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LG MAX221UB Service Manual
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2-11
6. AUX ERROR CORRECTION FLOW CHART
AUX no sound?
OK
Something wrong with the AUX?
YES
JK903, IC601(7, 9), CN971(19, 20, 21),
CN402(4, 5, 6)
NO
Checked the AUX
Signal input?
YES
See the Sound Error correction Process.
NO
Checked the
E-VR & Power AMP?
YES
19
21
Table of Contents
Default Chapter
1
Service Manual
1
Table of Contents
2
Section 1 Summary
3
Servicing Precautions
3
Esd Precautions
4
Specifications
5
Location of Users Controls
6
How to Setting the Option Code
7
Firmware Upgrade Method
8
How to Connect Audio Set to Power Supply
9
Section 2 Electrical
10
Electrical Troubleshooting Guide
10
System Control Error Correction Flow Chart
10
Sound Error Correction Flow Chart
13
Display Error Correction Flow Chart
16
Tuner Error Correction Flow Chart
17
Usb Error Correction Flow Chart
18
Aux Error Correction Flow Chart
20
Waveforms
21
Circuit Voltage Chart
22
INTERNAL BLOCK DIAGRAM of Ics
23
Ic601 (Bd3702Fv)
23
Ic801 (Lv5693P)
24
Pin Description
25
Ic804 (Tb2931Hq)
26
Wiring Diagram
28
Block Diagrams
29
Main Block Diagram
29
Front Block Diagram
30
Block Diagrams
30
Electrical Block Diagram
31
Circuit Diagrams
32
Main_1 Circuit Diagram
32
Main_2 Circuit Diagram
33
Front Circuit Diagram
34
Printed Circuit Board Diagrams
35
Main P.C.board
35
Front P.C.board
36
Exploded Views
38
Cabinet and Main Frame Section
38
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Owner's Manual
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LG MAX221UB Specifications
General
Brand
LG
Model
MAX221UB
Category
Receiver
Language
English
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