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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.
 ;
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 .
VC-SK880 Note: Whenever replacing the reel disk, perform the height checking and adjustment.
Master plane Reel disk height adjusting jig
Notes: 1. Hold the torque gauge by hand so that it is not moved. 2. Do not keep the reel disk in lock state. Do not allow longtime measurement.
10 ± 0.2mm
Reel disk
A
Mechanism chassis
CHECKING AND ADJUSTMENT OF TAKE-UP TORQUE IN REWIND MODE
� Remove the cassette housing control assembly. � After short-circuiting TP801 provided at the center (facing to the main PWB), plug in the power cord. � Setting 1. Set a torque gauge to zero on the scale. Place it on the supply reel disk. 2. Press the rewind button. 3. To calculate the remaining capacity, slowly rotate the take-up reel disk, and then shift it into the rewind mode. � Checking 1. Turn the torque gauge slowly (one rotation every 2 to 3 seconds) by hand in the CCW direction. 2. Make sure that the indication of torque gauge is not less than 30mN·m (306gf·cm).
Torque gauge
B
Reel disk
Figure 4-7.
CHECKING AND ADJUSTMENT OF TAKE-UP TORQUE IN FAST FORWARD MODE
� Remove the cassette housing control assembly. � After short-circuiting TP801 provided at the center (facing to the main PWB), plug in the power cord. � Setting 1. Set a torque gauge to zero on the scale. Place it on the take-up reel disk. 2. Press the FF button. 3. To calculate the remaining capacity of the play back mode, slowly rotate the supply reel disk, and then shift it into the forward mode. � Checking 1. Turn the torque gauge slowly (one rotation every 2 to 3 seconds) by hand in the CW direction. 2. Make sure that the indication of torque gauge is not less than 30mN·m (306gf·cm).
Torque gauge
30mN·m (306gf·cm) or more CCW
The gauge is held at its maximum value. (Red mark)
Supply reel disk 30mN·m (306gf·cm) or more CW
The gauge is held at its maximum value. (Red mark)
Idler ass'y
Figure 4-9. � Adjustment 1. If the rewind winding-up torque is less than the specified value, clean the capstan D.D. motor pulley, drive belt, and limiter pulley with cleaning liquid, rewind again, and check the winding-up torque. 2. If the winding-up torque is still out of range, replace the drive belt.
Idler ass'y
Figure 4-8. � Adjustment 1. If the FF winding-up torque is less than the specified value, clean the capstan D.D. motor pulley, reel belt, and limiter pulley with cleaning liquid, and check again. 2. If the torque is less than the set value, replace the reel belt.
13
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