LG RN7 - Page 46

3-19
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ELECTRICAL TROUBLESHOOTING GUIDE
2. MCS PART CHECK
YES
YES
YES
YES
YES
MCS PART CHECK
OK
Refer to SMPS troubleshooting.
Check and change IC204.
X501: 32.768 kHz, X500: 24 MHz
Check the operation.
Check and change IC202, IC205.
NO
NO
NO
Check if voltage
of CN201 pin11, 12: 12 V.
Check if IC204
have DVCC_3.3V output.
Check if IC202, IC205
have 3.3 VA & 1.2 VA output.