KYE Systems Corp. Genius SP-F120 Service Manual Download Page 8

Page: 8 / 15

Service Guide

SP-F120

1.2.2 No power

Problem

Analyze and
Identify the Causes

Solutions

Version 1.0 Page 8 of 15

No power

Broken or short circuit

Check solder points on

PCB

Defective
D1~D4,
Power SW,
Transformer,

Speaker cable dis-connect or

speaker damaged

Re-connected speaker cable

or replace defective speakers

Check and replace

defective components

Summary of Contents for Genius SP-F120

Page 1: ...Service Guide SP F120 SERVICE GUIDE KYE SYSTEMS CORP Version 1 0 Page 1 of 15 ...

Page 2: ...Service Guide SP F120 SP F120 Version 1 0 Revision History Version Date Change 1 0 26 05 2006 Version 1 0 Page 2 of 15 ...

Page 5: ...omers Analyzing possible malfunction causes Deciding proceeding the rectification methods Replace necessary defective parts Return the speakers with proper repackaging to customers Verifying problems proceeding necessary tests Proceeding tests to verify if the speaker is functioning normally Function OK Function NG Function OK Function NG ...

Page 6: ...Service Guide SP F120 1 2 Problems Item Problem Description 1 2 1 L R channels no sound Version 1 0 Page 6 of 15 1 2 2 NO power Attention ...

Page 7: ...lems 1 2 1 L R channels no sound Problem Analyze and Identify the Causes Solutions Version 1 0 Page 7 of 15 L R channels no sound Broken or short circuit Check solder points on PCB Defective U1 VR1 PhoneJK C3 C4 C11 C12 C13 C14 R7 R8 Speaker cable dis connect or speaker damaged Re connected speaker cable or replace defective speakers Check and replace defective IC or components ...

Page 8: ...es Solutions Version 1 0 Page 8 of 15 No power Broken or short circuit Check solder points on PCB Defective D1 D4 Power SW Transformer Speaker cable dis connect or speaker damaged Re connected speaker cable or replace defective speakers Check and replace defective components ...

Page 9: ...tions Satellite Front AT 1KHZ NO Description Unit Specifications 1 Out Power at THD 10 W 0 8 0 2 2 Sensitivity mV 400 40 3 Freq Response Ref 3dB Hz 100 20K 4 Separation dB 35 5 S N ratio dB 40 6 Hum Noise Vol max mV 3 Version 1 0 Page 9 of 15 ...

Page 10: ...Service Guide SP F120 Chapter 3 Block Diagram Version 1 0 Page 10 of 15 ...

Page 11: ...Service Guide SP F120 Chapter 4 Exploded View Host Woofer 2 Knob 4 Front shell 3 Speaker 5090 7 Rear shell 6 Transformer 5 PCBA 1 Net frame Version 1 0 Page 11 of 15 ...

Page 12: ...Service Guide SP F120 Satellite 1 Net frame 2 Speaker 5090 3 Front shell 4 Rear shell Version 1 0 Page 12 of 15 ...

Page 14: ...Service Guide SP F120 Chapter 6 Schematic Diagram Version 1 0 Page 14 of 15 5090 4OHM 3W ...