Instruction manual for the HITACHI 7B-SV510 recorder. - Model: 7B-SV510 - Brand: HITACHI - Type: Recorder - Warranty Information: Warranty and after-sales service available The above is AI's assessment. HITACHI video cassette recorder Common instruction manual for 7B-BS710, 7B-SV510, and 7B-SV410 There are folds and writings due to aging, but there is no problem with reading. Please consider only if you understand that this is a used item.