Philips FTP1.1E Service Manual page 42

EN 102 9.
CVBS outputs, being: CVBS PIP/DS, CVBS_TXT_OUT for
comb filter (always following YUV main!) and TXT
processing, and the CVBS/Y_RECORD_OUT for EXT2.
IF functionality
•
The HIP contains a multi standard IF circuit for video
demodulation with AFC 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 PDP
screen. Its principal functions are:
•
Video control functions of the HOP (Saturation, Contrast,
Brightness).
•
OSD and TXT insertion with blending.
•
Video Matrix (NTSC, ATSC, PAL).
•
For matrix displays additional functions like:
9.5.2
Video Source Selection
Table 9-4 Video input overview
EXT1 SCART Main
Sub
EXT2 SCART Main
Sub
EXT3 SCART Main
Sub
AV5 cinch Main
Sub
AV6 VGA Main
Sub
The High Definition Input (HDI) part has two input "ports". Each
port consists of a video input and an audio input. The ports are
named "VGA" (= AV6) and "AV5" and will be referred to using
these names.
The physical connectors for these inputs are:
•
AV5. Three cinches that can be used for YPbPr with sync
on Y and two cinches for analogue Audio (left and right).
•
VGA. One VGA connector and two cinches for analogue
Audio (left and right).
Table 9-5 AV5 (YPbPr) input signals
AV5 Inputs System
(YPbPr)
576 p PAL
480 p NTSC
1080 i ATSC
1080 i ATSC
720 p ATSC
720 p ATSC
FTP1.1E Circuit Descriptions, Abbreviation List, and IC Data Sheets
Yes Yes, frontend
Yes n.a.
Yes Yes, WYSIWYR
Yes n.a.
Yes No
Yes n.a.
No No
No n.a.
No No
No n.a.
Field freq. Line freq.
(V) (H)
50 Hz 31.25 kHz
60 Hz 31.5 kHz
60 Hz 33.7 kHz
50 Hz 28.125 kHz
50 Hz 37.5 kHz
60 Hz 45 kHz
–
–
–
–
•
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.
•
Handle shifts of VD.
•
Suppress H and V pulses in active video.
•
Generate a H_REF for PICNIC (1fH) in case of a 2fH/3fH
source.
Basic functionality of the OTC
The OTC combines the microprocessor and TXT/OSD
functionality; it will also handle some of the status detections. It
also takes care of P50 communication.
No No Yes No No No
No n.a. No No No No
Yes Yes Yes No No No
Yes n.a. Yes No No No
No No No No No No
No n.a. No No No No
No No No Yes Yes No Only video det. No
No n.a. No Yes No No Only video det. No
No No No No No Yes Only video det. No
No n.a. No No No No
Contrast reserve (peak limiter),
Sync wheel,
Dithering (matrix displays are 8 bit),
Generation of correct timing for PDP display.
Yes No
Yes No
Yes Yes
Yes Yes
Yes No
Yes No
n.a. No