Fig. M1
Note:
1. Do not rub vertically or apply excess pressure to the Video Heads.
Do not turn the Upper Cylinder Unit clockwise while cleaning.
2. After cleaning, use a Dry Head Cleaning Stick (VFK27) to remove
any Ethanol remaining on the cylinder tape path. Otherwise, tape
damage will occur.
7.2.2. ADJUSTMENT PROCEDURES
7.2.2.1. BACK TENSION CONFIRMATION
Purpose:
To fine adjust the Back Tension so that the tape runs smoothly
with a constant tension.
Symptom of Misadjustment:
1) If the tape tension is less than the specified value, the tape
cannot come into proper contact with the Video Heads, resulting
in poor picture playback.
2) If the tape tension is too high, the tape will soon be damaged.
Equipment Required:
Back Tension Meter (Made in U.S.A., Purchase Locally)
VHS Cassette Tape (120-Minute Tape)
Specification:
20 gf±2.5 gf
(0.196 N±0.025 N)
1. Play back a T120 cassette tape from the beginning for approx. 10
to 20 seconds to stabilize tape movement.
2. Insert a Tension Meter into tape path and measure the back
tension.
51
Summary of Contents for OmniVision PV-Q1311
Page 9: ...Fig 1 4 Fig 1 5 9...
Page 23: ...5 2 IC TRANSISTOR AND CHIP PART INFORMATION 23...
Page 27: ...Fig D4 Fig D5 27...
Page 31: ...6 2 2 Inner Parts Location Fig J1 1 31...
Page 32: ...6 2 3 EJECT Position Confirmation Fig J1 2 32...
Page 33: ...6 2 4 Grounding Plate Unit Full Erase Head and Cylinder Unit Fig J2 1 33...
Page 84: ...84...
Page 88: ...11 2 MECHANISM BOTTOM SECTION 88...
Page 89: ...11 3 CASSETTE UP COMPARTMENT SECTION 89...
Page 90: ...11 4 CHASSIS FRAME SECTION 1 90...
Page 91: ...11 5 CHASSIS FRAME SECTION 2 91...
Page 93: ...Model PV C2011 PV C2021 PV C2031W VV 2001 PV C2061 93...
Page 111: ...R4591 ERDS2TJ681T CARBON 1 4W 680 111...
Page 113: ...R6009 ERJ6GEYJ102V MGF CHIP 1 10W 1K 113...
Page 135: ...R6032 ERJ6GEYJ102V MGF CHIP 1 10W 1K 135...