Toshiba DVR80KF Service Manual page 55

DTV Module Block Diagram
TU1800
(TUNER UNIT)
CN1800 CN2700
DIF-OUT1 18 1 DIF-OUT1
DIF-OUT2 19 2 DIF-OUT2
IF-AGC 20 3 IF-AGC
SCL 9
SDA 10
IC2500
(DVB-T DEMODULATOR) IC2602 (DTV SIGNAL PROCESS)
50 93
1 30 49 95
ADC
2 31 /AGC I/F 48 96
DTV
/DEMOD.
3 39 47 97
DIGITAL SIGNAL
/DECODER
64 94 PROCESS
RESET 1 100 RESET
SDA 44 102 SDA
SCL 43 103 SCL
*1 51,53~59,65~72
*2 64,75~80,86~89,91
*3 22~26,29~35
*4 2,4,5,7,8,10,11,13,42,44,45,
47,48,50,51,53
SDA 15
SCL 14
VIDEO
118
VIDEO
D/A
ENCODER 122
CONVERTER
IC2901
(OP AMP)
L-CH
AUDIO 110 2
AUDIO D/A
INTERFACE CONVERTER R-CH
109 6
IC2603
(MEMORY)
SPI-DATA0 15 2 SPI-DATA0
SPI-DATA1 13 5 SPI-DATA1
SPI-CLK 16 6 SPI-CLK
SPI-CE 17 1 SPI-CE
DTV-TXD 105
DTV-RXD 106
DTV-SYS-RESET 44
DATA BUS(0-15)
*1
SDRAM
ADDRESS BUS(0-11)
I/F
*2
IC2800 (DDR SDRAM)
*3
DDR SDRAM
*4
BOARD DTV MODULE UNIT
BOARD AV
1-13-11
NOTE: BOARD MEANS PRINTED CIRCUIT BOARD.
REC VIDEO SIGNAL
CN2701 CN1800
11 DTV-Y 26
13 DTV-C 28
14 DTV-AUDIO(L) 29
15 DTV-AUDIO(R) 30
1
7
CN2700 CN1800
15 DTV-TXD 15
14 DTV-RXD 14
12 DTV-SYS-RESET 12
P-ON+5V
Q1805
CN2700 CN1800 Q1804,Q1807
4 TU-SDA 4 SW
5 TU-SCL 5
Q1803,Q1806
SW
REC AUDIO SIGNAL
DTV-Y
TO VIDEO
DTV-C SELECTOR
BLOCK DIAGRAM
DTV-AUDIO(L)
TO AUDIO
DTV-AUDIO(R) SELECTOR
BLOCK DIAGRAM
DTV-TXD
DTV-RXD
TO SUB SYSTEM
DTV-SYS-RESET CONTROL
BLOCK DIAGRAM
DTV-S-SCLK
IIC-BUS SDA
TO SERVO
/SYSTEM
CONTROL
IIC-BUS SCL BLOCK DIAGRAM
E9TK5BLDTV