TOA Electronics BA-800 User Manual

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OPERATING INSTRUCTIONS

DOUBLE CASSETTE PLAYER

BA-800

DOUBLE CASSETTE PLAY AMPLIFIER

BA-806

DOUBLE CASSETTE PLAY AMPLIFIER

BA-823

BA-800

BA-806

BA-823

Please follow the instructions in this manual to obtain optimum results from this unit. We also recommend that you keep this manual handy for future reference.

TOACorporation

CAUTION

TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

THE LIGHTNING FLASH WITH ARROWHEAD WITHIN A TRIANGLE IS INTENDED TO TELL THE USER THAT PARTS INSIDE THE PRODUCT ARE A RISK OF ELECTRIC SHOCK TO PERSONS.

THE EXCLAMATION POINT WITHIN A TRIANGLE IS INTENDED TO TELL THE USER THAT IMPORTANT OPERATING AND SERVICING INSTRUCTIONS ARE IN THE PAPERS WITH THE APPLIANCE.

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.

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CONTENTS

1. USER PRECAUTIONS

4

2. CASSETTE TAPES

5

3. NOMENCLATURE

 

3.1. BA-800 Front and Rear View

6 ~ 7

3.2. BA-806 Front and Rear View

8 ~ 9

3.3. BA-823 Front and Rear View

10~11

4. CONNECTIONS

 

4.1. BA-800 Connection Example

12

4.2. BA-806 Connection Example

13

4.3. BA-823 Connection Example

14

4.4. BA-806 Speaker Connection

15

4.5. BA-823 Speaker Connection

16

4.6. Timer Connection

16

5. OPERATION

 

5.1. Playback

 

(1) Playback Operation

17

(2) Stop Operation

17

(3) Tape Ejection/Loading

18

(4) Timer ON/OFF Control

18

(5) AGC Circuit

18

(6) Microphone Announcements

19

(7) Microphone-Activated Muting Circuit

19

(8) Signal and Peak Indicators

19

5.2. Track Sequence Selection

 

(1) Alternate A-A-B-B Playback

20

(2) Alternate A-B-A-B Playback

20

6. EXPANSION

 

6.1. Connections

 

(1) Expansion Using One BA-800

21

(2) Expansion Using Two BA-800's

22

6.2. Operation of An Expanded System

 

(1) Playback Operation

23~24

(2) Stop Operation

24

6.3. Timer Connection When Expanded

25

7. FAULT INDICATION

26

8. "BLANK SKIP" FUNCTION

26

9. CASSETTE PLAYER UNIT (CU-800) REPLACEMENT

27

10. MAINTENANCE

27

11. TROUBLESHOOTING

28

12. SPECIFICATIONS

28~29

13. ACCESSORIES

30

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1. USER PRECAUTIONS

Avoid installing the unit near heaters, as well as locations exposed to direct sunlight as this may discolor or deform the unit's exterior.

Avoid using the unit in humid or dusty locations. Also, do not block air exhaust vents located on the top and side panels to prevent equipment failures. (BA-806/BA-823)

Keep beverages away from the unit as they may be spilt. Also, do not insert combustibles or metallic objects, such as hairpins and needles, into the unit to prevent fires, electrical shocks and equipment failures.

To avoid severe electrical shocks and possible catastrophic damage, never open the unit nor touch its internal components.

Always take hold of the plug to unplug it from the power outlet. Do not bend the power cord excessively nor place any heavy equipment on the cord as the cable may be damaged, resulting in fires or electrical shock.

Unplug the power cord from the wall outlet if the unit is to be stored for two weeks or more.

Avoid installing the unit on the unstable table or in vibratory locations as this may damage the unit or badly influence its operation.

Use a soft cloth to wipe off dust and grease from the front panel and case. When these parts are very dirty, dip the soft cloth in a small amount of neutral detergent, remove the dirt and wipe with a dry cloth. Never use thinner, benzine, alcohol, or other solvents, which may damage the unit's finish.

Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. "DOLBY" and the double-D symbolare trademarks of Dolby Laboratories Licensing Corporation.

— 4 —

2. CASSETTE TAPES

Your tape player automatically detects the type of tape you are using, without having to switch a tape selector in accordance with the type of tape.

The following three different cassette tapes are usable:

(1)Normal tape

(2)Chrometape

(3)Metal tape

The C-120 tapes (120 minutes' recording time for both sides) and endless tapes are not recommended because their tapes are extremely thin and can often be slack or twist, leading to unstable operation.

The C-90 (90 minutes) and C-60 (60 minutes) are most commonly used.

To prevent damage of the tape and unstable operation, always store the cassette tapes in locations offering limited exposure to direct sunlight, high temperature, and magnetic effects (speakers and TV receivers).

If the slack or protruding tape is used, it may cause a tape twist around the pinch roller and capstan, or damage the tape. Before inserting the tape into the cassette player unit, take up the slack by inserting a pencil through the reel hub and turning it, as shown in the figure.

Good!!

Normal tape

Chrome tape

Metal tape

No!!

C-120

Endless tape

Good!!

C-90

C-60

No!!

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3. NOMENCLATURE

[BA-800] < Front View >

Power

Switch

 

 

Press this switch

to turn power ON. To turn power OFF, press this switch

again.

Power

Indicator

(Green)

 

Lights when the power is switched ON, and goes out when switched OFF.

