Hi
Me again
While i am waiting for components for my other two monitor repairs - I am trying to find the reason for why my Hantarex MTC9110 is dead.
(Mounted in my table top)
I have tried to used what Grantspain and Princess prin prin has told me, but it seems that I still need the experts advice
Problem: No picture, and no raster when i turn up the flyback.
I have tested the following:
TP1= 23,89V OK
TP10 = 131,6V OK
SP4 connector at R105 is 130V
TP12 = 12V OK
TP13 =25V OK
TP14 = Only 162,4V - according to my manual is must be 200V
D15 tested OK in circut
C36 is tested OK (4508pf)
C34 is replaced
R216 on neck PCB is also tested OK out of circuit
TR15 (HOT) is tested OK out of circuit.
TR20 (SGSF441) tests OK out of circut
What i have changed:
Nearly all the electrolytic capacitors except C54 on man PCB
And the C205 (10uf 250V) at the neck board (tests as 10.86uf ESR=1.3 ohm vloss 0,7%) new caps are ordred
Re- flowed all pins on flyback
My next step is to try to leave hot out of circuit, and 40W lamp to pin 1 of flyback to see if its is the flyback (I guess that also is possible on this chassis?)
But what can cause my 200V only to be 162V? is it the last cap C205 on neck board..
Merry Christmas