Philips DVDR730/0x, Service Manual

Page: 148 / 160

Circuit-, IC descriptions and list of abbreviations EN 148 DVDR730/0x 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
R
SET1,2
I A 760 Ohms resistor must be connected from this pin to AGND and is used to
control the amplitudes of the DAC outputs.
S C L I Multifunctional input: MPU Port Serial Interface Clock Input.
S D A I / O Multifunctional pin: MPU Port Serial Data Input/Output.
A L S B I Multifunctional pin. TTL Address Input. This signal sets up the LSB of the MPU
address.
When this pin is tied low the I2C filter is activated which reduces noise on the I2C
interface. When this pin is tied high, the input bandwidth on the I2C lines is
increased.
I 2 C I When this input pin is tied high [Vdd_IO], the ADV7302A/03A interfaces over the
I2C port.
V
DD_IO
P Power supply for digital i/ps and o/ps
V
D D
P Digital power supply
V
AA
P Analog power supply
V
REF
I / O Optional External Voltage Reference Input for DACs or Voltage Reference
Output (1.235V).
E X T _ L F I External Loop filter for the internal PLL.
R T C _ S C R _ T R
I Multifunctional Input: Real Time Control (RTC) input, Timing Reset input,
Subcarrier Reset input.