Magnavox H2080MW8, Service Manual

Page: 27 / 67

1-10-6
DTV Module Block Diagram
E2H00BLDTV
IC101
(DTV SIGNAL PR
OCESS)
IC252 (A
UDIO D/A CONVER
TER)
IC202
(FLASH MEMOR
Y)
ADC /A
GC I/F
DIGIT
A
L SIGNAL
PR
OCESS
SYSTEM DECODER /VIDEO DECODER /VIDEO FORMA
T
CONVER
TER
/2D GRAPHICS
TU1701 (TUNER UNIT)
DIF-OUT1
CN1752
CN102
LPF
DIF-OUT2
DIF A
G
C
SD
A
SCL
27MHz OSC 27MHz OSC
DTV MODULE CB
A UNIT
A
V
CB
A
REC VIDEO SIGNAL
PB VIDEO SIGNAL
REC AUDIO SIGNAL
PB AUDIO SIGNAL
11
11
DIF-OUT1
12
12
DIF-OUT2
99
DIF-A
GC
14
14
DTV
-VIDEO
15
15
DTV
-A
UDIO(L)
16
16
DTV
-A
UDIO(R)
21 20 18
174 178
189 159 158 162 161
6 5
15 14
7 8
144 143
140
27MHz OSC
X271
14 15
27MHz OSC 27MHz OSC
27MHz OSC
X281
4 5
VIDEO ENCODER A
UDIO
DECODER
A
UDIO
D/A CONVER
TER
SDRAM I/F FLASH MEMOR
Y
I/F
IC201
(DDR SDRAM)
14
14
SD
A
15
15
SCL
14 15
55
TU-SD
A
44
TU-SCL
CN1752
L-CH R-CH
SD
A
SCL
41
B
US-CONT
*1
*1
79~81,85,87,89~92,94,96~98,
102,104,106
*2
*2
55,56,58,60,61,116,119,120,124,
125,127,129,130
*3
*3
1,2,7~12,20,206,209,211,213~216
*4
*4
23~25,27,29,32~36,42~44,47,48,50,
52~54,205
*5
*5
1~9,16~25,48
*6
*6
29~36,38~45
*7
*7
28~32,35~42
*8
*8
2,4,5,7,8,10,11,13,54,56,57,59,60,
62,63,65
T
O
VIDEO
BLOCK DIA
GRAM
T
O
A
UDIO
BLOCK DIA
GRAM
T
O
SYSTEM CONTR
O
L
BLOCK DIA
GRAM
CN1751
CN101
SD
A
DTV
-VIDEO
DTV
-A
UDIO(L)
DTV
-A
UDIO(R)
SCL
DATA BUS(0-15) ADDRESS BUS(0-12) DATA BUS(0-15) ADDRESS BUS(1-22)
CN102
DDR SDRAM FLASH MEMOR
Y
SW
SW
Q211
Q212
Q213
Q214
SD
A
IC1757
6
SCL
5
(MEMOR
Y
)