![background image](http://html.mh-extra.com/html/sharp/lc-26ad22u/lc-26ad22u_service-manual_373846053.webp)
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
IC2801
LA7995M-TLM
P.CON32V REG IC
1
10
11
12
13
14
2
3
4
5
6
7
8
9
L2802
33uHNLV25T
L2403
2.2uH
NLV25
L2401
2.2uH NLV25
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
:LES PIECES REPAREES PAR UN
ETANT
ATTENTION
:SINCE THESE PARTS MARKED BY
CAUTION
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARE
TU2801
ENG36E03KRF
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
7
8
9
D2801
EC11FS2-TE12L
C2808
0.47
50V
V-S
C2817
0.47
50V
V-S
C2819
0.47
50V
V-S
C2818
4.7
50V
V-S
C2820
4.7
50V
V-S
C2804
220
6.3V
V-S
C2803
220
6.3V
V-S
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
JG2455
CVBS_IN
JG2446
EXIT-MUTE-H
JG2447
DVI_HPD1
JG2449
DVI_A_SW_COMP-H
JG2456
DVI_A_SW_HDMI1-H
JG2441
VI_ATBP
JG2443
FAT_RFAGC
JG2442
AUX_AGC
JG2440
GND
JG2439
VI_ATBM
W820
W877
W821
B2802
FCM1608KF-102T02
B2803
FCM1608KF-102T02
B2407
FCM1608KF-601T02
B2801
FCM1608KF-102T02
B2804
FCM1608KF-102T02
B2409
FCM1608KF-601T02
B2408
FCM1608KF-151T06
R2802
100
R2801
100
R2464
4.7K
R2456
4.7K
R2515 120
R2465
100
R2459
100
R2455
390
R2463
100
R2462
100
R2808
100
R2457
1K
R2513
4.7K
R2461
4.7K
R2460
4.7K
R2458
4.7K
R2433
75
+-1%
R2434
75
+-1%
C2528
0.01 B
C2811 47P CH
C2505
220P
CH
C2812 47P CH
C2524
0.1
B
C2523
0.1 B
C2809
150P
CH
C2538
0.1 B
C2816
0.1
B
C2807
0.1
B
C2815
0.1
B
C2806
0.1
B
C2536
0.1 B
C2537
0.1 B
C2507
10
C
C2508
10
C
C2512
10 C
C2520
1 B
C2519
0.1 B
C2522
0.1
B
C2534
0.1
B
C2509
0.1 B
C2511
0.1 B
C2510
10 C
C2521
0.1
B
C2608
20P
CH
C2607
20P
CH
C2805
27P
CH
C2810
0.1 B
C2821 0.1 B
C2504
220P
CH
C2813 47P CH
C2533
0.1
B
C2801
0.01
B
C2517
220P
CH
C2516
220P
CH
C2532
0.01 B
AE19
AD19
AF20
AE20
AE21
AD21
AD20
AF21
C8
A7
B7
C7
C6
A5
A6
B6
A4
C5
B5
A16
A15
A9
B10
A11
C11
A13
B16
B14
C15
D10
A10
B9
B15
B13
C10
B11
C9
B8
A8
C14
C16
A14
B12
A12
IC2401
X242
ATSC/CLEAR CABLE ASIC IC
C13
C12
T_FAT_IFP
T_FAT_IFN
PC/HDMI_H
FAT_IFAGC
RXT0_RST
XRESET_HDMI
TUNER+30V
SD-H
AFT_1
AFT_2
AFT
PC/HDMI_H
AUDIO_MUTE-H
DTUNER_AUDIO_SW
RXT0_RST
DVD_A_SW_DVD-H
SD-H
AUDIO_MUTE-H
AFT_1
P.CON+5V
AFT_2
+3.3V
DVD_A_SW_DVD-H
TUNER+30V
TUNER_SDA
XRESET_HDMI
DVD_RESET
TUNER_SCL
DTUNER_AUDIO_SW
AFT
SIF
DVD_A_SW_DVD-H
TU_VIDEO
SW_C_OUT
PC/HDMI_H
DVD_RESET
T_FAT_IFP
TU_VIDEO
SIF
T_FAT_IFN
SW_Y/CVBS_OUT
FAT_IFAGC
P.CON+5V
+2.5V_IO
+3.3V
GND
H-20
H-19
NC
NC
NC
NC
NC
NC
(DIGITAL PCB)
FRONT END SCHEMATIC DIAGRAM
0
30.6
30.9
9.5
17.0
5.1
9.4
33.7
17.8
0
0
0
4.2
5.0
CP3
CP3
NC
NC
NC
COSC
CVCC
COUT
CREG
CP2
CP2
GND
CP1
CP1
GPIOC(0)
GPIOC(1)
3.3
3.3
GPIOC(15)
GPIOC(14)
GPIOC(13)
GPIOC(12)
GPIOC(10)
GPIOC(11)
GPIOC(9)
GPIOC(8)
GPIOC(7)
GPIOC(6)
GPIOC(5)
GPIOC(4)
GPIOC(3)
GPIOC(2)
3.4
AGC_SDM2
AGC_SDM1
AGC_SDMX
DNI
FAT_IFM
FAT_IFP
VI_IN7
VI_IN6
VI_IN5
VI_IN4
VI_IN3
VI_IN2
VI_IN1
VI_IN0
ADC1_AVSS_2
ADC1_AVSS_1
ADC1_AVDD_2
ADC1_AVDD_1
3.4
VI_AVDD33
0
0
ADC0_AVSS_2
ADC0_AVSS_1
0
0
VI_BYPASS1
VI_REFP1
VI_REFM1
VI_REFM0
VI_REFP0
VI_BYPASS0
ADC0_AVDD_2
ADC0_AVDD_1
(11/14 FRONT END)
VI_ATBP
VI_ATBM
PCBDH0
CEF276
FROM/TO MICON
FROM/TO SOUND
FROM/TO INTERFACE_HDMI IC
FROM/TO PC JACK
FROM/TO AV SWITCH/JACK
FROM/TO POWER3
2.5
2.5
1.2
2.5
2.5
1.2
0
0
0.8
0.8
0
0
3.3
3.3
3.3
0
0
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
0
0
0
1.0
0
0
0
1.0
NC
V_OUT
TU
NC
+30V
+5V
+5V
IF OUT2
IF OUT
IF AGC
IF OUT1
SIF
AFT
SCL
SDA
AGC
NC
NC
NC
NC
NC
NC
NC
0
0
0
0
5.0
0
3.3
3.3
2.5
1.0
1.0
5.0
0.8
0.8
3.4
0
21
20
1
2.5
2.5
2.5
2.5
30.0