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The manual is an excellent reproduction with complete schematics, made troubleshooting and repair a simple process.
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Up to now you are the BEST! Prompt-efficient and so reasonable ! I have been after SONY service manual for quite some time !Thank you very much ! I can recomend your service to
all my collegagues ! V.Bergfield .
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This is a very good quality print (scan) of the original SONY service manual. The original from Sony is on very thin paper. Nevertheless it is very clear and sharp and excellent readable. I'm very satisfied to have now this rare document. I've looking for it many years (infrequent). It contains very detailed circuit diagrams, exploded views, part lists, PCB view with good readable connection lines. Very recommended.
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A complete manual with all the needed details of calibrations and service instructions about the radio receiver.
A big deal.
Many thanks !
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Fast delivery and good quality copy. To be recommended
THEORY OF OPERATION
4-5. Detectors
(1) Home Position Detector A photo-interrupter is used in the home position detector, which is set at the left side of the frame unit. ON/OFF signals are generated according to the position of the shield plate mounted at the base of the carriage, and the printing position is determined by these signals. Paper Out Detector Paper out detector is located at the paper insertion slit. When paper is present, the photo transistor with the reflecting type photo sensor goes on. As soon as paper runs out, this transistor goes off, outputting a paper empty signal.
(2)
Fig. 2-29 Home Position Detector (3)
Fig. 2-30 Paper Out Detector
Bail Lever Position Detector The leaf switch is open when the bail roller is in contact with the platen roller, and it is closed when the bail roller is separated from the platen roller. Release Lever Position Detector The leaf switch is closed when the release lever is in the Friction position, and is open in the Tractor position.
(4)
Fig. 2-31 Bail Lever Position Detector
Fig. 2-32 Release Lever Position Detector
� 38 �
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