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Excellent!! Got what I need and very fast!! Thank You
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Manual acquired with good resolution, complete in all its pages, very good policy of the folder where are saved all products purchased.
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Service manual very complete and clear. It was very helpfull for my work.
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This is the 2nd time I download manuals from this website and I can say it's what I was expecting. It contains schematic, layout (decent quality), short description, parts and dissasembly instructions. I recomend it for anyone who wants to repair/modify this device.
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Very useful Service Manual! With it I was able to identify the damaged pots in my old amplifier, purchase the adequate replacements and make myself the repair.
I have again my old amplifier, still a very good one that I will keep for as many years as I can!
Thanks to Owner Manuals!
ELECTRICAL TROUBLESHOOTING -15/17
(3) No sound (Hi-Fi Model Only)
No sound YES Check the Vcc of IC751 Pins 1, 19, 33. YES Check the Tuner SiF signal at IC751 Pin 2. YES Check the oscillator of IC751 Pins 5, 6. YES Check the Audio of IC751 Pins 30, 31. YES Check the Audio of IC801 Pins 2, 3. YES Check the Audio of IC801 Pins 16, 17. YES Check the signal flow from IC801 pins 18, 19 to JK901 Pins 1, 3. NO Check the IIC Clock and Data at IC801 Pins 42, 43. NO Check the signal flow from IC751 Pins 30, 31 to IC801 Pins 2,3. NO Check the IIC Clock and Data at IC751 Pins 12, 13. NO Replace X751. NO Check the Tuner Audio of TU701 Pin 22. NO Check 5V power.
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