Sharp LC-26DV24U A Service Manual page 19

A B
8
7
6
C5801
6.3V
FROM REGULATOR2
TUNER+30V
5
D5.0V
D3.3V
GND
4
3
LEVEL SHIFT
2
Q5802
FROM/TO SCALER VIDEO/AUDIO
2SK3019_TL
3.3 5.0
I2C_DATA
3.3
3.3 5.0
I2C_CLK
LEVEL SHIFT
3.3 Q5801
2SK3019_TL
TO AV SWITCH2
1
TU_AUDIO_R
TU_AUDIO_L
A B
H-17
C
TU5801 ENG36E19KF
C5805
0.1 B
50V(1608)
220 V-S B5802
FCM1608KF-102T02
IF_AGC
TU_I2C_CLK
TU_I2C_DATA
C5819 6.3V 220 V-S
B5804
BTSC DEMODULATOR IC
FCM1608KF-151T06
IC5801 AN5832SA-E1V
C5823 0.33 B 3.5
PILOT DET
R5813
C5818 0.22 B 3.5
PLL L+R REF
C5824 0.1 B 3.3K 0
VCC SAP DET
NC NC NOISE DET
C5817
SIF_OUT 2.2
INPUT SIF/BB
0.001 B C5825 4.7 B 3.3
SIF REF MUTE
C5826 2.2 B 2.2
STEREO REF FOMO
R5810 100 5.0
SDA/SAPID MODE
0
GND AGC SW
R5811 180K
PE
NC IIC/PARA
R5812 100 5.0
SCL/STID SPE FIL
C5827 2.2 B 1.7
AGC DET SPE DEL
2.2
ROUT SPE TIME
2.2
LOUT WB DET
NC NC WB TIME
C5830 2.2 B
1.3
L-R RBF
C
D E
TUNER SCHEMATIC DIAGRAM
(DIGITAL PCB)
TU_AFT
NC
NC
2.2 C5833 2.2 B
2.8 C5834 0.033 B
2.9 C5835 0.1 B
NC
NC
NC
NC
NC
5.0
2.4 C5837 0.022 B
2.4 C5838 0.1 B
0.5 C5839 3.3 B
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
2.9 C5840 0.33 B
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
0.5 C5841 10
NC NC
CAUTION
:SINCE THESE PARTS MARKED BY
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
D E
F
8
W878
R5819 C5844
100 0.01 B
R5820 C5845
100 0.01 B
NEAR IC2401 R5823
1K
R5822
47
R5821
47
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.
ATTENTION
ARE :LES PIECES REPAREES PAR UN ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
F
G H
8
TO SCALER VIDEO/AUDIO
TU_CVBS
7
6
SCALER IC IC2801 R8J66954BG
1.6
AA1 ADIN1
5
1.6
Y1 ADIN0
VSB_ADC
1.8
W2 ADVREF0
1.6
Y2 ADVREF1
1.6
AA2 ADVREF2
3.3
AA7 IF_AGC
4
TUNER_IF
2.8
AA5 MCUADIN0
MCU_ADC
3.3
Y9 SICL0
IIC0
3.3
AA9
SIDA0
3
2
PCBDH0
CEH424
1
G H
H-18