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MODEL HT28745
Chassis No. 28745-00
AV_VIDEO Board
Main Board
Digital
Module
ATSC_DECODER
I/P
SCALAR
PIP(PAP)
P-FAIL
YUV
Selector
Audio Control
SYNC_SEP. For Component
AUDIO
OUT
1
12
1
5
Y IN
U IN
V IN
V IN
U IN
Y IN
AV3
COMPONENT
INPUT
AV2
COMPONENT
INPUT
LOUT
ROUT
CPU
YUV_SEL
IN1
AVSW1
29PIN
AVSW2
6PIN
IN2
IN3
H
L
L
H
L
L
OUTPUT SIGNAL
AV2/AV3 COMPONENT
AV2 COMPONENT
AV3 COMPONENT
SW1
2PIN
SW2
4PIN
IN2
IN3
IN1
L
L
L/H
H
H
L
SW1
2PIN
SW2
4PIN
IC1261/IC1262/IC1263
DM_SIN
JW1
Audio AMP
ABL
AFC
H_DRIVE
PCC
V_RAMP–
V_TIM
AFC
H_GND
BLK_FULL
OSD_R
OSD_G
OSD_B
DM_SCLK
DM_SOUT
HS
VS
DM_SCLK
DM_SOUT
DM_2H
SWD_UDM
VS
HS
OSD_R
KEY_IN
SWD_VDM
STAT_FACT
ACK_FACT
SDA_TV
STAT_FACT
ACK_FACT
SCL_TV
NORMAL_SW
SWD_YDM
SDA_TV
SDA_AV
SCL_AV
KEY_IN
RC_IN
AV2_V
AV2_U
AV2_Y
AV3_Y
AV3_U
AV3_V
AV2_V
AV2_U
DM_CS
DM_R
DM_L
AV3_HS
AV3_VS
PWR_SW
PWR_SW
TV_L
TV_R
SWD_YDM
SWD_UDM
SWD_VDM
AVSW2
AVSW2
AVSW1
AVSW1
AVSW1
AVSW1
AV3_Y
AV3_Y
AV2_Y
AV2_Y
RC_IN
DM_SIN
BLK_FULL
OSD_G
OSD_B
AFC
H_DRIVE
V_TIM
V_RAMP–
HOLD_DOWN
HOLD_DOWN
HOLD_DOWN
PCC
TV_R
TV_L
TV_V
SWD_HS
SWD_VS
SWD_L
AV3_U
AV3_V
DM_YP
DM_UP
DM_VP
DM_VS
ABL
SWD_R
SCL_TV
SDA_TV
SWD_CV
SWD_SY
SWD_SC
SWD_R
SWD_R
SWD_L
SWD_L
DM_VS
DM_2H
DM_UP
DM_YP
DM_VP
P-FAIL
P-FAIL
P-FAIL
P-FAIL
R_IN
L_IN
SWD_CV
SWD_SC
SWD_SY
DM_R
DM_L
SCL_AV
SDA_AV
SCL_AV
SDA_AV
SDA_TV
SCL_TV
SDA_TV
SCL_TV
SCL_TV
DM_CS
AGND
SWD_YCAP
SWD_YCAP
SWD_COMPONENT
AMUTE
AMUTE
TV_V
1/10
GJ10KC
R828
16EM10
LBWA
C2904
1/10GJ
4.7KC
R839
D896
1/10GJ
4.7KC
R849
47
R2953
16EM10
LBWA
C2907
JP006
J
47
R2926
75
R1266
75
R2931
47
R2942
16EM
47LBWA
C1262
100
R896
1/10GJ
12KC
R2927
3.3K
R810
L1851
1/10GJ75C
R1262
25KZ
0.1LZF
C871
47
R2916
16PM22LBZA
C1270
25KZ
0.1LZF
C1261
TC7SET08FP
IC804
1/10GJ
10KC
R851
1/10
GJ1MC
R866
25KZ
0.1
LZF
C2905
25KZ
0.1LZF
C1852
75
R2932
1/10GJ
2.2KC
R2943
16PM22LBZA
C1273
25KZ
0.1
LZF
C1263
1/10GJ
4.7KC
R846
1/10GJ
47KC
R853
100
R807
16EM
100
