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Service Manual

GHT-511D HOME THEATER

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Summary of Contents for GHT-511D

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

Page 2: ...sassemble Assemble the Rear Cover 5 Disassemble Assemble Amplifier PCBA SUB 6 Disassemble Assemble the Power Supply PCBA 7 Disassemble Assemble the Decoder board 9 Chapter 4 Testing Procedures 10 Chapter 5 Important Notes 11 Packing requirement for sending the PCB assembly 11 Short of spare parts while repairing a speaker 11 Chapter 6 Parts list Vender s number 12 Chapter 7 Tools 13 Version 1 0 Pa...

Page 3: ...Service Manual Chapter 1 INTRODUCTION Function Block Signal input Front speakers Subwoofer Center speaker AMP PCBA POWER PCBA Rear speakers Transformer Main board Decoder PCBA Version 1 0 Page 2 ...

Page 4: ...eplace L E D 2 PCBA 1 Decoder PCBA NG 1 replace Decoder PCBA 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 Decoder PCBA NG 1 replace Decoder 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 ...

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 I K J L Version 1 0 Page 7 ...

Page 9: ...p 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 Red Grey White Version 1 0 Page 8 ...

Page 10: ... the Decoder board Step 1 Remove the main board Step 2 Use tweezers to remove the fixed glue And then use your hands to separate decoder board from main board To install the decoder board reverse the steps shown above Version 1 0 Page 9 ...

Page 11: ...o 0db Change input signal to Line The monitor should display 0db LED display SUB Line St The sound only comes from L R SUB channel Step 5 Press the Mode button LED display PL R C SUB LS RS Prologic Line Lock The sound comes from 5 1 channel Step 6 Press the Input button Change input signal to Optical The monitor should display 321 then 0db LED display L R R C SUB LS RS Optical Lock Digital The sou...

Page 12: ...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 13: ...51 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 Transistor 2...

Page 14: ...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 13 ...

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