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Service Manual

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

Page 9

Содержание GHT-511

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

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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 ...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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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