Yamaha EMX5016CF Service Manual page 7

EMX5016CF
5
Check F401 resistor value.
6
Check IC402 resistor value. (*2)
7
Check the AC input voltage.
*2) The resistor value is the standard value. Replace IC402 if the resistor value is extremely different from the standard.
114
A
F401 resistor value
OPEN?
NO
Pin 4-5
Resistor value = approx. 10 k‰?
YES
Pin 4-3
Resistor value = approx. 6.0 k‰?
YES
Pin 4-2
Resistor value = approx. 500 M‰?
YES
Pin 4-1
Resistor value = approx. 500 M‰?
YES
Check the AC input voltage.
(Voltage varies depending on destination.)
B
YES
(OPEN)
Replace F401.
NO
Replace IC402.
NO Replace IC403.
Replace IC401 if the problem could not resolve.
NO
Replace IC402.
Replace IC401 if the problem could not resolve.
NO
Replace IC402.
Replace IC401 if the problem could not resolve.