Philips EM6E Service Manual page 132

Circuit Descriptions, Abbreviation List, and IC Data Sheets
H-DVI H_sync from DVI to RGB converter
chip
HFB Horizontal Flyback Pulse: horizontal
sync pulse from large signal deflection
HIP High-end video Input Processor
(TDA9320): video and chroma
decoder.
HOP High-end video Output Processor
(TDA9330): video, sync, and
geometry controller
H_OUT H_sync output of the module
HP HeadPhone
Interlaced Scan mode where two fields are used
to form one frame. Each field contains
half the number of the total amount of
lines. The fields are written in "pairs",
causing line flicker
IROM Internal ROM (inside uP)
Last Status The settings last chosen by the
customer and read and stored in RAM
or in the NVM. They are called at start-
up of the set to configure it according
to the customer's preferences
LCD Liquid Crystal Display
LDP Line Deflection Protection signal,
derived from the EW current and
voltage
LED Light Emitting Diode
LINE-DRIVE LINE DRIVE signal (for the Line
transistor)
LNA Low Noise Adapter / Low Noise
Amplifier
LO Local Oscillator
Ls, Rs Left surround and Right surround
channel (audio)
LSP Large Signal Panel
Lt, Rt Left total and Right total in case of a
Dolby ProLogic encoded signal
(audio)
MPX MultiPleX
MSP Multi-standard Sound Processor: ITT
sound decoder
MUTE MUTE Line
NC Not Connected
NVM Non Volatile Memory: IC containing
TV related data such as alignments
O/C Open Circuit
OSD On Screen Display
OTC On screen display Teletext and
Control; also called Artistic (SAA5800)
OTP One Time Programmable
P50 Project 50: communication protocol
between TV and peripherals
PA Power Amplifier
PCB Printed Circuit Board
PICNIC Peripheral Integrated Combined
Network IC (SAA4978): main IC for
100 Hz features and feature
processing
PIP Picture In Picture
Progressive Scan Scan mode where all scan lines are
displayed in one frame at the same
time, creating double vertical
resolution.
PTP Picture Tube Panel
PWM Pulse Width Modulation
RAM Random Access Memory
R-TXT Red TeleteXT
RC Remote Control
RC5 / RC6 Signal protocol from the remote
control receiver
RDS Radio Data System
RESET RESET signal
ROM Read Only Memory
SAM Service Alignment Mode
EM6E AB
S Surround channel or mono surround
channel (audio)
SC SandCastle: two-level pulse derived
from sync signals
S/C Short Circuit
SCAVEM SCAn VElocity Modulation
SCL-F CLock Signal on Fast I2C bus
SD Standard Definition
SDA-F DAta Signal on Fast I2C bus
SIF Sound Intermediate Frequency
SNERT Synchronous No parity Eight bit
Reception and Transmit
SPDIF Sony Philips Digital Interface
SSP Small Signal Panel
STBY STandBY
SW SubWoofer
TXT TeleteXT
UART Universal Asynchronous Receiver
Transmitter
uP Microprocessor
U_100 U from Feature Box
V_100 V from Feature Box
V_A50 Vertical Acquisition 1fH
V_BAT Main supply for deflection (usually 141
V)
V_D100 Vertical Drive 2fH: vertical sync pulse
from deflection
V_DPOS One of the symmetrical drive signals
for the DC frame output stage.
V_DNEG One of the symmetrical drive signals
for the DC frame output stage.
VFB Vertical Flyback Pulse: vertical sync
pulse coming from the feature box
VL Variable Level out: processed audio
output toward external amplifier
WYSIWYR What You See Is What You Record:
record selection that follows main
picture and sound
X-RAY-PROT A PROTection signal against
excessive X-RAY radiation
XROM External ROM (outside uP)
XTAL Quartz crystal
Y_100 Y from Feature Box
Y-G Luminance or Green signal with sync
Y_OUT Luminance-signal to HOP IC
YUV-Feat The YUV input for the main picture,
coming from the Feature box or the
HIP
V V_sync to the module
9. EN 171