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Dear Sirs,
Thank you for the fast support, the manual does provide all necessary information to repair the radio. All schematics are in a good quality for reading.
The manual fits 100% to my requirements as a technican.
Kind regards Thomas
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the big video recorder format s-vhs many features delicate in loading system of the cassette. Such machines are no longer manufactured, it would be too expensive.
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THIS MANUAL IS VERY GOOD AND VERY CLEAR
PLEASE NOTE IT DOES NOT CONTAIN THE SETUP INFORMATION TO ALIGHN THE GEARS IN THE CD MECH IT DOES SHOW ALL THE PARTS AND THEIR LOCATIONS .
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Complete service and operation manual. All schematics are there, all circuit boards AND add-on boards. Including exploded views ,component names and specifications. Also electrical and mechanical adjustment procedures are in this manual. This manual also covers the more advanced BR-S811E unit. Scan quality is fair and usable.
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High quality scan of original Service Manual. Everything´s fine!
D. Geometry Distortion (All Preset Mode) :
1) The Contrast and Brightness control shall be properly adjusted at 20 F-L with full intensity reverse pattern, then change to crosshatch pattern. 2) Pincushion distortion shall be less than H : 1.5% and V : 1.5%. 3) Barrel distortion shall be less than H : 1.5% and V : 1.5%. 4) Trapezoid and parallelogram distortion shall be less than H : 1.5% and V : 1.5%. 5) Distortion of four corners shall be less than 3mm x 3mm. 6) Parallelogram distortion shall be less than 2.0% 7) Tilt distortion shall be less than 1/2 degree when facing east and less than 1 degree when turning around 360 degree. 8) Tilt distortion shall be less than 2 mm when facing east and less than 1 degree when turning around 360 degree The measurement of tilt is defined to measure the vertical axis with respect to the bezel, the absolute value of the difference between the extreme left and right measurement of the center horizontal line.
E. Alignment Procedure
E-1. Brightness Adjust: Adjust the VR980, have the +15VS By 14.9V±0.1V (The voltage of the C944) in TIMING 1. Check below items. The voltage of C949 : 179 ± 3V C947 : 75 ± 2V C946 : 44 ± 1.5V C940 : 8.4 ± 0.4V P990 : 12 ± 0.3V Short-Circuit protection function check. The power source is 230VAC input. When short the C944, all output voltage should be shut down and unlatch. When recover normal condition, all output voltage should recover automatically.
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