LG FA162 Service Manual

3-3
ONE POINT REPAIR GUIDE
2. SPEAKER NO AUDIO OUTPUT
No audio output problem occurs when you power on the unit.
2-1. Solution
Reassemble AMP IC heat-sink, replace IC101.
2-2. How to troubleshoot (Countermeasure)
1) Reassemble AMP IC heat-sink (heat-sink screw must be assembled tightly).
2) Still NG, please check CN901 Pin10 (12 V), Pin1, 2, 3, 4 (28 V).
3) If it is not appear Vcc, change SMPS board assembly.
4) After changing it, if Vcc is still NG, check CN901 Pin12 (P-CTRL).
5) CN901 Pin12 (P_CTRL) is not appear, change μ-com IC (IC101).
2-3. Service hint (Any picture / Remark)
< MAIN board top view >
< SMPS board top view >
< MAIN board top view >
CN901
HEATSINK
IC101

LG FA162 Specifications

General

Karaoke	No
Speaker type	-
RMS rated power	160 W
Number of speakers	2
Equalizer	Yes
Tuner type	Digital
Supported radio bands	AM, FM
Preset stations quantity	50
Type	Home audio micro system
Product color	Black
Playback disc formats	CD audio
Audio formats supported	MP3, WMA
USB 2.0 ports quantity	1
Apple docking compatibility	Not supported
Power source	AC