Troubleshooting

Samsung Electronics 5-1

5. Troubleshooting

5-1 Convergence Misaligned

Normal

Abnormal

AbnormalCheck the

output voltage and waveform of CN802, CN203 on

the Convergence Board

Check HZ01 out pin (BV, BH, RV, RH, GV, GH)

Check the associatedcircuitry

Check ConvergenceModule

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

5-2 No Sound

Troubleshooting

5-2 Samsung Electronics

Abnormal

Normal

Check IC665 input pin 3

Check Speaker

Normal

Check IC665output pins 2,4

Check if CN601 is inserted

Check IC665mute pin 5

Abnormal

Check F854 onthe SUB Board

Normal

Check IC665output pins 7,11

Abnormal

Check the mute circuit

Normal

Check IC601input pins 35, 38

Check IC665

Abnormal

Check H006input pins 15,17

Normal

Check the 3D PhoniccircuitAbnormal

Check ICV01Input pins 49,51

Normal

Check ICV01

Abnormal

Abnormal

Insert CN601(Connector)

Abnormal

Check H003out Pins 1,2

Normal

Normal

Check Tone Control

Troubleshooting

Samsung Electronics 5-3

5-3 No Raster (Sound OK)

Normal

Normal

Check High Voltage

Check IC501, 531,561

Normal

Check Heater

Check CN501pins 1,3,5

Abnormal

Check CN501(Connector)

Normal

Check CN501(Connector)

Normal

Check H007

Normal

Check H007input pins 3,4

Check ICV01

Abnormal

Check ICV01 inputpin 48

Normal

Check H009

Abnormal

Check H009input pin 1

Normal

Check ICV01

Abnormal

Abnormal

Abnormal

Check H004

Check CRT PCB pin 1

Normal

Check ICV01input pin 50

Abnormal

Normal

Check CN402 inputpin 12 (HV-DRIVER)

Check H401 CN402HV-REG

Normal

Check H401(OUT BLOCK)

Abnormal

Check H401,IC471

Abnormal

Abnormal

Check H401 R437A

Check H401

MEMO

5-4 Samsung Electronics