LBWA
C2908
16EM
47LBWA
C1851
47
R2906
1/10GJ
5.6KC
R856
1/10GJ
10KC
R842
16PM22LBZA
C1276
25KZ
0.1
LZF
C1264
47K
R852
1/10GJ
1.8KC
R653
1/10GJ
1KC
R1279
1/10GJ
33KC
R1285
L101
100
R814
270
R103
1/10GJ
12KC
R2946
1/10GJ
10KC
R2829
AH
Q2942
1K
R815
25KZ
0.1
LZF
C2914
1/10GJ100C
R806
1/10
GF
62KC
R3613
1/10GJ
10KC
R887
AH
Q2943
1/10GJ
1KC
R1298
75
R2933
25KZ
0.1LZF
C1265
1/10GJ
2.2KC
R2910
1/10GJ
390C
R654
K9FRA
1
L_IN
2
GND
3
R_IN
4
9V-1
5
GND
6
AMUTE
7
GND
8
GND
1/10GJ
5.6KC
R855
AH
Q2950
1/10GJ
18KC
R1286
CJ100CL
C1854
1/10GJ75C
R1265
47
R2948
1/10GJ75C
R2958
MC74HC04AFP
IC1851
100
R827
AH
Q2910
75
R1263
100
R2827
KGNDKG1
KZ0.01
LZF
C804
K6PDD
PWR_SW
Power
FAIL
5VAL
GND
TUNING
+B
1/10GJ
18KC
R1289
K6PDA
1
GND
GND
14VDM
14VDM
GND
GND
14VTV
14VTV
AGND
10
15VA
J
R657
D858
CJ100CL
C1853
1/10GJ
100KC
R3437
1/10GJ
1.5KC
R833
KK
2200
LZB
C3424
AJ
Q825
1/10GJ
360C
R2809
EM1LBWA
C2825
K6PDB
1
ABL
GND
AFC
H_GND
H_DRIVE
GND
PCC
HOLD_DOWN
GND
V_RAMP–
NORMAL_SW
1/10GJ
2.2KC
R2930
D857
1/10GZ0C
R659
D665
1/10GJ75C
R2956
EM1LBWA
C3402
Q2903
1/10
GJ
10KC
R3602
1/10GJ
560C
R3434
KK
2200
LZB
C844
1/10GJ
10KC
R2828
25EM
1000
LBWA
C652
KZ0.01
LZF
C814
1/10GJ
10KC
R831
AH
Q2904
1/10GJ
3.3KC
R656
EM1LBWA
C2827
1/10GZ0C
R2811
100
R805
1/10GJ
33KC
R1287
EM1
LBWA
C3428
AH
Q2902
1/10GJ
1KC
R665
EM0.1LBWA
C3408
KSCL
1
1/10GJ
18KC
R1296
25KZ
0.1LZF
C651
KZ0.01
LZF
C823
1/10GJ
3.9KC
R3628
EM1
LBWA
C3417
1/10GJ
10KC
R3412
EM1
LBWA
C3425
KSDA
1
1/10GJ
12KC
R2908
D659
100
R3414
CJ180CL
C1855
25KZ
0.1LZF
C2804
CJ390CL
C3613
KK1000
LZB
C825
47
R2919
HJ0.33G
C3420
AH
Q3457
EM0.1
LBWA
C3243
3.3K
R1852
1/10GJ75C
R1268
25KZ
0.1LZF
C2803
CJ220
CL
C852
1/10
GJ
10KC
R802
1/10GJ
3.9KC
R2819
AH
Q1295
2.2K
R826
KGND
1
1/10GZ0C
R803
25KZ
0.1LZF
C2802
EM1
LBWA
C824
1/10
GJ
100KC
R3609
J
R3610
EM1
LBWA
C3427
AH
Q3459
16EM10
LBWA
C2940
16EM
100
LBWA
C661
25KZ
0.1LZF
C2801
L804
56
R1280
EM1
LBWA
C3429
AH
Q851
56
R1297
D899
5.6K
R841
25KZ
