Barco 909 Cinemax not working

It is interesting that this was the choice of replacement since the originals are not fusible resistors. They are just classified as a safety resistor because of their use and placement in the circuit. A safety resistor is not necessarily a fusible resistor.
The correct replacement would be a .1 ohm, 3/4 watt wirewound resistor. They are common and available but a little pricey compared to a plain resistor.
You could probably even up that wattage to 1 watt without issue and then lots become available and at cheaper prices.
Even switching over to a pigtail or pico fuse would be acceptable given the right amperage. This is what most RPTV's use for protection of the convergence output circuits of the same voltages and same current and even same ic amplifiers in some applications.

Decibel, i already posted on page 19 that all Barco series projectors ( from 7 to 9 ) used the same type and value SR1 and SR2 on their conv. boards and it would be easier to find a donor conv. board. I guess you missed that post ?

Below check the SR resistors

Picture one - check SR1 (SR2 was completely burned and dead)





Picture two - check the first toasted SR2





Picture three - check another SR resistor come from a donor Barco 808 board. This is a fresh (and last) resistor that I (could) put in Cinemax.

Ok, that is all I wanted. Was to see the value's of those SR's. And any time you replace any you should be checking the value before doing so.

So let's put the SR's to rest.

Now here is what I want you to do next. And if after you translate this there is anything you do not understand, ask question before going further. And follow these directions exactly as I say.

Of those 3 SR's you posted pictures of, they all still look ok. SO put 2 of the worst looking one's in for now, that test ok, so you are not ruining more until we get this straightened out.
Then remove the 2 jumpers, start the projector and neutral out all the convergence and geometry settings like I have already asked. Also see if those 2 SR's are hot. They should not be but post if they are before continuing.

Then shut projector down and put the 2 jumpers back on but disconnect "ALL" the convergence coils. Restart the projector and see if the SR's get hot. If they do then post back.

If they do not then shut down the projector and reconnect the convergence coils, restart the projector and see if they get hot. Post your results.

The convergence coils are on the tubes. They connect to connectors on the motherboard in the tube housing that say conv. Easy to find.

They are in the same coil house but different wires. But the deflection coils have a connector called different. Be carefull with those deflection connectors. I once misplaced one and that blew my EHT. 

Look for "to conv coil red" etc. On the motherboard.

ok I just back to tests that Mastertech asked.

First of all I set all geometry and convergence to midpositions and erase all memory blocks.

First test:
- no jumpers
- conv coils connected
- resistors stay cold.

Second test:
- jumpers yes
- conv coils disconnected
- resistors stay cold.

I don't tried the third test (with jumpers and all connect) because is the condition where resistors suffered overheating until destruction.