Read LG 32LS3500 / 32LS3510 (CHASSIS:LA25A) Service Manual online
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4.1. ADC Calibration
4.1.1. Overview
▪ ADC adjustment is needed to find the optimum black level
and gain in Analog-to-Digital device and to compensate RGB
deviation
4.1.2. Equipment & Condition
(1) Protocol: RS-232C
(2) Inner Pattern
- Resolution : 1080p(Comp)
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level : 0.7±0.1 Vp-p
4.1.3. Adjustment
4.1.3.1. Adjustment method
- Connect to Jig by using RS-232, adjust Component
4.1.3.2. Adj. protocol
Protocol
CMD 1
CMD 2
Data 1
Data 2
Remark
Enter
adj
mode
a
a
00
00
When
transfer
the ‘Mode
In’,Carry
the com-
mand.
Start
ADC adj
a
d
00
10
Automati-
cally adjust-
ment (Use
internal
pattern)
4.1.3.3. Manual ADC process using Service Remocon
After enter Service Mode by pushing “ADJ” key, execute “ADC
Adjust” by pushing “►” key at “ 0. ADC CALIBRATION ”.
0. TOOL OPTION1
1. TOOL OPTION2
2. TOOL OPTION3
3. Country Group
1. TOOL OPTION2
2. TOOL OPTION3
3. Country Group
4. ADC CALIBRATION
5. W/B ADJUST
6. EDID D/L (PCM)
7. SUB B/C ADJUST
6. EDID D/L (PCM)
7. SUB B/C ADJUST
※
Manual ADC Confirmation using Service Remocon. After
enter Service Mode by pushing “INSTART” key,
ADJUST ADC (COMPONENT) : OK
4.2. EDID Download
4.2.1. Overview
▪ It is a VESA regulation. A PC or a MNT will display an
optimal resolution through information sharing without any
necessity of user input. It is a realization of “Plug and Play”.
4.2.2. Equipment
(1) Since EDID data is embedded, EDID download JIG, HDMI
cable and D-sub cable are not need.
(2) Adjust by using remote controller.
4.2.3. Download method (using DFT)
PC(for communication through RS-232C), UART baud rate:
115200 bps
Command : aa 00 00 (Start Factory mode)
Command : ae 00 10 (Download All EDID)
Command : aa 00 90 (End of Factory mode)
4.2.4. Download method (using Service Remocon)
(1) Press Adj. key on the Adj. R/C,
(2) Select EDID D/L menu.
(3) By pressing Enter key, EDID download will begin
(4) If Download is successful, OK is display, but If Download is
failure, NG is displayed.
(5) If Download is failure, Re-try downloads.
※
※
Caution: When EDID Download, must remove RGB/HDMI
Cable.
(6) EDID Write confirmation
EDID D/L (PCM)
HDMI1 : OK
HDMI2 : OK
HDMI1 : OK
HDMI2 : OK
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