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MODEL HT30746
Chassis No. 30746-00
C3427
TO DIGITAL
MODULE
ATSC_DECODER SCALAR
PFAIL
1
12
1
5
INPUT
UART_IN
ASSY,PWB,MAIN
AUDIO AMP
R821
R824
R825
PFAIL
Y2
Y3
CV
U2
U3
L
V2
V3
R
R
L
AV2
AV2
AV2
AV3
AV3
AV3
AV1
AV1
AV1
AV3
AV2
L
R
L
R
AV2
AV3
MONITOR
OUT
AVSW
RF
AV1
AV1-S
AV2
AV3
ATSC
H
L
L
L
L
H
H
–
–
H
DVI
–
–
–
–
H
H
H
L
H
H
–
1
2
3
MONITOR
OUT
AUDIO
SELECT
VIDEO
SELECT
C
Y
ABL
AFC
H_DRIVE
PCC
V_RAMP-
V_TIM
AFC
H_GND
HS
VS
VS
OSD_R
STAT_FACT
ACK_FACT
SDA_TV
SCL_TV
AV3_V
AV3_U
AV2_Y
BLK_FULL
OSD_G
OSD_B
H_DRIVE
V_TIM
V_RAMP–
HOLD_DOWN
HOLD_DOWN
PCC
AV2_U
AV2_V
ABL
SCL_TV
SCL_TV
SDA_TV
ACK_FACT
OSD_G
BLK_FULL
OSD_B
OSD_R
HS
RC_IN
KEY_IN
SDA_TV
DM_HS
DM_VS
AFC
SCL_TV
SDA_TV
SDA_TV
SCL_TV
ENA
DATA0
CLK
CLK
DATA0
ENA
AV2_V
AV3_U
L_IN
L_IN
DM_VP
DM_UP
DM_YP
DM_L
STAT_FACT
UART_OUT
SWD_R
VIDEO3_V
VIDEO3_Y
VIDEO3_U
VIDEO2_Y
VIDEO2_U
DM_R
DM_R
DM_L
VIDEO3_U
VIDEO3_V
VIDEO2_Y
VIDEO2_U
UART_CS
TV_V
UART_OUT
R_IN
R_IN
RC_IN
AMUTE
SWD_L
VIDEO2_V
VIDEO2_V
TIME_BASE
VIDEO3_Y
UART_SIN
DM_HS
DM_VS
WDT_OUT
AVSW3
AVSW2
DM_UP
DM_YP
DM_VP
AGND
AGND
KEY_IN
PWR_SW
PWR_SW
AV2_Y
AV3_Y
AV3_V
AV2_U
AV3_Y
AVSW1
PFAIL
PFAIL
PFAIL
16EM10
LBWA
C2904
UDZS10BG
D896
16EM10
LBWA
C2907
16EM
47LBWA
C1262
L1851
25KZ
0.1
LZF
C871
TC7SET08FP
IC804
25KZ
0.1LZF
C2905
25KZ
0.1LZF
C1852
16EM
100
LBWA
C2908
16EM
47LBWA
C1851
L101
CJ100CL
C1854
MC74HC04AFP
IC1851
KGNDKG1
K6PDD
PWR_SW
PFAIL
5VAL
GND
TUNING
+B
K6PDA
1
GND
GND
14VDM
14VDM
GND
GND
14VTV
14VTV
AGND
10
15VA
D858
CJ100CL
C1853
Q825
K6PDB
ABL
GND
AFC
H_GND
H_DRIVE
GND
PCC
HOLD_DOWN
GND
V_RAMP–
NORMAL_SW
UDZS
6.2BG
D857
D665
KK
2200
LZB
C844
25EM
1000
LBWA
C652
KSCL
1
25KZ
0.1LZF
C651
KSDA
1
UDZS3.0BG
D659
CJ180CL
C1855
16EM
100
LBWA
C671
KGND
1
16EM10
LBWA
C2940
16EM
100
LBWA
C661
L804
UDZS10BG
D899
25KZ
0.1LZF
C2950
D662
16EM10
LBWA
C2943
10EM
47
LBWA
C865
16EM10
LBWA
C2945
L661
UDZS
10BG
D810
16EM
100
LBWA
C2951
KZ
0.01
LZF
C867
25KZ
0.1LZF
C669
25KZ
0.1LZF
C1815
UDZS
10BG
D842
D661
CJ
22CL
C842
L837
CJ22CL
C832
UDZS
10BG
D841
CJ
22CL
C841
16EM10
LBWA
C2902
10EM
1000
LBWA
C658
CJ
22CL
C840
L654
UDZS
10BG
D840
25KZ
0.1LZF
C655
UDZS
10BG
D839
L811
10EM
1000
LBWA
C660
CJ22CL
C802