Play Button

Press this button when playing back a tape. For details, refer to "Tape Playback" on p.17.

Stop Button

Press this button to stop the tape run.

Tape Travel Indicator (Green)

The indicator of a cassette player unit in operation lights. It flashes when the cassette player unit fails. Refer to "Fault indication" on p.26.

Eject Button

Press this button to eject the tape.

Blank Skip Switch

Set this switch to ON to use the "blank skip" function. Set it to OFF when not using the function. Refer to p.26 for this function.

Track Sequence Selection Switch

Selects tape playback order. For details, refer to p.20 "Track Sequence Selection".

Auto-Reverse Cassette Player Unit (CU-800)

Cassette Tape Receptacle

Dolby NR Switch (OFF/ON)

Set this switch to ON when playing a tape recorded with Dolby B-type NR.

— 6 —

[BA-800] < Rear View >

Monaural Line Output Terminal

Monaural Line Output Volume Control

Stereo Line Output Connector

AGC Switch

Setting this switch to ON maintains the playback output volume constant regardless of variations in the tape recording level. For details, refer to "AGC Circuit" on p.18.

Link Input Connector (Signal)

Link Switch (ON/OFF)

Set this switch to ON when expanding.

Be sure to set the switch to OFF if not expanded.

Link Input Terminal (Control)

[Note] : Use and for expansion using the BA-800. Refer to "Expansion" on p.21~22.

Timer Input Terminal

Connects to an external timer. Refer to p.16.

Power Cord

Plug this cord into the wall AC outlet (120V AC).

Ground Terminal

Grounding point for the unit.

— 7 —

[BA-806]< Front View >

Power Switch

 

 

Press this switch

to turn power ON. To turn power OFF, press this switch

again.

Power Indicator (Green)

Lights when the power is switched ON, and goes out when switched OFF.

Play Button

Press this button when playing back a tape. For details, refer to "Tape Playback" on p.17

Stop Button

Press this button to stop the tape run.

Tape Travel Indicator (Green)

The indicator of a cassette player unit in operation lights. It flashes when the cassette player unit fails. Refer to "Fault indication" on p.26.

Eject Button

Press this button to eject the tape.

Blank Skip Switch

Set this switch to ON to use the "blank skip" function. Set it to OFF when not using the function. Refer to p.26 for this function.

Track Sequence Selection Switch

Selects tape playback order. For details, refer to p.20 "Track Sequence Selection".

Auto-Reverse Cassette Player Unit (CU-800)

Cassette Tape Receptacle

Dolby NR Switch (OFF/ON)

Set this switch to ON when playing a tape recorded with Dolby B-type NR.

Tape Volume Control

Microphone Volume Control

Make sure to set this control to zero when no microphone is connected to the BA-806.

Signal Indicator (Green)

Lights green when a signal is transmitted to the speaker output terminal. Refer to p.19.

Peak Indicator (Red)

Lights red when the output to the speaker approaches a clipping level. If steadily lit, turn down the volume. Also refer to p. 19.

— 8 —

[BA-806]< Rear View >

Microphone Input Terminal AUX-1 Input Connector AUX-1 Volume Control AUX-2 Input Terminal AUX-2 Volume Control

AGC Switch

Setting this switch to ON maintains the playback output volume constant regardless of variations in the tape recording level. For details, refer to "AGC Circuit" on p.18.

Tone Control (Bass/Treble)

Line Output Terminal

Link Input Connector (Signal)

Link Switch

Set this switch to ON when expanding the BA-806 using the BA-800.

Be sure to set the switch to OFF if not expanded.

Link Input Terminal

(Control)

[Note]

: Use

,and

for expansion using the BA-800. Refer to "Expansion" on p.21~22.

Timer

Input

Terminal

Connects to an external timer for ON/OFF control. Refer to p.16.

Speaker Output Terminal

Connects to the speaker. For Details, refer to p.15 "Speaker Connections".

Power Cord

Plug this cord into the wall outlet (120V AC).

Ground Terminal

Grounding point for the unit.

— 9 —

[BA-823]< Front View >

Power Switch

 

 

Press this switch

to turn power ON. To turn power OFF, press this switch

again.

Power Indicator (Green)

Lights when the power is switched ON, and goes out when switched OFF.

Play Button

Press this button when playing back a tape. For details, refer to "Tape Playback" on p.17.

Stop Button

Press this button to stop the tape run.

Tape Travel Indicator (Green)

The indicator of a cassette player unit in operation lights. It flashes when the cassette player unit fails. Refer to "Fault indication" on p.26.

Eject Button

Press this button to eject the tape.

Blank Skip Switch

Set this switch to ON to use the "blank skip" function. Set it to OFF when not using the function. Refer to p.26 for this function.

Track Sequence Selection Switch

Selects tape playback order. For details, refer to p.20 "Track Sequence Selection".

Auto-Reverse Cassette Player Unit (CU-800)

Cassette Tape Receptacle

Dolby NR Switch (OFF/ON)

Set this switch to ON when playing a tape recorded with Dolby B-type NR.

Tape Volume Control

Microphone Volume Control

Make sure to set this control to zero when no microphone is connected to the BA-823.

Signal Indicator (Green)

Lights green when a signal is transmitted to the speaker output terminal. Refer to p.19.

Peak Indicator (Red)

Lights red when the output to the speaker approaches a clipping level. If steadily lit, turn down the volume. Also refer to p.19.

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