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Pioneer DV-PT100-S Service Manual
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DV-PT100-S801 2 3 41 2 3 4CDFABE1-4: CONFIRMATION OF VSR TORQUE1. Install the Torque Gauge (GGF1508) and Adapter(GGF1506) on the S Reel. Set to the Picture Search(Rewind) mode. (Refer to Fig.1-4-B)2. Then, confirm that it indicates 120~180gf•cm.NOTEInstall the Torque Gauge on the reel disk firmly. Press theREW button to turn the reel disk.1-5: CONFIRMATION OF REEL BRAKE TORQUE(S Reel Brake) (Refer to Fig. 1-4-B)1. Once set to the Fast Forward mode then set to the Stopmode. While, unplug the AC cord when the Pinch RollerBlock is on the position of Fig. 1-4-A.2. Move the Idler Assy from the S Reel.3. Install the Torque Gauge (GGF1508) and Adapter(GGF1506) on the S Reel. Turn the Torque Gauge(GGF1508) clockwise.4. Then, confirm that it indicates 60~100gf•cm.(T Reel Brake) (Refer to Fig. 1-4-B)1. Once set to the Fast Forward mode then set to the Stopmode. While, unplug the AC cord when the Pinch RollerBlock is on the position of Fig. 1-4-A.2. Move the Idler Assy from the T Reel.3. Install the Torque Gauge (GGF1507) and Adapter(GGF1506) on the T reel. Turn the Torque Gauge(GGF1507) counterclockwise.4. Then, confirm that it indicates 30~50gf•cm.NOTEIf the torque is out of the range, replace the following parts.2. CONFIRMATION AND ADJUSTMENTOF TAPE RUNNING MECHANISMTape Running Mechanism is adjusted precisely at thefactory. Adjustment is not necessary as usual. When youreplace the parts of the tape running mechanism becauseof long term usage or failure, the confirmation andadjustment are necessary.2-1: GUIDE ROLLER1. Playback the VHS Alignment Tape (GGV1183).(Refer to SERVICING FIXTURE AND TOOLS)2. Connect CH-1 of the oscilloscope to TP101 (Envelope)and CH-2 to TP3002 (SW Pulse).3. Press and hold the ATR button on the remote controlmore than 2 seconds to set tracking to center.4. Trigger with SW Pulse and observe the envelope.(Refer to Fig. 2-1-A)5. When observing the envelope, adjust the AdjustingDriver (GGF1509) slightly until the envelope will be flat.Even if you press the Tracking Button, adjust so thatflatness is not moved so much.6. Adjust so that the A : B ratio is better than 3 : 2 as shownin Fig. 2-1-B, even if you press the Tracking Button tomove the envelope (The envelope waveform will begin todecrease when you press the Tracking Button).7. Adjust the PG shifter during playback.(Refer to the ELECTRICAL ADJUSTMENTS)NOTEAfter adjustment, confirm and adjust A/C head.(Refer to item 2-2)The position at FF mode.Stop at this position.The position atSTOP mode.CaptionDD UnitCassetteOpenerPinch Roller BlockCassette Holder AssyS ReelT ReelTorque Gauge/Adpter(GGB1508/GGB1506)Torque Gauge/Adpter(GGB1508/GGB1506)CH-1Envelope(TP101)CH-2SW Pulse (TP3002)Max MaxA : B 3 : 2Entrance ExitCH-1TrackCH-2TrackFig. 1-4-AFig. 2-1-AFig. 2-1-BFig. 1-4-BCheck Item Replacement Part1-4 Idler Assy / Clutch Assy1-5S Reel side : S Reel/ Tension Band/TensionConnect/Tension Arm AssyT Reel side : T Reel/ Brake Band/T Brake Spring/T Brake ArmA B |
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