Printed Wiring Board - Control Board; Schematic Diagram - Control Board - Sony XR-1780 E Model Service Manual

XR-1780
5-5. PRINTED WIRING BOARD – CONTROL Board –
5-6. SCHEMATIC DIAGRAM – CONTROL Board –
– 23 –
(Page 17)
• Semiconductor
Location
Ref. No. Location
D4
D900
D901
D902
D903
IC900
• Waveform
(Page 22)
2 IC900 #™ (OSC)
15 µ s
– 24 –
B-9
C-10
C-7
C-6
C-8
B-9
2.2 Vp-p