UDZS
10BG
D838
L652
UDZS
10BG
D837
HJ1G
C654
KK270
LZB
C837
UDZS
10BG
D816
25EM
1000
LBWA
C650
25KZ
0.1LZF
C648
L653
D664
25EM
4.7
LBWA
C3435
UDZS10BG
D897
KZ
0.01
LZF
C864
16EM
100
LBWA
C664
CJ470CL
C1857
EM1
LBWA
C863
16EM
100
LBWA
C665
L651
KZ
0.01
LZF
C106
UDZS
10BG
D825
EM47
LBWA
C105
KZ
0.01
LZF
C827
10EM
1000
LBWA
C653
UDZS
10BG
D827
KZ
0.01
LZF
C103
UDZS
10BG
D828
HJ1G
C672
D826
25KZ
0.1LZF
C663
KACK
1
KZ0.01
CBFJ
C866
KSTAT
1
KZ0.01
LZF
C102
1/10GZ0C
C826
16EM
100
LBWA
C662
6.3EM
1000
LBWA
C101
25KZ
0.1LZF
C666
L801
UDZS10BG
D898
KZ
0.01
LZF
C862
D663
D654
UDZS
10BG
D822
L802
HJ1G
C659
L803
16EM
100
LBWA
C668
UDZS
10BG
D871
6.3EM
470
LBWA
C822
25EM
1000
LBWA
C646
UDZS
12BG
D835
UDZS
12BG
D836
IC802
1
2
3
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
F1FAM0161
A101
18
GND
19
GND
20
GND
21
GND
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
1.8VDM
3.3VDM
KJAG1
24LC08B/P
IC803
:CAT24WC08L
33V
33V
K1001
1
3
4
7
8
10
13
14
12
11
K1002
3
5
6
8
9
11
14
13
1
4
10
15
12
KK0.047LZB
C3422
EM
0.47
LBWA
C3411
PM1LBZA
C3446
PM4.7LBZA
C3436
25KZ0.1
LZF
C3521
EM1LBWA
C3408
16EM
1000
LBWA
C3415
16EM
47
LBWA
C3412
KK
0.022
LZB
C3434
PM1LBZA
C3448
L001
KK
4700
LZB
C3433
PM4.7
LBZA
C3404
16EM
470
LBWA
C3414
10TK
10DR
C3426
EM1LBWA
10TK
3.3DR
C3423
PM4.7
LBZA
C3439
KK2700LZB
C3421
16EM
470
LBWA
C489
PM4.7LBZA
C3424
KK4700
LZB
C3431
KK5600LZB
C3407
KK0.012
LZB
C3406
EM0.1
LBWA
C3401
PM4.7
LBZA
C3416
25EM
4.7
LBWA
C3413
EM0.1
LBWA
C3432
PM4.7
LBZA
C3418
25EM
4.7
LBWA
C3417
16EM
100
C3501
6.3EM
1000
LBWA
C2323
6.3EM
1000
LBWA
C2324
CJ33CL
C816
C829
KZ0.01
LZF
25EM1000LBWA
C011
KK4700CBQ
C009
25EM
1000LBWA
C015
25EM
100
LBWA
C007
LA42052-E
IC001
1
2
3
4
10
5
11
6
12
7
8
9
13
KK4700CBQ
C008
EM4.7
LBWA
C006
KSP
1
4
25EM1000LBWA
C010
UDZS
10BG
D801
CJ
22CL
C801
CJ12CL
C821
X8219
CJ12CL
C818
CJ56 CL
C834
CJ56CL
C833
CJ56CL
C836
CJ56CL
C835
CC4CL
C856
CC4CL
C855
CC4CL
C854
UDZS
10BG
D809
UDZS
10BG
D805
1/10
GZ0C
J2302
J
J2301
JWG5
TP301
TP318
31VTV-PF
TP317
TJ4
9VTV_PF
21VTV-PF
NTKG26
TPV1
TJ5
AGND
9V
9V
5VTV
9VTV
9VTV
5V
5V
6.5V
6.5V
33V
5VAL
9VTV
5VTV
5VTV
5VAL
5VTV2
5VTV2
14VTV
14VTV
21VA
21VA
14VTV
14VDM
5VAL
9VTV
5VAL
AH
Q3458
AH
AH
Q3410
AH
Q3420
