Text preview for : HCM653W_9.pdf part of Samsung HCM653W 9 files, 190 total pages, service manual / data for Samsung projection TV receiver model #'s HCM653W, HCM5525W & HCM553W with P54A (REV. 3) chassis.
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Troubleshooting
5. Troubleshooting
5-1 Convergence Misaligned
Normal
Check the output voltage and waveform of CN801, 803, CNZ02 on the Convergence Board
Abnormal
Check CNZ01 out pin (BZ, BH, RV, RH, GV, GH)
Abnormal
Normal
Check the associated circuitry
Check Convergence Moudle
1. Check FD802S, FD855S, FD805S, FD806S On the Power Board 2. Check the output from H-BLK, V-BLK the Main Board
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 5 normal Check IC665 Mute pin 5 normal Check IC665 output pins 7, 11 Abnormal Check IC601 input pins 35, 38 Abnormal Check CNS01 input pins 5, 9 Abnormal Check IC703 input pins Abnormal Check CNS01 output pins 28
Abnormal Insert CN601 (Connector) normal Check Speaker
Abnormal Check FD854S on the Power Board Abnormal Check the Mute circuit
normal Check the Control
normal Check the Control
normal Check the Sound Module circuit normal Check IC703
5-2
Samsung Electronics
Troubleshooting
5-3 No Raster (Sound OK)
Normal
Check Heater
Check High Voltage Normal
Check CRT PCB pin 1 Normal Normal Check IC501, 531, 561 Abnormal Check CN501 (Connector) Normal Check CN01
Abnormal
Check Q473, R437A Normal
Check CN501 pins 1, 3, 5 Normal Check CN501 (Connector) Normal Check CN01 inpur pins 30, 31 Abnormal Check CNT02 input pins 19, 21 Abnormal
Check Q473 HV-REG Abnormal Check Q473, IC471 Abnormal Check HV-OUT BLOCK
Check Q472 input pin "G"(HV-DRIVER) Normal
Check HV-OUT BLOCK
Normal Check CNT02
Check IC02 input pin 24 Abnormal Check IC701 input pin 8 Abnormal Check CN01
Normal Check IC02
Normal
Check IC701
Samsung Electronics
5-3
MEMO
5-4
Samsung Electronics