LG 34CB88, Руководство по обслуживанию, Страница: 9 / 17

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Only for training and service purposes
Insert HDMI Jack which is connected with PC for White Bal-
ance or equivalent device.
→
Total Assembly line should check whether the color
coordinate(x,y) data refer to below table were meet or not.
*Note : x,y coordinates are drifted about 0.007 after 30 mins
heat-run. So checking color coordinate within 5-min at
total assembly line, consider x,y coordinates might be
up to 0.007 than x,y target of each color temperature.
* Note : Manual W/B process
1) Power off => Power on (‘←’ 3 times, ‘→’ 1 time and push ‘
’)
2) and push the “←” or “→”.
3) In Service Menu.
* When doing Adjustment, Please make circumstance as
below.
4.3. DPM Operation check
■ Measurement Condition: 100 ~ 240 V @ 50/60Hz
(1) Set Input to DVI-D, DisplayPort, HDMI1, HDMI2
(2) Turn off the source device.
(3) Check DPM operation refer to the below table.
5. Signal composition for adjustment
5.1. I2C (100K BPS)
5.2. COMMUNICATION START
# Until ACK BIT goes LOW, Repeat it.
5.3. Command form.
Command form use DDC2AB standard communication
protocol.
a. LEN : DATA BYTE number to send.
b. CMD : Command language that monitor executes.
c. VAL : FOS DATA
d. CS : Dada’s CHECHSUM that transmit
e. DELAY : 50MS
f. A : Acknowledge
5.4. Screen adjust command (LENGTH = 84)
5.5. EEPROM Data Write
5.5.1 Siganl TABLE
LEN : 84h+Bytes
CMD : E8h
ADH : E2PROM Slave Address(A0,A2,A4,A6,A8,AA,AC,AE),
Not 00h(Reserved by Buffer To EEPROM)
ADL : E2PROM Sub Address(00~FF)
Data : Write data
Delay : 20ms
Color
Temperature
Cool 9,300 °K X=0.283 (±0.03)
Y=0.298 (±0.03)
<Test Signal>
Inner pattern
(255gray,80IRE)
Medium 8,000 °K X=0.295 (±0.03)
Y=0.305 (±0.03)
Warm 6,500 °K X=0.313 (±0.03)
Y=0.329 (±0.03)
Luminance
(cd/m²)
Cool Min : 170 <Test Signal>
Inner pattern
(255gray,80IRE)
Medium Min : 200
Warm Min : 260
Operating
Condition
Sync (H/V)
or Video
EUT
(MSPG6100)
LED
(SET)
Wattage
(W)
Sleep
mode
Off/Off Off White blinking 1.2W
Off
mode
- - Off 0.3
No. Adjustment contents CMD(h
ex)
ADR VAL(hex) Explanation
1 EEPROM ALL INITIA
L
E4 00 00 adjustment Initialization
2 EEPROM READ E7 Slave add At EEPROM Read
3 EEPROM WRITE E8 Slave add Data Write data at EEPROM
4 R GAIN 16 00 00-64
Tune Gain
5 G GAIN 18 00 00-64
6 B GAIN 00 00-64
7 BRIGHT(Backlight) 10 00 00-64 Tune Analog Bright
8 FACTORY RESET F0 00 0 Factory reset
9
AUTO_COLOR_ADJ
UST
F1 00 0
AUTO COLOR Tuning
0:Auto color
10
COLOR_MODE_CH
ANGE
F2
00
1 WARM(6500K)
2 COOL(9300K)
11 Elapsed time Clear E9 00 00
Aging off &Clear elapse
d time
12 Aging On/Off F3 00 FF/00
FF:ON / 00:OFF
13 Input Select F4
00 0xD0
1:DisplayPort
0x90
2:HDMI1
0x91
3:HDMI2
0xD1
4:Thunderbolt (UC98 o
nly)
14 SYSTEM RESET F5 00 00
RestartSystem
15 Select Language 68
00
0x00 ~ 0x0F
00:English,
01:German
02:French
03:Spanish
04:Italian
05:Swedish,
06:Finnish
07:Portuguese
08:Brazil
09:Polish
0A:Russian
0B:Greek
0C:Ukrainian
0D:Chinese
0E:Japanese
0F:Korean
EDID SN UPDATE 0x77
0
0x01~0x02
0x01 :HDMI1
0x02 :HDMI2
APD command 0xF7
00
0x00~0x01
0x00:OFF
0x01:ON
Module name
LM340UW3