No.51952
No.51952
5
AV28CT1EKS/AV28CT1EKB
AV28CT1EPS/AV28CT1EPB
AV28CT1EIS
AV28CT1EKS/AV28CT1EKB
AV28CT1EPS/AV28CT1EPB
AV28CT1EIS
2-7
2-8
MAIN PWB CIRCUIT DIAGRAM
[2/2]
MSP_RES
OSD_HP
X
X831
X
RESET
IC832
OSD_VP
X
C839
X
D831
X
AUTO PANORAMA IC
IC831
X
C837
X
R850
X
R852
X
R843
X
Q836
X
Q834
X
Q835
X
R845
X
Q833
X
Q832
X
R841
X
R835
X
R834
X
R839
X
R838
X
R840
X
R844
X
R837
X
R842
X
C835
X
C833
X
C834
S_COR
X
C836
X
N
C831
X
R853
X
R854
X
R855
X
CN0C1
X
R856
X
C838
X
R849
X
R851
*1
Q710
X
R846
X
R847
X
R848
AFC_MAIN
*2
Q708
A
V
_LINK
4.7k
R720
SYNC
TXT_YS
*2
BUFFER
Q871
TXT_B
TXT_G
CENT
.VCC
SCL2
QGB1506L1-16
CN005
QGB1506L1-16
CN004
SD
A2
SCL1
SD
A1
STB
4.7k
R759
4.7k
R747
10k
R756
C879
*3
D707
X
CH
C726
9V
12V
4.7k
R722
32V
R743
22k
R784
2.7k
R788
SP_L
SP_R
5V
X
C832
*3
D708
TXT_R
2.2k
R802
33k
R801
Y
ORCV
M37280MK-221SP
IC701
220
R749
2.2k
R771
REG
OSD_YS
2.2k
R772
*3
D710
AG
C
EXT1/O
TH
TU1_SW1
OSD_B
2.2k
R777
OSD_G
OSD_R
2.2k
R778
220
R764
4.7
QQL244K-4R7Z
L701
0.1
NCB21EK-104X
C704
100/10
C705
0.1
NCB21EK-104X
C706
TU1_SW0
QGF1220C2-19
CN001
LOCK
MEMORY
IC702
330
R740
5V REG/RESET
L78LR05E-MA
IC703
4.7k
R724
150p
CH
C712
SJK-
1916A-U2
100k
R717
X
C723
MA3036-X
D705
A.GND
4.7k
R725
47k
R789
X
D709
HBLK_R
HBLK_L
10k
R767
0.001
C725
6.8k
R790
3.3k
R805
0.1
NCB21EK-104X
C711
33k
R775
2.2k
R779
33k
R774
22k
R785
1/50
C716
3.3k
R787
47k
R786
2.2k
R773
1/50
C717
SJK-
1712A-U2
0.1
NCB21EK-104X
C668
47/25
C708
X
R736
18p
220p
1k
R716
A_MUTE
AMP_MUTE
100
X
X
R741
220
R729
R744
100
220
R730
X
*1
Q702
2.7k
R770
220
R731
X
R739
X
R737
*
R744
*
R743
220
R748
10k
R763
4.7k
R727
47/25
C703
0.47/50
C707
4.7k
R745
1k
R780
0.033
C718
X
C722
QAX0667-001Z
X701
180k
R806
3.9
QQL244K-3R9Z
L702
9p
CH
C709
9p
CH
C710
*3
D706
*3
D704
6.8k
R718
6.8k
R719
X
N
C702
X
D703
X
R715
X
Q837
X
R857
X
R859
X
R858
*1
Q709
1k
R755
1k
R753
10k
R707
*1
Q703
MA3068/M/-X
D701
*1
Q704
220
R701
27k
R703
10k
R710
10k
R708
10k
R709
1k
R714
1k
R713
220
R750
*2
Q705
1.5k
R878
330
R884
1k
R876
3.3
QQL244K-3R3Z
K872
*1
BUFFER
Q872
39k
R877
1k
R883
0
Y871
1.5k
R880
10/50
C887
1.5k
R879
330
R881
2.2k
R873
22k
R706
0.1
NCB21EK-104X
C881
10/50
C888
0.1
NCB21EK-104X
C885
470/10
C880
2.2k
R872
10/50
C889
4.7
QQL244K-4R7Z
L871
CH41169-006Y
CN0C2
ET206
TELETEXT DECODERS
IC872
1k
R871
0.1
NCB21EK-104X
C884
220p
C873
15p
CH
C874
0.001
C876
0.001
C878
15p
C875
0.022
C872
47/25
C882
0.1
NCB21EK-104X
C877
0.01
C886
330
R882
2.7k
R874
0.01
C883
0.1
NCB21EK-104X
C871
*
CH
C879
13.875MHz
CE41257-001Z
X871
220
R751
ET417
DATA SLICER
IC871
220
R752
220
R765
220
R766
*3
D702
100k
R875
47k
R704
*1
Q701
1k
R705
1
NCF21CZ-105X
C701
TXT_B
SD
A1
SCL1
REMOCON
KEY1
AA_SCL
12V
VP
AA_SDA
AA_FRQ
AA_50/60
KEY2
TXT_R
TXT_G
ECO
SP_L
SP_R
OSD_VP
S_COR
SD
A3
AFC_MAIN
SCL2
AA_50/60
SCL3
SD
A3
OSD_HP
SCL3
VP
SD
A2
B
US_FREE
B
US_FREE
REMOCON
ECO
OSD_HP
KEY2
KEY1
OSD_VP
SP_L
SYNC
AA_SD
A
TXT_YS
SCL1
SD
A1
5V
AFC_MAIN
SYNC
TXT_YS
TXT_B
TXT_G
TXT_R
SCL2
SD
A2
SCL1
SD
A1
9V
SP_R
S_COR
AA_SCL
AA_FRQ
LOCK
LOCK
OUT
LR_CENT
VDD
R
O
TAT
IO
N
GND
AA_FRQ
H_BLK_L
H_BLK_R
SCL3
L701
SD
A3
CST8.00MTW
TU1_SW1
REG
MSP
.
