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Hello Edwin Ortiz---My tv had the red blinking light on the power board and i found a tiny 3amp subminiture fuse listed as F2 on the printed board. It fooled me because it did not look like any fuse i've ever seen. Anyhow the fuse was open and the problem was the two transistor listed as Q6 and Q7 on the power board.The transistors are a brand from fairchild with a part # FQPF9N50CF . They cost $1.60 each and i got them from Mouser Electronics out of texas (www.mouser.com )
On power board check F2 minifuse and transistors Q6 and Q7---make sure that you use so heat sink compound on the new transistors or they wont last long. You can reach me at [email protected] for more detail on how to fix. good luck--jim--
In the Polaroid FLH-3701, the fuse is located on the power supply board, next to the AC power connector. It is a small black cylinder. It is labelled F1. Value is 5 amp, 250 volts.
A fuse does not blow for no reason. Most commonly a fuse will fail because of a short someplace on the board. I have this same TV. The fuse blew. The reason was transistor Q6 had shorted. There are two identical paired transistors on the output side. Q6 and Q7. They are both Infineon 11N60C3 MOSFET transistors. Check those for a short. There may be a burnt smell.
More commonly, this TV will fail because of bad capacitors on the power supply board.
Your washer uses a wax motor door latch assembly with a high failure rate that led to the filing of class suit against Maytag in 2004. The failure of the wax motor results in a no spin problem.
Verify first if the door lock light is on. If not, the wax motor failed and resistor R11 and transistor Q6 on the machine control board also failed. Replace the wax motor and R11 and Q6.
Most technicians will advise you to replace the machine control board and not just the wax motor. But replacing them is not a difficult task. You just need to know how to solder and desolder.
When you opt to ask a technician to repair your machine, insist that only the wax motor, R11 and Q6 must be replaced, not the entire control board. The service will cost you about $300.
Do not hesitate to inform me if you want to do the repair yourself for the complete disassembly and repair procedure.
No doubt the transistor in the motor controller inside the engine is shorted TIP31C Q6 If you have the skills you can repair the unit. Parts are cheap, like 50 cents. Expense is shipping. Have repaired at least one that had the probblem you describe
good luck
if r 11 is bad you should really check the bearing on the tub you will probably find it to be bad or going bad causing the moter to pull more amps causing r 11 to burn out.
Hey Brandon.
Besides those transistors, you may also fine the large capacitor
adjacent to the transformer gone too, Possibly the transformer may be
bad too ?
Also the 924s used at least two style boards.
Are they black with 3 SMD pads? They should have a tiny tiny number on the top corresponding to a SMD code that will tell you what they are (example: D9A means 5.5V zener diode).
You should be able to just get a new inverter or repurpose an inverter out of something else to get it working again. An inverter that powers any other CCFL bulb should work fine.
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