0.1
LZF
C2950
1/10GJ
560C
R652
25KZ
0.1LZF
C2813
100
R106
EM1
LBWA
C3419
100
R898
1/10GJ
1KC
R1295
16EM10
LBWA
C2943
100
R3413
25KZ
0.1LZF
C2814
10EM
47
LBWA
C865
1/10
GJ1MC
R3608
EM1LBWA
C3411
AH
Q1297
1/10GJ
10KC
R3601
16EM22
LBWA
C1294
1/10GJ
12KC
R2951
16EM10
LBWA
C2945
75
R2954
L661
X2809
D810
EM1LBWA
C3404
AH
Q2906
100
R838
16EM22
LBWA
C1293
56
R1294
16EM
100
LBWA
C2951
EM
2.2
LBWA
C2806
KZ
0.01
LZF
C867
1/10GJ
6.8KC
R3611
EM1LBWA
C3412
AH
Q1293
100
R899
16EM22
LBWA
C1292
1/10GJ
10KC
R837
75
R2955
KK0.01
LZB
C2807
25KZ
0.1LZF
C1815
1/10GJ 3KC
R3623
KK2200LZB
C3407
5.6K
R2807
25KZ
0.1
LZF
C2811
47
R2929
EM1LBWA
C3403
PM4.7
LBZA
C3630
K5DMC
10
4
11
5
12
6
7
8
9
1
2
3
16EM
100
LBWA
C2810
D842
PM4.7 LBZA
C3629
D661
K5DMA
10
4
11
5
12
6
7
8
9
1
2
3
3.3K
R843
16EM
100
LBWA
C2812
CJ
22CL
C842
47
R2944
75
R2945
TA1318AFP
IC2801
L837
47
R2909
10TK10DR
C3627
D809
100
R101
CJ22CL
C832
KSPG1
PM4.7
LBZA
C3626
220
R3604
D841
1K
R895
10TK
3.3DR
C3624
1/10GJ
3.3KC
R3622
470
R2921
1/10GJ
1KC
R2901
KSPG2
CJ
22CL
C841
KK0.047 LZB
C3623
18K
R1851
16EM10
LBWA
C2902
D812
1/10GJ
3.9KC
R2816
10EM
1000
LBWA
C658
1/10GZ
0C
R2824
CJ
22CL
C840
KK2700
LZB
C3622
220
R3603
100
R817
L654
D840
PM4.7
LBZA
C3620
1K
R812
1/10GJ
1KC
R676
1/10GJ
100C
R2902
25EM
4.7
LBWA
C3619
1/10GJ
5.6KC
R801
D805
1K
R894
25KZ
0.1LZF
C655
1/10GJ
100C
R2821
D839
PM4.7
LBZA
C3617
1/10GJ
3.3KC
R811
L811
1/10GJ
100C
R2904
10EM
1000
LBWA
C660
25EM
4.7
LBWA
C3615
100
R816
CJ22CL
C802
RK46
-304
D672
1K
R824
D838
16EM
47
LBWA
C3612
100
R845
D801
1/10GJ
4.7KC
R834
L652
1/10GJ
10KC
R886
EM
0.47
LBWA
C3610
CJ
22CL
C801
1/10GJ
1KC
R2922
1/10GJ820C
R634
1/10GJ
10KC
R3422
D837
KK
0.012
LZB
C3609
1/10GJ
2.2KC
R2920
CJ33
CL
C816
1/10GJ
56C
R1288
HJ1G
C654
100
R829
KK270
LZB
C837
KK5600
LZB
C3608
100
R844
D816
1/10GJ680C
R650
25EM
1000
LBWA
C650
1/10GJ
100C
R2822
PM4.7
LBZA
C3606
100
R809
X8219
1/10GJ75C
R2960
25KZ
0.1LZF
C648
IC3601
CXA2104S
30
SOUT
10
PLINT
