Zenith P50W38, Service Manual

Page: 25 / 81

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BLOCK DIAGRAM
IC501
Rembrandt
-I
Scaler
5V/3.3V/1.8V #11
IC404
FLI2310
De_interlace
3.3V/2.5V #10
IC201
AD9888
ADC
3.3V #3
IC401
VPC3230(M)
Decoder
5V/3.3V #9
IC202
Sil169B
TMDS_RX
3.3V #4
IC502/503/504
K4S643232E
SDRAM (8Mbyte)
3.3V
#12
IC502/503/504
K4S643232E
SDRAM (8Mbyte)
3.3V
#12
YUV 16 bit
15
Pin
D_SUB
PC
-
IN
IC701
R8820LV
CPU
3.3V #13
IC703
MX29LV160B
Flash
-ROM (2MByte)
3.3V IC702
K6R4016V1C
SRAM (512KB)
3.3V
21
PIN
For
LG 50
PDP
-50
IC301
uPD64083 3D
-
Comb
9/5/3.3/2.5 #8
DVI
-
I
IC405
K4S643232E
SDRAM(8Mbyte)
3.3V #7
9
PIN
RS
-
232C
IC750
DS232AS
RS
-232C
5VST
PORT_EXTEND
(74LVC244/74LVC574)
3.3V
#14
15
Pin
D_SUB
PC
-
OUT
IC101
CXA2089 SWITCH
Y/C
AV1
L/R for
Component
IC302
LA7151
SWITCH
IC104
OPA3682
AMP
5V #1
RGB /HV
H/V
RGB
B
TX0
`
,TX1
`
TX2
`
,TXC`
D0
`
,D1
`
D2
`
,IDK
`
RGB
A
H/V/CLK/
FIELD
TXD0,1 RXD0,1
SVHS
BNCBNC
IC101
MSP3440
Sound
Processor
IC105
LA4282
AUDIO AMP
PC L/R
L/R
L/R
L/R for SVHS,BNC
2,3
rd
Pin(T1,R1)
:Control/Download
4,6
th
Pin(T2,R2)
:Debugging
IC601 Sil160
TMDS_TX
3.3V #16
Y/
Pb
/Pr(480i)
1H R/G/B
COMPONENT Y/
Pb
/Pr
IC402
74LS123
5V #9
Monostable Multivibrator Y,
Pb
,Pr (480p
`
) : high
Y,
Cb
,Cr (480i) : low
YUV 16 bit
#:
the number of the circuit schematic
Indicate even/odd for de_interlace
24
24
8
8
T.M.D.S
:
Transition Minimized Differential Signaling
PHIL KIM 2003.02.13
Wired _OR
50
KK PDP VSC Block Diagram
A/V Interface
Comp 480I/P,ID_AT ID_PAL/NTSC, FAN ALARM,KEY
CH1
CH0
U
-Com
ID
Y/
Pb
/Pr
(480P
¸¨
)
Y/C
Y/C
AV
PC L/R
CXA2089 L/R OUT
IC752
74ACT253
5VST
¸ł
IR
Y/C
STB L/R from LST
-
2200
STB L/R
FLI2310
De_interlace
3.3V/2.5V #6
K4S643232E
SDRAM(8Mbyte)
3.3V #7
RGB(PC)
RGB(DTV)
YUV (Video)
VPC3230(S)
Decoder
5V/3.3V #5
AV
AV
Y/C
Buff
T541 #6
24 24
16
Scart1 R/G/B Scart2
Half
IC101
CXA2089
SWITCH
S2_V, L/R
Y/C
PAL
Sync signal for R/G/B,L/R
SVHS
L/R for SVHS
NTSC
Y/C
Y/C
1
H R/G/B
RGB
74
HCT08
TX
"