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A great copy of the manual, and the only one I could find anywhere on the net! The circuit diagrams are easily readable, all component values marked and easy to see. A highly appreciated download!
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Great Manual. This manual is available no where else. It was exactly what I was looking for.
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The TEAC A-1500's Service Manual was instrumental in reviving this classic reel-to-reel. Not only does it have the schematics, exploded parts diagram and parts list, it also provided mechanical adjustment information that approximate factory default settings.
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This service manual was determinant to enable to fix my Alpine Amplifier. I am pleased with my purchase. For a 5 star rating I would like to see a higher resolution scan of the printed circuit board lay-out because the gray scale grafics was dificult to see. Also some schematic diagrams were scanned at a slight angle. Never the less, it had all information I needed to troubleshoot and service my equipment.
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Complete manual, the good quality of reproduction allows enlarged print-out of the schematic diagram in the size it probably had in the original print edition and which is necessary for practical use.
3. Mode: Playback
test tape P-4-A100 (10kHz, �10dB) oscilloscope MD OUT
Tape Speed Adjustment (Deck A) Note: Set the test mode using the following method and begin tape speed adjustment. In the test mode, the speed will switch to double speed or normal speed each time the HI-DUB button is pressed. Procedure: With the power turned ON, press the p button, ENTER/NEXT button, and DISC 3 button simultaneously. (The �CD TABLE INDICATOR� on the fluorescent display tube will blink while in the test mode.) To exit the test mode, press the 1/u button.
Waveform of oscilloscope
set
1. Insert the WS-48B into deck B. 2. Press the ( button of deck B. 3. Press the HI-DUB button and play the tape at double speed. 4. Adjust RV1001 of the LEAF SW board so that the reading of the frequency counter becomes 6000 ± 180 Hz. 5. Press the HI-DUB button and play the tape at normal speed. 6. Adjust RV1002 of the LEAF SW board so that the reading of the frequency counter becomes 3000 ± 90 Hz. Adjustment Location: LEAF SW board
in phase
45° good
90°
135°
180° wrong
4. After the adjustments, apply suitable locking compound to the parts adjusted. Adjustment Location: Playback Head (Deck A) Record/Playback/Erase Head (Deck B)
Sample Value of Wow and flutter W.RMS (JIS) less than 0.3% (test tape: WS-48B) Playback Level Adjustment (Deck A, Deck B) Procedure: Mode: Playback
test tape P-4-L300 (315Hz, 0dB) set level meter
Reverse
Foward
MD OUT
Deck A is RV311 (L-CH) and RV411 (R-CH), deck B is RV301 (L-CH) and RV401 (R-CH) so that adjustment within the following adjustment level. Adjustment level: CN301 playback level: 301.5 to 338.3 mV (�8.2 to �7.2 dB) level difference between the channels: within ± 0.5 dB Adjustment Location: AUDIO board
Adjustment Location [LEAF SW BOARD]
RV1001(High Speed) RV1002(Normal Speed)
RV1002
RV1001
� 15 �
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