Check that the voltage of PROT2 is
active. [Q144 : Collector]
Malfunction of [U8601/8602].
Malfunction of [U414].
Malfunction of [U412].
Malfunction of [D8601].
Malfunction of [U201].
・Detection of the DC offset
・Thermal detection
・Over current
Damage to power amplier
Damage to power supply circuit
Check that voltage is supplied to [N8602 :
5pin(+12V)/N8602 : 3pin(-12V)]
Check that voltage is supplied to the
[U414] output (+5V)
Check that voltage is supplied to the
[U412] output (+3.3V)
Check that voltage is supplied to [N8602 :
6pin]
Check that voltage is supplied to [C207]
Check the input level, speaker connector
and speaker resistance value
NG
NG
NG
NG
NG
Active
Hi
YES
YES
YES
YES
YES
Hi → Lo
34
To Next Page
Loading...
