Panasonic AG-7510 Service Manual

({3. Set the triggering slope of scope to2. Playback the alignment tape and set theTRACKING VR on the front panel to maximumenvelope position at TP2 on the SUB VIDEOC.B.A. "—"" side,and expand the V sync portion of the signal.Adjust VR2008 (PG1) so that the falling edge ofswitching pulse becomes 6.5H +/— 0.25H beforethe V sync portion.(Figure E3)‘V. RateTP2002HEAD SWfTP2001 1CTL fee jv Rate——-4+-»|Figure E52-3-3. SS HEAD SWITCH ADJUSTMENTFigure E3» Change the triggering slope of the scope from“—" to "+" side, and adjust VR2007 (PG2) sothat the difference between the rising andfalling edges becomes ess than 10usec.(Figure £4) difference between the rising andfalling edges becomes less than 10 usec.(Figure E5)Rising edgeTP2002HEAD SWFalling edgeT2 ss than 10sec.———_—_-v. Rate+ >|Figure E423-2. TRACKING FIX ADJUSTMENTTP ADJ. MODE INPUTTP30020TP2010 vR2011 Ae(Trigger) (FWD x4TAPE M. EQ. SPEC.VFMB180HMDH | OSCILLO- T=V. SYNC PORTIONPORTION:@ | SCOPE £0.25H*Note:This adjustment should be performed only afteradjusting the PG shifter adjustment.Set the SYNC Select Switch to NORM Reattion:Press the SEARCH key and set the SEARCH DIAL toFWD X2 portion.NeTP3002( nan(ewox2es)—_______1Figure E62-4. SYSTEM CONTROL SECTION2-4-1. HD AUDIO HEAD SWITCH SHIFTERADJUSTMENT*Note:This adjustment should be performed only afteradjusting the PG shifter adjustment.1, Set. the switches to the following position.* SYNC Select Switch-NORM position2. Adjust the Tracking VR on the Front Panel tothe centre fix position.TP ADJ. MODE INPUT 1? ADJ. | MODE | INPUTTP2001Teepe vR2001 PLAY TP6005 vR6004 PLAYTAPE M. EQ. SPEC. TAPI EQ. ;\VFM8180HMDH | OSCILLO- 2 La Lc SPEC: T=0.4msec. 0.1 msec.PORTION:@ | SCOPE VFM8180HMDH| OSCILLO- T= 4399%0.03PORTION:@ | SCOPE ¥ LOSmese:_—TP6005 ~—T—>}=a~———— V. Rate-———4 >|2—24Figure E7