Genius GHT-511 Bedienungsanleitung

Service Manual

GHT-511 HOME THEATER

ServiceManual

Table of Contents

GHT-511 HOME THEATER.......................................................................................................0

Chapter 1. INTRODUCTION...........................................................................................................2

Function Block.............................................................................................................................2

Chapter 2. Troubleshooting Guide....................................................................................................3

Chapter 3. Removal and Replacement..............................................................................................4

Disassemble & Assemble the Fuse..............................................................................................4

Disassemble & Assemble the Rear Cover....................................................................................5

Disassemble & Assemble Amplifier PCBA(SUB) ......................................................................6

Disassemble & Assemble the Power Supply PCBA....................................................................7

Chapter 4. Testing Procedures ..........................................................................................................9

Chapter 5. Important Notes.............................................................................................................10

Packing requirement for sending the PCB assembly.................................................................10

Short of spare parts while repairing a speaker...........................................................................10

Chapter 6. Parts list (Vender’s number)..........................................................................................11

Chapter 7. Tools..............................................................................................................................12

Version 1.0

age 1

ServiceManual

Chapter 1. INTRODUCTION

Function Block

SIGNAL

INPUT

TRANSFORMER

SUB SPEAKER

FRONT

SPEAKER

REAR

SPEAKER

AMP PCBA

SUB PCBA

POWER

PCBA

CENTER

SPEAKER

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Chapter 2. Troubleshooting Guide

Problems Condition Probable Reasons Solutions

1.no power 1.power cable 1.cable broken 1.replace power cable

2.fuse 1.fuse broken 1.replace fuse

3.PCBA 1.center PCBA NG 1.replace center PCBA

2.power PCBA NG 1.replace power PCBA

2.display L.E.D. unlight 1.cover broken 1.L.E.D. broken or NG 1.replace L.E.D.

2.PCBA 1.MPU NG 1.replace MPU

2.cable broken 1.replace cable

3.button NG 1.button 1.button NG 1.replace button

2.PCBA 1.receiver NG 1.replace receiver

2.cable broken 1.replace cable

3.power PCBA NG 1.replace power PCBA

4.no sound 1.signal cable 1.signal cable NG 1.replace signal cable

2.PCBA 1.AMP PCBA NG 1.replace AMP PCBA

2.RCA socket NG 1.replace RCA socket

5.noise 1.speaker 1.speaker NG 1.replace speaker

2.PCBA 1.power PCBA NG 1.replace power PCBA

2.AMP PCBA NG 1.replace AMP PCBA

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Chapter 3. Removal and Replacement

Disassemble & Assemble the Fuse

Step 1

Use a screwdriver to

turn counterclockwise

and open the fuse’s

cap.

Step 2

Get the Fuse and

replace it with the

same rate.

Step 3

To install the Fuse,

reverse the steps

shown above.

Fuse

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Disassemble & Assemble the Rear Cover

Step 1

Using a screwdriver to loose 12 screws.

After taking all screws off, you can take up the Rear cover.

To install the rear cover, reverse the steps shown above.

C L

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Disassemble & Assemble Amplifier PCBA(SUB)

Step 1

*Disassemble the Rear Cover first.

Disconnect the cables & wires

*Mark the position of cables & wires

Step 2

To loose 2 screws.(A & B)

Step 3

To loose 2 screws. After taking all screws

off, you can take up theAmplifier PCBA

*To install the Amplifier PCBA, reverse

the steps shown above.

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Disassemble & Assemble the Power Supply PCBA

Step 1

*Disassemble the Rear Cover

first.

Disconnect the cable.

Step 2

To loose 8 screws. Form A-H.

Step 3

To loose 4 screws. Form I-L.

Step 4

Unsolder the wires on Power

Supply PCBA. And remove the

wires.

*Mark the position of wires

Cable

E F

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Step 5

Unsolder the wires on Power

Supply PCBA. And remove the

wires.

*Mark the position of wires

Step 6

Disconnect the 3 cables. *To

install the Power Supply PCBA,

reverse the steps shown above.

Black

Grey White

Version 1.0

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Chapter 4. Testing Procedures

Step 1

Connecting the GHT-511 to a DVD or VCD player. Play a music CD on it.

Step 2

Power on the GHT-511.

Step 3

Rotate the volume knob if it changes the volume level of each channel.

Step 4

Rotate the Surround volume knob if it change the volume level of Surround

channel.

Step 5

Rotate the Center volume knob if it change the volume level of Center channel.

Step 6

Rotate the Subwoofer volume knob if it change the volume level of Subwoofer

channel.

Step 7

Press the Mute button if it makes the volume level of each channel to null.

POWER

Subwoofer

Knob

Center

Knob

Surround

Knob

Version 1.0

age 9

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