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A
B
8
7
VI_ATBM
JG2439
GND
JG2440
VI_ATBP
JG2441
6
FROM/TO SOUND AMP
DVD_A_SW_DVD-H
AUDIO_MUTE-H
DTUNER_AUDIO_SW
5
FROM/TO MICON
SD-H
AFT_1
AFT_2
DVD_RESET
AFT
FROM/TO AV SWITCH/JACK
TU_VIDEO
4
SIF
DVD_A_SW_DVD-H
+3.3V
CVBS_IN
JG2455
3
21
SW_C_OUT
20
SW_Y/CVBS_OUT
2
FROM/TO POWER1
P.CON+5V
+2.5V_IO
+3.3V
GND
1
CAUTION
:SINCE THESE PARTS MARKED BY
ARE
ATTENTION
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
A
B
H-7
C
FRONT END SCHEMATIC DIAGRAM
ATSC/CLEAR CABLE ASIC
IC2401
X242
(11/14 FRONT END)
0
0.8
C13
VI_ATBM
FAT_IFP
A15
0
0.9
C12
VI_ATBP
FAT_IFM
A16
C2509
0.1 B
C2523
0.1 B
2.7
A12
VI_REFM0
AUX_AGC
2.6
0
B12
VI_REFP0
AGC_SDMX
B5
C2510
10 C
1.2
3.4
A14
VI_BYPASS0
AGC_SDM1
C5
FAT_RFAGC
0
AGC_SDM2
A4
2.5
C14
ADC0_AVDD_1
B2409
2.5
C16
ADC0_AVDD_2
FCM1608KF-601T02
0
B13
ADC0_AVSS_1
0
B15
ADC0_AVSS_2
1.5
3.3
C2511
0.1 B
C2524
0.1 B
A8
VI_REFM1
GPIOC(0)
A5
0.6
3.3
B8
VI_REFP1
GPIOC(1)
C6
1.2
3.3
C2512
10 C
T_PDET_REF_OUT
C9
VI_BYPASS1
GPIOC(2)
B6
3.3
GPIOC(3)
A6
2.5
3.3
B11
ADC1_AVDD_1
GPIOC(4)
C7
B2407
2.5
3.3
EXIT-MUTE-H
C10
ADC1_AVDD_2
GPIOC(5)
B7
FCM1608KF-601T02
3.3
GPIOC(6)
A7
3.3
GPIOC(7)
C8
0
3.0
A10
ADC1_AVSS_1
GPIOC(8)
AD21
0
3.0
B9
ADC1_AVSS_2
GPIOC(9)
AE21
C2519
3.0
GPIOC(10)
AF21
B2408
0.1 B
3.4
3.3
D10
VI_AVDD33
GPIOC(11)
AD20
FCM1608KF-151T06
C2520
3.3
GPIOC(12)
AE20
1 B
3.3
GPIOC(13)
AF20
3.3
GPIOC(14)
AD19
0
3.3
NC
B16
VI_IN0
GPIOC(15)
AE19
0
NC
C15
VI_IN1
0
NC
B14
VI_IN2
L2403
C2528
1.6
A13
VI_IN3
2.2uHNLV25
0.01 B
1.0
C11
VI_IN4
0.9
A11
VI_IN5
NC
0
NC
B10
VI_IN6
L2401
C2532
1.8
A9
VI_IN7
2.2uHNLV25
0.01 B
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
:LES PIECES REPAREES PAR UN
ETANT
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
C
D
E
(DIGITAL PCB)
C2536
R2462
T_FAT_IFP
0.1 B
100
C2537
R2463
T_FAT_IFN
0.1 B
100
DNI
JG2442
R2457
1K
FAT_IFAGC
JG2443
C2538
0.1 B
R2456
4.7K
R2464
4.7K
R2465
100
R2459
100
JG2444
GPIOC_3
JG2468
AUDIO_MUTE-H
JG2446
DVI_HPD1
JG2447
DVI_HPD0
JG2448
SD-H
AFT_1
AFT_2
DVD_A_SW_DVD-H
DVI_A_SW_COMP-H
JG2449
DVI_A_SW_HDMI1-H
JG2456
R2515
100
DVD_RESET
DTUNER_AUDIO_SW
T_FAT_IFP
T_FAT_IFN
FAT_IFAGC
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
D
E
F
G
5.0
4.2
0
0
0
17.8
14
13
12
11
10
CVCC COSC
NC
NC
NC
CP1
CP1
GND
CP2
CP2
1
2
3
4
5
9.4
5.1
0
17.0
9.5
30.9
C2808
C2817
50V
0.47
V-S
50V
0.47
V-S
TUNER+30V
0
22
NC
1
NC
0
NC
2
NC
NC
NC
NC
NC
1.8
NC
7
AGC
3.0
NC
8
TU
B2801
B2802
5.0
P.CON+5V
9
+5V
FCM1608KF-102T02
FCM1608KF-102T02
0
0.1 B
C2810
NC
10
NC
W821
30.0
TUNER+30V
11
+30V
C2811
R2801
3.3
TUNER_SDA
47P CH
12
SDA
100
C2812
R2802
3.3
TUNER_SCL
47P CH
13
SCL
100
C2813
W820
2.5
AFT
47P CH
14
AFT
R2810
0
SIF
15
SIF
100
L280210uHNLV25
R2811
1
1.0
TU_VIDEO
16
V_OUT
B2803
100
C2802
B2804
FCM1608KF-102T02
5.0
17
+5V
FCM1608KF-102T02
100P CH
0
18
IF OUT1
0
19
IF OUT2
3.0
20
IF AGC
0
NC
21
IF OUT
24
PCBDH0
CEF251
F
G
H
8
7
C2819
50V
0.47
V-S
33.7
9
8
CP3
CP3
6
CREG COUT
6
7
30.6
5
TU2801
ENG36E03KF
23
4
3
25
2
1
H
H-8
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