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The item received was as described, as expected. I was pleased with the order. Thank you.
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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
Horizontal Drive /B+ Drive circuit
H/B+ Drive signal (square pulse) is generated from ICH01 pin 8/6. The H Drive signal is switching QH05. and H-drive trans amplify QH06�s base drive current. B+ Drive signal is amplified by push pull (QH02, QH03) amplifier, this amprified signal the switching B+ voltage is supplied horizontal deflection coil though coil(TH02)
* Refer to the Schemathics in the Page 65 (Schematic Diagram 4-4)
Brightness Blanking Reset Control CRT
* Refer to the Schemathics in the Page 65 (Schematic Diagram 4-4)
Change the Brightness level by controlling the G1.
1) In normal working condition, the G1 waveform is synchronized with the vertical sync. Since the purpose is to blank the vertical flyback scanning line when vertical is flyback, so the Clamp/Blanking pulse of ICH1 pin16 through QF07 is used to control it. 2) Brightness control is via the control at pin35 of ICM01(WT62P1) and through the control at QF04 and QF05 to control the DC level of G1
Focus CRT
* Refer to the Schemathics in the Page 65 (Schematic Diagram 4-4)
Dynamic Focus is used to get perfect focusing of each dot on the screen. There are H-Focus and V-Focus:
ICH01 Pin 32 outputs a parabolic waveform (H+V Focus). QF08,QF09,QF13 amplify this focus signal.
Vertical Deflection CRT
* Refer to the Schemathics in the Page 62 (Schematic Diagram 4-1)
Vertical deflection Saw-tooth waveform is provided by ICH01 pin12, 13 (VOUT1, 2) and Vout1, Vout2 is input to Vertical Amplified IC(KA2142) Pin 1,10 This Signal is Amplified by ICV01(KA2142) and output via out pin6 of KA2142
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