Tuner - Sharp LC-32A28L Service Manual

13. TUNER

LG Tuner
TU102 TUNER
+5V_TUNER
1
NC
2
NC
3
GND
5V_T
4 1 2
+B
5 FB122 80 OHM
RF AGC
6 C213
GND
7 tuner_sda_T 0.1uF 50V C218
+
SDA
8 tuner_scl_T NC/100uF/16V
SCL
9 AS R238
MOPALL AS
10 FAT_IN+ NC/4.7K 1/10W
Digital IF(+)
11 FAT_IN-
Digital IF(-) IF_AGC_PAN
12
IF AGC
20 13
TH4 NC
19 14
TH3 NC
18 15
TH2 NC
17 16
NEARLY TUNER
TH1 NC
C656
27P 50V
C658
180P 50V
C657
FAT_IN- NC/47P 50V FAT_M
R650 100R 1/16W 5% L605 L606
SMD/0402 0.22uH 10% 0.22uH 10%
L609 L610 C662
33P 50V
NC/0.22uH 10% 0.33uH 10%
FAT_IN+ FAT_P
R651
100R 1/16W 5% C668 L611 L612
SMD/0402 180P 50V 0.22uH 10% 0.22uH 10%
C667
NC/47P 50V
C669
Ne ar tune r Ne ar CHIP 27P 50V
+5V
+5V_TUNER FROM Regulator
NEARLY TUNER +5V_TUNER
R678
0R05 4A 1/4W
4 5
NC NC
3 6 R679
VIN VO
2 7 0R05 4A 1/4W
EN FB
1 8 + C783
NC GND
C229 + C784 + C227 C230 + C228
0.1uF 50V 100uF/16V
U110
NC 100uF/16V NC/100uF16V NC/100uF16V
SMD SMD
SC4215HSETRT
CO-LAYOUT
CO-LAYOUT
Vo=0.5x(R1+R2)/R2
R682
4K7 1/10W 1%
6/10 Benson
2008-03-14
PANASONIC Tuner
GND
TU101
+12V
NC/TUNER
AV33
+5V
1
NC 5V_T
2
+B
3
RF-AGC Monitor
IF_AGCT
5
NC TUNER_CLK
6
BT Monitor TUNER_DATA
9 tuner_scl_T
SCL VIN_ATV
10 tuner_sda_T
SDA VIP_ATV
11
IF Monitor
IF_AGC_PAN
12
IF AGC AVDD33_DIG
FAT_IN+
13
IFD-out1 AVDD33_MPX
14 FAT_IN-
IFD-out2
R663
IF_AGC_PAN IF_AGC IF_AGCT
R239
68K 1/10W 5%
C219 10K 1/16W 5%
Ne ar
680pF 50V
Tune r
C672
47N 16V
Ne ar IC
C660 VIN_ATV
10N 50V
Ne ar Tune r
SMD/0402 C661
tuner_scl_T R236 TUNER_CLK
NC/100P 50V
tuner_sda_T 100R 1/10W 5% TUNER_DATA
SMD/0402 R237 100R 1/10W 5%
C664 C214 C215
VIP_ATV 33P 50V 33P 50V
C666
NC/100P 50V
10N 50V
SMD/0402 SMD/0402
AV33 AV33
NEAR IC NEAR IC
1 2 AVDD33_DIG 1 2 AVDD33_DEMOD1
FB127 80 OHM FB129 80 OHM
C233
100N 16V
AVSS33_DIG SMD/0402 AVSS33_DEMOD1
GND
+12V
AV33
+5V
IF_AGCT
TUNER_CLK
TUNER_DATA
VIN_ATV
VIP_ATV
AVDD33_DIG
AVDD33_DEMOD1
+5V_TUNER
R234 R235
4.7K 1/10W 4.7K 1/10W
R245
0R051/8W
R246
0R051/8W
R654
0R051/8W
R655
0R051/8W
R656
0R051/8W
R755
NC/0R051/8W
R756
NC/0R051/8W
C235
100N 16V
SMD/0402
81
LC-32A28L, LC-42A48L
By Jackie