Read LG 15LS1R (CHASSIS:LP68A) Service Manual online
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1. Application Range
These documents is applied to 15" LCD TV(chassis : LP68A)
2. Designation
1) The adjustment is according to the order which is
designated and which must be followed, according to the
plan which can be changed only on agreeing.
plan which can be changed only on agreeing.
2) Power Adjustment : Free Voltage
3) Magnetic Field Condition : Nil.
4) Input signal Unit : Product Specification Standard
5) Reserve after operation : Above 30 Minutes
6) Adjustment equipments: Color Analyzer(CA-210 or CA-
3) Magnetic Field Condition : Nil.
4) Input signal Unit : Product Specification Standard
5) Reserve after operation : Above 30 Minutes
6) Adjustment equipments: Color Analyzer(CA-210 or CA-
110), Pattern Generator (MSPG-925L or Equivalent), DDC
Adjustment Jig equipment, SVC remote controller
Adjustment Jig equipment, SVC remote controller
3. Main PCB check process
* APC - After Manual - Insert, executing APC
3.1. Download
1) Execute ISP program “Mstar ISP Utility” and then click
“Config” tab.
2) Set as below, and then click “Auto Detect” and check “OK”
message.
If display “Error”, Check connect computer, jig, and set.
If display “Error”, Check connect computer, jig, and set.
3) Click “Connect”tab. If flash memory is detected normally,
this message is displayed.
MX25L4005(Flash Memory)
MX25L4005(Flash Memory)
4) Click “Read” tab, and then load download file(XXXX.bin) by
clicking “Read”.
5) Click “Auto” tab and set as below, and then click “Run”.
6) After downloading, check “OK” message.
6) After downloading, check “OK” message.
3.2. ADC Process
(1) PC input ADC
1) Auto RG Gain/ Offset Adjustment
(a) Convert to PC in Input-source.
(b) Signal equipment displays.
(b) Signal equipment displays.
- Output Voltage : 730 mVp-p
- Impress Resolution XGA (1024 x 768 @ 60Hz)
- Pattern : gray pattern that left & right is black and
- Impress Resolution XGA (1024 x 768 @ 60Hz)
- Pattern : gray pattern that left & right is black and
center is white signal.(Refer below picture)
(Model : 60, Pattern : 28 at MSPG925L)
(Model : 60, Pattern : 28 at MSPG925L)
(c) Adjust by commanding AUTO_COLOR_ADJUST
(0xF1) 0x00 0x02 instruction.
2) Confirmation
(a) We confirm whether “0x8C” address of EEPROM
“0xB4” is “0xAA” or not.
(b) If “0x8C” address of EEPROM “0xB4” isn’t “0xAA”,
we adjust once more.
(c) We can confirm the ADC values from “0x00~0x05”
addresses in a page “0xB4”.
(2) Manual ADC process(using service remote control)
: After enter Service Mode by pushing “INSTART” key,
execute “Auto-RGB” by pushing “_” key at “Auto-RGB”.
ADJUSTMENT INSTRUCTION
(2) OK
(1)
(5)
(5)
(6) .......... OK
(4)
filex x x .bin
Auto Color Balance
Auto-RGB
To set
Red Offset
xxx
Green Offset
xxx
Blue Offset
xxx
Red Gain
xx
Green Gain
xx
Blue Gain
xx
Reset
To set
3)
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