Daewoo BLT-32U10A, Service Manual

Page: 2 / 60

Contents
1.Safety Precaution 3
2.Product Specification 4
2-1.Product Specification 4
2-2.Available Input Signal 5
3.Block Diagram 6
4.Description of Each Block 7
4-1.Overview 7
4-1-1.SCART1 RGB 8
4-1-2.SCART2_CVBS 9
4-1-3.AV3_S-VIDEO 9
4-1-4.COMPONENT_Y Pb Pr 10
4-1-5.HDMI 11
4-1-6.PC 11
4-1-7.Sound I2S 13
4-1-8.Sound Output 14
4-2.POWER PCB 14
4-2-1.Input Requirements 14
4-2-2.Output Voltage and Current 15
4-2-3.Ripple and Noise 16
4-2-4.Connectors 17
5.SERVICE MODE 19
6.Main PCB Trouble Diagnosis 20
6-1.Main PCB Trouble Diagnosis 20
6-1-1.Common checking process when “No signal or No raster” 20
6-1-2.When No Sound 27
6-1-3.When Control Key does not operate 29
6-1-4.When Remote Controller does not operate 30
6-2.POWER PCB 32
7.Trouble Diagnosis 33
7-1.Facts you must know when Diagnosis or Repairing 33
7-2.Typical Symptoms of PCB problem or bad connection 34
8.Exploded View 35
9.Service Part List 46
10.Circuit Diagram 54
-2-