KYE Systems Corp. Genius GHT-510 User manual

GHT-510

G
uide
Service GHT-510
Table of Contents
C
Ch ha ap pt te er r 1 1. . H Ho ow w t to o H Ha an nd dl le e D De ef fe ec ct ti iv ve e
R
Re et tu ur rn ns s.........................................................................................................................................................4
O
Ov ve er rv vi ie ew w
.............................................................................................................................................................4
P
Po ob bl le em ms s
r
r
t
t t t
t
tr rr r
r
rr rf fr r t t
r
rt tf fr rr rr rr r r
..............................................................................................................................................................5
Problems Descriptions ..............................................................................................................................................5
Solutions of the problems..........................................................................................................................................5
C
Ch ha ap pt te er r 2 2. . A As ss se em mb bl ly y a an nd d D Di is sa as ss se em mb bl ly y......................9
H
Ho ow w o o A As ss se em mb bl ly ya an nd d D Di is sa as ss se em mb bl ly yh he e S Sp pe ea ak ke er r
...................................................9
Disassemble & Assemble the Fuse............................................................................................................................9
Disassemble & Assemble the Rear Cover...............................................................................................................10
Disassemble & Assemble Amplifier PCBA(SUB)..................................................................................................11
Disassemble & Assemble the Power Supply PCBA ...............................................................................................12
Disassemble & Assemble the Center Speaker.........................................................................................................13
Disassemble & Assemble the main board...............................................................................................................14
Replace the MPU....................................................................................................................................................15
Replace the Oscillator .............................................................................................................................................16
C
Ch ha ap pt te er r 3 3. . H Ho ow w t to o t te es st t t th he e G GH HT T- -5 51 10 0.............................17
T
Te es s P Po oc ce ed du ue es s
.........................................................................................................................................17
C
Ch ha ap pt te er r 4 4. . I Im mp po or rt ta an nt t N No ot te es s.................................................................18
P
Pa ac ck ki in ng g e eq qu ui ie em me en nt t o o s se en nd di in ng gh he e P PC CB B a as ss se em mb bl ly y
.......................................18
S
Sh ho o o o s sp pa ae e p pa at ts s w wh hi il le e e ep pa ai ii in ng g a as sp pe ea ak ke er
.....................................................18

G
uide
Service GHT-510
C
Ch ha ap pt te er r 5 5. . T To oo ol ls s...................................................................................................................19
C
Ch ha ap pt te er r 6 6. . B Bl lo oc ck k D Di ia ag gr ra am m..........................................................................20
C
Ch ha ap pt te er r 7 7. . P Pa ar rt ts s l li is st t...................................................................................................21
SUBWOOFER........................................................................................................................................................21
Front........................................................................................................................................................................21
Rear.........................................................................................................................................................................21

Service GHT-510
G
uide C
Ch ha ap pt te er r 1 1. .
H
Ho ow w t to o H Ha an nd dl le e D De ef fe ec ct ti iv ve e R Re et tu ur rn ns s
O
Ov ve er rv vi ie ew w
Verify problems &
P
roceeding necessary tests
Analyzing possible malfunction
causes
Deciding & proceeding the
rectification methods
Replacing necessary defective
parts
Function NG
Return the speaker with proper repacking to
custome
r
Test the speaker if it works
normally
Receiving Defective
Speaker
From Customer
Function NG Function OK
Function OK

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uide
P
Pr ro ob bl le em ms s
Problems Descriptions
1 No Power
2 No Display
3 SW Malfunction
4 Noise
5 No Sound
6 Remote control does not work
Solutions of the problems
 No Power
Signal
Cable(9P)
Electronic
Analyze the
Problem
Identify the
Problem Causes Defective
Fuse Defective
MPU
Replace
Cable
Replace
Fuse
Replace
MPU
Defective
Cable Defective
Oscillator Defective
Power
Supply
Replace
Power
Supply
Fuse
No Power
Replace
Oscillator
Solutions
Problem

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uide
 No Display
Electronic
Defective
MPU
Replace
MPU
Defective
Cable
Replace
Cable
Mechanical
Defective
Display
Monitor
Replace
Display
Monitor
SW Malfunction
No Display
Solutions
Identify the
Problem Causes
Analyze the
Problem
Problem

SW Malfunction
Solutions
Identify the
Problem Causes
Analyze the
Problem
Problem
Electronic
Defective
Receiver
Replace
Receiver
Defective
Main
Board
Replace
Main
Board
Replace
SW
Mechanical
Defective
MPU
Defective
SW
Replace
MPU

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uide
 Noise
Electronic
Defective
VR
Replace
VR
Defective
Main
Board
Replace
Main
Board
Speaker
Defective
Amplifier
Board
Replace
Amplifier
Board
No Sound
Noise
Replace
Speaker
Defective
Speaker
Solutions
Identify the
Problem Causes
Analyze the
Problem
Problem
 No Sound
Solutions
Identify the
Problem Causes
Analyze the
Problem
Problem
Electronic
Defective
RCA
Socket
Replace
RCA
Socket
Defective
Main
Board
Replace
Main
Board
Replace
Cable
Cable
Defective
Cable