AH
Q3457
AE
Q001
AH
Q3508
9V
9VTV2
AJ
Q2942
AJ
Q2943
KZ0.01
LZF
KZ0.01
LZF
C815
KDL
1
6
KZ0.01LZF
C803
KZ0.01
LZF
C814
KJAG2
25EM
4.7
LBWA
C3437
AJ
Q2950
AJ
Q2902
AJ
Q2904
AJ
Q2906
16EM
470
LBWA
C3419
16EM
1000
LBWA
C3420
UDZS
12BG
D3416
PM1LBZA
C3450
PM1LBZA
C3451
TC7SH08FP
IC805
UDZS
10BG
D872
25KZ
0.1LZF
C872
21VA
16EM100
LBWA
C3471
25KZ
0.1LZF
C3470
EM2.2
LBWA
C1023
EM2.2
LBWA
C1024
EM2.2
LBWA
C1021
16EM10
LBWA
C1028
EM2.2
LBWA
C1022
CLKDMGND
1.8VTU
3.3VDM
3.3VDM
1.8VDM
6.5V
9VTV
33V
5VTV
KZ0.01LZF
C806
16EM100LBWA
C3481
25KZ0.1LZF
C3480
L3480
K9FRB 1
5VAL
GND
KEY_IN
RC_IN
PWR_SW
6
GND
D1652
D658
D3401
C830
AH
Q3459
AE
Q002
UDZS
10BG
D843
L820
J
JP012
K1051
1
2
3
4
5
6
25KZ
0.1
LZF
C3491
16EM10
LBWA
C3490
CD4052BNSRP
IC3403
:TC4052BFP
1
2
3
4
5
6
7
8
9
CD4052BNSRP
IC3402
:TC4052BFP
1
2
3
4
5
6
7
8
9
25KZ
0.1LZF
C1261
Z30B
0220G
SC101
1
2
D2301
5VTV
AH
Q852
9V
AH
Q853
Q854
KK
0.033
LZB
C823
EM2.2
LBWA
C868
K1052
1
A5V
2
GND
3
A9V
4
GND
5
6.5V
6
TU1.8V
7
GND
8
D1.8V
9
D1.8V
10
GND
11
D3.3V
12
D3.3V
13
GND
14
2H_GND
15
DM_U
16
DM_VS
17
DM_Y
18
DM_2HS
19
DM_V
20
2H_GND
21
VIDEO2_U
22
SWD_HS
23
VIDEO2_Y
24
SWD_VS
25
VIDEO2_V
26
COMP_GND
27
VIDEO3_U
28
COMP_GND
29
VIDEO3_Y
30
COMP_GND
31
VIDEO3_V
32
GND
33
PFAIL
34
TV_RESET
35
S_DETECT
36
H_LOCK
37
GPIO_CS
38
GPIO_NC
39
UART_OUT
40
UART_SIN
41
GND
42
TU33V
43
GND
44
VIDEO_
CV_Y
45
V_GND
46
VIDEO1_C
47
AGND
48
DM_R
49
ANGD
50
DM_L
51
52
KG
1
ABL
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
5.5V
15
14VTV
16
GND
17
AFC
18
H_DRIVE
19
H_GND
20
EW_OUT
21
HOLD_DOWN
22
GND
23
V_RAMP–
24
25
V_TIM
26
NC
27
9VTV2
28
GND
29
SDA_TV
30
SCL_TV
31
32
EM2.2
LBWA
C1027
EM2.2
LBWA
C1026
1/10GJ100C
R867
1/10GJ
10KC
R851
1/10
GJ47C
R2953
1/10GJ
100C
R1029
3.3K
R1852
100
R805
J
R100
75
R2956
R829
100
R807
1/10
GZ0C
R1037
1/10
GJ47C
R2916
1/10GJ
10KC
R863
J
R3482
1/10GJ
390C
R654
1/10GJ
12KC
1/10GJ
100KC
R3437
1/10GJ
12KC
R2947
100
R897
1/10
GJ47C
R2957
1.8K
R3461
1/10GJ10KC
R850
1/10GJ
2.2KC
R2930
1/10
GZ0C
R2617
100
R102
1/10GJ
470KC
R1021
1/10GJ
3.3KC
R3421
100
R883
1/10GJ
2.2KC
R2952
1/10GJ10KC
R815
J
R891
1/10
GZ0C
R2616
1/10GJ
220C
R3497
1/10GJ
12KC
R2946
4.7K
R849
1/10GJ
12KC
1/10GJ
75C
R3496
1/10GZ0C
