Akai ATV-350R, Service Manual

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AKAI ATV-350R Maintenance Manual
5. Repairing Procedures for White Light
Test whether the switch power supply
+5V, +8V and –15V is normal or not
Whether repair power supply and subsequent
circuit is short-circuited or overloaded
Test whether 3Y26, +5V and +7.5V power
supply is normal or not
Check whether 3Y26 is
broken or not
Check the loop of power
supply circuit
Test w5V, +17V and
–15V of bus socket is normal or
Yes
No
Yes
No
No
Change module of
LCD software
Change LCD
screen
Yes
No
Check the loop of
power supply
No