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 13 (click to view)
C
YES
Does FE1 signal appear? IC 801
59
pin NO Defective IC 801. Open pick diode
YES
Does FZC signal (focus zero cross signal) appear at pin 31 of IC 801, ISTAT (SENSE) terminal?
FER ISTAT(SENSE)
NO
Defective IC 801.
(Focus servo turns ON by FZC signal of FOK mod.)
YES
Does SMON signal appear at pin 73 of IC 802? Does SMPO signal appear at pin 75 of IC 802? YES
NO
Defective Pattern between IC 801 and IC 802.
Is drive voltage applied to disk motor? NO Defective IC 801, 803 and/or peripheral circuit.