I have the same problem after a repair...
It was dead (faint click)
R804 was open (replaced)
It turned into a clicker
These were replaced
D417
D424
Q413
R462
R854
It now powers fine with a 5 inch horizontal.... everything else is fine
Any thoughts?
Q411 OR IC404... are they suspects?
Thanks!!!!!!
Ic404 would be not q411.
Measure the voltages on Ic404
Heres voltages of a working ic;
Ic404 needs to output @ pin 6, A square wave @ 18v's P~P voltage.
Ic 404 pin1; 2.4v DC pin2; 2.5v pin3; .2 pin4; 1.8v pin5; 0. ground pin6; 7.7v pin7; 20v pin8; 5.v
Things to check;
adding to your list,Check connections on C438,check or change Q418,R424 are good
Q404,D426,check R415,Check C472,replace Q414
And those 1 watt resistors R478,R479,R480 solder in good.
Vr402 Horizontal width sub pot,confirm it has a good ground on pot.
Did you find r462 open?
Whats the B+ voltage 170?
HV correct? if you got a HV probe
Heres a small cap list
C828 2200/25v
C823 470/25V
C827 470/ 50V
C847 470/25V
C820 10/50V
C806 1/50V
C814 10/ 50V
C813 10/ 50V
C810 220/35V
C844 4.7 /400V
C838 220/16V
C839 10/250V
C834 100/16V
C832 100/16V
C329 100/16V
C423 4.7/ 400V
C417 22/250V
C447 10/250V
C415 1000/16V
C414 220/16V
C904 47/50V
C901 10/50V
C907 100/ 50V
C452 47/ 50V
C445 47/ 50V
C415 1000/16V
C466 470/ 25V
C451 10/250V
C314 2200/16V
C306 2200/ 25V
C308 220/ 50V
compare to list what you remove from chassis is the same
voltage may change to higher in some case's.
A recommended list just to be up and running.
A complete restore list consist of a few more caps etc.
If you don't want to tackle it send it to me for 100 or less and i will just fix it
or send it back unrepaired then you can try someone else,if you like.
Just pm me for details.