KYE Systems Corp. Genius SP-HF500A User manual

SP-HF500A
Service Guide
SERVICE GUIDE
KYE SYSTEM CORP
Version 1.0 Page 1 of 17

Service Guide
Revision History
Version Date Change
1.0 07/08/2009
Version 1.0 Page 2 of 17
SP-HF500A

Service Guide
Version 1.0 Page 3 of 17
Table of Contents
SP-HF500A
no power .LED (indicator) unlighted ..................................................5
Safety Precautions ................................................................................4
Part List .................................................................................................17
No sound ................................................................................................6
Right or left channel no sound ............................................................7
Chapter 7. Schematic diagram...........................................................16
Chapter 4 Exploded view...............................................................14~15
Chapter 2.Specifications......................................................................11
VR,headphone jack or line-in jack abnormal ....................................10
Headphone jack output no sound........................................................9
LED indicator no light...........................................................................8

Getting Start
Pay S pecial Attention: Instructions that are i mportant to reme mber and may
prevent mistakes.
Caution: Info rmation that, if not followed, may result in d amage to the
prod uct.
Safety Precautions
Do never place the system in t he high-temp and hum idity circumstance,
prevent it from raining or rough h andling and strong shock.
* In or der to a void electrified an d other accidents, do never open the back
cover for repair without an y pro fessional guidance. In case of repair pls.
come to the pr ofessional maintenance for help.
* In case fragments or other liquid is accidentally sprinkled inside t he
cabinet, please switch off the po wer imm ediately.
* Swi tch off the power and take off the plug from the power jack w hen
the system is not on work.
SP-HF500A
Service Guide
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Service Guide
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SP-HF500A
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*Attention
Please follow the numbered sequence marked within parenthesis given in
individual
Flow chat in that this is the best-recommended sequence to rectify the problems.
1.2.1 No power，LED （indicator）unlighted
Problem
Analyze
and
identify
the
causes
Solutions
No power，LED （indicator）unlighted
Repair or replace
Defective transformer
Defective or damaged
AC cable or power
switch
resolder or replace
Or caused by the following:
1. Transformer secondary wire loosely connected with 1CN5
jack in SP-HF500 AMP .
2. Copper foil of SP-HF500 AMP PCB broken

Version 1.0 Page 6 of 17
SP-HF500A
Service Guide
1.2.2 No sound
Problem
Analyze and
identify the
causes
]
Solutions
No sound
PCB
short-circuited, dry
soldered or
broken;
1CN2 1CN3 SP-HF500A and
1CN4
in SP-HF500A AMP is not
properly connected
Repair or replace
Repair or replace
Or caused by the following defective
components
1. U1, U2 in SP-HF500A AMP PCB
2. VR1， N1，N2 in SP-HF500A AMP
PCB
Repair, resolder or
replace

Version 1.0 Page 7 of 17
Service Guide SP-HF500A
1.2.3 Right or left channel no sound
Problem
Analyze and
identify the
causes
Solutions
Replace or
replace
Re-connect ,
replace or repair
Repair or
replace
1. VR1 VR2 N1 N2 defective in SP-HF500A
AMP PCB
2. Or caused by the following defective
:stnenopmoc
R8 R2 R4 R14 C10 C5 R27 R28 C7 C9 C32
C14 C20 C31 U1 U2 SPL
Driver unit 1CN2 1CN3
or speaker
cable defective or
loosely connected
AUDIO JACK 1N1
defective or loosely
connected
PCB damaged, dry-soldered
or short-circuited;
AUDIO CABLE 1CN4
in SP-HF500 AMP is loosely
connected
Right or left channel no sound

Version 1.0 Page 8 of 17
Service Guide SP-HF500A
1.2.5 Noise
Problem
Analyze and
identify the
causes
Solutions
Filter capacitor/ diode dry-soldered
or damaged, pls check C19 C21C18
C17 C13 ID1 ID2 ID3 ID4，
in S P - H F 5 0 0 AMP defective
or not
The power supply of each IC is
normal or not;
Or caused by vibration from
too long lead wire of driver
units
Driver units damaged
Dosed not well
Repair Check and replace Repair or replace
Noise

Version 1.0 Page 9 of 17
SP-HF500A
Service Guide SP-HF500A
1.2.6 LED indicator no light
Problem
Analyze and
identify the
causes
Solutions
Check and replace
1. PCB damaged, dry-soldered or short-circuited
2. R1 in SP-HF500A AMP PCB R1defective
3. Defective LED1 in SP-HF500A AMP PCB
LED indicato
r
no li
g
ht

Version 1.0 Page
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Service Guide SP-HF500A
1.2.7 Headphone jack output no sound
Problem
Analyze and
identify the
causes
Solutions
Check and replace
N1 in SP-HF500A AMP PCB defective or its
related copper foil broken
Head
p
hone
j
ack no sound

VR:
Defective VR may cause VR1 in
SP-HF500A ZMP PCB or VR2 in
S P - H F 5 0 0 A PCB having scratching
sound when rotatin
g
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Service Guide SP-HF500A
1.2.8 VR, headphone jack or line-in jack abnormal
Problem
Analyze and
identify the
causes
Solutions
Check and replace Check and replace
Jack:
N1 N2 in SP-HF500A AMP PCB
defective
VR, head
p
hone
j
ack or line-in
j
ack abnormal

SP-HF500A
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8.3
620
180
395
0.5 0.4
29
20K
46
0.9
0.6 0.7
1
47
20K 20K
28 30
390
185
625
8.4
180
390
S/N@RATED O/P POWER

AUX1
AUX2
MASTER VOLUME
4558 TDA7266SA L
POWER AMP
FILTER
POWER
SPEAKER
SATELLITE
R
SPEAKER
SATELLITE
PHONE JACK
TREBLE
SP-HF500A
Service Guide
Version 1.0 Page 13 of 17

SP-HF500A
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SP-HF500A
Chapter 4 Exploded view
Right Satellite

SP-HF500A
Version 1.0 Page 15 of 17
SP-HF500A
Left Satellite
Chapter 4 Exploded view

Cha
p
ter 7. Schematic dia
g
ram
SP-HF500A
Service Guide
Version 1.0 Page 16 of 17

Part List
Part No. Description
21.4.014.0055 Knob 1
21.4.014.0056 Knob 2
21.6.020.0024 Wood Cabinet
11.2.001.0075 Transformer
11.1.170.0056 IC UTC4558
11.1.170.0114 IC TDA7266SA
11.1.260.0627 PCB
21.8.030.0015 Speaker Unit 3"8Ω10W
21.8.913.0006 0.5" 8Ω 5W
11.3.001.0026 AC cable
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Service Guide
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