Sony DSR 25 Operating Instructions - Page 74
Notes on the Video Cassettes, Notes on the LCD Screen, About Moisture Condensation
UPC - 027242604001
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Notes on Use After using a tape prone to clog the heads After using such a tape causes the symptoms illustrated below, clean the heads. When the symptoms caused by clogged video heads appear Even if you clean the heads periodically, clogging of the heads may occur anyway. Clean the heads when: • mosaic-pattern noise appears on the playback picture. • a part of the playback picture does not move. • playback pictures do not appear. • playback audio is interrupted. Symptoms caused by contaminated video heads Normal picture If these pictures appear on the screen, use the cleaning cassette. To use the cleaning cassette Refer to your cleaning cassette's instruction manual. Cleaning cassettes are replaceable. The number of times you can use the cassette is specified in the cassette's instruction manual. After using the cassette that number of times, buy an optional DVCAM cleaning cassette or a Sony Digital Video Cleaning Cassette. After prolonged use, the video heads may become worn out. If optimum picture quality is not restored even after you have cleaned the video heads with the cleaning cassette, the video heads may have worn out. In that case, you have to replace the video heads with new ones. Please consult your Sony dealer. Cleaning the terminal If the terminal of the cassette gets dirty, or dust sticks to the terminal, the unit may not work correctly. Clean the terminal with a swab once every ten times you eject a cassette. Terminal When affixing a label to the cassette Be sure to affix a label only on the correct location so as not to cause malfunction of the unit. After using a cassette After use, please be sure to rewind the tape completely (to prevent picture and sound distortion). Return it to its case and store it in an upright position. Notes on the LCD Screen The LCD screen is manufactured using high-precision technology. The ratio of effective pixels is 99.99% or more. However, there may be some tiny black points and/or bright points (red, blue, green or white) that constantly appear on the LCD screen. These points do not affect the recorded picture in any way. Do not place this unit with the LCD screen pointing toward the sun. Otherwise, the unit may be damaged. The backlight used in the built-in LCD monitor deteriorates with prolonged use. If the brightness of the LCD monitor cannot be adjusted, consult your Sony dealer. To clean the LCD screen To remove dirt or to clean fingerprints from the LCD screen, use an LCD cleaning kit (not supplied). Notes on the Video Cassettes If the cassette memory function does not work Reinsert the cassette a few times. The terminal portion of the cassette may be dusty or dirty. About Moisture Condensation If the unit or cassette is brought directly from a cold to a warm location, moisture may condense inside or outside the unit or tape. If you use the tape or video heads in this condition, the tape may adhere to the head drum, and the video heads or the tape may be damaged, or a malfunction may occur. 74 (GB) Chapter 6 Maintenance Chapter 6 Maintenance