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Complete MFG Service Manual at a good price FAST !
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Downloaded the manual, reasonably straightforward, pretty much exactly as advertised.
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very helpfull
circuit diagram and sparepart list available
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Very good reproduction (copy) of original manual. Didn't have a parts list, but schematic was completely labeled with parts. Complete instructions on how to adjust mechanical functions of the 8-track deck. Well worth having and at a very reasonable cost.
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It's a full manual. All the parts are in there. I haven't found the problem yett, but I am working on it; hope I can rebuild the part myself. To make it more secure and unbreakable this time. Because the part has failed several times before and costs a lot to let it be repaired.
Thanks so much for this rich illustrated and parted manual.
70GF-63E
1� HORIZONTAL SHIFT
a) Internal pattern signal will be displayed. b) When volume-up button is pressed, picture moves to the left. c) When volume-down button is pressed, picture moves to the right. d) Adjust the horizontal location to obtain picture centering (fig. 2). Fig. 2
2� E-W WIDTH
a) Internal pattern signal will be displayed. b) When volume-up button is pressed, horizontal scanning increases. c) When volume-down button is pressed, horizontal scanning decreases. d) Adjust the horizontal amplitude to obtain 9% overscan (fig. 3). Fig. 3
3� PIN PHASE
a) Internal pattern signal will be displayed. b) When volume-up button is pressed, slide pincushion changes. c) When volume-down button is pressed, slide pincushion changes. d) Adjust the PIN PHASE to obtain condition as in (fig. 4).
4� PIN AMPLITUDE
Fig. 4
a) Internal pattern signal will be displayed. b) When volume-up button is pressed, slide pincushion changes from pincushion to barrel shape. c) When volume-down button is pressed, slide pincushion changes from pincushion to barrel shape. d) Adjust the PIN AMPLITUDE to obtain condition as in (fig. 5). a) Internal pattern signal will be displayed. b) When volume-up button is pressed, slide pincushion changes from pincushion to barrel shape. c) When volume-down button is pressed, slide pincushion changes from pincushion to barrel shape. d) Adjust the CORNER AMPLITUD to obtain condition as in (fig. 6).
Fig. 5
5� CORNER AMPLITUD
Fig. 6
6� CORNER SYMMETRY
a) Internal pattern signal will be displayed. b) When volume-up button is pressed, slide pincushion changes from pincushion to barrel shape. c) When volume-down button is pressed, slide pincushion changes from pincushion to barrel shape. d) Adjust the CORNER SYMMETRY to obtain condition as in (fig. 7). a) Internal pattern signal will be displayed. b) When volume-up button is pressed, upper picture scanning decreases and lower picture scanning increase. c) When volume-down button is pressed, upper picture scanning increases and lower picture scanning decrease. d) Adjust the vertical symmetry to obtain symmetry scanning between upper and lower picture (fig. 8). a) Internal pattern signal will be displayed. b) When volume-up button is pressed, vertical size of picture increases. c) When volume-down button is pressed, vertical size of picture decreases. d) Adjust the vertical size to obtain overscan (fig. 9).
Fig. 7
7� VERTICAL LINEARITY
Fig. 8
8� VERTICAL AMPLITUDE
Fig. 9
6
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