Philips DVP720SA Service Manual page 20

7-1
AV BOARD
TABLE OF CONTENTS
Brief Introduction of the AV Board ................................... 7-1
Block Diagram ................................................................. 7-1
Top View Layout .............................................................. 7-2
Bottom View Layout ......................................................... 7-3
Circuit Diagram (Part 1) ................................................... 7-4
Circuit Diagram (Part 2) ................................................... 7-5
Circuit Diagram (Part 3) ................................................... 7-6
Electrical parts list ............................................................ 7-7
BRIEF INTRODUCTION OF THE AV BOARD
The AV Board consists of the following features :
A. VIDEO OUTPUT
- CVBS
- S-Video
- YUV
- Scart RGB (For Europe Model)
- Progressive Scan
B. AUDIO OUTPUT
- Stereo / 6 Channel
- Coaxial / Optical
AV BOARD - BLOCK DIAGRAM
PLL Audio Clock
Synthesizer
MK2703
Scart
S
L/R
C
A
R
T
CVBS
CVBS
Y/C
S-VIDEO
RGB
Y
SD6.1M
U YUV (using MT1389
Video RGB/YUV
Switch
ADG733
V
SPDIF
OPTICAL
YUV
COAXIAL
Standby
D2
Control
Board
+3V3
+1V8
+3V3
PCMCIA
Switch Mode +12V +8V
+5V
Power Supply
-12V
-24V
AV Board Circuitry
External Circuitry
7-1
6-channel
DAC L/R
CS4360
Mute
MUTE
Ls/Rs
2-channel
DAC
AK4382
Mute
MUTE
Cen/LFE
MUTE
Mute
chipset)
Stereo L/R
Mute
Scart
L/R
LED
ASA
Loader
Key Matrix
IR Receiver FD Driver
Princeton
uP16312
7 Digit FTD Display
L
R
Ls
Rs
Center
LFE
L
R
Standby uP
TMP87C809BM