DECK MECHANISM ADJUSTMENT
Cassette without Tape.
2. Preparation for Adjustment (To set the
Cover the Holes of the End Sensors at the both sides of the
Deck Mechanism to the Loading state
Bracket Side(L) and Bracket Assembly Door to prevent a
without inserting a Cassette Tape).light leak.
1) Unplug the Power Cord from the AC Outlet.Then The Deck Mechanism drives to the Stop Mode.
2) Disassemble the Top Cover and Plate Assembly Top.In this case, The Deck Mechanism can accept inputs of
3) Plug the Power Cord into the AC Outlet.each mode, however the Rewind and Review Operation
4) Turn the Power S/W on and push the Lever Stopper (L),(R)can not be performed for more than a few seconds
of the Holder Assembly CST to the back for Loading thebecause the Take-up Reel Table is in the Stop State and
can not be detected the Reel Pulses.
3. Checking Torque
Purpose: To insure smooth Transport of the Tape during each Mode of Operation.
If the Tape Transport is abnormal, then check the Torque as indicated by the chart below.
Test Conditions (Mechanism
Test Equipment/ FixtureChecking Method
Condition)
Y Torque Gauge(600g/cm ATG)Y Play (FF) or Review (REW) ModeY Perform each Deck Mechanism Mode without
Y Torque Gauge Adaptorinserting a Cassette Tape(Refer to above No.2
Y Cassette Torque MeterPreparation for Adjustment).
SRK-VHT-303Y Read the Measurement of the Take-up or Supply
Reels on the Cassette Torque Meter(Fig. C-3-2).
Y Attach the Torque Gauge Adaptor to the Torque
Gauge and then read the Value of it(Fig. C-3-1).
ItemModeTest EquipmentMeasurement ReelMeasurement Values
Fast Forward TorqueFast ForwardCassette Torque GaugeTake-Up ReelMore than 400g/cm
Rewind TorqueRewindCassette Torque GaugeSupply ReelMore than 400g/cm
Play Take-Up TorquePlayCassette Torque MeterTake-Up Reel75~115g/cm
Review TorqueReviewCassette Torque MeterSupply Reel130~200g/m
NOTE:NOTE:
The Values are measured by using a Torque Gauge andThe Torque reading to measure occurs when the Tape
Torque Gauge Adaptor with the Torque Gauge affixed.abruptly changes direction from Fast Forward of Rewind
Mode, when quick bracking is applied to both Reels.
Y Torque Gauge (600g.cm ATG)
Y Cassette Torque Meter (SRK-VHT-303)
Torque Gauge
300
T-S250
VH200
SR150SRKK-
VIDE
CASS OETRK-VHT-TTorque Gauge
0 50TORTQEUES050
METER100
VHT-303150Adaptor
200
250
300
Reel Table
Fig. C-3-2
Fig. C-3-1
18 |
ACEC
