Just Googled Hantarex POLO and saw this post - This reply is obviously too late to help the original enquiry.
However, I recently went a bit mad and purchaced 6 'Golded TEE' arcade machines. 5 of which were working. 3 of them have Hantarex POLO monitors in them and 3 of them have Hantarx POLO/2 monitors.
I therefore have the manuals and schematics of these two monitors (they are the 25" monitors). If anyone wants me to scan theses and email them I am happy to do so.
I was working on the first of these, painting over rustly bits and cleaning it up, when my mum came over and gave me a game of golf. I was surprised that she agreed to play me, since she is almost 60 years old, but it was nice, as she doesnt come over to my house very often. I was MORE surprised when she was beating me 6 holes to 4!! When luckily, the screen went blank - voiding the game instanly as far I as am concerned.
However my first ever refurb of an arcade machine now has a dead monitor, sadly. I pulled a chassis PCB out of one of the other machines and got the machine working again, but now I have one less possible machine that will work. The main (initial) bits of the power supply on the monitor board look burned out. Where the output comes from the MOSFET there is a tall wire-wound insulated resistor (11W) that is all brown beneath it (overheating?) and an inducer coil labelled very charred beneath that too (labelled TDK). The first big cap looks a little buldgy at the top too - so maybe this was on its way out?
Anyway, Id like to know what causes this type of failure - is it relatively easy to fix the power supply? (Assuming it IS the power supply problem).
Im guessing this is a common fault of the POLO monitor, because the other two arcade machines I have that have the POLO monitor all show signs of overheating at this resistor area. Interestingly, the POLO/2 boards look a lot healthier.
Any advice appreciated. If there is a mod / upgrade that alleviates the overheating Id like to know it too.
By the way, the original posters question: according to the parts list on the back of the schematic, I think (although Im a bit confused as im very very new to electronics) that it is PCB CODE: "28028800" DESCRIPTION: "TRANSF. EHT ELDOR 1242.5001/A" Ref No: "TH103"
I dont know what the PCB code refers to? The Ref TH103 is what you will probably see printed on the PCB under the component.
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