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Great tape deck manual!
I'm very positively surprised, because it is a very long manual, lot of pages, drawings, diagrams, description of how to make the alignment and adjustment procedures.
It is as good as the old "Naka" manuals from the 1970's - if somebody have seen them, they know what I mean by that.
I recommend to buy this very much !
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I am a vintage hifi collector. No way to fix that device without the appropriate service manual...thanks to your site I got it and every thing is easier now. I got the manual right after ordering: fast cheap accurate ... thank you
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Wonderful job clear. Qick fantastic. These people are really good. If even a problem arise they are wonderful assisting you. These scheme is so net despite this is a very old TV. Thank you for everything!!!!!!!!
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Detailed schematic diagram, manual for professionals
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Good service manual,exploded view,adjusment and test point locations,head alignment,mechanical checks and adjusments,all perfect.
3.4
SYSCON CIRCUIT
Note: � When perform this adjustment, remove the Mechanism assembly. 3.4.1 Timer clock
Signal Mode Equipment (A) (B) (C) � No signal � EE � Frequency counter [HR-J271MS/J471MS] � IC3001 pin 29 � IC3001 pin 57 � C3015 + and � [HR-J677MS/J777MS] � IC3001 pin 61 � IC3001 pin 24 � C3026 + and �
Measuring point (D1) (D2) (D3) Measuring point (D1) Short point (D2) (D3) Adjustment part (F)
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[HR-J271MS/J471MS] � C3018 (TIMER CLOCK) [HR-J677MS/J777MS] � C3025 (TIMER CLOCK) � 1024.008 ± 0.001 Hz (976.5549 ± 0.0010 µsec)
Specified value
(G)
[HR-J271MS/J471MS] (1) Connect the frequency counter to the measuring point (D1). (2) Connect the short wire between the short point (D2) and GND. (3) Short the leads of capacitor (D3) once in order to reset the microprocessor of the SYSCON. (4) Adjust the Adjustment part (F) so that the output frequency becomes the specified value (G). [HR-J677MS/J777MS] (1) Connect the frequency counter to the measuring point (D1). (2) Connect the short wire between the short point (D2) and Vcc (5V). (3) Short the leads of capacitor (D3) once in order to reset the microprocessor of the SYSCON. (4) Disconnect the short wire between the short point (D2) and Vcc then connect it again. (5) Adjust the Adjustment part (F) so that the output frequency becomes the specified value (G).
3-3
$4.99 HRJ471MS 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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