Teac A-2300SD - Page 2

—CONTENTS
1. General Description.
3
9.
Measurement and Adjustment .14 ~ 19
2. Service Data .
4
—Electrical—
3.
Tools for Testing and Maintenance.
5
9-1
Adjustment Locations
4.
Partial Disassembly .6~7
9-2
Adjustment Sequence
4-1
Removing Wooden Sides and Rear Panel
9-3
Power Supply Check and Adj.
4-2
Head Assembly Removal
9-4
Playback Head Azimuth Adj.
4-3
Removal of Capstan Motor
9-5
Specified Output level Setting
4-4
Removal of capstan Assembly
9-6 VU Meter Level Set
4-5 Removal of Reel Motor
9-7
Frequency Response —Playback—
4-6
Removal of Tension Arms 9-8
Phones Output Check
5.
Tape
Transport Parts Location .
8
9-9 Monitor Level Setting
5-1
TEAC Maintenance Fluids 9-10
Specified Input Level Setting
6.
Head
Replacement and Alignment.
9
9-11
VU Meter Check
6-1 Head Replacement
9-12
CAL TONE Level Adj.
6-2
Head Adj. Screws and Head Wiring 9-13
MIC Input Level Check
6-3
Head Alignment 9-14
MPX Filter Response Check
6-4
Mis -Alignment of the Head 9-15
Bias Trap Adj.
—Example —
9-16 Bias Leakage Check
7.
Measurement and Adjustment .10 ~
12
9-17
Record Head Azimuth Adj.
-Mechanical— 9-18
Bias Adj.
7-1
Pinch Roller Pressure
9-19
Rec EQ #1 Level Set
7-2 Brake Torque
9-20
Overall Frequency Response
7-3 Back Tension
9-21
Rec Bias #2 Frequency Response Check
7-4 Take-up Torque
9-22
Rec EQ #2 Level Set
7-5
Reel Height Adjustment
9-23
Monophonic Recording
7-6 Tape Speed
9-24
Signal-To-Noise Ratio (Playback)
7-7
Flutter 9-25
Signal-To-Noise Ratio (Overall)
7-8
Voltage and Frequency Conversion
9-26
Track-To-Track Cross Talk Rejection
8. Simplified Diagram .
13 9-27
Channel-To-Channel Cross Talk Rejection
and Level Diagrams
9-28
Optimum Erasure Measurement
9-29
Dolby Encoder Check (Playback)
9-30
Dolby Decoder Check
9-31
Dolby NR Check
10 .
Troubleshooting. 20
*11.
Exploded Views and Parts List.24 ~ 30
* 12.
PC Board Section.32 ~ 34
* For more detailed contents of Parts List, see page 22.
2