Philips DVDR725H, Service Manual

Page: 188 / 211

Circuit-, IC descriptions and list of abbreviations
EN 188 HDRW720/0x, DVDR725H/0x 9.
IC U2: GSA03, EPG Board, G-Guide System Controller
Receiver
Video PLL
S DRAM
Controller,
DMA
Data
Receiver
IIC Bus Master
& Slave Controller
OSD/PI P
OSD/TV
BLEND
CSYNC out
HSYNC out
VSYNC out
GEN/LOCK
VSYNC in
IR out
HSYNC in
Composite
Video
Clock Generator ,
8- and 16-bit Timer,
Real Time Clock
IR Transmitter
& Receiver IR in
Out Port s
Clock
Driver &
G-Guide Decryption &
G-Code Decode Logic
D/A
FIR Digital
Filter
CSYNC
Separator
Error Correction Logic
16 bit data bus
Clamping
24 bit addr bus
A/D
bus control
CPU Bus &
Interrupt Handler
On Screen
Display
Controller
To CPU
Back
Porch
To SDRAM
Delay
Output Ports
SDRAM Bus
CVBS
CSYNC
in
R/Y out
G/U out
B/V out
Slave IIC Bus
Master IIC Bus
PLL
PLL