11
COMPIN
12
VGR
13
IREF
14
GND
15
SAPTC
16
VCC
17
SUBOUT
18
STIN
19
NOISETC
1
TVOUT_R
2
TVOUT_L
3
SDA
20
SAPOUT
21
SAPIN
4
SCL
22
VE
5
DGND
23
VEWGT
6
MAININ
24
VETC
7
MAINOUT
25
VEOUT
8
PCINT1
26
VCAIN
9
PCINT2
27
VCATC
28
VCAWGT
29
NC
CJ22CL
C821
1/10GJ
56C
R1299
1/10GJ
12KC
R2940
CJ56
CL
C836
2SJ0.82
R666
CJ22CL
C818
L653
CC4CL
C856
1/10GJ
68KC
R1857
1/10GJ
56C
R1291
1/10GJ
4.7KC
R835
CC4CL
C855
470
R2903
1/10GJ
1KC
R3460
100
R2815
1/10GJ
12KC
R2907
CJ56
CL
C835
KK
0.022
LZB
C3406
1/10GJ
12KC
R2941
CJ56
CL
C834
1/10GJ
33KC
R1290
CC4CL
C854
16PM22LBZA
C2956
PM4.7
LBZA
C3401
1/10GJ
10KC
R3423
1/10GJ
12KC
R2947
100
R3424
16PM22LBZA
C2954
PM4.7
LBZA
C3430
EM1
LBWA
C3418
1/10GJ
100KC
R3435
1/10GJ
1KC
R3425
16PM22LBZA
C2952
100
R3426
1/10GJ
150C
R651
EM
0.47
LBWA
C3611
CJ56
CL
C833
1/10GJ
15KC
R1855
K5DMB
10
4
11
5
12
6
13
7
14
8
15
9
16
17
18
19
20
1
2
3
D664
47
R2957
25EM
4.7
LBWA
C3435
KZ0.01
LZF
C829
16EM
470
LBWA
C3616
D897
1/10GJ
12KC
R2918
K1002
1
3
4
5
6
8
9
10
11
13
14
1/10GJ
100C
R3417
KZ0.01
LZF
C864
16EM
1000
LBWA
C3618
16EM
100
LBWA
C664
RK46
-304
D651
D3617
1/10GJ
12KC
R2959
CJ470CL
C1857
EM1
LBWA
C863
16EM
100
LBWA
C665
L651
75
R1269
KK
0.01
LZB
C106
D825
1/10GJ
2.2KC
R2949
EM47
LBWA
C105
KZ
0.01
LZF
C827
16EM
470
LBWA
C3416
10EM
1000
LBWA
C653
1/10GJ
12KC
R2917
K9FRB
1
5VAL
GND
KEY_IN
RC_IN
PWR_SW
6
GND
IC661P1
D827
KGNDKG2
1/10GJ
2.2KC
R2952
KZ
0.01
LZF
C103
IC662P1
D828
HJ1G
C672
J
R3459
1/10GJ
100C
R3415
D826
25KZ
0.1LZF
C663
KACK
1
1/10GJ
560C
R3436
25EM
4.7
LBWA
C3437
EM1LBWA
C866
KSTAT
1
1/10GJ
10KC
R840
KK0.01
LZB
C102
CJ
120
CL
C826
KZ0.01
LZF
C806
16EM
100
LBWA
C662
1K
R876
6.3EM
1000
LBWA
C101
L001
25KZ
0.1LZF
C666
J
R3457
1/10GJ
10KC
R3411
IC663P1
L801
AH
Q3410
1/10GJ
12KC
R2928
D898
KZ
0.01
LZF
C862
D663
D654
EM1
LBWA
C3628
1/10GJ
18KC
R1856
D822
L802
HJ1G
C659
16EM
1000
LBWA
C3415
L803
D655
D871
1/10GJ
1KC
R3416
47
R2950
6.3EM
470
LBWA
C822
25EM
1000
LBWA
C646
100
