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Service Guide Model No : SP-i177

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.

1.1 Speaker no sound (Line in jack no function)

Problem

Analyze
and
Identify
Cause

Solution

Speaker no sound

Component cold

solder or Short

Circuit

Defective U1

Speaker cable disconnect,

J1 defective or speaker

damaged

Check solder

point on PCBA

Check and

Replace defective

Reconnect speaker cable or

replace defective speaker

driver and component

Page 7/15

Содержание Genius SP-i177

Страница 1: ...Service Guide Model No SP i177 SERVICE GUIDE KYESYSTEMS CORP Page 1 15...

Страница 2: ...Service Guide Model No SP i177 Revision History Version Date Change 1 0 26 01 2011 First Release Page 2 15...

Страница 3: ...tive Returns 5 1 1 Speaker no sound 1 2 LED no light 1 3 Power Volume Knob no function Chapter 2 Specifications 10 Chapter 3 Block Diagram 11 Chapter 4 Exploded View 12 13 Chapter 5 Part List 14 Chapt...

Страница 4: ...nments 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 thro...

Страница 5: ...Receiving Defective speakers from Customers Function NG __ __ Analyzing possible malfunction causes Function NG Deciding proceeding the rectification methods Function OK Replace necessary defective pa...

Страница 6: ...Service Guide Model No SP i177 Problems Item Problem Description 1 1 Speaker no sound 1 2 LED no light 1 3 Power Volume Knob no function Page 6 15...

Страница 7: ...o rectify the problems 1 1 Speaker no sound Line in jack no function Problem Analyze and Identify Cause Solution Speaker no sound Component cold solder or Short Circuit Defective U1 Speaker cable disc...

Страница 8: ...nalyze and Identify the Causes Solutions Power LED no light Component cold solder or Short Circuit Defective U2 Q1 or Q2 BT1 or LED1 defective Check solder point on PCBA Check and Replace defective IC...

Страница 9: ...i177 1 3 Power Volume Knob no function Problem Analyze and Identify the Causes Solution Power Volume no function Component cold solder or Short Circuit VR1 defective Check solder point on PCBA Replac...

Страница 10: ...el No SP i177 Chapter 2 Specifications NO Description Unit Specifications 1 Out Power at THD 10 W 1 5 2 Sensitivity mV 600 60 3 Freq Response 1KHz 3dB Hz 70 20K 10 4 S N ratio dB 70 5 Hum Noise Vol ma...

Страница 11: ...Service Guide Model No SP i177 Chapter 3 Block Diagram Audio in LCH RCH USB In Power Sw Volume control Pre Amp IC CM8608 Audio Amplifier IC BA2010 Speaker out Page 11 15 Battery Charge Link out...

Страница 12: ...Service Guide Model No SP i177 Chapter 4 Exploded View Page 12 15...

Страница 13: ...IC 1 U1 2 TP4055 IC 1 U2 3 CM8608 IC 1 U3 4 FRONT PANEL 1 BPF500958 00AA 5 CABINET 1 BPQ500425 0001 6 METAL GRILLE 1 GSN540182 0010 7 FOAM GASKET 1 IVE500003 0080 8 FOAM GASKET 1 IVE500011 0024 9 SPK...

Страница 14: ...Service Guide Model No SP i177 Chapter 6 Schematic Diagram Pls refer to The Attachment Page 14 15...

Страница 15: ...04 C3 104 C14 105 C15 105 L1 BEAD120 L6 BEAD120 L7 BEAD120 L2 BEAD120 L5 BEAD120 1 2 3 4 5 J1 USB CHRG 1 GND 2 BAT 3 PROG 5 Vcc 4 U2 VDD B1 IN C1 IN A1 ShutDN C2 GND B3 Vo A3 Vo C3 PVDD B2 GND A2 U1 B...

Страница 16: ...ry 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 PCB assembly by post in that it wo...

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