KYE Systems Corp. Genius SP-HF1250K User manual

S
SE ER RV VI IC CE E G GU UI ID DE E
KYE SYSTEMS CORP.
S
SP P- -H HF F1 12 25 50 0K K
Version:2.0
Total 16 Pages (Cover Page included)

Version: 2.0 Page 1/16
Version Date Changes
1．0 Official Release
2．0 07.06.25
s
Guide
ervice SP-HF1250K
Revision Histor
y

Version: 2.0 Page 2/16
Revision History……………………………………………………………… ……..1
Table of Contents………………………………………………… ………….2
Getting Started………………………………………………… ……….……………....3
Conventions Used in this Guide………………… ………...…………….….3
Safety Precautions……………………………… ………………...…….…..3
Chapter1. How to Handle Defective Returns………………… ……………………..….4
1.1 Overview…………………………………………………………...…….4
1.2 Problems………………………………………………………...………..5
1.2.1 Power LED (indicator) Unlighted………………...…………….........6
1.2.2 Does not work or one channel no sound……………………………..7
1.2.3 Noise……………………………………………………………...….7
Chapter2. Specifications……………………………………………………………...…..8
Chapter3. Block Diagram………………………………………………………………...9
Chapter4. Exploded View………………………………………………………….…10-11
Chapter5. Part List…………………………………………………………….……..12-13
Chapter6. Important Notes……………………………………………………………....14
6.1 Packing Requirement for sending the PCB Assembly by post……………14
6.2 Short of Spare Parts while Repairing a Speaker System……………….….14
Chapter7. Circuit Schematic…………………………………………………………15-16
s
Guide
ervice SP-HF1250K
Table of Contents

Version: 2.0 Page 3/16
Conventions Used in this Guide
Pay Special Attention: Instructions that areimportantto
remember and may prevent mistakes.
Safety Precautions
The following precautions should be observed in handling the speaker described in this guide:
Place the speakers on a flat level and stable surface.
Do not place the speakers in environments subject to mist, smoke, vibration, excessive dust, salty
or greasy air, or other corrosive gases and fumes.
Do not drop or jolt the speakers.
Do not allow anything to drop into the subwoofer case through its ventilator, as it could result
in fatal electric shock or fire.
Place the unit far enough from other equipments for good heat dissipation.
Disconnect the AC power cord from the AC outlet before performing any maintenance on the
speakers.
Do not perform any maintenance with wet hand.
Prevent foreign substance, such as water, other liquids or chemicals, from entering the speakers
while performing maintenance procedures on the speakers.
s
Guide
ervice SP-HF1250K
Getting Started
Attention
Caution: Information that, if not followed, may result in
damage to the product.

Version: 2.0 Page 4/16
1.1 Overview
s
Guide
ervice SP-HF1250K
Chapter 1. How to Handle Defective Returns
Receiving Defective
Speakers
from Customers
Verifying problems&
Proceeding necessary tests
Analyzing possible
Malfunction causes
Deciding & proceeding
the rectification methods
Replacing necessary
Defective parts
Proceeding tests
To verify if the speaker is
functioning normally
Functioning OK
Return the speakers with
Pro
p
er re
p
acka
g
in
g
to customers
Functioning NG Functioning OK
Functioning NG

Version: 2.0 Page 5/16
1.2 Problems
Item Problemdescriptions
1.2.1 Power LED (indicator) unlighted
1.2.2 Does not work or one channel no sound
1.2.3 Noise
s
Guide
ervice SP-HF1250K

Version: 2.0 Page 6/16
Attention
1.2.1 Power LED (indicator) unlighted
s
Guide
ervice SP-HF1250K
Please follow the numbered sequence marked within parenthesis given in individual
Flow chart, in that this is the best-recommended sequence to rectify the problems.
Problem
Analyze
and
Identify
the Causes
Solutions
Secondary wire Of
transformer is
Disconnedcted of
defective
CheckD1.2
.5.6
Check
Q1 9014
Defective power
Switch or LED
Resolder or replace defective component（s）
Power LED （indicator）unlighted

Version: 2.0 Page 7/16
1.2.2 Does not work or one channel no sound
1.2.3 Noise
s
Guide
ervice SP-HF1250K
Problem
Analyze and
Identify the
Causes
Solutions
Mic Does not work or
One channel no sound
Broken o
r
Short circuit
Defective IC
Defective
Audio cable
Replace
Audio cable
Check solde
r
Points on PCB
And resolder
defective one(s)
Check and replace
Defective IC
Problem
Analyze and
Identify the
Causes
Solutions
Noise
Defective VR Defective IC
Check and replace
defective component(s)
Replace
Defective VR
Replace defective IC
Component(s) aroun
d
IC is/are defective

