Service manual

- 23 -
BLOCK DIAGRAM
RGB
(
PC/DTV
)
DVI
(
PC/DTV
)
RS232
IR
74ACT253
RX0/1,TX0/1
IR
TX
SCL/ SDA
RGB H/ V
SCL/ SDA
RX/ TX0/ 1/ 2, RX/ TXC
ST3232C
24LC21
74HCT0
8
24LC21
CXA2101
Scart1
Scart 2
Scart3
RF
CVBS
S-VHS
CXA2069Q
SWITCH
Tuner
(
M
)
Tuner
(
S
)
Vin1
(
CVBS
)
VPC3230
(
M
)
Video Decoder
VPC3230
(
S
)
Video Decoder
1H RGB Vin2
(
CVBS
)
MNT OUT
TV OUT
Vin3
(
CVBS
)
TU_Main
TU_Sub
Vin4 YCin4
Main_V
Main_YC
Main_V
Main_YC
SDA6001
Text Processor
Text_V
HYV641620
SRAM
AM29LV160
F-ROM
74LS123
Comp_480i
M52758F
Switc h
S2300
DeInterlac er
YCbCr
/ 8
HY57V64322
SDRAM (8MB)
RGB PC/ DTV
RGB PC
RGB DTV
gm1601
Scaler (Malibu)
Comp DTV
CXA_RGB
RGB_Data
Main_Video
/
24
Sub_Video
/ 8
DVI_Data
TX_Out
RS232_RX/ TX
Comp/ RGB_SW
From Malibu
Digital
Analog
Side - AV
CVBS S-VHS
Vin5
YCin5
Comp_Y
Comp_480I/ P
To Malibu
Vid eo f or TextText
TX0/ 1/ 2/ 3/ C Disp_En
SDATA
SCLK, SLE
HY5DU283222A
SDRAM (128MB)
AM29LV
F-ROM
(
1MB
)
Comp
/ RGB_SW
Comp_480I/ P
Pos t- processing Block is omitted. so-called JEPICO, in this case
TMDS TX is also required. Sound Processing Bloc k Diagram
is separated..
RCA-type Block Diagram is also
separated..
DVI RX
w/ HDCP
ADC
w/ PLL
IEP
2424 2424
10
WIRE
ZHINE
Comp1
(
D
D/
D
T
V
)
V
BOARD
BOARD
BOARD