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Sharp LC-40SH340K Service Manual

Sharp LC-40SH340K
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77
LC-40SH340E
LC-40SH340K
26.7. No Sound Problem
Problem: No audio at main TV speaker outputs.
Check supply voltages of VDD_AUDIO, 5V_VCC and 3V3_VCC 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.
26.8. No Sound Problem at Headphone
Problem: No audio at headphone output.
Check HP detect pin, when headphone is. Check 5V_VCC and 3V3_VCC with a voltage-meter.
26.9. Standby On/Off Problem
Problem: Device cannot boot, TV hangs in standby mode.
There may be a problem about power supply. Check 12V_VCC, 5V_VCC and 3V3_VCC with a voltage-
meter. Also there may be a problem about SW. Try to update TV with latest SW. Additionally it is good to
check SW printouts via hyper-terminal (or Teraterm). These printouts may give a clue about the problem.
25.7
26.8
26.9

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Sharp LC-40SH340K Specifications

General IconGeneral
Teletext functionYes
DVI portNo
HDMI version1.3
SCART ports quantity1
Product colorBlack
Mercury content60 mg
Panel mounting interface400 x 400 mm
Display diagonal40 \
Display technologyLCD
Display diagonal (metric)102 cm
Annual energy consumption177 kWh
Audio decodersDolby Digital, Dolby Virtual Speaker
RMS rated power12 W
Power consumption (standby)0.5 W
Analog signal format systemNTSC, PAL, SECAM
Digital signal format systemDVB-T
Weight and Dimensions IconWeight and Dimensions
Depth (with stand)323 mm
Width (with stand)970 mm
Height (with stand)657 mm
Weight (with stand)18300 g
Depth (without stand)91 mm
Height (without stand)613 mm

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