Great tape deck manual!
I'm very positively surprised, because it is a very long manual, lot of pages, drawings, diagrams, description of how to make the alignment and adjustment procedures.
It is as good as the old "Naka" manuals from the 1970's - if somebody have seen them, they know what I mean by that.
I recommend to buy this very much !
Text excerpt from page 16 (click to view)
Pin No. 73 74 75 76 77
Pin Name VDD5V VSS CONT6 CONT7 V/*P
I/O � � I/O I/O O
Description Microprocessor interface power supply. (2000pF or more path controller to be inserted at a point nearer to the pin between this pin and GND) Digital ground pin. Must be connected to 0V. General-purpose input/output pin 6. General-pirpose input/output pin 7. Rough servo/phase control automatic switching monitor output pin. �H� for rough servo and �L� for phase servo. Synchronization signal detection output pin. Outputs a high level when the
78
FSEQ
O
synchronization signal detected from the EFM signal and the internally generated synchronization signal agree.
79 80
DEFECT EFMO
I/O O
Defect pin. Which becomes an input pin after reset and can be controlled externally. This becomes the defect monitor pin under control by command. EFM signal output pin.