On the plus side these VCR's were construted in a modular fashion
with each printed circuit board carrying out a distinct function.
On the down side, these many PCB are connected together using plugs,
sockets and wire links which are prone to failure.
The electronics inside the VCR's is by todays standard fairly
straight forward with many discrete componenets being used together
to perform the complex functions required. This means getting hold of
components to repair electrical problems is by and large still possible.
However this good news is more than wiped out by the fact that it
is now near impossible to get hold of mechanical parts such as pressure
rollers, capstan motors and video heads. For the most part
it is a case of having to break up several machines to get
Dry Joints Like most V2000 models this VCR suffered
from problems associated with dry solder joints. Before
carrying out anything else it is advisable to check the PCB's for
dry joints. In particular the power supply section and it's linear
regulators should be checked.
Also prone to failire were the
drive circuits for the video head actuators. These supplied high
voltages to activate the piezo-electric actuators and as such were under
stress most of the time. A good maintainance procedure is to replace
all the capacitors in this part of the VCR and to resolder all joints.
Video Heads If the VCR suffers from mistracking first check
the voltage drive to the piezo-electric crystals used in the Dynamic
Tracking circuits. Video heads for V2000 machines are now rare and
extremely difficult to obtain.