TOA Electronics BA-800 manual Cassette Player Unit CU-800 Replacement, Maintenance

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9.CASSETTE PLAYER UNIT (CU-800) REPLACEMENT

Revolving parts of a unit mechanism are impaired with extended use, downgrading the sound quality. The CU- 800's life is approximately 2,000 hours, which can be made 4,000 hours (500 days for 8 hours per day) by using two units alternately. Whenever possible, attempt to use both units of the BA-800, BA-806 or BA-823 to

make overall unit life longer. If the unit is used for more than 1,000 hours and the sound quality deteriorates,

replace it with a new unit. For cassette player unit (CU-800) replacement, contact your nearest TOA dealer.

10. MAINTENANCE

Cleaning the head section

The head section is comprised of the heads, capstans and pinch rollers, and with extended use these parts

accumulate dust, dirt, and grease easily as the tape runs. If this assembly gets dirty, the contact between the tape

and the surface of the heads is impaired and this not only downgrades the sound quality, but causes a tape twist

around the pinch roller and capstan. To prevent this, clean the head section and surrounding parts regularly once a month.

Demagnetizing the heads

The recording head becomes magnetized when you use the player for prolong periods of time. This results in noise

being generated and the treble dropping off. The head should therefore be regularly demagnetized with the commercial head eraser.

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Contents Operating Instructions BA-823Harmful interference to radio communications Contents User Precautions Cassette Tapes Nomenclature Stereo Line Output Connector Link Input Connector SignalMonaural Line Output Terminal Peak Indicator Red BA-806 Front View Power SwitchTape Volume Control Microphone Volume Control Signal Indicator GreenSpeaker Output Terminal Link Input Terminal Control UseBA-823 Front View Power Switch Link Input Terminal Control BA-800 Connection Examples ConnectionsMicrophone BA-806 Connection ExamplesBA-823 Connection Example Connection to the 25V terminal Speaker Connections BA-823 Timer Connections BA-800, BA-806 and BA-823Stop Operation Operation BA-800, BA-806 and BA-823Playback Playback OperationTimer ON/OFF Control AGC Circuit BA-800, BA-806 and BA-823Tape Ejection and Loading Signal and Peak Indicators BA-806 and BA-823 Microphone Announcements BA-806 and BA-823Microphone-Activated Muting Circuit BA-806 and BA-823 Track Sequence Selection BA-800, BA-806 and BA-823 Alternate A-A-B-B PlaybackAlternate A-B-A-B Playback Connections Expansion using one BA-800Expansion using two BA-800s Example Playback OperationExample Operation of an Expanded SystemPress the stop button of the component in play mode Timer Connection When Expanded Timer Connection ExampleBlank Skip Function BA-800, BA-806 and BA-823 Fault Indication BA-800, BA-806 and BA-823Demagnetizing the heads Cassette Player Unit CU-800 ReplacementMaintenance Cleaning the head sectionAre weak TroubleshootingMIC BA-803,806 BA-800TOA Corporation