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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.
7521Plus / N N/B MAINTENANCE
4. Insert a minus screwdriver 101 (JIS standard) into the �OPEN� hole of the socket, and push the screwdriver toward the CPU to free the CPU. Now you can take out the CPU from the socket. (figure 2-4)
Figure 2-4
Reassembly
1. Align the arrowhead corner of the CPU with the beveled corner of the socket, and insert the CPU pins into the holes. Insert the flat screwdriver into the �CLOSE� hole of the socket, and push the screwdriver toward the CPU to secure the CPU in place. 2. Connect the fan�s power cord to the system board, fit the heatsink onto the top of the CPU and secure with four screws. 3. Replace the CPU compartment cover and secure with two screws.
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