LG FH6 Service Manual page 27

NO BOOTING WHEN YOU TURN THE UNIT ON, NO MESSAGE ON VFD
When you turn on your set, it will blank / no message on VFD, and it will not boot-up.
2-4. X501/ X502
2-4-1. Solution
Replace X501/ X502 on MAIN board.
2-4-2. How to troubleshoot (Countermeasure)
1) Please check the soldering status of X501 and X502.
2) Please check the 24 MHz frequency of X501, 32.768 kHz frequency of X502.
3) If the crystal doesn't oscillate, replace X501 or X502.
2-4-3. Service hint (Any picture/ Remark)
ONE POINT REPAIR GUIDE
X502 X502
(32.768 kHz) (32.768 kHz)
< MAIN board top view >
3-8
X501 X501
(24 MHz) (24 MHz)