
metal particles).
Confirmation of Signal Level
1. Place the unit in Service Position (2-1), (2-2). Refer to "
SERVICE
POSITION
" in SERVICE NOTES.
2. Supply a Video Signal to the video input jack.
3. Insert a cassette tape and place the unit in SLP recording mode.
4. Connect the oscilloscope to Pin 9 of P6201 on the Main C.B.A. Confirm
that the signal level is greater than 20 mV [P-P].
Fig. M3-2
7.2.2.3. TAPE INTERCHANGEABILITY ADJUSTMENT
Note:
To perform these adjustment/confirmation procedures, enter the
Tracking center mode.
Equipment Required:
Dual Trace Oscilloscope
VHS Alignment Tape (VFMS0003H6)
Post Adjustment Driver (VFK0329)
H-Position Adjustment Driver (VFK0330)
7.2.2.3.1. ENVELOPE OUTPUT ADJUSTMENT
The height of the P2 and P3 Posts replacement part is preadjust at the factory.
Purpose:
To achieve a satisfactory picture and secure precise tracking.
Symptom of Misadjustment:
If the envelope is output poorly, much noise will appear in the picture.
Then the tracking will lose precision and the playback picture will be
57
Содержание Quasar Omnivision PV-V4021-K
Страница 9: ...2 Fault indication will be displayed in F I P as shown Fig 2 2 FIg 2 3 9 ...
Страница 13: ...5 1 4 1 3 Service Position 2 2 Model M N Fig 4 2 2 13 ...
Страница 27: ...Fig D2 6 1 2 1 Notes in chart 27 ...
Страница 30: ...Fig D5 2 30 ...
Страница 32: ...32 ...
Страница 33: ...6 2 2 Inner Parts Location Fig J1 1 33 ...
Страница 34: ...34 ...
Страница 36: ...Fig J2 1 2 36 ...
Страница 67: ...11 2 MECHANISM BOTTOM SECTION 67 ...
Страница 68: ...11 3 CASSETTE UP COMPARTMENT SECTION 68 ...
Страница 69: ...11 4 CHASSIS FRAME AND CASING PARTS SECTION Model PVQ V201 PV V4021 PV V4021 K VHQ 401 PV V4511 PV V4521A 69 ...
Страница 70: ... Model PV V4511 PV V4521 PV V4521 K VHQ 451 70 ...
Страница 71: ... Model PV V4611 71 ...
Страница 73: ... Model PV V4611 73 ...
Страница 78: ...12 2 MECHANICAL REPLACEMENT PARTS LIST MECHANICAL REPLACEMENT PARTS 78 ...
Страница 81: ... 81 ...
Страница 88: ... 88 ...
Страница 90: ...90 ...
Страница 95: ...95 ...
Страница 105: ...105 ...
Страница 109: ...109 ...
Страница 145: ...1 2 Schematic Diagram Circuit Board Layout 2 ...