2.3 VHS MECHANISM
2.3.1 Notes2.3.3 Setting the mechanism assembling mode
This model?s mechanism relates closely to the rotary encoderThe mechanism-assembling mode is provided with this mecha-
and system control circuit (the rotary encoder is meshed with thenism. When disassembling and assembling, it is required to en-
control cam).gage this mode.
The system control circuit detects the mechanism condition us-Set the mode by adopting the following procedures.
ing the rotary encoder?s phase (internal switch phase). There-(1) Remove the mechanism assembly using the disassem-
fore, the parts such as the rotary encoder, control plate, loadingbling procedure.
gear and control cam need to be installed correctly in order for(2) Turn gear (a) of the loading motor manually to set the
the mechanism to operate properly. (For the mechanism phasemechanism assembly to the eject end mode. Make sure
adjustment, refer to the installation of each part.)that the main deck is connected to the guide hole (a) of the
drive lever and the seal (a) of the main deck is connected
? Before using a soldering iron, be sure to disconnect the powerto the mark ?E? of the control plate. This condition is called
plug from the AC outlet.the mechanism-assembling mode.
? Do not touch any of the adjustment points until a defect posi-
tion is specified.Seal (a)Guide hole (a)
? When plugging or unplugging the connector, be sure not to
damage the wire.
? Be sure the springs are hooked all the way around and in the
correct direction.
? When performing repairs, take care not to damage a catch,
etc.
"E" mark
CONTROL PLATEDRIVE LEVER
OKNG
not hooked all the
()way around
Fig.2-3-1
2.3.2 Mechanism operation check
When the mechanism is operated without a cassette loaded, op-
erate the mechanism in the mechanism service mode.
LOADING MOTORGear (a)
Unloading
Loading
Fig.2-3-2
2-30 (No.86700) |