Zenith ZLD15A1B, Service Manual

Page: 26 / 34

CM154 - 923-03495
26
ZLD15A1B - DIAGRAMS
DIAGRAMS
BLOCK DIAGRAM
PC
INPUT
....
H/P
S
-INPUT
VIDEO
INPUT
DC
INPT
(12V)
V
L
R
Y
PB
PR
POWER
DC
to
DC
Converter
(SI786,SI4808DY
,T801)
POWER
DC
to
DC
Converter
(SI786,SI4808DY
,T801)
IC302
H-
FIL
TER
(DRP
Processor)
LGTV
-1001
IC302
H-
FIL
TER
(DRP
Processor)
LGTV
-1001
IC301
Color
Decoder/
A/D
Converter
VPC-3230D
(
20.25MHz)
.
C
O
M
B/
FI
L
:
4
H
<
IN
P
UT
>
.
4
CV
BS
.1
S
-
V
H
S
.
2
R
G
B/
Y
CrC
b
.
1
F/B
.
1
CV
BS
O
U
T
P
UT
.
Y
/
Cr/
Cb
O
U
T
P
UT
D4
T
e
rminal
DVD/DTV
INPUT
(480i/480p/720p/1080i
)
3.3V
IC601
Audio
P
rocessor
MSP-3440
SIF_IN SC2_IN SC2_OUT SC3_IN I2
S:2
------18.432MHz--- L-SPK/WOOFER H/P
,
I2S
IC601
Audio
P
rocessor
MSP-3440
SIF_IN SC2_IN SC2_OUT SC3_IN I2
S:2
------18.432MHz--- L-SPK/WOOFER H/P
,
I2S
8.0V
5.0V
LR
TUNERTUNER
ANT
(RF)
INPUT
CVBS
IC1
MICOM
(TXT/CAPTION)
6MHZ
IC1
MICOM
(TXT/CAPTION)
6MHZ
IC904
EPROM
A
T27C020
IC904
EPROM
A
T27C020
IC902
CPU
80C652
IC902
CPU
80C652
IC901
JAGASM
(SCALER
/
A/D
Converter
)
IC901
JAGASM
(SCALER
A/D
Converter
/
)
MEMOR
Y
MEMOR
Y
IC912
SIL140
IC912
SIL140
TMDSTMDS
Audio
AMP
LA4282
12V
L-SPK
R-SPK
MEMOR
Y
MEMOR
Y
SYNC
SEP
.
SYNC
SEP
.
Y
H/V
A1
A2
C
SIF
SCL/SDA
8bit
8bit
5.0
V
3.3V
L
VDS
L
VDS
5.0V
..
.
.
..
.
.
..
.
3.3
V
12V
5V
3.3V
5V
3.3V
2.5V
R/G/B
8/8/8BIT
PC-AUDIO
INPUT
CLK
H-
s
ync
AGC
CAPT
IO
N
R/
G
/B
/F
B
5.0V
Y/
U
/V
4:2:2
Y/
U
/V
4:2:2
SCL/
SD A
SCL/ SDA
33V
T
O
INVER
TER
SCL SDA
DVD/DTV
-AUDIO
INPUT
33V
5V
SC L/S DA