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There are currently no product reviews.
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Finally, i found one website, where i can download this service manual , and fix my hifi. The service manual is very good, and easy to download and to print.
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Complete and very useful. Could have benefited from a little higher resolution on the schematic and layout diagrams for improved legibility.
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Great Service Manual, Very Complete, as advertised, Perfect, Thanks!
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Good quality service manual.It has helped me to fix my FV1800,particularly for replacing the dial cord.The scheme is on A3 format and very readable.Thank.Olivier.
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This manual is complete and very readable.It was a great help for my two ICF5800L.The first one had the dial cord broken,and without the service manual it is impossible to replace it.Thank.Olivier.
RD-T70BU/RD-T50LB
Flow of functional operation until TOC read
Check Point
Power ON
Play Key
Slider turns REST SW ON.
Confirm that the voltage at the pin5 of CN705-1 is "H"\"L"\"H".
Automatic tuning of TE offset
Check that the voltage at the
Laser ON
pin40 of IC701 is + 5V?
Detection of disc
Automatic tuning of Focus offset Confirm that the Focus error S-cuve signal at the pin32 of IC701 is approx.2Vp-p Confirm that the signal from pin24 IC701 is 0V as a accelerated pulse during approx.400ms.
Automatic measurement of Focus S-curve amplitude
Disc is rotated
Tracking error waveform at TOC reading pin 20 of IC702(TE)
Approx. 1.8V VREF
Approx.3sec
Focus servo ON (Tracking servo ON)
Automatic measurement of Tracking error amplitude
Tracking Disc to be servo braked to stop on states Disc states TOC reading to rotate finishes Automatic measurement of TE amplitude and automatic tuning of 500mv/div 2ms/div Fig.1 TE balance Tracking servo off states
Confirm the waveform of the Tracking error signal. at the pin 20 of IC702 (R705) (See Fig.1)
Automatic tuning of Tracking error balance
Automatic tuning of Focus error balance
Automatic tuning of Focus error gain
Automatic tuning of Tracking error gain
TOC reading
Confirm the eye-pattern at the lead of TP713
Play a disc
1-15
 $4.99 RD-T70BU JVC
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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