LG BP350 Service Manual

3-28
ONE POINT REPAIR GUIDE
2. LED DOESN’T LIGHT ON
Timer board doesn’t work.
2-1. 5.1 VA abnormal
2-1-1. Solution
Replace the IC150.
2-1-2. How to troubleshoot (Countermeasure)
1) Check the 5.1 VA of IC150 pin9 or pin10.
2) If 5.1 VA doesn’t come out, check the IC150 pin8 or pin13 (12 VA).
If there is no 12 VA, check adapter (refer to 1-1-1 solution).
3) If 12 VA is OK, 5.1 VA is abnormal, check the PWR_CTL is high
and if it’s high check C165, L152, C169, R169, R170, R171, C174, C175, C176, C177
and there’s no defective component, replace IC150.
4) If 5.1 VA is OK, but 5 V from IC150 pin 28 is abnormal, check C155, C156, R158.
If there are high and no another defective component, replace IC150.
5) After changing it, if the set is still not booting:
- Check 1.2 V/ 3.3 V/ 3.3 VA is normal. (please refer to other sections of this guide)
- Check Crystal X501 refer to item 3-5.
- Check NAND flash IC (IC602) refer to item 3-6.
- Check DDR IC (IC601) refer to item 3-7.
- Check MPEG IC (IC501) refer to item 3-8.
2-1-3. Service hint (Any picture / Remark)
IC150
< Main board top view >
IC 150

LG BP350 Specifications

General

Depth	195 mm
Width	270 mm
Height	43 mm
Weight	850 g
Full HD	Yes
Device type	Blu-Ray player
Aspect ratio	16:9
Product color	Black
Audio decoders	Dolby Digital, Dolby Digital Plus, Dolby TrueHD, DTS
Playback modes	Repeat
Disc types supported	BD-R, BD-RE, BD-ROM, CD, CD-R, CD-ROM, CD-RW, DVD, DVD+R, DVD+RW, DVD-R, DVD-RAM, DVD-RW
Playback disc formats	CD audio, SVCD, VCD
Supported video modes	1080p
Card reader integrated	No
USB 2.0 ports quantity	1
Audio formats supported	-
Video formats supported	AVC, AVCHD, H.264, MKV, MPEG2, MPEG4
Digital audio optical out	0
Analog signal format system	NTSC, PAL
Power consumption (standby)	0.5 W
Power consumption (typical)	12 W
Consumer Electronics Control (CEC)	SimpLink
Audio output channels	2.0 channels