LG LM-M1030A Service Manual page 28

IC301 Troubleshooting
Check the power supplying IC301 Pin 31, 32, 51, 88?
YES
Check the 5V of IC301 pin6
YES
Check the oscillation of X301
YES
Check the "Low" © "High" of IC301
pin88 when power supplied
YES
Replace IC301
IC501 Troubleshooting
Check the power supplied to IC501 pin 16
YES
Check the CLK Data of IC501 pin 2, 3
YES
Check the CONTROL function
YES
END
NO
NO
NO
NO
NO
NO
NO
Replace IC501
- 2-21 -
Refer to Power Circuit Troubleshooting
Check the P-SENS
Replace X301
Check the RESET circuit
Refer to Power Circuit Troubleshooting
Check the Data of IC301 Pin 13, 14
© TAPE FUNCTION)
(CD
Check the pattern
of IC301 & IC501
Refer to IC301
Troubleshooting