R3470
47
R103
1/10GJ
5.6KC
R801
1/10GJ
2.2KC
R2920
3.3K
R001
1/10GF
68KC
R3411
1/10GJ4.7KC
R836
1/10GJ
1.5KC
R3505
J
R3475
1/10GJ
100C
R1027
1/10GZ0C
R2969
75
R1268
1/10GJ
1KC
R3460
1/10GJ
15KC
R1855
1/10 GZ0C
R3504
1/10GJ
100KC
R3406
100
R106
1/10GJ
10KC
R842
1/10GJ 47C
R2929
820
R108
C109
EM2.2LWA
1/10GJ4.7KC
R828
1/10
GJ47C
R2942
1/10GJ
100KC
R3435
1/10GJ680C
R650
75
R2960
100
R3427
100
R817
5WK0.47K
:5WK0.47V
R007
47
R3515
1/10
GJ47C
R2944
10K
R802
1/10GJ
4.7KC
R3462
1/10GJ820C
R634
100
R898
5.6K
R012
1/10GZ0C
R3477
1/10GJ4.7KC
R834
1/10GJ
47C
R2909
3.3K
R656
220
R3401
100
R812
1/10GJ4.7KC
R848
1/10GJ
2.2KC
R2949
1/10GJ
470KC
R1026
100
R838
1/10GJ
47KC
R853
1/10GJ
4.7KC
R835
1/10GJ
12KC
R2907
1/10GJ
10KC
R887
J
R3459
100
R882
1/10GJ
1KC
R665
J
R3472
1/10GJ
470KC
R1031
J
R657
1/10GJ
12KC
R2951
1/10
GZ0C
R3483
3.3K
R002
1/10GJ
100C
R1032
1/10GZ0C
R2968
1/10GJ10KC
R886
1/10GJ
470KC
R1023
560
R3434
1/10GJ
5.6KC
R856
100
R809
100
R101
1/10GJ
470KC
R1033
1/10GJ
1KC
R3458
1/10GJ1MC
R868
1/10GJ
560C
R659
560
R3436
1/10GJ
5.6KC
R855
1/10
GJ
R858
1/10
GJ75C
R2931
100
R814
1/10GJ
100C
R1022
1/10GJ
3.9KC
R3426
1/10GJ100C
R830
1.8K
R003
1/10GJ
100C
R1024
1/10GJ 2.2KC
R2910
75
R1262
100
R3424
1/10GJ
68KC
R1857
1/10
GJ47C
R2926
1/10GJ
1KC
R3416
1/10GJ
18KC
R1856
100
R816
J
R3480
1/10
GJ75C
R2945
1/10
GJ3KC
R3422
1/10GJ
10KC
R859
1/10GJ4.7KC
R857
100
R899
1/10GZ0C
R3484
2SJ0.82
R660
1/10
GJ75C
R2933
4.7K
R811
47KC
R852
1.8K
R004
100
R896
1/10GJ
1KC
R676
1/10GJ1KC
R3492
100
R845
1/10GJ
10KC
R837
1/10
GJ47C
R2950
1/10GJ
1.8KC
R653
1/10GJ
12KC
R2927
1/10GJ4.7KC
R846
J
R3471
1/10GJ
75C
R3494
1/10GJ
75C
R1036
1/10GJ
10KC
R860
1/10GJ
2.2KC
R655
220
R3402
1/10GJ
100C
R1034
1/10
GJ75C
R2932
1/10GJ
2.2KC
R2943
1/10GJ
47C
R2906
75
R1265
J
R3476
1/10
GJ47C
R2919
1/10GJ
12KC
R2959
1/10GJ
220C
R3495
1/10GJ
10KC
R862
18K
R1851
1/10
GJ75C
R2955
100
R827
75
R2958
1/10
GJ75C
R2954
R831
1/10GJ
4.7KC
R839
1/10GJ
12KC
R2917
1/10GJ
560C
R652
J
R3473
J
R3474
8.2K
R008
1/10 GJ47C
R2948
1/10
GJ1MC
R3407
1/10GJ
100C
R3415
1/10GJ10KC
R840
1/10GJ
5.6KC
R841
1/10GJ
1.8KC
R651
1/10GJ
12KC
R2941
J
R3485
1/10
GJ
10KC
R3490
J
R3456
330
R011
47
R3481
1/10
GJ
10KC
R3491
1/10GJ
100C
1/10GJ
100C
