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Exactly what was needed to assess the product - excellent value and great service
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A site where discontinualed schematic diagrams and back dated information can be found on discontinued radios tv's and any electronic equipment can be found. Newer manuals either Service and operating manuals. Radio amateurs should find this site a great source for ham radio equipment manuals. I will return to this site should I need information on any electrical equipment. priced easy to download in a PDF format and print pages need to undertake the repair.
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Quality scan of the original. All the detail necessary to troubleshoot, repair and adjust the unit. I'm sure I will be downloading more manuals in the future as the need arises.
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Exactly as described, a Service Manual complete with the schematics and PCB layout delivered in a timely manner. Many thanks for the great service.
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some of the writing is a bit blur but the part in the schmatic was great and i have fixed the machine thanks
AV-28R370KE AV-28T67SKE AV-28T35SPE 3.6.6 DEFLECTION CIRCUIT ADJUSTMENT (1) The deflection adjustment using the remote control unit is made on the basis of the initial setting values. The setting values which adjust the screen to the optimum condition can be different from the initial setting values. (2) There are 12 kinds of adjustment modes with the combination of vertical frequency and zoom mode. � Vertical frequency : 50Hz, 60Hz. � Screen zoom mode : PANORAMIC, REGULAR, 14:9 ZOOM, 16:9 ZOOM, 16:9 SUB TITLE, FULL a) At first, the adjustment in 50Hz-PANORAMIC mode should be done. Then the adjustment for the other zoom mode is corrected in the respective value at the same time. b) However, if the picture quality has not been optimized, adjust each zoom mode again, respectively. c) Then confirm the initial setting value of 60Hz-PANORAMIC mode. If adjustment in 50Hz each zoom mode has been done in very high accuracy, the adjustment for the same zoom mode in 60Hz is corrected in the respective value. Adjustment is completed at this time. d) If the picture quality in 60Hz has not been optimized, adjust each zoom mode again in 60Hz, respectively. In this case, only 60Hz each zoom mode is corrected. Item V.POSITION Measuring instrument Signal generator Remote control unit Test point Adjustment part [4.DEF] 1. V- SHIFT Description � First of all, perform the adjustment in the 50Hz PANORAMIC mode. � Set the ZOOM to PANORAMIC. (1) (2) (3) (4)
A
Receive the circle pattern signal. Select 4.DEF. Select <1.V-SHIFT>. Adjust <1.V-SHIFT> to become A = B as shown in figure. (5) Press the [OK] key and memorize the set value. NOTE : adjust by <11. V-LIN> after mentioned. And store the get value.
B
V.SIZE
Signal generator Remote control unit
[4.DEF] 2. V-SIZE 3. SUBTITLE
(1) (2) (3) (4) (5) (6) (7)
Screen size
Picture size 100%
(8)
Receive the crosshatch signal. Select 4.DEF. Select <2.V-SIZE> and set the initial setting value. Adjust <2.V-SIZE> and adjust the vertical screen size is in the table given below. Press the [OK] key and memorize the set value. Select <3.SUBTITLE> and adjust the vertical picture size of screen bottom. Input the NTSC VIDEO signal (60Hz) from the EXT terminal, and adjust that vertical screen size is in the range of the table given below. Press the [OK] key and memorize the set value.
ASPECT MODE SCREEN TOP SCREEN BOTTOM
PANORAMIC
14 : 9 ZOOM
16 : 9 ZOOM
SUB TITLE
FULL
REGULAR
87% 87%
80% 80%
73% 73%
70% 83%
92% 92%
92% 92%
1-30 (No.52116)
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