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The "B3" variation of the 711 chassis came in four configurations over its lifetime. They either employed a capstan driven reel table or a single pancake reel motor. Some had motor driven loaders and some had a cogged belt coming from the threading transmission. Some used the cam motor threading drive with a motor driven loader. To some degree it depended on the year and the value of the VCR. Because the base frame was the same the 711B3 designation appeared on the front of the service manuals. The different models and their various design variations are listed bellow. Clicking on their model numbers will display them in the browsers center frame. These models used a worm gear cogged belt driven cassette loader transmission that also drives the tape path loading. They have a top pivot entryway door that swings upwards. The reel table assembly is driven by a single pancake motor and the capstan is separate. These models used a motor driven worm gear and ring wheel cassette loader with a top pivot entryway door that swings upwards. The reel table is driven by a cogged belt coming from the capstan. Tape path loading is driven by a cam motor and transmission. These models used a motor driven worm gear and ring wheel cassette loader with a top pivot entryway door that swings upwards. Single pancake reel motor and cam motor driven path threading. Tape path loading is driven by a cam motor and transmission. These models used a motor driven worm gear and ring wheel cassette loader with a top pivot entryway door that swings upwards. Tape path loading is driven by a cam motor and transmission. The reel table is driven by a cogged belt coming from the capstan. To see a list of the 711 chassis types that were used during the life of the Beta format click here. Only Sony models are represented. These are designs that I currently have or have had in my inventory or accept for repair. Not all models are depicted. ©Misterßetamax
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