Adjustment Instruction - LG 17LS5R Service Manual

1. Application Range
These documents is applied to 17" 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.
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-
110), Pattern Generator (MSPG-925L or Equivalent), DDC
Adjustment Jig equipment, SVC remote controller
3. Main PCB check process
3.1. Download
1) Execute ISP program "Mstar ISP Utility" and then click
"Config" tab.
2) Set as below, and check the following tabs.
Port type - Choose the your port type, Normally "LPT1" or
"LPT2.
Speed - Choose the speed from 70 to 99.
JIG - Choose the your JIG type, Normally "Mstar" or "LGE".
3) Click "Read" tab, and then load download file(XXXX.bin) by
clicking "Read".
4) Click "Auto" tab and set as below, and then click "Run".

ADJUSTMENT INSTRUCTION

5) After downloading, check "OK" message.
( 4 )
f i l ex x x .bi n
* APC - After Manual-Insert, executing APC
3.2. ADC Process
(1) PC input ADC
1) Auto RGB Gain/Offset Adjustment
(a) Convert to PC in Input-source
(b) Signal equipment displays.
Output Voltage : 730 mVp-p
Impress Resolution XGA(1024x768@60Hz)
Pattern:gray pattern that left & right is black and
center is white signal(Refer below picture)
(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".
3.3. Function Check
: Check Input and Signal items (cf. work instruction)
(1) TV
(2) AV1 (SCART)
- Input the SCART-RGB signal and check the display.
(MSPG-925F Model: 232, Pattern;12)
(3) AV2 (CVBS/ S-Video)
(4) H/P Sound Output
* Display and Sound check is executed by Remote control.
- 9 -
( 6 ) ........ OK
( 5 )