Superb rendition. Drawings (schematics) complete and unabridged. I do a great deal of vintage audio restoration. Documentation is essential for successful repairs. I have found sources over the years that offer good documentation, but rarely all that is necessary. Owner's Manuals has filled that void with complete and legible documentation. They have narrowed my "favorites" to a more manageable collection. This Denon manual in particular contained the latest revisions level, and offered alterations favorable to updating the item. The Illustrated Parts Breakdown (IPB) was well enough detailed to simplify part symbols and physical locations. You will not be disappointed!
very fast detailed and accurate hope to do business again
Text excerpt from page 5 (click to view)
SECTION 3 ELECTRICAL ADJUSTMENT (VHS)
3.1 Syscon circuit Note: � When perform this adjustment, remove the Mechanism assembly. 3.1.1 Timer clock
Signal Mode Equipment (A) (B) (C)
Measuring point (D1) Short point (D2) (D3) Adjustment part (F) Specified value (G)
� No signal � EE � Frequency counter � IC3001 pin 61 � IC3001 pin 24 � C3026 + and � � C3025 (TIMER CLOCK) � 1024.008 ± 0.001 Hz
(976.5549 ± 0.0010 µsec)
(1) Connect the frequency counter to the measuring point (D1). (2) Connect the short wire between the short point (D2) and Vcc (5V). (3) Short the leads of capacitor (D3) once in order to reset the microprocessor of the SYSCON. (4) Disconnect the short wire between the short point (D2) and Vcc then connect it again. (5) Adjust the Adjustment part (F) so that the output frequency becomes the specified value (G).