SONY DNW-90WS
Service Manual

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1-12. Cleaning when the Heads are Clogged 1-12-2. Cleaning by Cleaning Cloth

1-12-2. Cleaning by Cleaning Cloth
m . Turn off the power before cleaning. . Each block in the mechanical deck consist of precision parts and are adjusted precisely. Be careful not to damage each part and to apply an excessive force during cleaning. . Do not touch the greased portions during cleaning. If grease attaches to a cleaning cloth, replace the cleaning cloth by a new one. If a cleaning cloth smeared with grease is used, grease may attach to the places where it should not. . Do not insert a cassette tape before a cleaning fluid completely evaporate after cleaning. . Be sure to rotate the upper drum counterclockwise during cleaning. Clean the upper drum along the circumference. If the upper drum is cleaned in the vertical direction, the rotary heads may be damaged. Tools . Cleaning cloth : 3-184-527-01 . Cleaning fluid : 9-919-573-01 n Never use a cotton swab to clean the rotary heads.

Cleaning the Video Heads 1. Remove the front lid and outside panel. (Refer to section 1-6.) 2. Press the cleaning cloth moistened with cleaning fluid slightly against the position of the rotary heads installation height. 3. Rotate the upper drum slowly in the counterclockwise direction by hands and clean it. 4. After cleaning, wipe the upper drum with dry cleaning cloth.

Cleaning cloth Upper dram

Video heads

Cleaning the Stationary Heads and Tape Guides 1. Remove the front lid and outside panel. (Refer to section 1-6.) 2. Wipe the stationary heads and tape guides using the cleaning cloth moistened with cleaning fluid. 3. After cleaning, wipe the stationary heads and tape guides with dry cleaning cloth.

DNW-7/90/90WS

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