Philips FTL13U Service Manual page 144

EN 144 9. FTL13U AA & AB
9. If the standard is not supported, the set changes to blue
mute via the EBILD, and a message is displayed.
10. If the standard is the same as the last status, the ADC is in
the correct state, and both FBX and EBILD are set (see
lookup table).
Table 9-3 I/O lookup table
Selected Input Standard
Tuner, AV1...3, 480i
Side I/O, AV4
576i
480p
576p
1080i / 60 Hz
AV4 (YPbPr)
1080i / 50 Hz
720p / 60 Hz
720p / 50 Hz
480p
576p
1080i / 60 Hz
1080i / 50 Hz
AV5 (DVI)
720p / 60 Hz
720p / 50 Hz
VGA
SVGA
XVGA
9.5 Video Processing
9.5.1 Introduction
Note: The FBX processing part is equal as described in the R8
manual. Therefore, it is not described here (except for some
basics).
The I/O peripherals are as follows: (see also figure "Block
diagram FTL13U" in paragraph "Block Diagram"):
• Four AV inputs 1fH (AV4 can be 1fH or 2fH/3fH YPbPr), a
side IO, and a DVI 2fH/3fH input.
The video processing is based on four key functions:
• The HIP + comb filter (for simple source select and video/
chroma processing).
• The EBILD takes over the video control functions of the
HOP (which is used in CRT based sets).
• The FBX configuration consisting of a PICNIC (2fH
featuring), a FALCONIC (Auto TV featuring), and an
EAGLE (motion compensation and "Pixel Plus"
processing).
• A 2fH/3fH source selection.
Additionally, the following features are added
• One-chip 3D Comb filter: this comb filter uses spatial and
temporal filtering for the elimination of cross color and
cross luminance components. Not only for vertical lines,
but also for stationary diagonal lines.
• The OTC does the light sensor measurement required for
"Active Control".
Basic functionality of HIP
I/O functionality
• The HIP selects the signals entering on 1fH base band.
The HIP contains a source select matrix in order to handle
a Tuner, three CVBS sources, two Y/C sources, and two
RGB inputs (this in fact means one VIF input for tuner, four
CVBS inputs with among them two Y/C inputs, and two
RGB inputs). The HIP detects by itself whether the source
Circuit Descriptions, Abbreviation List, and IC Data Sheets
x fH FBX
1 fH PICNIC
1 fH PICNIC
2 fH EAGLE
2 fH EAGLE
2 fH EAGLE
2 fH EAGLE
3 fH / 720p n.a.
3 fH / 720p n.a.
2 fH EAGLE
2 fH EAGLE
2 fH EAGLE
2 fH EAGLE
3 fH / 720p n.a.
3 fH / 720p n.a.
2 fH EAGLE
2 fH EAGLE
3 fH / 768p n.a.
11. If the standard is changed, the ADC is set to the detected
standard and a new check is done. If the standard is valid
and supported, the new standard is stored in NVM as last
status.
12. The FBX and EBILD are set (see lookup table).
13. Picture is unblanked and sound demuted.
ADC EPLD
YPbPr YPbPr
YPbPr YPbPr
YPbPr YPbPr
YPbPr YPbPr
YPbPr YPbPr
YPbPr YPbPr
RGB RGB
RGB RGB
RGB RGB
RGB RGB
RGB RGB
RGB RGB
RGB RGB
RGB RGB
RGB RGB
is Y/C or CVBS, and decides how to handle the signal for
further image processing.
• The HIP delivers the main video output (YUV- 1fH signal)
for further image processing and three CVBS outputs,
being: CVBS PIP/DS, CVBS_TXT_OUT for comb filter
(always following YUV main!) and CC processing, and the
CVBS/Y_RECORD_OUT for AV2.
IF functionality
• The HIP contains a multi standard IF circuit for video
demodulation with AFC (Automatic Frequency Control)
functionality, a sound IF amplifier, and an AM demodulator.
An extra group delay correction is included.
• Chroma demodulation and video processing
• Sync acquisition, delivering H_A/V_A (Horizontal/Vertical
Acquisition) towards FBX.
Basic functionality of EBILD
The EBILD is the interface between the FBX and the LCD
screen. Its principal functions are:
• Video control functions of the HOP (Saturation, Contrast,
Brightness).
• OSD insertion with blending.
• Video Matrix (NTSC, ATSC, PAL).
• For matrix displays additional functions like:
– Contrast reserve (peak limiter),
– Sync wheel,
– Dithering (matrix displays are 8 bit),
– Generation of correct timing for LCD display: lamp/
video.
• I2C and SNERT bus.
• Sync control.
• Odd/Even field detection.
• A/D converter alignment for OSD.
• H Sync generation for OTC.
• Control lines.
• Standard detection.
• Lamp on.
• Handle shifts of the vertical deflection.
• Suppress H and V pulses in active video.
• Generate a H_REF for PICNIC (1fH) in case of a 2fH/3fH
source.
Field Rate
60 Hz
50 Hz
60 Hz
50 Hz
60 Hz
50 Hz
60 Hz
50 Hz
60 Hz
56 Hz