SAMSUNG SP43J7PF Service Manual
Troubleshooting
5. Troubleshooting
5-1 Convergence Misaligned
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Check the |
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Normal |
output voltage and waveform |
Abnormal |
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of CN802, CN203 on |
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the Convergence Board |
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Check HZ01 out pin |
Abnormal |
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(BV, BH, RV, |
RH, GV, GH) |
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1. |
Check F802, F855, |
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F805, F806 on |
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Normal |
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the SUB Board |
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2. |
Check the output |
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from H-BLK, V-BLK, |
Check the associated |
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Check Convergence |
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D1, D2, D3 on |
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circuitry |
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Module |
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the Main Board |
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Samsung Electronics |
5-1 |
Troubleshooting
5-2 No Sound
Check if CN601 is inserted
Normal
Check IC665 output pins 2,4
Abnormal
Check IC665 input pin 3
Normal
Check IC665
mute pin 5
Normal
Check IC665 output pins 7,11
Abnormal
Check IC601 input pins 35, 38
Abnormal
Check H006 input pins 15,17
Abnormal
Check ICV01
Input pins 49,51
Abnormal
Check H003
out Pins 1,2
Abnormal
Insert CN601
(Connector)
Normal
Check Speaker
Abnormal
Check F854 on the SUB Board
Abnormal
Check the mute circuit
Normal
Check IC665
Normal
Check Tone Control
Normal
Check the 3D Phonic
circuit
Normal
Check ICV01
5-2 |
Samsung Electronics |
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