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Troubleshooting
5. Troubleshooting
5-1 Convergence Misaligned
Normal
Check the output voltage and waveform of CN802, CN203 on the Convergence Board
Abnormal
Check HZ01 out pin (BV, BH, RV, RH, GV, GH)
Abnormal 1. Check F802, F855, F805, F806 on the SUB Board 2. Check the output from H-BLK, V-BLK, D1, D2, D3 on the Main Board
Normal
Check the associated circuitry
Check Convergence Module
Samsung Electronics
5-1
Troubleshooting
5-2 No Sound
Check if CN601 is inserted
Abnormal Insert CN601 (Connector) Normal
Normal Check IC665 output pins 2,4 Abnormal
Check Speaker
Check IC665 input pin 3
Abnormal Check F854 on the SUB Board Abnormal
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
5-2
Check the mute circuit
Normal
Check IC665
Normal
Check Tone Control
Normal Check the 3D Phonic circuit Normal
Check ICV01
Samsung Electronics
Troubleshooting
5-3 No Raster (Sound OK)
Normal
Check Heater
Abnormal
Check High Voltage
Check CRT PCB pin 1
Abnormal
Normal Check CN501 pins 1,3,5 Normal Check CN501 (Connector) Abnormal Check H007 input pins 3,4 Abnormal Check ICV01 input pin 48 Abnormal Check H009 input pin 1 Normal
Normal Check H401 CN402 HV-REG Abnormal Check H401, IC471
Check H401 R437A
Normal Check CN402 input pin 12 (HV-DRIVER)
Check IC501, 531,561
Abnormal Check CN501 (Connector) Normal
Normal
Abnormal Check H401 Check H401 (OUT BLOCK)
Check H007
Normal
Check ICV01
Normal
Abnormal Check ICV01 input pin 50 Abnormal Check H004
Check H009
Normal
Check ICV01
Samsung Electronics
5-3
MEMO
5-4
Samsung Electronics