Teac A 2300 SD Service Manual

Page 2

FPPT

--CO NTENTS-

General Description .................. 3 9.
Service Data ...................... 4
Tools for Testing and Maintenance ........ 5
Partial Disassembly .................. 6 ~ 7
4-1 Removing Wooden Sides and Rear Panel
4-2 Head Assembly Removal
4-3 Removal of Capstan Motor
4-4 Removal of capstan Assembly
45 Removal of Reel Motor
4-6 Removal of Tension Arms
Tape Transport Parts Location .......... 8
5-1 TEAC Maintenance Fluids
Head Replacement and Alignment .. ...... 9
6-1 Head Replacement
6-2 Head Adj. Screws and Head Wiring
6-3 Head Alignment
6-4 Mis -Alignment of the Head
-Example ~
Measurement and Adjustment ......... 10 ~ 12
~Mechanical-
7-1 Pinch Roller Pressure
72 Brake Torque
7-3 Back Tension
7-4 Take-up Torque
7-5 Reel Height Adjustment
7-6 Tape Speed
7-7 Flutter
7-8 Voltage and Frequency Conversion
Simplified Diagram ................. 13
and Level Diagrams
10.
as 1 l .
* 12.

Measurement and Adjustment ......... 14 ~ 19
-E|ectrical-

9-1 Adjustment Locations

9-2 Adjustment Sequence

9-3 Power Supply Check and Ad].

9-4 Playback Head Azimuth Adi

9-5 Specified Output level Setting

9-6 VU Meter Level Set

9-7 Frequency Response ~Playback#

98 Phones Output Check

9-9 Monitor Level Setting

9-10 Specified Input Level Setting

9-11 VU Meter Check

912 CAL TONE Level Adj.

9-13 MIC Input Level Check

9-14 MPX Filter Response Check

9-15 Bias Trap Adi.

9-16 Bias Leakage Check

9-17 Record Head Azimuth Adji

9-18 Bias Adj:

9-19 Rec E0 #1 Level Set

9-20 Overall Frequency Response

9-21 Rec Bias #2 Frequency Response Check

9-22 Rec E0 #2 Level Set

9-23 Monophonic Recording

9-24 Signal-T0~Noise Ratio (Playback)

9-25 Signal-ToANoise Ratio (Overall)

9-26 Track»To-Track Cross Talk Rejection

9-27 Channel-ToChannel Cross Talk Rejection

9-28 Optimum Erasure Measurement

9-29 Dolby Encoder Check (Playback)

9-30 Dolby Decoder Check

9-31 Dolby NR Check

Trouble Shooting ................... 20
Exploded Views and Parts List ......... 24 ~ 30
PC Board Section .................. 32 ~ 34

* For more detailed contents of Parts List, see page 22.

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