SHARP VC-FV200
Manual de Servicio

VC-FV200 VC-FV200W 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.

CHECKING AND ADJUSTMENT OF TAKE-UP TORQUE IN VIDEO SEARCH REWIND MODE
� Remove the cassette housing control assembly. � After short-circuiting TP803 provided at the center (facing to the main PWB), plug in the power cord. � Setting Press the playback button and rewind button to set the video search rewinding mode. � Checking Place the torque gauge on the supply reel disk, and turn it counterclockwise very slowly (one rotation every 1 to 2 seconds) and check that the torque is within the set value 14.0 ± 3.9mN�m. (144 ± 40gf�cm)
Torque gauge

CHECKING AND ADJUSTMENT OF TAKE-UP TORQUE IN RECORD/PLAYBACK MODE
� Remove the cassette housing control assembly. � After short-circuiting TP803 provided at the center (facing to the main PWB), plug in the power cord. � Turn off the power switch. � Open the cassette torque meter lid, and fix it with tape. � Load the cassette torque meter into the unit. � Put the weight (500g) on the cassette torque meter. � Turn on the power switch. � Press the REC button, and set SP picture record mode.
Set value SP7.8 ± 3mN�m (80 ± 30 gf�cm)

CCW

500g

Cassette torque meter Supply reel disk

Figure 4-10. � Checking 1. Make sure that value is within the setting 7.8 ± 3 mN·m (80 ± 30 gf·cm). 2. The winding-up torque fluctuates due to variation of rotation torque of limiter pulley ass'y. Read the center value of fluctuation as setting. 3. Set the SP record mode and make sure that the windingup torque is within setting. � Adjustment If the playback winding-up torque is not within the setting, replace the limiter pulley assembly. Note: When the torque cassette is set, put a weight (500g) to prevent rise. When the cassette torque meter is taken out. Turn off the power switch. Figure 4-11.

Note: Surely put the torque gauge on the reel disk to measure. If the torque gauge is raised, accurate measurement is impossible. � Adjustment If the rewinding playback winding-up torque is not within the setting, replace the limiter pulley assembly. Note: The winding-up torque fluctuates due to variation of rotation torque of supply reel disk. Read the center value of fluctuation as setting.

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