Panasonic OmniVision PV-QV200, Service Manual, Page: 47 / 136

1. Place the unit in Service Position (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
6.2.2.2. 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)
6.2.2.2.1. 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 distorted by any slight variation of the tracking
control circuit.
Equipment Required: