LG TL-AT130M - Manual (Page 2)

TABLE OF CONTENTS
SECTION 1
SUMMARY
• SPECIFICATIONS ......................................................1-1
• LOCATION OF CUSTOMER CONTROLS .................1-2
• CRITICAL PARTS REPLACING TIME TABLE...........1-5
• CRITICAL PARTS DESCRIPTION .............................1-5
SECTION 2
CABINET & MAIN FRAME
EXPLODED VIEWS........................................................2-1
1. Cabinet and Main Frame Section ............................2-1
2. Packing & Accessory Section ..................................2-3
SECTION 3
ELECTRICAL
ELECTRICAL ADJUSTMENT PROCEDURES .............3-1
1. PG ADJUSTMENT..................................................3-1
ELECTRICAL TROUBLESHOOTING GUIDE ...............3-2
1. POWER(SMPS) CIRCUIT ......................................3-2
2. SERVO CIRCUIT....................................................3-4
3. Y/C CIRCUIT ..........................................................3-6
4. AUDIO CIRCUIT .....................................................3-9
5. SYSTEM/KEY CIRCUIT .........................................3-11
6. OSD CIRCUIT.........................................................3-12
BLOCK & CIRCUIT DIAGRAMS....................................3-13
1. OVERALL WIRING DIAGRAM ...............................3-13
2. POWER BLOCK DIAGRAM ...................................3-15
3. POWER CIRCUIT DIAGRAM .................................3-17
4. AUDIO BLOCK DIAGRAM......................................3-19
5. Y/C BLOCK DIAGRAM ...........................................3-20
6. A/V CIRCUIT DIAGRAM.........................................3-21
7. SYSTEM BLOCK DIAGRAM ..................................3-24
8. SYSTEM CIRCUIT DIAGRAM................................3-27
9. JACK CIRCUIT DIAGRAM .....................................3-29
10. KEY-BOARD CIRCUIT DIAGRAM..........................3-31
PRINTED CIRCUIT DIAGRAMS ....................................3-33
1. MAIN P.C.BOARD ..................................................3-33
2. KEY 1 P.C.BOARD .................................................3-35
3. KEY 2 P.C.BOARD .................................................3-35
4. JACK P.C.BOARD ..................................................3-35
SECTION 4
MECHANISM
SECTION 5
REPLACEMENT PARTS LIST
• Mechanical Section.....................................................5-1
• Electrical Section ........................................................5-3
NOTE) The table of contents for this section is edited
separately.