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There are currently no product reviews.
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It is an very good and clear scanned service manual.
very recommended.
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Easy to order the manual. Good quality and fast delivery.
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The Service Manual for Sansui AU-9500 was very helpfull, in complete and in good printable condition.
Thanks.
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Dear Sir,
Document is original service document of sharp. I had a problem with the door contacts. Fuses where blown. With the manual in a few minuts is was clear what the problem was.
Manual was of great help.
With kind regards,
Martie Verhoeven
The Netherlands.
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The scan is clear and well readable with very few weaker spots, usually on black background with white letters, but with enough zoom those spots can be read.
Printout is clear, the manual is complete and has all pages scanned.
I would give 5 stars, except that it is not in color, and the schematic and PCB pages are scanned on multiple pages. The document is locked (except printing) so the pages can not be extracted to compose them together for printing on the large plotter
It is worth the price tag.
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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