Gateway XHD3000 Service Manual page 72

30" LCD Color Monitor
4 .No sound
Check the source Check the source Check the source
OK
Check signal filter circuit
Check signal filter circuit Check signal filter circuit
OK
Check Earphone jack Check Earphone jack Check speaker bar
output jack
Check U152,U193,U133,U201
Check U502,U503,U504,U601 Check U502,U503,U504,U601
OK
Check louder Check speaker Check speaker
speaker
NG
NG
NG
Replace the Earphone jack Replace the Earphone jack
NG
SD/HD HDMI,Component,PC signal
NG
NG
Replace speaker Replace speaker Replace louder
Reset source Reset source Reset source
Replace the filter circuit Replace the filter circuit Replace the filter circuit
Replace the speaker bar
output jack
Replace U502,U503,U504,U601 Replace U502,U503,U504,U601 Replace U152,U193,U133,U201
speaker
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Gateway XHD3000