Philips Q552.2L Service Manual page 59

1 1
M M
PNX85500 CPLD SPI SPI
AmbiLight
9 8
5 3
SSB
Figure 7-10 Ambilight configuration
The Ambilight implementation consists of 2 separate units in
the set, where the Ambilight module located on the right (seen
AMBI-SPI-SDI
AMBI-SPI-SDO
AMBI-SPI-CLK
AMBI-SPI-CLK
AMBI-PWM-CLK
AMBI-BLANK
AMBI-PROG
AMBI-LATCH
PWM-R3
PWM-G3
PWM-B3
PWM-R4
PWM-G4
PWM-B4
Figure 7-12 Slave Ambilight module
Circuit Descriptions
1 1
M M
PWM
AmbiLight
8 8
5 6
19111_009_110519.eps
110519
EEPROM
CS-Local
OR
Figure 7-11 Master Ambilight module
+24 V
+24 V
+24 V
+24 V
+24 V
+24 V
19111_011_110519.eps
110519
back to
div. table
Q552.2L LA
from the back of the set) acts as a Master and the module on
the left acts as a Slave.
The NVM is located on the Master Ambilight module. This
module communicates via the SPI communication protocol
with the CPLD located on the SSB whereas the Slave Ambilight
module communicates via the PWM communication protocol
with the Master Ambilight module.
The supply voltage of the modules is +24 V.
Refer to Figure 7-11 and Figure 7-12
implementation.
LED
Driver
7. EN 59
for the Ambilight board
+24 V
PWM-R3
PWM-G3
PWM-B3
PWM-R4
PWM-G4
PWM-B4
19111_010_110519.eps
110519
2012-Mar-16