Philips HTS5540 Service Manual page 20

6 - 1
MAIN BOARD
TABLE OF CONTENTS
Internal IC Diagram ........................................................................... 6-1
Circuit Diagram(part one) .................................................................. 6-2
Circuit Diagram(part two) ................................................................... 6-3
PCB Layout Top View ....................................................................... 6-4
PCB Layout Bottom View .................................................................. 6-5
INTERNAL IC DIAGRAM - MT1389FEX/SN
DVD
PUH
Module
MT1389S
FLASH
Front-panel
DRAM
Remote
INTERNAL IC DIAGRAM - A641604L
CLK
Clock
Generalor
CKE
Address
Row
Address
Buffer
Mode
&
Regisier
Refresh
Counter
CS
Column
Address
RAS
Buffer
&
CAS
Refresh
Counter
WE
6 - 1
DVB-T
HDMI1.2Tx
RGB video
CVBS
8ch Audio
SPDIF
USB2.0/3 in 1 card
reader
Bank D
Bank C
Bank B
Bank A
Sense Amplifier
L(U)DQM
Column Decoder
Data Control Circuit DQ