Read LG 50PS70-UG (CHASSIS:PU91B) Service Manual online
- 10 -
ADJUSTMENT INSTRUCTIONS
(2) RS-232C Command used during auto-adj.
Ex) wb 00 00 -> Begin white balance auto-adj.
wb 00 10 -> Gain adj.
ja 00 ff -> Adj. data
jb 00 c0
...
...
ja 00 ff -> Adj. data
jb 00 c0
...
...
wb 00 1f -> Gain adj. complete
*(wb 00 20(Start), wb 00 2f(End)) -> Off-set adj.
*(wb 00 20(Start), wb 00 2f(End)) -> Off-set adj.
wb 00 ff -> End white balance auto-adj.
(3) Adj. Map
- Applied model: [32LG70-UA] /[42LG70-UA] / [47LG70-
UA] / [52LG70-UA]/ [47LG90-UA]
7-5. Adj. Method
(1) Auto adj. method
1) Set TV in adj. mode using POWER On Key
2) Zero calibrate probe then place it on the center of the
2) Zero calibrate probe then place it on the center of the
Display
3) Connect Cable(RS-232C)
4) Select mode in adj. Program and begin adj.
5) When adj. is complete (OK Sign), check adj. status per
4) Select mode in adj. Program and begin adj.
5) When adj. is complete (OK Sign), check adj. status per
mode (Warm, Medium, Cool)
6) Remove probe and RS-232C cable to complete adj.
O
Adj. must begin w/ command “wb 00 00”, and end w/ ”wb
00 ff” and adj. offset if needed.
(2) Manual adj. method
Dynamic contrast : off
Dynamic color : off
OPC : Off
Energy saving mode : Off
Dynamic color : off
OPC : Off
Energy saving mode : Off
1) Set TV Picture Mode to Standard and in Advanced
Control, set Dynamic Contrast and Color ‘Off’.
2) Set TV in adj. mode using POWER On Key
3) Press ADJ key —> EZ adjust using adj. R/C
4) Using CH + / - KEY, select 10.TEST PATTERN then
3) Press ADJ key —> EZ adjust using adj. R/C
4) Using CH + / - KEY, select 10.TEST PATTERN then
press Enter to place in HEAT RUN mode and wait for
30 minutes.
30 minutes.
4) Zero calibrate the probe of Color Analyzer, then place it
on the center of LCD module within 10 cm of the
surface.
surface.
5) Press ADJ key —> 7. White-Balance then press the
cursor to the right (KEY
G
)
(When
G
is pressed Full White internal pattern will be
displayed)
6) One of R Gain / G Gain / B Gain should be fixed at 192,
and the rest will be lowered to meet the desired value.
7) Adj. is performed in COOL, MEDIUM, WARM 3 modes
of color temperature
O
If internal pattern is not available, use HDMI input. In EZ
Adj. menu 7.White Balance, you can select one of 3
options: None, Inner, HDMI. Default is inner. By
selecting HDMI, you can adjust using HDMI signal.
options: None, Inner, HDMI. Default is inner. By
selecting HDMI, you can adjust using HDMI signal.
O
Adj. condition and cautionary items
1) Lighting condition in surrounding area Surrounding
lighting should be lower than 10 lux. Try to isolate
adj. area into dark surrounding.
adj. area into dark surrounding.
2) Probe location
- PDP: Color Analyzer (CA-100, CA-100+, CA210)
probe should be firmly attached to the Module
- LCD: Color Analyzer (CA-210) probe should be
within 10cm and perpendicular of the module
surface (80°~ 100°)
surface (80°~ 100°)
- In case of LCD, B/L on should be checked using no
signal or Full white Pattern
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