Version: 2.0 Page 8/16
Satellite
No
.
DESCRIPTION UNIT NOMINAL LIMIT
FR FL
1. FRONT OUTPUT POWER @THD 10% W 25 25 ≥20
2 SENSITIVITY（1KHz）@RATED O/P
POWER
mV 725 725
±50
3 SENSITIVITY(1KHz)@1W O/P POWER mV 135 135 ±15
4 MAX INPUT LEVEL@1% THD mV 600 600 ±40
5 FREQUENCY RESPONSE(1KHz=0dB)
1Hz dB -2 -2
±0.5
1K dB 0 0
±0.5
90K dB -3 -3
±0.5
6 S/N @RATED O/P POWER dB 75 75 ≥60
7 CHANNEL UNBALANCE @REF O/P
POWER
dB 0.3 0.3
≤0.5
8 CHANNEL SEPARATION(ONE
CHANNEL IN; OTHER CHANNEL INPUT
SHORTING)
dB 49 49
≥40
9 HUM NOISE (VR MAX)
(VOLUME MAX; INPUT SHORTING)
mV 2.5 2.5
≤10
10 HUM NOISE (VR MIN)
(VOLUME MIN. INPUT SHORTING)
mV 1.5 1.5 ≤5
s
Guide
ervice SP-HF1250K
Chapter 2. Specifications

Version: 2.0 Page 9/16
s
Guide
ervice SP-HF1250K
Chapter 3. Block Diagram

Version: 2.0 Page 10/16
Subwoofer
s
Guide
ervice SP-HF1250K
Chapter 4. Exploded View

Version: 2.0 Page 11/16
SATELLITE
s
Guide
ervice SP-HF1250K
Chapter 4. Exploded View

Version: 2.0 Page 12/16
Subwoofer
Ref. No. Description RS Part No. Part No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Knob Silver Color
Key press, Silver Color
Panel , Silver Color, Black Silk-screen
Fram, Black HIPS
Badge, Black Color AL
Speaker, 5.25" 4Ω20W
Speaker, 1" 8Ω15W
Wood-box, Silver Color, 12T MDF
Transformer, 230V 50HZ O/P:13.5VACx2/2.2A
Back Board, Black Color
Input Board, Black HIPS
Buckle, Black PA
RCA , Monotrematous Yellow
Output Board, Black HIPS
Heat sink, AL Silver
Output PCBA,
IC TDA 2030AV
Rubber Foot, Black
Power Switch, 2PIN
Function PCBA , Volume
IC MC4558
Function PCBA, Karaoke
IC PT2399
0107HIPS81002G09
0107HIPS81001G08
0102HIPS84056G02
0101HIPS80090G01
0406030401050G01
084020045A112G02
0820150801312G01
9411040011950G01
2225400020001G01
1003040910200G01
0114HIPS00021G01
011600PA00002G01
2021184084101G01
0114HIPS00007G01
0405010601125G01
180103594V001G03
21TDA2030AVCHG01
4311020050010G01
241A220050001G03
180303594V001G02
21100MC4558CHG01
180603594V001G01
21100PT2399CHG01
s
Guide
ervice SP-HF1250K
Chapter 5. Part List

Version: 2.0 Page 13/16
Satellite
Ref. No. Description RS Part No. Part No.
1
2
3
4
5
6
7
8
Badge, Black Color AL
Fram, Black HIPS
Speaker, 5.25" 4Ω20W
Speaker, 1" 8Ω15W
Rubber Foot, Black
Wood-box, Silver Color, 12T MDF
RCA , Monotrematous Yellow
Input board, Black HIPS
0406030401050G01
0101HIPS00104G01
084020045A112G02
0820150801312G01
4311020050010G01
9411040011950G02
2021184084101G01
0114HIPS00017G01
s
Guide
ervice SP-HF1250K
Chapter 5. Part List

Version: 2.0 Page 14/16
6.1 Packing requirement for sending the PCB assembly by post
PCB assembly is a kind of sophisticated electronic circuit board. Well packing
Will be required when sending them by post.
*Some sophisticated IC components are mounted on the PCB assembly, hence
it is necessary to pack each PCB assembly with a separate static protecting bag,
in order to avoid static electricity.
*Reliable external packing is also very important when sending the PCB assembly
by post, in that it would avoid unnecessarily lost or damage.
6.2 Short of spare parts while repairing a speaker system
If you are short of spare parts when you have some spesker systems waiting to
be repaired,it would be recommended to take the necessary parts from one
Speaker system,so that you may haye the as many speaker systems
s
Guide
ervice SP-HF1250K
Chapter 6. Important Notes

Version: 2.0 Page 15/16
1
s
Guide
ervice SP-HF1250K
Chapter 7. Circuit schematic

Version: 2.0 Page 16/16
2
1
s
Guide
ervice SP-HF1250K
Chapter 7. Circuit schematic