100 ~ 240V
INPUT RECTIFIER
AND FILTER
ENERGY
TRANSFER
OUTPUT RECTIFIER
AND FILTER
12V
5V
GND
SIGNAL
COLLECTiON
PHOTO
INVERTER CIRCUIT
High Voltage output
12V
-COUPLER
ISOLATION
PWM CONTROL
CIRCUIT
HVDC
100KHz
PRIMARY
SECONDARY
50 ~ 60Hz
– 11 –
SDM-X73/X93 (E)
ADJUSTMENT
1. Procedures of how to go to service mode.
1) Enter the service mode of this unit by turning on
the power while pressing and holding the “
r” key
simultaneously.
2) Press “MENU” key——MAINTAIN.
3) Press “OK” key to enter the service menu.
4) Select the desired function.
5) Press the “MENU” key to exit OSD.
6) Turn off the power and then turn on it again. The
3) Press “OK” key to enter the service menu.
4) Select the desired function.
5) Press the “MENU” key to exit OSD.
6) Turn off the power and then turn on it again. The
monitor then enters the normal mode.
To enter the service again, repeat the procedure
described above.
To enter the service again, repeat the procedure
described above.
Note
W/B readjustment is required after the panel, board
and microcomputer are replaced. However, be sure to
perform aging for more than 30 minutes for RGB reset
before W/B adjustment.
W/B readjustment is required after the panel, board
and microcomputer are replaced. However, be sure to
perform aging for more than 30 minutes for RGB reset
before W/B adjustment.
2. Setup
1) Prepare timing and pattern data for a signal
generator according to the Sony timing
specifications.
specifications.
2) Connect a monitor video cable to the signal
generator.
3) Put Color Analyzer(ex. CA-110) 50cm away from
generator.
3) Put Color Analyzer(ex. CA-110) 50cm away from
the monitor, specify it vertically in the center of
the display, and adjust the focus to the optimum
level using an eyepiece.
the display, and adjust the focus to the optimum
level using an eyepiece.
4) Put the monitor and Color Analyzer(ex. CA-110)
in a light-shielded room.
5) Set up [SERVICE MODE] of the monitor.
3. Operation
Data is manually set to improve the productivity. The
brightness, contrast, and backlight are set to 50, 70
and 100 respectively. After that, the default data of
the color temperature to be adjusted is set.
brightness, contrast, and backlight are set to 50, 70
and 100 respectively. After that, the default data of
the color temperature to be adjusted is set.
4. Warm up time
Warm up for 30 minutes before performing any
adjustment.
adjustment.
5. Adjustment for White Balance
a. Display SMPTE at SXGA/60Hz(Input level
0.73V).
b. Set up [SERVICE MODE].
c. Click “INITIAL EEPROM” and again setup Service
Mode.
d. Click “WHITE BALANCE” and then select “AUTO”.
0.73V).
b. Set up [SERVICE MODE].
c. Click “INITIAL EEPROM” and again setup Service
Mode.
d. Click “WHITE BALANCE” and then select “AUTO”.
6. 9300K color adjustment
a. Select “9300K” in “COLOR TEMP” and enter.
b. Use a 35%(89Gray) IRE white video field in the
primary mode.
c. Adjust “SUB CONTRAST “ to secure the color
temperature.
d. Press “MENU” key to exit adjust mode.
b. Use a 35%(89Gray) IRE white video field in the
primary mode.
c. Adjust “SUB CONTRAST “ to secure the color
temperature.
d. Press “MENU” key to exit adjust mode.
7. 6500K color adjustment
a. Select “6500K” in “COLOR TEMP” and enter.
b. Repeat the adjustment procedure as steps b to d
at 9300K.
b. Repeat the adjustment procedure as steps b to d
at 9300K.
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SDM-X73/X93 (E)
EXPLODED VIEW
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