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!
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.
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.
Text excerpt from page 6 (click to view)
ADJUSTMENT
A MAIN C.B (BOTTOM VIEW)
VR1 VOL
SFR1 (2.4cm) SFR3 (1.2cm) J1 EAR PHONE
J4 DC3V 2 RPH
S4 TAPE SPEED 1.2 2.4 3
1
1. Head Azimuth Adjustment Setting: � Test tape: TTS-930 � Tape speed: 2.4 cm � Adjustment point: Head Azimuth Adjustment screw Method: Playback the 5 kHz signal of the test tape (TTS-930) and adjust screw so that the output becomes maximum. 2. Tape Speed Adjustment (2.4cm) Setting: � Test tape: TTS-900 � Volume: MAX � Adjustment point: SFR1 Method: Playback the test tape (TTS-900) and adjust SFR1 so that the tape speed is become 3000 ± 10Hz. 3. Tape Speed Adjustment (1.2cm) Setting: � Test tape: TTS-910 � Volume: MAX � Adjustment point: SFR3 Method: Playback the test tape (TTS-910) and adjust SFR3 so that the tape speed is become 3000 ± 90Hz.
PRACTICAL SERVICE FIGURE
Tape speed: Wow & flutter: Take-up torque: F.F torque: Rew torque: Back tension: S/N ratio: Noise level: Erasing ratio: Test tape: 3000 Hz ± 90 Hz Less than 0.65% (RMS) (2.4cm) Less than 0.65% (RMS) (1.2cm) 4 ~ 12 g-cm 30 ~ 150 g-cm 25 ~ 60 g-cm Less than 1.3 g-cm More than 50 dB (DC. PB) More than 26 dB (DC. R/PB) Less than 1.7 mV (DC.Vol Max. PB) Less than 18 mV (DC. Vol Max. R/PB) More than 40 dB (1 kHz) TTS-900 (Wow & flutter/Tape speed � 2.4 cm) TTS-910 (Wow & flutter/Tape speed � 1.2 cm) TTS-920 (Distortion/Output) TTS-930 (Azimuth) TTS-940 (REC/PB)