Very good manual, in depth and complete. Only criticism is that some of the circuit diagrams are slightly blurry and hard to follow for long periods of time, but this is to be expected. Perfect for any maintenance required. Also contains the wiring diagrams of the control cable for constructing extensions.
Excellent service from Owner-Manuals.com, good prices and quick turn around. The supplied PDF was good enough quality to be enlarged sufficiently to read component values.
Very complete shop manual. It contains everything needed to troubleshoot bascially any problem. Instructions, diagrams, schmeatics, illustrations... it's all there. Highly recommended!
Text excerpt from page 20 (click to view)
TROUBLE SHOOTING GUIDE
E-2. PREAMP IN THE PAYBACKMODE
Is signal from heads fed to pin1 and 3 of P401?
YES NO
Check the DRUM and DECK mechanism
Is ON/OFF5V from pin76 of IC301 supplied to pin131 of IC401 at 5V?
YES
NO
Check the ON/OFF 5V
Is REC(H) from pin79 of IC501 supplied to pin11 of IC401 at 0V?
YES
NO
Check Q503, Q504 and adjacent circuit
Is V.SW pulse from pin46 of IC501 supplied to pin4 of IC401?
YES
NO
Check SERVO/SYSCON
Is the signal from pin1 and 3 of P401 fed to pin17 or 19 of IC401?
YES
NO
Change IC401
Is the signal from pin7 of IC401 fed to C416?
YES
NO
Check Q401 and adjacent circuit
TO LUMINANCE SIGNAL IN THE REC MODE
NOTE : 1) REC(H) : "HIGH" in the REC mode. "LOW" in the EE and PB mode