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Very helpful and complete manual. Maybe only one negative is schematics have sometimes unreadable name of the parts. But it's not a big problem.
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Excellent high quality schematics brought my old Heidelberg back to life. Fast download at a reasonable price. Thanks.
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This document is just what I was looking for, it´s very useful, it contains adjustment procedures for the final stage of the power amp and also
has a complete wiring diagram and description of the main semiconductors used in the design.
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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.
No Tray open / close operation
Is the connector properly inserted into CN800 ? Y When pressing the EJECT SW, does the peak value of the IC400 5Pin become 3.3V? Y When it is in the Tray Open mode, does the IC400 6Pin show 1.65V?
N
Try the operation after inserting the connector to CN800 properly.
N
Check the SW701 patterns and the welding condition.Replace it if the condition is normal.
N
Check the SW701 Open and Close patterns and the welding condition. Replace it if the condition is normal. Y
CLOSE
Y
OPEN
When pressing the EJECT SW, does the IC500 Pin26 vary from 0V to the value between1.15V and 2.15V and then show 1.65V finally?
N
Check the condition and patterns of R615, R616. If they are normal, replace IC500.
N
When pressing the EJECT SW, does the IC500 26Pin vary from 1.65V to the value between 1.15V and 2.15V and then show 0V finally?
N
Y
Is the Tray Motor able to output the Pin49 and 50 of IC500? Y
Y
Replace TRAY MOTER.
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