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This is a good quality scan of the Operation & Maintenance (Service) Manual for the PAL version of this high-band broadcast umatic, BVU-800P
All schematics and lineup procedures appear to be included in this one manual AFAICT.
The file size is just over 113 MB which gives an idea of the quality and number of pages.
All of the schematics, which contain some fairly small print, are easily readable when you zoom into the page.
John Thompson, Newcastle Upon Tyne, England.
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Good quality, all schematics of few of models. There is also short form of user manual and regulation manual.
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Perfect copy of the service manual. you can enlarge every page, and it comes up
with all details.
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It´s very very nice manual with all, what i need. Original in good quality. Very fast business. Very much thanks...
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Purchased the manual that I was looking for at a great price and could download it easily.. Great service experience and for future purchases I plan to use the site.
Thank you very much
voltage, and +5 volts. The EHTINFO line is the DAG line. This line is fed back to the Signal Processor IC, 7250, to adjust the Picture level to compensate for changes in Beam Current. The EHTINFO line is also connected to resistor 3478 and zener diode 6480. If this line should go excessively negative, which would be caused by excessive Beam Current, transistor 7481 will turn On. This will place a High on the P9STBYON_PROT line shutting the set Off. The Filament voltage is monitored for no voltage or excessive voltage. The Filament voltage is rectified by 6463 and fed to the base of transistor 7462. If the voltage on the base of 7462 goes above 6.8 volts, 7462 will turn On, turning 7463 On. This
will place a High on the HEW_PROT line. This will shut the Horizontal drive Off. The EW_DRIVE from the Signal Processor drives transistor 7470 to make linearity corrections in the Horizontal Drive. If Horizontal drive should fail, the source leg of 7470 will go High, placing a High on the P9STBYON_PROT line shutting the set down. MICROPROCESSOR SWITCHING 6) (Figure
In the Standby mode, Pin 19 of the Microprocessor, 7600, is held Low by a switching circuit inside the IC. When Set is turned On, this circuit switches
FIGURE 6 - MICROPROCESSOR
PAGE 10
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