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Component doesnt display
Check J701.
Can you see the normal
waveform?
YES
Check the input of Component
Audio switch(IC1001) ,
Can you see the normal waveform?
YES
Check the output of Component
Audio switch(IC1001) ,
Can you see the normal waveform?
YES
Check the output of Main IC(IC100). Especially you should check
The H,V sync and clock.
Can you see the normal waveform?
YES
This board has big problem because Main IC(IC100) have some troubles.
After checking thoroughly all path once again, You should decide to replace Main Board or not.
NO
NO
NO
NO
J701
may have problem. Replace this Jack.
After checking the Power of component
Audio switch, you should decide to
replace component Audio switch or not.
After checking the Power of component
Audio switch you should decide to
replace component Audio switch or not.
After checking the Power of Main
IC(IC100) you should decide to replace
Main IC or not.
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Only for training and service purposes |
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