1/10GJ
100C
R806
1/10GJ
12KC
R2940
1/10GJ
470KC
R1028
1/10GJ
100C
R3417
1/10GJ
12KC
R2928
1/10GJ100C
1/10GJ100C
1/10GJ100C
1/10GJ
1KC
R3425
1/10GJ
10KC
R861
1/10GZ0C
R3493
1/10GJ
1.5KC
R833
1/10
GJ1KC
R808
1/10GJ
470KC
R869
1/10GJ
100KC
R870
1/10GJ
100KC
R871
1/10GJ
100KC
R872
16PM
10LBZA
C001
16PM
10LBZA
C013
K9FRA
1
L_IN
GND
R_IN
9V-1
GND
6
AMUTE
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
1/10GJ
180KC
R3463
1/10
GJ
180KC
R3464
180K
R3465
R3466
1/10GJ
180KC
R3467
180K
R3468
1/10GJ
180KC
R3452
R3469
1/10GJ
180KC
1/10GJ
180KC
1/10GJ
180KC
R3487
180K
R3486
1/10GJ
180KC
R3489
180K
R3488
J
R661
J
R662
J
D015
14VDM
14VTV
9VTV2
5VTV
5VTV
9V
9V
9V
9V
9VTV
9VTV
5VTV
#
#
#
1
1Vpp
#
#
ELECTROSTATICALLY SENSATIVE DEVICES
Many solid-state devices (especially Integrated Circuits) are
Electrostatically Sensitive, and, therefore, require special handling
techniques as described under “Servicing Electrostatically
Sensitive Devices,” on page
two in this service literature.
4. PARTS MARKED WITH ARE RELATED WITH X-RADIATION.
NOTES;
1. RESISTORS SPECIFIED WITH RESISTANCE VALUE ARE "1/6DJ".
2. RESISTORS SPECIFIED WITH TYPE OF RESISTOR, TOLERANCE
AND RESISTANCE VALUE ARE "1/4".
3. ALL CAPACITORS ARE 50WV RATING UNLESS OTHERWISE NOTED.
5. THICK LINES ARE 15WATTS SUPPLY LINE.
6. VIEW OF TR & FET & IC.
7. ISOLATION BORDER LINE.
COLD SIDE HOT SIDE
N
1
TOP VIEW
LETTER
SIDE
E CB
E
B C
C
E
B
1 2
3
IN CASE
OF TR
IN CASE
OF IC
IN CASE
OF FET
S
D
G
M (7ED00025) 1SS176, 1SS133, GMA01
8. LIST OF REPLACEABLE DIODES.
R (7DD00019) 1S2076, 1S2473, DS442, 1N4148
P (7DD00021) 1S2076A,1S2471, 1N4148
9. LIST OF REPLACEABLE TRANSISTORS.
AE (7QT00202)
AD (7T200183)
AB (7T200181)
2SC945A
2SC1815
2SA564A
2SA1015
R,Q,P
Q,P
Q,R
O,Y,GR
O,Y,GR
Y,GR
10. "J" : JUMPER WIRE.
"X" : PART NOT USED.
AC (7T200182)
R
Y,GR
2SC1740S
Q,R,S
Q,R,S
2SA933S
R
Q,R
AA (7DD00192) 1S2076, 1S2473, DS442, 1N4148, 1SS133
IMPORTANT:
SCHEMATIC PART LOCATION NUMBERS MAY NOT ALWAYS MATCH THE SCHEMATIC SYMBOLS.
THE SCHEMATIC SYMBOLS AND PART DESCRIPTIONS ARE CORRECT AND SHOULD BE USED.
THE PART DESCRIPTIONS WILL BE LISTED UNDER THE LOCATION NUMBER IN THE PARTS LIST.
HT30746 Schematic 2006 3/27/06 10:34 AM Page 2
