Panasonic Demodulator Power(3.3V,1.2V); If Agc Selection - LG 42LE5500 Service Manual

Panasonic Demodulator Power(3.3V,1.2V)

+3.3V_NORMAL
ISDB_POWER
C2900
0.1uF

IF AGC SELECTION

IF_AGC
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
+3.3V_DE
+3.3V_DE
ISDB_POWER
L2900
BLM18PG121SN1D
ISDB_POWER
ISDB_POWER
C2902
C2901
0.1uF
16V
0.1uF
IF_AGC_ISDB
R2900
0
ISDB_DEMOD
R2901
0
INT_DEMOD
TU_IF_AGC_BCM
ISDB_POWER
IC2900
SC4215ISTRT
NC_1 GND
1 8 +1.2V_DE
ISDB_POWER
R2903
EN ADJ
2 7
5.1K
VIN VO
3 6
ISDB_POWER
C2903
ISDB_POWER
10uF ISDB_POWER
NC_2 NC_3
4 5
10V C2904 C2905
0.1uF
16V 22uF
16V
TP2901 IF_AGC_SEL
GP2_Saturn7M Ver. 1.0
Demodulator
29