Teac A 3300 SR A 2300 SR Service Manual

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1. GENERAL DESCRIPTION

The TEAC A-3300/A-2300 series tape decks have earned an enviable reputation for quality since
their first introduction years ago. Over the years various design improvements have been incorpo.
rated in the basic model to keep these decks abreast of the advances in tape technology and to
fulfill the needs of OUI growing range of knowlegeable customers.

The A-33OOS/A-23OOS and A-33OOSX/Av23OOSX followed, building on the tested and proven
reliability of the original models and offering ever increasing versatility and user satisfaction.

Now TEAC introduces the new A-33OOSR/A-23OOSR which have the added capability of reverse
playback together with several sophisticated circuit improvements to keep these new models at
State-of-the-art reliability.

The basic design of the A-33OOSR/A-23OOSR is highly similar to that of the A-33OOSX/A-23OOSX,
therefore, information in this manual may be applied to the A-33OOSX/A-23OOSX also.

A-33OOSR A-23OOSR

- TABLE OF CONTENTS -

1. GENERAL DESCRIPTION ................ 3

2. SPECIFICATIONS AND SERVICE DATA ...... 4

3. TOOLS FOR TESTING AND MAINTENANCE . . . 6

4. PARTIAL DIS-ASSEMBLY ................ 7

5. TAPE TRANSPORT PARTS LOCATION ....... 9

6. HEAD REPLACEMENT AND ALIGNMENT ..... IO
- MECHANICAL -

7. MEASUREMENT AND ADJUSTMENT ........ ll
- MECHANICAL r

8. MEASUREMENT AND ADJUSTMENT ........ l4
-- ELECTRICAL 7

9. SERVICING AND MAINTENANCE .......... 21

IO. SIMPLIFIED SCHEMATIC WITH LEVEL
INDICATIONS ........................ 22

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DIMENSIONS

A-33OOSR

A-23OOSR

357mm mm
"42;: u: 51,6r

3. TOOLS FOR TESTING AND MAINTENANCE

A minimum of the following tools and test instruments are required for measuring and adjusting to
obtain optimum performance. Regular maintenance tools will be adequate for those not listed here.
If any test instrument listed here is not available, a close equivalent can be used.

WOW AND FLUTTER METER ........

AC VTVM ......................
DIGITAL FREQUENCY COUNTER . . . .
BAND-PASS FILTER ..............
OSCILLOSCOPE .................
AF OSCILLATOR ................
ATTENUATOR ..................
DISTORTION ANALYZER ..........
TOOLS ........................

HEAD DEMAGNETIZER ...........
TEAC TEST TAPE ................

TEAC EMPTY REEL ..............

Meguro Denpa Sokki K.K., Model MK-668C or D &
R Co., Model FL-4B
Hewlett-Packard Co., Model 400E (0.1 mV 7300V)
Range; 10 Hz - 100 kHz
1 kHz narrow band-pass type
General Purpose
10 HZ - 100 kHz
General Purpose
Basic Freq. 400 Hz/l kHz
Spring scale; 0-4 kg (048 lbs)
0-1 kg (0-2.2 lbs)
Hex head Allen Wrench,
Plastic alignment tool,
Load resistor non-inductive type 8 ohm/ l W
TEAC E-3 or equivalent
YTT-IOOZ (3-3/4 ips), YTT-1()03 (7»1/2 ips)
for Playback Alignment test,
YTT-8013 and YTT-8023 for Recording test,
YTT-2002 (33/4 ips), YTT-2003 (7-1/2 ips)
for Tape Speed and Wow/Flutter test
RE-702 (2.5" dia. hub), RE-701 (4" dia. hub)