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1.7. 1.8. 1.9. 1.10.
Use remote Control Unit for all types of function check and ensure OK. Check the words display condition. Shock test and make sure the picture and sound are not distorted and shifted. Use strong and weak signal to check the colour picture condition. After adjust the signal level to 35-40 dB and the colour should not gone. The picture and sound must be OK. At 60 dB the picture should not have snow noise. 1.11. Ensure the factory mode setting are set. Set-off the factory mode function and last switch off the TV set. 1.12. All the �NG� sets must send for repairing and recording for reference. 1.13. Check the AV input and output the picture and sound must be OK.
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RELIABILITY AGING TEST:2.1. 1st lot of production sets. Sampling 20 sets for aging 7 days continues test with colour signal in. Normal production sets must be age for 1 day.
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MECHANICAL INSPECTION:3.1. Inspect all glue are firmly placed. 3.2. Check all screws are tightened, no missing and loose. 3.3. Check all the connectors are fully located onto the chassis base. 3.4. Check all the safety components are firmly located onto the chassis and no damage. 3.5. The TV internal side should not see any excess metal materials. 3.6. Check all the cable and wire are OK in-used. 3.7. Check the FBT and switching transformers not high mounting. The big capacitor are not slanting and high mounting. HIGH POTENTIAL TESTING:4.1. Set the mega-meter is set in position.(Insulation tester) 4.2. Set the meter to DC500V. 4.3. Use the meter probe onto the tuner body and the power cord on connector socket. 4.4. Switch on the button and test the insulation performance and the reading at 2/3 position. 4.5. Insulation spec must over 9.0 Mohm. if not reject. 4.6. Note: Everyday work check the high pot. Condition as 3100V, 10 mA, 5 sec are OK.
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5. SAFETY CHECK:5.1 High voltage checking. Use high pot tester and set the tester to 3100V, 10mA and ensure the AC/DC switch is in AC position. Set the tester to 10mA and timer to 5 sec. Test all naked metal of the TV and ensure no arcing and sparking. 5.2 Checking methods. 5.2.1. connect the power cord into power socket. 5.2.2. the high pot tester gun pointed at metal part of TV set body. 5.2.3. switch on the switch to test the high electric power. 5.2.4. connect with high voltage within 5 second and remove the tester gun point.
Model No: CT-21TF9A_21TF9C_21TF9CP_21TF9CP(IKD)_21TF9CP(SKD)_21TF9CP(M)_21TF9N_21TF9R Version 1.0
