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I suspect that if it was just the belts then you could repaire it, but power supply problems are a different matter. If the transformer has blown you would be looking at a hefty bill in parts alone. If it was one of my favourite machines I would look for another on E-Bay even if it was only to salvage parts to repair it. Otherwise the only thing you could do is sell your clapped out model on E-Bay for parts!
Hello,The transformer (breaks) if the secondary is shorted for any reason.Also a power surge to the house/building will kill it (lighting strike/car hitting telephone pole).It might cause damage to the board.It is cheaper to try a new transformer BUT add a inline 3 amp fuse in the secondary so that will be the last transformer you have to replace(just fuses)if the short is hard to find.Power up the old board & see if it works,unless there is obvious damage.The plug sometimes comes with a new board because there is a wiring change to install it(on some) replacement boards.
You may be on the wrong track here.......fly backs are a common failure,but not because of power surge. Most commonly the problem would be on the primary side of the power supply ,such as the rectifiers and sw mode regulator. If you want to prove it,just un solder the horiz out transistor(q401) and the pin of the flybackit connects to...... and if it still blows fuse ,you need to work on the power supply.......not the horiz/hv area
I talked to 3 different departments at ITI, they all say you can't get
them anymore (sales, tech support, and repair) No one even has a number
for a refurb equipment company.
LINE CARRIER POWER TRANSFORMER : : ITI part #60-145-235 Canada part #60-366 :
: The power transformer supplies a DC voltage of approximately 13 to 14
VDC (unloaded) to the CPU through terminals 1 & 2. Additionally,it
contains the line carrier circuitry for the Wireless Interior Siren
through terminal 3. The AC power indicator voltage for the CPU is
carried through terminal 4. : : The Transformer is fused with a 400
mA fuse on the primary side of the transformer. Replace only with a 400
mA 250V Time Lag Fuse (ITI Part #33-023). This is all I could locate, hope something here helps. please leave rating. thank you
The fix may be as simple as replacing a fuse. Location varies by model, but each has an internal fuse on one of its circuit boards. SAFETY NOTE: It may seem obvious, but be sure to disconnect power from the set before you open the case.
If the fuse is not the problem, you will need to seek professional repair. Unfortunately, Bose does not release their parts lists or schematics, effectively
creating a monopoly for parts and repairs. In fact, their web site
says that the Bose factory is the only option for service or repair.
They used to list a flat rate repair charge on the web site, but
removed it - probably because it scared too many people. Their
troubleshooting guide (below) might help, but it's very simplistic.
Before you invest in expensive factory repair on one of these trouble
prone sets, you might want to investigate the new HD radios -- better
sound at a MUCH lower price.
Not sure how much you are familiar with replacing boards or transformers but, if you have never done this before - i would suggest not to. Walmart sells the Durabrand's and yours is currently going for about $20. The thermal fuse itself will probably be around $2-$5 and the transformer probably around if you find it at an electrical store or if you order it online then pay S&H along with the installation time, you pretty much will come out even (unless of course you are an electrician or have some sort of tech background). Also the surge may have also created other issues along with the transformer and you may have to spend additional money. Lightning hit our house and blewout a transistor on my TV board - i knew I could replace it, but instead went out and bought a new one thinking I may have additional issues. I bought the new one and being spiteful decided to fix my TV - I was right I would have ended up paying almost $400, so I tossed it. If you are "hell bent" on fixing your radio I would suggest checking out this FAQ before you do anything - I have found it useful before and saved some change at the same:
Does it attempt to startup at all? Do you get any lights or any indication that the unit is trying to start? If not, there should be a small transformer inside that is the standby transformer. It generates the 5V standby voltage. I have seen these go open in the primary since there is a fuse built into the transformer. You may need to replace this transformer. You should be able to get to the primary winding. With the unit unplugged, measure across the primary side with an ohmmeter. You should read a low value. If it reads infinity, the primary is open and you need to replace the transformer.
1/ Obtain a genuine replacement transformer from the Crosley
company in the USA. 120volts and you must then use a
step down transformer for the Australian power supply.
2/ Obtain a locally manufactured transformer that has a 230v
Primary but the secondary is matched to the Crosley power
This can be sorted out by your service technician..
3/ Advertise in the "Wanted to buy" section of E-bay or any
other USA Internet trading post to obtain another CR-83
4/ Advertise in the "Wanted to buy" section of any Australian
Internet trading post to obtain another CR-83 complete....
(You just might get lucky)
Ensure the mains transformer is OK...
4/ Watch the internet trading post sites for another CR-83
complete and working "for sale" Buy that one then use your
existing one for spare parts in the future..(Excluding the
transformer of course).