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Determine the Video Head Switching Point during Playback.
Symptom of Misadjustment:
May cause Head Switching Noise and/or Vertical Jitter.
Test Point :
TP3001 (TV/VCR Main C.B.A.),
TP6205 (TV/VCR Main C.B.A.)
Adjustment :
PG SHIFTER (EVR)
Specification :
T = 6 H±1 H (0.38 ms±0.06 ms)
INPUT :
----------
Mode :
SP Playback
Equipment :
Oscilloscope,
VHS Alignment Tape (VFMS0003H6)
1. Enter EVR PG Shifter Adjustment mode, refer to "HOW TO ENTER
EVR PG SHIFTER ADJUSTMENT MODE."
2. Connect the channel-1 scope probe to TP3001 and the channel-2
scope probe to TP6205. Used TP6205 as a trigger.
3. Adjust value so that the trailing edge of the head switching pulse
is placed 6 H±1 H (0.38 ms±0.06 ms) before the start of the vertical
sync pulse.
4. Release EVR PG Shifter Adjustment Mode.
The adjusted value will be written to Memory IC (IC6004).
Fig.E3
62
Summary of Contents for OmniVision PV-C1321-K
Page 1: ...ORDER NO MKE0102104C1 B3 Combination VCR PV C1321 K PV C1351W K PV C2031 K SPECIFICATIONS 1 ...
Page 9: ...Fig 1 4 Fig 1 5 9 ...
Page 26: ...Fig D4 Fig D5 26 ...
Page 30: ...6 2 2 Inner Parts Location Fig J1 1 30 ...
Page 31: ...6 2 3 EJECT Position Confirmation Fig J1 2 31 ...
Page 32: ...6 2 4 Grounding Plate Unit Full Erase Head and Cylinder Unit Fig J2 1 32 ...
Page 79: ...79 ...
Page 82: ...11 2 MECHANISM BOTTOM SECTION 82 ...
Page 83: ...11 3 CASSETTE UP COMPARTMENT SECTION 83 ...
Page 84: ...11 4 CHASSIS FRAME SECTION 1 Model PV C1321 K PV C1351W K 84 ...
Page 85: ... Model PV C2031 K 85 ...
Page 86: ...11 5 CHASSIS FRAME SECTION 2 86 ...
Page 87: ...11 6 PACKING PARTS AND ACCESSORIES SECTION Model PV C1321 K PV C1351W K 87 ...
Page 88: ... Model PV C2031 K 88 ...
Page 105: ...R4594 ERDS2TJ681 CARBON 1 4W 680 105 ...
Page 107: ...R6018 ERJ6GEYJ102V MGF CHIP 1 10W 1K 107 ...
Page 128: ...R5501 ERJ6GEYJ471V MGF CHIP 1 10W 470 128 ...