LG 42PN450D, Руководство по обслуживанию

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- 11 - LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
* 2D HD EDID data
- 2D HD HDMI1 EDID data
- 2D HD HDMI2 EDID data
* Vender ID
* Checksum: Changeable by total EDID data.
4.7. GND & Hi-pot test
■ GND TEST = POWER CORD GND and SIGNAL CABLE
GND
■ Hi-pot TEST = POWER CORD GND and LIVE&NUETRAL
■ Test Process
1. Check the POWER CABLE and SIGNAL CABLE
insertion condition.
2. Connect the AV JACK Tester
3. Controller(GWS103-4) on
4. GND TEST(Auto)
- If Test is failed, Buzzer operate
- 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 operate
- If Test is passed, GOOD Lamp on and move to next
process automatically.
■ Checkpoint
(1) Test voltage
1) 3 Poles
- GND: 1.5KV/min at 100mA
- SIGNAL: 3KV/min at 100mA
2) 2 Poles
- SIGNAL: 3KV/min at 100mA
(2) TEST time: 1 second
(3) TEST POINT
1) 3 Poles
- GND Test = POWER CORD GND and SIGNAL
CABLE GND.
- Hi-pot Test = POWER CORD GND and LIVE &
NEUTRAL.
2) 2 Poles
- Hi-pot Test = Accessible Metal and LIVE & NEUTRAL.
(4) LEAKAGE CURRENT: At 0.5mArms
Input HEX
HDMI1 10
HDMI2 20
HDMI3 30
EDID C/S data 2D-HD
HDMI
check sum
(Hex)
Block 0 0x3E
Block 1 0x24(HDMI1)
0x14(HDMI2)