Philips 37PFL7603D/10 - “Supply Detection Algorithm for DC-DC Outputs” Flowchart; “Supply Fault Detection Algorithm” Flowchart

Service Modes, Error Codes, and Fault Finding
EN 33Q528.2E LB 5.
Figure 5-11 “Supply detection algorithm for DC-DC outputs” flowchart
Figure 5-12 “Supply fault detection algorithm” flowchart
supply detection algorithms for DC-DC outputs
DETECT 1 = Low ?
Check DETECT1 5 times
( within 500us )
DETECT 1 = Low ?
5 consecutive times ?
Shutdown ( Active to
Semistdby to standby )
Wait for 5 seconds
Polling every 40ms
Yes
Yes
No
No
Restart
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Error 9
Yes
DETECT1 = High ?
Shutdown ( Active to
Semistdby to standby )
Wait for 5 seconds
Restart
SP
No
N0
supply fault detection algorithm
Yes
SUPPLY-FAULT = LOW for
1ms ?
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