47
F.
USB Problems
Problem:
USB is not working or no USB Detection.
Check USB Supply, It should be nearly 5V. Also USB Enable should be logic high.
G.
No Sound Problem
Problem:
No audio at main TV speaker outputs.
Check supply voltages of 24V VDD_AUDIO, 3.3V AUDIO_AVDD and AUDIO_DVDD
with a voltage-meter. There may be a problem in headphone connector or headphone detect
circuit (when headphone is connected, speakers are automatically muted). Measure voltage at
HP_DETECT pin, it should be 3.3v.
Summary of Contents for 17MB95S
Page 1: ...1 SERVICE MANUAL 17MB95S 15 11 2012...
Page 6: ...6 Table 1 Pin functions...
Page 9: ...9 c Pin descriptions and functions Figure 2 Pin description...
Page 10: ...10 Table 2 Pin functions...
Page 17: ...17 Table 5 Recommended operating conditions Figure 7 Pin description...
Page 24: ...24 b Features...
Page 25: ...25...
Page 26: ...26...
Page 46: ...46...
Page 49: ...49 Service Menu Main Screen Video Settings...
Page 50: ...50 Audio Settings Options 1 Menu...
Page 51: ...51 Options 2 Menu Options 3 Menu...
Page 52: ...52 Tuner Settings Menu Source Settings Menu...
Page 53: ...53 Diagnostic Menu...
Page 54: ...54 15 General Block Diagram...
