TOA Electronics BA-800 manual Troubleshooting, Are weak

Page 28

11.TROUBLESHOOTING

Although some failures can be traced to legitimate mechanical faults, some are in fact the results of improper maintenance, tape defects or lack of experience in operating the player. If you think that there is a failure, refer first to the following checklist.

-Is the BA-800, BA-806 or BA-823 properly connected to the speaker and other components ?

-Is the power cord securely plugged in the power outlet ?

-Are switches and volume controls placed in the proper positions ?

-Is the microphone switch set to ON ?

Symptom

Tape does not run.

No playback sound.

High frequencies

are weak.

Sound is unsteady. Excessive noise.

Cause

Remedy

AC cord is not plugged in.

Plug cord in correctly.

Tape is inserted improperly.

Remove tape and insert properly.

Output cords are connected improperly.

Connect cords correctly.

Tape volume control is set to leftmost

Turn control to suitable position.

position.

 

Heads are dirty.

Clean capstan and pinch roller with a commercial

Heads are magnetized.

cleaning tape.

Capstan is dirty.

 

Tape is old.

Renew the tape.

12.SPECIFICATIONS

<BA-800 >

Power Requirements

Power Consumption

Outputs.

Distortion

Frequency Response

S/N Ratio

Usable Tape

Tape Speed

Wow and Flutter

Playing System

Finish

Dimensions

Weight

120VAC, 60Hz.

8W

Mono line out : 600 1 V, balanced

Stereo line out : 10k 300 mV, unbalanced (L/R)

Less than 3% (Mono line out : 1000 Hz/1 V)

50~15,000 Hz

50 dB (Dolby NR : OFF) (AGC OFF)

60 dB (Dolby NR : ON) (AGC OFF)

Compact cassette tapes

4.76cm/sec

Less than 0.2% (WRMS)

Auto Reverse

Front panel : Aluminium, alumite process (black)/ABS resin Case : Steel color plate (black)

420(W)x97(H)x300(D)mm (16.6(W) x3.8 (H) x11.9(D)in.)

Approx. 6.2kg (13.7 Ib.)

* Specifications are subject to change without notice.

— 28 —

Image 28
Contents BA-823 Operating InstructionsHarmful interference to radio communications Contents User Precautions Cassette Tapes Nomenclature Link Input Connector Signal Stereo Line Output ConnectorMonaural Line Output Terminal BA-806 Front View Power Switch Tape Volume Control Microphone Volume ControlSignal Indicator Green Peak Indicator RedLink Input Terminal Control Use Speaker Output TerminalBA-823 Front View Power Switch Link Input Terminal Control Connections BA-800 Connection ExamplesBA-806 Connection Examples MicrophoneBA-823 Connection Example Connection to the 25V terminal Timer Connections BA-800, BA-806 and BA-823 Speaker Connections BA-823Operation BA-800, BA-806 and BA-823 PlaybackPlayback Operation Stop OperationAGC Circuit BA-800, BA-806 and BA-823 Timer ON/OFF ControlTape Ejection and Loading Microphone Announcements BA-806 and BA-823 Signal and Peak Indicators BA-806 and BA-823Microphone-Activated Muting Circuit BA-806 and BA-823 Alternate A-A-B-B Playback Track Sequence Selection BA-800, BA-806 and BA-823Alternate A-B-A-B Playback Expansion using one BA-800 ConnectionsExpansion using two BA-800s Playback Operation ExampleOperation of an Expanded System ExamplePress the stop button of the component in play mode Timer Connection Example Timer Connection When ExpandedFault Indication BA-800, BA-806 and BA-823 Blank Skip Function BA-800, BA-806 and BA-823Cassette Player Unit CU-800 Replacement MaintenanceCleaning the head section Demagnetizing the headsTroubleshooting Are weakMIC BA-800 BA-803,806TOA Corporation