Read LG 55LP1M-WC (CHASSIS:CL-80) Service Manual online
- 12 -
1. Coverage
Apply to monitor that is made or do standard here upon and
manufacture in monitor factory this standard.
manufacture in monitor factory this standard.
2. Appointment
2.1 Adjustment can must follow, and confer with design part
and change order in order designated.
2.2 Power : Free Voltage
2.3 Input signal : based engineering specification
2.4 pre operating : over 30 min
2.5 Adjust equipment : White balance equipment (CA-110/CA-
2.3 Input signal : based engineering specification
2.4 pre operating : over 30 min
2.5 Adjust equipment : White balance equipment (CA-110/CA-
210), Display adjust equipment (VG-828 or VG848)
Oscilloscope, PC (Pentium level) , TV/AV Pattern
Generator & 55" LCD TV.
Oscilloscope, PC (Pentium level) , TV/AV Pattern
Generator & 55" LCD TV.
HDCP Adjusting Jig equipment.
3. Adjustment
3.1 Overview
Use factory automation equipment and adjust automatic
movement. But, do through handwork adjust in error
occurrence.
3.2 Adjustment order
3.2.1 Adjustment Line process
■ENTER SERVICE ADJUSTMENT MENU.
■Connect input signal to 15pin D-sub.
■Adjust ready : Adjust command normally action existence
■Connect input signal to 15pin D-sub.
■Adjust ready : Adjust command normally action existence
and nonexistence and mode action state.
■Checking.
■Confirm that normally gray color is embodied inputing 256
■Confirm that normally gray color is embodied inputing 256
gray scale patterns.
3.2.2 Total Assembly Line
■Ready : Heat-run during 120 minutes in state with signal.
■Connect input signal to 15pin D-sub.
■Before adjust default value : Contrast Outgoing
■Connect input signal to 15pin D-sub.
■Before adjust default value : Contrast Outgoing
condition, Brightness Outgoing condition
3.2.3 Each mode horizontal/Verticality screen position,
Clock, Clock Phase Adjustment.
■There is no special factory mode adjust.
When power ON u-com is default data wright at the
adjustment line.
#Caution) That keep power-on more than 10 seconds
after power-on first time
■EEPROM contents read to compare at the adjustment
line.
3.2.4 Color coordinates adjustment and Luminance
adjustment. (input D-sub Analog )
3.2.4.1 Color coordinates adjust ready.
■When each color coordinates & Black level adjust.
■Contrast : outgoing condition
■Contrast : outgoing condition
Brightness : outgoing condition
■Signal Generator
Output Voltage : 700 mVp-p
Output Mode : #13 ( WXGA 60 Hz) mode Setting.
■Before adjustment command "start preset
adjustment" next start adjustment
3.2.4.2 Black level adjustment (Bias Adjustment.)
■Input black pattern none SOG signal.
■Input command AUTO_COLOR_ADJUST(0xF1),
■Input command AUTO_COLOR_ADJUST(0xF1),
0x00 after adjustment.
■After wait about 2 second, confirm the massage
"ok",confirm 0xAA the address 0x00 of EEPROM
0xA0 again adjust.(because auto adjustment fail)
3.2.4.3 PRESET 1 (9300 K) Color coordinates adjustment
and confirmation (Gain Adjustment)
■Input full white pattern none SOG signal.
■Input command AUTO_COLOR_ADJUST(0xF1),
■Input command AUTO_COLOR_ADJUST(0xF1),
0x01after adjustment.
■After wait about 3 second, confirm the massage "ok",
and, confirm 0xAA the address 0x01 of EEPROM
0xA0.
■I f display the massage "FAIL" or not 0xAA the
address 0x01 of EEPROM 0xA0 again adjust.
(because auto adjustment fail)
3.2.4.4 PRESET 2 (6500 K) Color coordinates adjustment
and confirmation
■The input is Full White Pattern
■None adjustment process.
■It sends an instruction The AUTO_MODE_CHANGE
■None adjustment process.
■It sends an instruction The AUTO_MODE_CHANGE
(0xF2), 0x02
■Auto stored 6500K R = 9300K R, 6500K G = 9500K
G - 10, 6500K B = 9300K B- 40.
■Confirm x= 0.313±0.030, y=0.329±0.030
ADJUSTMENT INSTRUCTION
Click on the first or last page to see other 55LP1M-WC (CHASSIS:CL-80) service manuals if exist.