hi
got a dead maxim 11-54 [26 inch] [no standby light]
from 1st obseravtions on opening
ic21 pin 7 was blown 'fsd200'
c322 blown
q300 faulty this was after checking with a meter
everythings else looked and tested ok
replaced the three parts
and connected the inverter as load left mainboard of disconnected so i could check the standby voltage was present.
the power supply board has the 5v main voltage but the standby voltage reads 0,3v {haven't been able to establish why}
the voltage on the primary side at the base of q300 reads 14.07v
@ filter cap 240v
d315 and d318 where changed although measuring ok as in the past it is common for them to go open when ic 21 shorts along with q300
just wandered if anyone has had a similar problem and can suggest a probable fix or direction to take
cheers
Topic: maxim 11-54 'dead' (Read 5022 times)