LG LAS950M - Section 4: Wireless Subwoofer Part

4-1
SECTION 4
WIRELESS SUBWOOFER PART
CONTENTS
ONE POINT REPAIR GUIDE ............................................................................................................................ 4-2
1. NO POWER PROBLEM ......................................................................................................................... 4-2
2. POWER ON ERROR (12 V, 5 VA) ......................................................................................................... 4-4
3. POWER ON ERROR (3.3 VA, 3 V) ........................................................................................................ 4-5
4. WIRELESS CONNECTION .................................................................................................................... 4-6
CIRCUIT DIAGRAMS ........................................................................................................................................ 4-7
1. WOOFER SMPS CIRCUIT DIAGRAM ................................................................................................... 4-7
2. WOOFER AMP CIRCUIT DIAGRAM ...................................................................................................... 4-9
3. WOOFER KEY CIRCUIT DIAGRAM .................................................................................................... 4-11
PRINTED CIRCUIT BOARD DIAGRAMS ....................................................................................................... 4-13
1. WOOFER SMPS P. C. BOARD ............................................................................................................ 4-13
2. WOOFER AMP P. C. BOARD .............................................................................................................. 4-15
3. WOOFER KEY P. C. BOARD ............................................................................................................... 4-15