Tuner Schematic Diagram - Sharp LC-32AD5E-BK Service Manual

A B
8
7 FROM/TO 21PIN
TU_VIDEO_OUT
D_TUNER_CVBS
FROM/TO POWER3
P.CON+5V
GND
6
DTV+3.3V
P.CON+5V_DTV
P.CON+12V_DTV
FROM/TO REGULATOR
P.CON+3.3V
FROM/TO SCALER
DTV_LPM_CTL_H
DTV_AV_SW
SIF
DTV_RESET
DTV_RX
5 DTV_TX
D_TUNER_AUDIO_L
D_TUNER_AUDIO_R
DTV-H
LPM_INT
FROM/TO SUB MICON/RS-232C
RF_AGC
F_SCL
F_SDA
FROM/TO AV JACK/SWITCH
D_TUNER_V
D_TUNER_U
4
D_TUNER_Y
FROM/TO POWER_I/O
CP6001 (CP6401)
TKC-W30P-P1
1 AOUTR
2 AOUTL
3 LPM_INT/GND
4 AGND
5 CVBSOUT
6 TVTX
7 DTV-H
8 TVRX
9 POWER CTL
3
10 RESET
11 Y/Y S-VIDEO
12 GND
13 U/C S-VIDEO
14 GND
15 V
16 GND
17 +12V
18 D+5V
19 GND
20 AT+3.8V
21 SCLT
2
22 AT+3.8V
23 SPDIF NC
24 AT+3.8V
25 SDAT
26 GND
27 IF OUT1
28 GND
29 IF OUT2
30 IF AGC EXT
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
1
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
A B
H-11
C

TUNER SCHEMATIC DIAGRAM

R6011
100
R6014
FCM1608KF-601T02
100
NC
3.2 3.2 0
1 2 3 4
2Y1 2Y0 3Y1 3-COM
Vcc 2-COM 1-COM 1Y1
16 15 14 13
3.4 3.3 3.3 3.2
C6009
0.1 B
C6010
16V 100 YK_P
D_TUNER_SCL
D_TUNER_SDA
CAUTION
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D E
(MAIN PCB)
R6009 C6003_2
82K 25V
B6001
R6001
100
B6003
W4BRH3.5X6X1.0X2
DTV_AV_SW
2.0
R6018
0 2.9
10K
SW
Q6005
KRC102SRTK
NC
0 0 0
5 6 7 8
3Y0 INH GND GND
1Y0 A B C
12 11 10 9
3.4 4.8 4.8 4.8
3.3 5.0
LEVEL SHIFT
3.3
Q6001
3.3 5.0
KTK5132E
LEVEL SHIFT
3.3
Q6002
KTK5132E
ATTENTION
:SINCE THESE PARTS MARKED BY ARE :LES PIECES REPAREES PAR UN
CRITICAL FOR SAFETY,USE ONES DANGEREUSES AN POINT DE VUE SECURITE
DESCRIBED IN PARTS LIST ONLY N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D E
F G
10 KA_P
R6004
75
TU6002
TDTG-S156D
21
NC 1 B1
2 B2
5.0
3 B3(Vcc)
5.0
4 AGC
3.5
NC 5 NC
NC 6 NC(Vtu)
7 GND
0
8 AS
0
W844
9 SCL
5.0
W847
10 SDA
5.0
NC 11 IF
12 GND
NC 13 NC
14 2ndSIF
0.2
15 CVBS
5.9
NC 16 AUDIO
NC 17 NC
W879
18 IF AGC
2.2
W878
19 DIF1
0.1
W848
20 DIF2
0.1
23
ETANT CAUTION: DIGITAL TRANSISTOR
F G
H
8
7
6
5
22
4
3
2
PCBF40
CMF111
24
1
H
H-12