R897
1/10GJ
4.7KC
R836
D3401
1/10GJ
1KC
R3458
100
R102
D101
D835
D836
AH
Q3420
1/10GJ
6.8KC
R881
1/10GJ
6.8KC
R880
J
R822
9VTV_PF
21VTV-PF
31VTV-PF
TP318
TP317
NJM2534MP
IC1263
NJM2534MP
IC1262
MN1381-Q
IC802
1
2
3
M37151MA
IC801
SI-3090FA LF1113
IC661
1
2
3
4
5
SI-3050FA LF1113
IC662
1
2
3
4
5
SI-8050SS LF1113
IC651
1
4
5
PQ1CG3032FZ
IC653
1
2
3
4
5
PQ1CG3032FZ
IC652
1
2
3
4
5
NJM2534MP
IC1261
F1FAM0160
A101
18
19
20
21
10
SCL
11
SDA
12
AFT
13
AUDIO OUT
14
SIF OUT
15
BTL
16
NC
17
VIDEO OUT
1
NC
2
NC
3
+B
4
NC
5
NC
6
NC
7
BT
8
AGC
9
IF OUT
NJW1142MP
IC3401
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
16EM
470
LBWA
C3489
TJ5
AGND
6.5V
9V
5VTV
31VTV
9VTV
5VTV
9VTV
14VTV
14VTV
9V
14VTV
6.5V
5VTV
6.5V
15VA
9VTV
31VTV
6.5V
14VTV
5VAL
5VTV
5VAL
14VDM
15VA
31VTV
3.3VDM
1.8VDM
3.3VDM
1.8VDM
1/10GJ
2.2KC
R655
14VTV
5VTV
14VDM
31VTV
9VTV
5VAL
5VAL
9VTV
JWG2
TPV1
KJAG1
KJAG2
D3413
D3414
D3416
24LC08B/P
IC803
:CAT24WC08P
:M24C08-BN6
EM10
LBWA
C001
1.8K
R004
8.2K
R008
3.3K
R002
LA42072N-E
IC001
10
11
12
13
KK1000
C008
EM4.7
LBWA
C006
EM10
LBWA
C013
J
D015
3.3K
R001
KSP
1
4
25EM100
LBWA
C007
TJ4
KK1000
C009
1.8K
R003
7WJ1.5K
R007
25EM
1000
LBWA
C015
KG
1
1
ABL
2
2
BLK_FULL
3
OSD_B
4
OSD_G
5
OSD_R
6
GND
7
DM_UP
8
DM_YP
9
DM_VP
10
GND
11
DM_2H
12
DM_VS
13
GND
14
6.5V
15
14VTV
16
GND
17
AFC
18
H_RIVE
19
H_GND
20
EW_OUT
21
HOLD DOWN
22
GND
23
V_DRV–
24
24
V_DRV+
25
25
V_TIM
KF
1
1
2
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
24
25
25
5VTV
15VA
DJ2.2
R016
DJ2.2
R015
DJ2.2
R017
DJ2.2
R014
HJ0.1G
C010
HJ0.1G
C011
HJ0.1G
C018
HJ0.1G
C019
1/10GJ
10KC
R830
1/10GJ
6.8KC
R885
J
JP008
J
R010
1/10GZ0C
JP003
1/10GZ0C
JP004
1/10GZ0C
JP009
J
JP001
JWG5
JWG4
JWG3
JWG1
4.7K
R108
5V
5V
16PM10LBZA
C3410
16PM10
LBZA
C3421
L2804
Regulators
CPU
Reset
EEPROM
Tuner
(Analog)
MTS Decoder
To Front Board
(K1902)
To Front Board
(K1901)
To Speakers
To P/D Board
(K6A)
To P/D Board
(K4D)
To P/D Board
(K5B)
5VTV
★
★
★
1