Service Manual
Page 19
... noise or vertical jitter in the center position: Press either [TRACKING ] or [TRACKING ] button on the front panel first, then the [ O ] (VCR) button on the front panel. Test Equipment Required 1.Oscilloscope: Dual-trace with 10:1 probe, V-Range: 0.001~50V/Div., F-Range: DC~AC-20MHz 2....Test point Adj.Point Mode Input TP751(V-OUT) VR1501 TP302(RF-SW) (Switching Point) GND (BOARD MAIN) PLAY (SP) ----- Tape Measurement Equipment Spec. Figure 1 EXT. Also, do these alignment / confirmation procedures, make sure that the V-sync front edge of the CH1 video output waveform is...
... noise or vertical jitter in the center position: Press either [TRACKING ] or [TRACKING ] button on the front panel first, then the [ O ] (VCR) button on the front panel. Test Equipment Required 1.Oscilloscope: Dual-trace with 10:1 probe, V-Range: 0.001~50V/Div., F-Range: DC~AC-20MHz 2....Test point Adj.Point Mode Input TP751(V-OUT) VR1501 TP302(RF-SW) (Switching Point) GND (BOARD MAIN) PLAY (SP) ----- Tape Measurement Equipment Spec. Figure 1 EXT. Also, do these alignment / confirmation procedures, make sure that the V-sync front edge of the CH1 video output waveform is...