Philips 32PFL5405H/05 Service Manual page 55

7.8 Back-End
The following backlight types can be distinguished:
• CCFL/EEFL backlight; applicable to the xxPFL54xx sets
• LED backlight:
- side-view (edge) LED without scanning: PSL power
board; applicable to xxPFL76xx sets
- side-view (edge) LED with scanning: PSLS power board;
not applicable to this chassis
- direct-view LED with 0D-dimming: PSL power board;
applicable to xxPFL56xx sets
- direct-view LED with 2D-dimming: PSDL power board;
not applicable to this chassis.
Refer to section 7.2.2 Diversity
the different power boards that are used.
7.9 Ambilight
In this chassis, only 2-sided Ambilight is implemented. Refer to
figure 7-16 Ambilight architecture.
MTK
or
PNX85500
SSB
PSU
For an overview of the LED grouping per board, refer to figure
7-17 LED grouping per
for an in-depth explanation of
1
M
Glue
5
logic
9
1M09
1M09
Figure 7-16 Ambilight architecture
board.
Circuit Descriptions
Figure 7-15 Backlight (xxPFL54xx, xxPFL56xx, xxPFL76xx sets)
1
M
AmbiLight
8
3
back to
div. table
Q552.1E LA 7.
18770_242_100203.eps
application
1 1
M M
AmbiLight
8 8
4 3
18770_209a_100202.eps
EN 55
100203
1
M
8
4
100202
2010-Feb-19