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A good manual! fast service and good qualityi for pdf document.
thanks!
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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
4-9. VPP sensor circuit
Protection circuit
To prevent the circuit breakage, the protection circuit watches the voltage level of VCC, VDD and VPP. When the each voltage level is more than following condition, this circuit cuts the voltage. VCC,VDD: In case these voltages are become over voltage, this circuit outputs �SCR� signal(High signal) and burn out the fuse. In case the VPP voltage is more than 15 V or less than 13.9 V, the �VPP.S� level is inverted and CPU cut the �VPP.ON� signal.
VPP:
Detection voltage level (Unit: V) VCC >= +6.5 V VDD >= +6.5 V +13.9 V =< VPP <=15.0 V
4-10. Power supply circuit for display
VC VP GND
This circuit is making the power for display tube. Voltage level: -VN VF1 - VF2 Est. -31.2 V Est. AC4.85 V
� 11 �
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