Sony KD-34XBR2 Training Manual page 62

There are two LEDs inside the Q box near the DTV tuner. The green LED lights when a DTV station contains the
8VSB modulation scheme. The red error LED lights when the DTV signal stream does not contain the basic
ATSC ID bits in the digital data (wrong data – not ATSC format).
CN7001
+33V
8
+9V
6
+5V
5
FROM
A BD.
CN
+6.5V
1
2
i LINK
EMI BUS
FROM CN7002
IC9205 (QI
The EMI bus carries the DTV digital tuner data to the MID circuit for switching into the video path. See Figure 11-
14 for the completion of the EMI bus.
CN005/
CN8601
SUB
Y
A1
FROM
P
A2
IC200
B
P A3
R
COMP.
I/F
MAIN
FROM
Y A5
P
IC205
A6
B
P
A7
MAIN
R
SW
B BOARD
SYNC
ERR LOCK
(RED)
(GRN)
IF AGC Q7606
Q7605
DATA 0-7
DTV TUNER
BTD-DA402
S DATA/S CLK
IC7206
NVM
IC7002
DC-DC
D3.3V
CONV.
D1.3V
(IC7804-DRC)
A1-A12
D0-D15
BD.)
FIGURE 11-16 - DTV TUNER & AUDIO
SUB
ANALOG
VIDEO
IC7601
DRAM
IC7603
IC7602 MPEG
DRAM ST17000AQA
IC7806
MAIN
A/D
TLC5733AIPM
ANALOG
YO-7,
VIDEO
CO-7
EMI
BUS
FOR
IC8803
VIDEO
PROCESS
IC8804
SRAM
FIGURE 11-14 - VIDEO PROCESS 2 - DTV VIDEO
11. Video Process - HA-3 and RA-5A Chassis
TS BUS
TO IC9202
(QI BD.)
IC7205
DIGITAL
PROCESSOR
ST20TP4CX605
IC7401
AUDIO
DECODER
STJ4600BEV
PCS
IC7201
IC7203
IC7202
IC7204
FLASH
RAM
MEM
SDA SCL
IC8601 A/D
IC8703 MID-XA
IC8901
NVM
ANALOG
IC8601
CXA3506R
YO-7,RO-7,CO-7
A/D, SW
IC7604
CONV. YO-7,CO-7
Y,C
B,
C
R
IC7807
DRC-MF
YO-7,CO-7
CXD
2095AQ
IC8805
D/A
YO-7,CO-7
IC8801OSD
YGV619
QM BOARD
59
D+3.3V
DIO,BS,INS,CLK
TXD
RXD
XRST
IC7402-4
D/A
EMI BUS
TO VIDEO
PROCESSING
MID
IC8902
A2
BUSY
MIDuCOM
MB9489A88F B2
BOX
RST
Y
IC7807 DRC
CB
CR
IC8703
MID-XA
CXD
9509AQ
MID
OUT
YO-7
CRO-7
CN8801/
RBO-7
CN004
(B BD.)
A5
A4
ANALOG
A3
A6
H
S
V
B6
S
OSD R
A7
A8 OSD G
OSD B
A9
3TVP12 1320
9
MEMORY
STICK
PORT
10
CN8801
MAIN
B11 TXD
MICRO
RXD
A11
IC001
XRST
B2
(B BD.)
FL
A2
FR
A3
FL
A4
ANALOG
FR
B4
AUDIO
CENT.
A5
OUT
RL
A6
RR
B6
LF
A7
CN7402
QM BD.
2TVP12 1319 8/30/01
VIDEO
OUTPUT
Y
P
B
P
R
9/6/01