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.
Text excerpt from page 24 (click to view)
B CD C.B
TP4
1
IC404
TP3
IC401
1
SFR430
A MAIN C.B
L801
TP2
2
3
< CD SECTION >
1. Focus Bias Adjustment Make the focus bias adjustment when replacing and repairing the optical block.
Oscilloscope (DC range)
EYE PATTERN must be CLEAR and MAX VOLT / DIV: 200mV TIME / DIV: 0.5µs MAX
0V
+
TP3 (RF) TP4 (VREF)
< TAPE RECORDER SECTION >
2. Bias Adjustment � Test tape: TTA-630 � Test Point: TP2 � Adjustment location: L801 � Method: L801 .............................................................. 85kHz±2kHz 3. Azimuth Adjustment Condition: � Test tape: TTA-320 � Test point: PHONE JACK � Adjustment location: Azimuth adjustment screw Method: Play back the test tape and adjust the screw so that the output is maximum.
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1) Connect an oscilloscope to the test point TP3 (RF) and TP4 (VREF). 2) Turn on the power switch. 3) Insert test disc TCD-782 (YEDS-18) and play back the second composition. 4) Adjust SFR430 so that RF signal of the test point TP3 (RF) is MAX and CLEAREST.
