KYE Systems Corp. Genius SP-i220, Service Manual

Page: 9 / 15

Service Guide
SP-i220
Version : 1.0
Page 9 of 15
1.2.4 Headphone no function
Problem
Solutions
Chapter 2. Specifications
NO. Description Unit Specifications
1 Out Power at THD 10% W
≧
3
2 Sensitivity V
520
±
50
3 Freq. Response (Top -3dB) Hz 40~20K ± 10%
4 Separation dB
≧
40
5 S/N ratio dB
≧
70
6 Hum & Noise (Vol.: max) mV
≦
2
Broken or short circuit Defective JACK2 , R12 , R13
Check solder joints on PCB
Analyzer and
Identify the Causes
Check and Replace defective
components
Headphone no function