or
R
G
B
NS CEN/O
T
H
TU1_SW0
EXT/O
T
H
DOLBY IFCS
DOLBY D
A
T
YS
SCL1
SCL2
DOLBY CLOCK
SD
A1
SD
A2
TEXT RESET
AMP MUTING
A.MUTING
GND
L702
PO
WER
BBE ON/OFF
SCL3
SDA3
MICRO
RESET
ECO IN
OSC2
KEY2
AA_SCL
AA_SD
A
AA_50/60
OSC1
5V
GND A2
A1
A0
RC VDD
IN
KEY1
AFC MAIN
X'T
A
L
INV
X'T
A
L
GND
I C B
US FREE
2
DOLBY IFOK
5V
A
V
_LINK
OUT
AG
C
COMPUTER
H/P DET
PR
O
TECT
INV
REMOCON
CANCEL
N/S
S_COR
GND
GND
GND
GND
NC
AUDIO GND
AUDIO GND
AUDIO GND
C668
A
V_LINKIN
VPULS
HPULS
ON/OFF
cd
GND
RESET
OUT
0
LOCK
X
BW
*1
*2
*3
*4
*5
*6
*7
*8
:
:
:
:
:
:
:
:
:
:
FLAG1
:
OPTION(NON MOUNT)
IM-BW
NRSA02J-0R0X
2SC2412K/QR/-X
NC
STB_5V
2SA1037AK/QR/-X
MA111-X
MA3100/M/-X
DTC124EKA-X
DTA124EKA-X
2SC1740S/QR/-T
2SA933AS/QR/-T
NOTE
KEY2
KEY1
STB_5V
REMOCON
ECO
P_ON/OFF
12V
SP_L
SP_L
SP_R
SP_R
T
O
CONTR
OL PB ASSY
5V
5V
5V
GND
GND
GND
GND
A
UDIO GND
A
UDIO GND
GND
GND
GND
D_GND
GND
GND
GND
GND
GND
FLAG2
P_ON/OFF
CENT
.VCC
CENT
.VCC
NC
NC
NC
NC
PR
O
TECT
32V
STB
12V
12V
9V
9V
3.3V
TO POW DEF PB ASSY
REF
RGBSET
AGND
RED
GREEN
SJK-1916A-U2(AV28CT1EKS/EKB)
INV
INV
BUFFER
AMP
AMP
AVcc
BUFFER
SW
AT24C1628CT1EP
BLUE
MUTE
BLANK
SDA
SCL
TEST3
WIND
GND
SCL1
CSB
TCLK
TDATA
TEST4
TEST1
DGND
CLKIN
RSTB
DVcc
VIDEO
SYNC
TEST5
SCAN_0
SYNC
DGND
WIND
DVcc
OSCOUT
DGND
TDATA
TCLK
TSTAPLB
BIAS
AGND
CREF
AVcc
OSC2
OSC1
AGND
CSIG
SSIG
TSIG
SD
A1
SCL3
SD
A3
B
US_FREE
MAIN PWB
(2/2)
SJK-1716A-U2(AV28CT1EPS/EPB/EIS)
DIFFERENCE LIST
3V
0.9V
0V
2.1V
2.9V
4.9V
1.3V
0V
1.3V
2.7V
0V
0V
4.9V
0V
0V
3.3V
3.5V
4.9V
2.5V
2.5V
3.2V
0V
-0.5V
0V
5V
4.6
V
4.9V
0V
7V
2.4V
2.4V
5.7
V
0V
0V
0V
2V
2V
4.9V
2.2V
0V
4.9V
0V
4.7V 0V
0V
0V
0V
3.5V
2.4V 4.8V 4.8V 5.1V 2V 0V
0V
0V 4.6V 4V
4.9V
0V
0V
2.6V 2.7V 4.9V
4.9V
3.2V
3.2V
3.7V
3.9V
3.4V
4.9V
0V
4.9V
4.9V
4V
0V
0.2V
4.5V
0.4V
4.9V
4.9V
0V 4.5V 1V
0V
0V 0V
0V
4.9
V
4.9
V
4.9
V
4.9
V
4.9V
0V
4.9V
3.1V
0V
1.3V
1.7V
0V
3.1V
4.9V
0V
4.9V
2.1V
0V
0V
4.9V
0.1V
0.1V
4.5V
0V
4.9V
4.5V
0V
0.1V
4.8V
2.1V
0V
0.1V
0.1V
0V
0V