Service manual

30
1-2) PLAYBACK PHASE Adjustment
• Adjustment Procedure
1. Preparation
1) Play back the Test tape (Color Bar).
2) Connect scope's connector to PY 09
3) Set the Oscilloscope to the chop mode.
Connect CH1 to the H/SW(PY09) and CH2 to the V-OUT(PY09) and trigger the scope with the signal from CH1.
2. Adjustment
1) Adjust RN90 to position the rising edge of SW PULSE at 6.5H from the V-SYNC.
Mode Adjustment parts Check point Test equipments Test tape Input signal
Play RN90 RY05 Oscilloscope DN-1
Location of Adjustment Parts Observation Waveform
MAIN PCB Horizontal Axis : 100µS/DIV
Vertical Axis : CH1 : SW30, CH2:V.OUT
DECK A'S
PY09
PY05
Y/C
BOARD
⊕RN90