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Block Diagrams, Test Point Overview, and Waveforms
Block Diagram
BLOCK DIAGRAM
D-SUB VGA
(CN6)
D-SUB
VGA Output
(CN9)
BNC (YPbPr)
(CN7)
HDMI1
(CN5)
HDMI2
(CN4)
S-VIDEO
RCA (CVBS)
(Jack1)
BNC (CVBS)
BNC (CVBS)
(J1)
PCBA
Input
Port
Output
I2C Device
Video Signal
QCS1.0S LA
L C D P A N E L(LK460D3LZ18)
(CN16)
VIDEO BUFFER
TSH340
(U24/U27/U28)
SCALER
5251A
(U29A)
HDMI SW
TMDS341SA
(U11)
CSYNC
SYNC
SELECTOR
SEPARATOR
PI5V331(U44)
LM1881(U43)
VIDEO
DECODER
UPD64015
Video Buffer
SDRAM
MM1671
IS42S16100
(U42)
Audio Signal
6.
20
Audio
DAC
AUDIO SW
NJW1411M
Audio
Buffer
TS482ID
AUDIO AMP
YDA138
DDR SDRAM
M13S128324A
RTC
PCF8563
EEPROM
24LC32A
MCU
W79E659
(U34)
FLASH
EN29F040
(U33)
KEYPAD
Board
Data Signal
C
Phone Jack
N
Audio1 IN
1
RCA
Audio2 IN
C
N
RCA
2
Audio3 IN
RCA Audio
Output Terminal
GPIO
EXPANDER
DUAL 1-4 MUX
PI5C3253
RS-232 SP3243
RS-232
RS-232
IN
OUT
IR/LED
Board
UART
Wiring
Power
Module
Speaker
Board
I_17540_017.eps
310108
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