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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!
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Clear and concise. Saved me a lot of time and money.
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Superb manual. Exactly what I ordered and made available in a very timely manner.
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very fast detailed and accurate hope to do business again
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This was precisely what I was looking for. Complete and good quality!
4-7. CONTROL circuits
(1) HORIZONTAL / VERTICAL OSCILLATION circuit The sync signal input to IC301 is phase-sifted and converted to the waveform in IC301. The pulse synchronized with the horizontal sync signal is output from pin 17 as horizontal drive pulse. The sawtooth wave synchronized with the vertical sync signal is output from pin 4. The pulse output from pin 17 generates a frequency locked to the input signal under the following conditions:
Q The horizontal sync signal is input to pin 26. R The vertical sync signal is input to pin 27. S The feedback pulse (AFC pulse) of the HORIZONTAL DEFLECTION OUTPUT circuit is input to pin 18.
IC301 is auto-sync system and adjusts the horizontal frequency automatically make the vertical sync signal input to pin 27 trigger. In case that the AFC pulse is not input, the output pulse from pin 17 is unlocked and the horizontal picture size changes with keeping it small.
IC301 pin 26: Horizontal sync signal input
IC301 pin 17: H-DRIVE pulse output
IC301 pin 18: AFC pulse input (Threshold level: approx. 2V)
Center voltage: 3.5V
IC301 pin 4: V-sawtooth wave output
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