Panasonic AG-MD830E Service Manual

4-3-10. E-E OUTPUT LEVEL ADJ.BOARD VIDEO 2 C.B.A.TP VIDEO OUTADJ VR3305TAPEINPUT COLOUR BAR SIGNALMODE E-EM.EQ WAVE FORM MONITORSPEC Y : LEVEL = 1.0 ± 0.02Vp-pC : LEVEL = 0.65 ± 0.15VP-P[SET UP]INPUT SW : LINE1. Supply the colour bar signal to video input.2. Connect the waveform monitor to video output witha 750 termination.3. Adjust VR3305 so that the Y level becomes 1.0 ±0.02Vp-p as shown in Figure E6.4. Confirm the cyan level are 0:65 ± 0.15Vp-p.VIDEO OUT (75Q) CYAN LEVEL=O.65Vp-p±O.15V(H. RATE) -------1VIDEO LEVEL=___ 11.0VP-P±o.02VP-PFigure E64-3-11. S-VHS RECORDING CURRENTADJ.BOARD VIDEO 1 C.B.A. I HEAD AMP C.B.A.TP TP5003(H)(B-4), TP5002(L)(B-4)ADJ VR5001 (REC-Y)(B-4), VR5002(REC-C)(B-4)TAPE S-VHS BLANK TAPEINPUT COLOUR BAR SIGNALMODE RECM.EQ OSCILLOSCOPESPEC 35mVp-p±2mVp-p(C), 150mVp-p±1 OmVp-p(Y)[SET UP]S-VHS SWINPUTONLINE1. Supply the colour bar signal to video input.2. Connect the oscilloscope to TP5003 (HOT) andTP5002 (GND).3. Place the unit in recording mode with colour barsignal.4. Before chrominance recording current adjustment,luminance recording current (VR5001) should beclosed to observe the chrominance signal.5. Adjust VR5002 for 35mVp-p ± 2mVp-p as a cyanlevel of the chrominance signal as shown in FigureE7.6. Next, adjust VR5001 for 150mVp-p ± 10mVp-p asluminance signal us shown in Figure E8.T P5003, T P5002(H. RATE)Figure E7CHROMALEVEL3 5 mVp-p±2mVp-pTP5003, TP5002(V. RATE)150m±~b-+~P_P111111111111111111111111111111111111111111111111111111111111111+V-SYNCFigure E84-5~zw~~en:::>-,o«-'«()a:~()w-'w