Circuit-, IC descriptions and list of abbreviations
EN 148
LX7500R
9.
9.9
List of Abbreviations
Analog Board
+5VSTBY
Permanent Supply 5V
8SC2
Pin8 Scart2 (only for Europe)
A_DATA
Data from Analog- to Digital-Board
(UART-Communication)
A_RDY
Analog-board ready (status
information to digital-board)
A18 - A19
Parallel Address Bus (CC - Flash-
ROM and S-RAM)
A8 - A17
Parallel Address Bus (CC - Flash-
ROM and S-RAM)
AD0 - AD7
Parallel Address Bus (CC - Flash-
ROM and S-RAM)
AFC
Automatic Frequency Control
AFEL
Audio Frontend Left
AFER
Audio Frontend Right
AGC / WSRI
Automatic Gain Control (for Europe),
Wide Screen Rear In (for NTSC)
AINFL
Audio In Front Left
AINFR
Audio In Front Right
AKILL
Audio Kill Signal
ALADC
Audio Left to ADC
ALDAC
Audio Left from DAC
ALE
Address Latch Enable
AM0
Adress-mode 0
AM1
Adress-mode 1
ARADC
Audio Right to ADC
ARDAC
Audio Right from DAC
ASCC1
Audio Scart 1 Mute (System Clock
Output for Real time Clock-
Adjustment)
AVCC
Power Supply for A/D-converter
AVSS
GND-Pin for A/D-converter
CFIN
Chroma Front In
CS0_
Chip Select 0 (CC - S-RAM)
CS2_
Chip Select 2 (CC - Flash-ROM)
CVBSFIN
Video Front In
D_DATA
Data from Digital- to Analog-Board
(UART-Communication)
D_RDY
Digital-board ready (status information
from digital-board)
DAC_MUTE
Mute Signal for DAC
DAOUT
Digital Audio Out
DVAL
Audio from Digital Video In Left
DVAR
Audio from Digital Video In Right
DVCC1
Power Supply Pin
DVCC2
Power Supply Pin
DVCC3
Power Supply Pin
DVSS1
GND Pin
DVSS2
GND Pin
DVSS3
GND Pin
FAN_OFF
Fan for Basic engine
FBIN
Fast Blanking input
FOME
FOllow ME Status line (matching
signals yes/no; only for Europe)
G1…10
DISPLAY GRID
INT
Interrupt OUT for the CC
INT
Interrupt – line from Display Print
ION
Inverse ON-Line
IPFAIL
Inverse Power Fail Detection
IPOR
Inverse Power On Reset
IRESET
Inverse Reset Input
K1
Key-Input-Line
K2
Key-Input-Line
KILL
Signal from IR-Receiver
P50 IN
P50 INput-line (only for Europe)
P50 OUT
P50 OUTput-line (only for Europe)
POR_DC
Power On Reset for Display Control
Print (Ext_DL)
PSS
Output Enable ReaD (CC - Flash-
ROM and S-RAM)
PWM_FIL
Control line for Filament Voltage
Generation
PWONSW
Amplifier Switch Audio A/D Converter
RD_
Pal/Secam-Select
RECLED
Control Signal for REC-LED
RESET_DIG
Reset Line to Digital Board
RP_
Inverse Reset line to Flash-ROM
RSA1/2
Record Selector 1/2
RY/BY_
Ready/Busy – input line (from Flash-
ROM)
SIF1
Sound intermediate frequency
SB1
Secam Band 1 (PCB-Test entrance)
SCL
IC-Bus
SCLSW
Switched I
2
C-Bus
SDA
IC-Bus
SDASW
Switched I
2
C-Bus
SFS_TS
SAW Filter Select Trap Select
STBY
Standby-Line (Flash_Toshiba)
SYNC
Video Sync input
TEMP_SENSE
Temperature Sense Line
VER
HW-version input
VFV
Video from Frontend
VKK
VFT Driver Power Supply
VREFH
Pin for Reference-voltage input to A/D-
converter
VREFL
Pin for Reference-voltage input to A/D-
converter
VS1/2
View Selector 1/2
WR_
Write Enable (CC - Flash-ROM and S-
RAM)
WSFI
Wide Screen Signalling Front In
WU
Wake Up
X1
Oscillator Pin
X12
Oscillator Pin
XIN
Oscillator Pin
XOUT
Oscillator Pin
XT1
Low Frequency Oscillator Pin
XT2
Low Frequency Oscillator Pin
YFIN
Luminance Front In
Digital Board Chrysalis
ADC
Analog to Digital Converter
DAC
Digital to Analog Converter
DENC
Digital (Video) Encoder (Video DAC)
DV
Digital Video (Camcorder)
EF
Emitter Follower
OSD
On-Screen Display
VIP
Video Input Processor (Video ADC)
2Fh
Progressive scan video
2V5
+2V5 Power supply for Link+Codec
IC7431
3V3
+3V3 Power supply
3V3_A
+3V3 Analog power supply for PHY
IC7400
3V3_D
+3V3 Digital power supply for PHY
IC7400
3V3_DLY
+3V3 Power supply for IC7500
3V3_LINK
+3V3 Power supply for Link+Codec
IC7431
3V3_F
+3V3 Power supply for optional Flash
memory IC7432
3V3_RAM
+3V3 Power supply for SDRAM
IC7430
3V3_uP
+3V3 Power supply for Micro-
controller IC7802
3V3_32kHz
+3V3 Power supply for audio format
adaptation circuitry IC7507 and
IC7508
3V3_AC
+3V3 Power supply for audio system
clock generator IC7605 and IC7606
+5V
+5V Power supply
5V_PLL
+5V Power supply for VCO of audio
PLL IC7604
A (1:17)
Flash address lines of uPD72893