Vertical Protection - Sony CPD-420GS Training Manual
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Also See for CPD-420GS:
- Operating instructions manual (19 pages) ,
- Specifications (2 pages) ,
- Service bulletin (9 pages)
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89
NOTE: LED illuminates Orange (1.5 seconds) / Off (0.5 seconds)
Vertical Protection
Vertical Protection
The vertical flyback pulse from IC401/3 through R407 is rectified by D405
and filtered by C409. The DC voltage (V.FBP) is routed to the N Board to
Micro IC1001/42. IC1001 monitors the DC voltage to confirm that Verti-
cal Deflection is operating. When the DC voltage reaches 0V, IC1001/7
'REMOTE ON/OFF' goes L (0V) to set the power supply in the 'Active Off'
mode.
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Troubleshooting
