Teac A-300 - Test Equipment Requirements; Torque Meters and Scales; Measurement Instruments; Other Test Tools

TABLE OF CONTENTS
1. Test Equipment Required ............. 2 5, Mechanical Checks and Adjustments ...... 9
5-1. Take-up & Supply Torque ...........-. 9
2. Specifications & Service Data ........... 3 5-2. Fast Forward & Rewind Torque ......... 9
5-3. Pinch Roller Pressure... 2... 2. ee eee 9
TEAC Test Tape... 0... eee ee 3 5-4, Tape Speed/Wow and Flutter ........... 10
3. Parts Location .......... 0002-00000. 5 6. Electrical Chekcs and Adjustments........ 11
6-1. Playback Performance .............04. 11
4, Itlustrated disassembly procedures ........ 6 6-2. Monitor Performance .............-5- 13
4.1, External Parts 2.2.0... .0...0c..0.00000- 6 6-3. Recording Performance .............-. 14
4.2. Cassette Damper (Damper Cord Stringing)... 6 6-4, Adjustment Location ..............0- 20
4.3, Cassette Holder Ass’y .............0.. 6
4.4, Heads and pinch rollers ............... 7 7. Block Diagram ...... in deft ae at aes Ste tagey on 21
4.5, Reel Tablesi a cescc.e onc oa tho ee aeceeacre 7
4-6. Brake Plate Ass’y ............200000. 7 8. Eevel Diagram 2.440 eck os ee obese Oakes 21
4-7. MOtobs ax 42d tiled ge 884 see Fons 8
4-8, Capstan Drive Assy .............000. 8 9. Voltage and Frequency Setting .......... 23
4-9, Lubrication vc ..cg shee eiaiee sy oP RSS 8
4-10, Ilder/Tension Pulley Ass’y ............. 8
* Noise reduction circuit made under license from Dolby
Laboratories Inc. The word “Dolby” and the Double-D
symbol are trademarks of Dolby Laboratories Inc.
1. TEST EQUIPMENT REQUIRED
1. Cassette Torque Meter: For take-up check: 0 ~ 100 g-cm (0 ~ 1.4 02-inch)
For fast forward & rewind torque checks: 0 ~ 160 g-cm (0 ~ 2.2 02-inch) |
NOTE: When ordering Cassette Torque Meter, allow for longer delivery time that is required for it.
2. Spring scale: For Pinch Roller pressure check: 0 ~ 500 g (1.1 Ibs)
3. Wow/flutter meter: MEGURO DENPA SOKKI K.K., Model MK-668A :
4, Frequency counter: Digital type, capable of 10 Hz to 100 kHz indication. fore
5. AF oscillator: 10 Hz ~ 100 kHz
6. AC Voltmeter: 0.1 mV ~ 300V
7. Attenuator: General Purpose
8. Distortion analyzer: Basic frequency 400 Hz/1 kHz
9. Oscilloscope: General Purpose
10. Band-pass filter: 1 kHz narrow band-pass type
11. Test load resistor: Non inductive type 8 ohm/1 W
12. Plastic alignment tool:
13. Head demagnetizer: TEAC E-3 or equivalent 5
14. Cleaner: TEAC TZ-261 Tape Recorder Cleaner kit or pure alcohol §
15. Oil: TEAC TZ-255 Oil kit or equivalent
Fig. 1-1 Plastic Alignment Too!