Read LG 19LV2500-ZG / 19LV250A-ZG / 19LV250N-ZG / 19LV250U-ZG (CHASSIS:LD01R) Service Manual online
4.2. EYE-Q function check
Step 1) Turn on the TV set.
Step 2) Press “EYE” key on Adjustment remote control.
Step 3) Cover the Eye Q sensor at the front of set for 6 seconds.
Step 4) Check the value of Sensor Data. It must be below 10.
Step 2) Press “EYE” key on Adjustment remote control.
Step 3) Cover the Eye Q sensor at the front of set for 6 seconds.
Step 4) Check the value of Sensor Data. It must be below 10.
If not so, the Eye Q sensor may have some defect.
Change the Eye Q sensor.
Change the Eye Q sensor.
Step 5) Wait for 6 seconds after withdrawing form the Eye Q
sensor.
Step 6) Check the value of Backlight. It must rise.
If not so, the Eye Q sensor may have some defect.
Change the Eye Q sensor.
Change the Eye Q sensor.
* EYE-Q Test is except for LV23xx/LK33x/LK43x series.
4.3. Outgoing condition Configuration
- When pressing IN-STOP key by Service remote control, Red
LED are blinked alternatively. And then automatically turn
off. (Must not AC power OFF during blinking)
off. (Must not AC power OFF during blinking)
5. GND and HI-POT Test
5.1. GND & HI-POT auto-check preparation
Check the Power cable and Signal cable insertion condition
5.2. GND & HI-POT auto-check
(1) Pallet moves in the station. (Power cord / AV cord is tightly
inserted)
(2) Connect the AV JACK Tester.
(3) Controller (GWS103-4) on.
(4) GND Test (Auto)
(3) Controller (GWS103-4) on.
(4) GND Test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, execute next process (Hi-pot test).
- If Test is passed, execute next process (Hi-pot test).
(Remove A/V CORD from A/V JACK BOX.)
(5) HI-POT test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, GOOD Lamp on and move to next process
- If Test is passed, GOOD Lamp on and move to next process
automatically.
5.3. Checkpoint
(1) Test voltage
- GND: 1.5 KV / min at 100 mA
- SIGNAL: 3 KV / min at 100 mA
- SIGNAL: 3 KV / min at 100 mA
(2) TEST time: 1 second
(3) TEST POINT
(3) TEST POINT
- GND Test = Power cord GND and Signal cord GND.
- Hi-pot Test = Power cord GND and LIVE & NEUTRAL.
- Hi-pot Test = Power cord GND and LIVE & NEUTRAL.
(4) LEAKAGE CURRENT: At 0.5 mArms
6. Model name & Serial number D/L
• Press “Power on” key of service remote control.
(Baud rate : 115200 bps)
• Connect RS232 Signal Cable to RS-232 Jack.
• Write Serial number by use RS-232.
• Must check the serial number at the Diagnostics of SET UP
• Write Serial number by use RS-232.
• Must check the serial number at the Diagnostics of SET UP
menu(Refer to below.)
6.1. Signal TABLE
CMD : A0h
LENGTH : 85~94h (1~16 bytes)
ADH : EEPROM Sub Address high (00~1F)
ADL : EEPROM Sub Address low (00~FF)
Data : Write data
CS : CMD + LENGTH + ADH + ADL + Data_1 +…+ Data_n
Delay : 20ms
LENGTH : 85~94h (1~16 bytes)
ADH : EEPROM Sub Address high (00~1F)
ADL : EEPROM Sub Address low (00~FF)
Data : Write data
CS : CMD + LENGTH + ADH + ADL + Data_1 +…+ Data_n
Delay : 20ms
6.2. Command Set
* Description
FOS Default write : <7mode data> write
Vtotal, V_Frequency, Sync_Polarity, Htotal, Hstart, Vstart, 0,
Phase
Data write: Model name and Serial number write in EEPROM,.
Vtotal, V_Frequency, Sync_Polarity, Htotal, Hstart, Vstart, 0,
Phase
Data write: Model name and Serial number write in EEPROM,.
6.3. Method & notice
A. Serial number D/L is using of scan equipment.
B. Setting of scan equipment operated by Manufacturing
B. Setting of scan equipment operated by Manufacturing
Technology Group.
C. Serial number D/L must be conformed when it is produced
in production line, because serial number D/L is mandatory
by D-book 4.0.
by D-book 4.0.
- 12 -
CMD
LENGTH
ADH
ADL
DATA_1
. . .
Data_n
CS
DELAY
<Step 2>
<Step 5>
<Step 6>
<Step 3>
<Step 4>
No.
Adjust mode
CMD(hex)
LENGTH(hex)
Description
1
EEPROM WRITE
A0h
84h+n
n-bytes Write(n=1~16)
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