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There are currently no product reviews.
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The purchased manual is an high-quality scan of the original JVC paper-based Service Manual. The Service Manual includes the Owner´s Manual, so you do not have to buy both of them.
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It paid to find this Service Manual, couldn't find it anywhere else. Exactly what I wanted. Received within 24 hours.
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Complete manual with clear schematic diagrams and printed circuit board layouts of two variants of the headset and the transmitter an old and a new version.
Also shows how the headset and the transmitter is opened and how transmitter and receivers can be adjusted and where to measure.
I had no problems to repair the headset using this service manual.
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Excellent printing quality. A complete and very useful manual with all details.
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This is a great site. I placed my order and by the next am it was available for download. Had some problems with some missing copy on some pages. Once I brought the error to the OMC's attention, the issue was resolved. I'll come back again.
V_SHIFT Apply a circle test pattern via RF, change Vertical Shift by pressing �? /? � buttons till the test pattern is vertically centered. Horizontal line at the center of the test pattern is in equal distance both to upper and lower side of the picture tube. Check and readjust V_SHIFT item if the adjustment becomes improper after some other geometric adjustments are done. It can be adjusted between 0 � 63. SERVICE BLANK It is set ON to make vertical shift correctly centered. After adjustment of vertical shift, it is set as OFF to unblank half screen of the picture. VERT_AMP Apply a circle test pattern via RF, change Vertical Amplitude by pressing �? /? � buttons till horizontal black lines on both the upper and lower part of the test pattern become very close to the upper and lower horizontal sides of picture tube and nearly about to disappear. Check and readjust VERT_AMP item if the adjustment becomes improper after some other geometric adjustments are done. It can be adjusted between 0 � 63. UPPER LIN. Change Upper Linearity by pressing �? /? � buttons till all the size of squares of the test pattern become in equal size from the top of the screen to its bottom of the whole screen. Check and readjust UPPER LIN. item if the adjustment becomes improper after some other geometric adjustments are done. (especially after than VERT_S_CORR. adjustment) It can be adjusted between 0 � 126. LOWER LIN. Change Lower Linearity by pressing �? /? � buttons till all the size of squares of the test pattern become in equal size from the top of the screen to its bottom of the whole screen. Check and readjust LOWER LIN. item if the adjustment becomes improper after some other geometric adjustments are done. It can be adjusted between 0 �126. VERT_S_CORR. Change Vertical S-Correction by pressing �? /? � buttons till the size of squares on both the upper and lower part of test pattern become equal to the squares laying on the vertical center of the test pattern. Check and readjust VERT_S_CORR. item if the adjustment becomes improper after some other geometric adjustments are done. It can be adjusted between 0 � 126. HOR SHIFT Change Horizontal Shift by pressing �? /? � buttons till the the test pattern is horizontally in equal distance both to right and left sides of the picture tube. Check and readjust HOR SHIFT item if the adjustment becomes improper after some other geometric adjustments are done. It can be adjusted between 0 � 255. HOR LINEARITY Change Horizontal Linearity by pressing �? /? � buttons till all the size of squares of the test pattern become in equal size from the top of the screen to its bottom of the whole screen. Check and readjust HOR LINEARITY item if the adjustment becomes improper after some other geometric adjustments are done. (especially after than HOR S CORR adjustment) It can be adjusted between 0 � 255. HOR S CORR Change Horizontal S Correction by pressing Left/Right buttons till the size of squares on both the upper and lower part of test pattern become equal to the squares laying on the vertical center of the test pattern. Check and readjust HOR S CORR item if the adjustment becomes improper after some other geometric adjustments are done. It can be adjusted between 0 � 127.
42 AK53 D.O.C. Service Manual 22/03/2004
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