I have a Sanyo 4-head VCR Model VWM-950. The cassette tape will not load. I have had the top off and believe it is a problem with the LEDS that serve as the detector that the cassette has been inserted. I think one of them is bad. I do not have a schematic or parts list to complete the troubleshooting. Does any one have any thoughts or have either of these available?
A schematic would definitely be a plus here, as you could then check the logic levels from the sensor(s), as the "light path" is interupted. If voltage levels changed properly, and no tape load was initiated, then this would indicate a problem elsewhere. You may want to also check for the presence of power supply voltages. If the voltage supply for the loading motor (often the capstan motor) is missing then there would be no load initiate. It sounds like you have some knowledge of how these things work- a good thing. As you are probably aware, todays electronic equipment (VCRs included) is substandard, disposable, not worth investing much if any repair. Find an old Panasonic manufactured unit, and such will often outlive several of these "lighter than air" cheap rascals.
148 views
Usually answered in minutes!
I'm having a similar problem with a VWM-920. The tape will go in only once in about ten tries. If I take the top off and hold my finger in front of the LED sensor on the left, the tape will go in and load, but it will eject after loading. No other material (paper, metal, shiny, opaque) will trigger the tape to go in. Only my finger. ???
I was wrong about the LED sensor being suspect. It was messing up because I had the top off the VCR and the light was screwing up the sensor. Apparently when I put my finger in front of the sensor it shaded it enough to operate normally. That was a red herring.
×