【Overview】 ・This item is a repaired and restored 50-year-old piece of junk. While all functions have been confirmed to operate normally, it is being sold as a junk item due to its age. Occasionally, there are buyers who complain about issues unrelated to basic functionality, such as excessive noise on one side, slow folder opening, or dissatisfaction with the lighting brightness, and attempt to return the item. We kindly request that only those who appreciate the value of a restored item purchase this product. 【Product Description】 Product: Stereo Cassette Deck Manufacturer: Sony Model No.: TC-2350SD Release Date: 1975 Price: 56,800 yen 【Appearance】 ・The front panel is in very good condition with no scratches, but there are some areas on the chassis where slight rust is starting to appear. However, the paint has not peeled or discolored, so overall, it is considered to be in good condition. 【Repairs and Adjustments】 ・Complete disassembly and cleaning of the front and rear drive sections, re-application of grease ・Complete disassembly, repair, and cleaning of the head block section ・Ultrasonic cleaning of the recording volume, recording/playback switch with ethanol ・Repair of fast forward and rewind mechanisms, idler replacement ・Replacement of recording/playback signal processing IC ・Replacement of capstan, function, and counter belts ・Repair of recording circuit, VU meter drive circuit, and muting circuit ・DC servo motor speed adjustment ・Playback level, recording sensitivity, and VU meter sensitivity adjustment ・Recording/playback head azimuth adjustment, demagnetization, and cleaning ・Cleaning of pinch roller and capstan 【Operational Check】 ・All functions, including recording, playback, pause, fast forward, rewind, and timer standby, have been confirmed to be working. 【Sound Quality Check】 ・Based on listening tests with commercially available music tapes, the sound quality is acceptable for music appreciation as a 50-year-old cassette deck (wow and flutter 0.18%). (Recording and playback may be poor depending on the condition of the tape) 【Accessories】 ・One test tape used for recording, playback operation check, and adjustment 【Important Notes】 ・Due to the aging of resin parts, which can cause malfunctions, please use the device for approximately 1-2 hours per day. ・Playback speed can be finely adjusted with a semi-fixed resistor in the motor control circuit, but it requires opening the chassis. 【Reference】 https://audio-heritage.jp/SONY-ESPRIT/player/tc-2350sd.html