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Service Manual 

 

  

               

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 the Amplifier PCBA 
*To install the Amplifier PCBA, reverse 
the steps shown above. 

 

A

B

 

 

 

 

 

 

 

 

Version 1.0 

Page 6

Summary of Contents for GHT-511

Page 1: ...Service Manual GHT 511 HOME THEATER ...

Page 2: ...ssemble 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 Page 1 ...

Page 3: ...Service Manual Chapter 1 INTRODUCTION Function Block SIGNAL INPUT TRANSFORMER SUB SPEAKER FRONT SPEAKER REAR SPEAKER AMP PCBA SUB PCBA POWER PCBA CENTER SPEAKER Version 1 0 Page 2 ...

Page 4: ...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 speak...

Page 5: ...ement 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 Version 1 0 Page 4 ...

Page 6: ... 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 K D E F G B A H J I Version 1 0 Page 5 ...

Page 7: ... 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 the Amplifier PCBA To install the Amplifier PCBA reverse the steps shown above A B Version 1 0 Page 6 ...

Page 8: ... 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 G H E F D C B A L K J I Version 1 0 Page 7 ...

Page 9: ... 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 Page 8 ...

Page 10: ...hannel 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...

Page 11: ...rotecting beg in order to avoid static electricity 2 Reliable external packing is also very important when sending the PCB assembly by post in that it would avoid unnecessarily lost or damage Short of spare parts while repairing a speaker If you are short of spare parts when you have some speakers waiting to be repaired it would be recommended to take the necessary parts from one speaker so that y...

Page 12: ...SLOW BLOW 6 J51 00002 03 NJM4558DD 7 J53 00001 02 Diode 1N4148 8 J51 01054 000 IC TDA7296 60W 9 J52 21001 000 Resonator 4MHZ 10 J51 01011 000 IC TL074 11 J51 11018 000 IC L7815 12 J51 11019 000 IC L7915 13 J51 21006 010 IC PT2258 14 J52 00027 01 Transistor 2SC1815 15 J52 31003 000 FET 2SJ111 16 J53 21009 000 Diode KBU808 17 J51 11024 000 IC L7805CV ST 18 J51 21002 300 MPU EM78P451P 19 J52 00026 02...

Page 13: ...Service Manual Chapter 7 Tools 1 VCD or DVD Player 2 MUSIC CD or DVD 1 Soldering Iron 40W 1 Tweezers 2 Screwdriver 3 Pliers 4 Multimeter 5 Glue heater Version 1 0 Page 12 ...

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