Philips BJ2.4U Service Manual page 23

Service Modes, Error Codes, and Fault Finding
42" FHP A1
Semi Standby
Assert RGB video blanking
and audio mute
Initialize audio and video processing IC's and
functions according needed use case.
Wait until QVCP generates a valid lvds output
clock.
Make PDPGO high:
Vs and Va become active
Power-OK detected
within 5s (tbc)?
Yes
PDPON mode [CNDC] = 4
detected within 5s (tbc)?
Yes
Switch on LVDS transmitter
(PNX2015)
Enable anti-aging through
Anti-agingEnable interface of
CHS displays
Switch off RGB blanking after valid, stable video, corresponding to
the requested output is delivered by the Viper
Unblank by sending ADEN = 1
to PDP display
Switch Audio-Reset and sound enable low and demute
(see CHS audio LdspMute interface).
Start polling PDP-IRQ
Active
Figure 5-9 "Semi Stand-by" to "Active" flowchart 42" FHP A1
BJ2.4U/BJ2.5U PA
action holder: MIPS
action holder: St-by
autonomous action
No
MP
No
G_15910_010.eps
230606
5. EN 23