No Booting - LG FA162 Service Manual

4. NO BOOTING

After you turn on the unit and displayed message in the following order (HELLO
or USB) on VFD, it will not display other message on VFD, and it will not boot-up normally.
4-1. Solution
Replace X500.
4-2. How to troubleshoot (Countermeasure)
1) Please check the soldering status of 12 MHz crystal (X500).
2) Please check the frequency of 12 MHz crystal (X500).
3) If the crystal doesn't oscillate, replace X500.
4) After changing it, if the set is still not booting, replace MAIN board assembly.
4-3. Service hint (Any picture / Remark)
ONE POINT REPAIR GUIDE
X500
< MAIN board top view >
3-5
VOL XX CD