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uide
 Remote Control does not work
Electronic
Analyze the
Problem
Identify the
Problem Causes Defective
Emitter o
f
remote
control
Solutions Replace
Emitter
Remote Control does not work
Problem
Replace
Spring
Defective
Connection
of the
batteries
Mechanical
Replace
Receiver
Defective
Receiver

Service GHT-510
G
uide C
Ch ha ap pt te er r 2 2. .
A
As ss se em mb bl ly y a an nd d D Di is sa as ss se em mb bl ly y
H
Ho ow w t to o A As ss se em mb bl ly y a an nd d D Di is sa as ss se em mb bl ly y t th he e S Sp pe ea ak ke er r
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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uide
Disassemble & Assemble the Rear Cover
figure 2.2.1. Step 1
Using 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.
G
K
I
D
E
F
J
H
L
C
B
A

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uide
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.
Wires
Cables Amplifier
PCBA
A
B

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uide
Disassemble & Assemble the Power Supply PCBA
Step 1
*Disassemble the Rear Cover
first.
Disconnect the cable.
Step 2
To loose 5 screws. First B-C-D
and then A & E.
Step 3
Unsolder the wires on Power
Supply PCBA. And remove the
wires.
*Mark the position of wires
Step 4
Unsolder the wires on Power
Supply PCBA. And remove the
wires.
*Mark the position of wires
*To install the Power Supply
PCBA, reverse the steps shown
above.
wirescable
P.S.
PCBA
E
D
C
A
B

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uide
Disassemble & Assemble the Center Speaker
Step 1
To turn over the center
speaker.
Using a tweezers to remove
the rubber pads. Using a
screwdriver to remove 5
screws. (from A to E)
Step 2
Remove the covers
Step 3
Remove 4 screws. (fromA
to D)
Step 4
Unsolder the wires. Remove
the speaker.
*To install the Speaker,
reverse the steps shown
above.
D
E
B
D
C
A
C
B
A

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uide
Disassemble & Assemble the main board
Step 1
Do the disassembling steps 1 & 2
of the Center Speaker
Step 2
To loose the 2 screws A& B.
Step 3
To loose the 2 screws C & D.
Remove the main board.
*To install the main board, reverse
the steps shown above.
BA
C
D

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uide
Replace the MPU
Step 1
Locate the MPU on the main board.
Step 2
Unsolder the MPU. Remove the MPU.
*To install the MPU, reverse the steps
shown above.
MPU
MPU

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uide
Replace the Oscillator
Step 1
Locate the Oscillator on the main board.
Step 2
Unsolder the Oscillator. Remove the
Oscillator.
*To install the Oscillator, reverse the
steps shown above.
Oscillator
Oscillator

Service GHT-510
G
uide C
Ch ha ap pt te er r 3 3. .
H
Ho ow w t to o t te es st t t th he e G GH HT T- -5 51 10 0
T
Te es st t P Pr ro oc ce ed du ur re es s
Step 1
Connecting the GHT-510 to a DVD or
VCD player. Play a music CD on it.
Step 2
Power on the GHT-510. The monitor
should display ‘68’.
Step 3
Rotate the volume knob if it change the
volume level of each channel.
Step 4
Rotate the volume knob if it change the
volume level of each channel.
Step 5
Rotate the center knob if it change the
volume level of center channel.
Step 5
Rotate the subwoofer knob if it change
the volume level of subwoofer channel.
Step 5
Rotate the surround knob if it change the
volume level of surround channel
Step 6
Press the mute button if it makes the
volume level of each channel to null.

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G
uide C
Ch ha ap pt te er r 4 4. .
I
Im mp po or rt ta an nt t N No ot te es s
P
Pa ac ck ki in ng g r re eq qu ui ir re em me en nt t f fo or r s se en nd di in ng g t th he e P PC CB B a as ss se em mb bl ly y
PCB assembly is a kind of sophisticated electronic circuit board. Therefore, well packing will be
required when sending them by post or courier.
1. Some sophisticated IC components are mounted on the PCB assembly, hence it is necessary to
pack each PCB assembly with a separate static protecting 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.
S
Sh ho or rt t o of f s sp pa ar re e p pa ar rt ts s w wh hi il le e r re ep pa ai ir ri in ng g a a s sp pe ea ak ke er r
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 you may have the as many as
speakers be repaired and sent back to your customer, and left only one or few speakers waiting for
spare parts sending from KYE.

Service GHT-510
G
uide C
Ch ha ap pt te er r 5 5. .
T
To oo ol ls s
1. VCD or DVD
2. MUSIC CD
1. Soldering-Iron(40W)
1. Tweezers
2. Screwdriver
3. Pliers
4. Multimeter
5. Glue-heater

Service GHT-510
G
uide C
Ch ha ap pt te er r 6 6. .
B
Bl lo oc ck k D Di ia ag gr ra am m
Transformer
Volume
control
SUB
Front
Surround
Center
SUB
Main board
Power
Supply
PCBA
Amplifier PCBA
Input signal