LG HR832T Service Manual page 87

When you turn on your set, it will display "HELLO" or "WAIT" on front panel, and it
will not boot-up normally.
3-3. IC600 ~ IC603
3-3-1. Solution
Replace IC600~IC603 on main board.
3-3-2. How to troubleshoot (Countermeasure)
1) Please check 1.5 V of C591.
2) Check DDR3_VREF of C619, C639, C659, C679, DDR3_VREF must be 0.75 V.
If DDR3_VREF is not 0.75 V, check the R575 and R576.
2) If it doesn't work even only one and IC201, IC202, IC203 are no problem,
IC600, IC601, IC602, IC603 (DDR memory) must be changed.
3) After changing it, if the set is still not booting :
- Check BCM7632 IC (IC500) refer to item 3-4.
3-3-3. Service hint (Any picture / Remark)
ONE POINT REPAIR GUIDE
< MAIN board bottom view >
< MAIN board top view >
3-72
DDR3_VREF
IC603
IC602
IC601
IC600