Samsung TX20C53X/XET Service Manual page 105

Schematic Diagrams
11-19 Voltages (TV)
Q801 KA3S0680RF
:
Units : Volts
PIN NO PIN NAME ST AND-BY POWER ON
1 DAR.IN 299 290
2 GND - -
3 VCC 19.5 20.3
4 VFB 0.2 1.3
5 SYNC 0.8 6.7
IC801 PC123Y
:
Units : Volts
PIN NO ST AND-BY POWER
1 16.5 16.7
2 15.4 15.7
3 GND GND
4 0.2 1.3
IC501 TDA6107Q Units : Volts
:
PIN NO PIN NAME VOL TAGE S(V )
1 B-IN 2.4
2 R-IN 2.4
3 G-IN 2.5
4 GND -
5 lom 5.4
6 Vdd 166
7 G-OUT 90~115
8 R-OUT 93~118
9 B-OUT 97~119
IC301 TDA8356
:
Units : Volts
PIN NO PIN NAME VOL T AGES(V )
1 VD-INPUT 2.2
2 VD+INPUT 2.2
3 VCC 16.9
4 OUTPUT 8.2
5 GND -
6 VFB 41.5
7 OUT 8.5
8 VO -
9 VI 8.2
11-14
IC902 24C08,24C04,24C16
:
Units : Volts
PIN NO PIN NAME VOL T AGES(V )
1~4 GND -
5 SDA 4.8
6 SCL 4.8
7 GND -
8 VDD 5.2
IC601 TDA7267A
:
Units : Volts
PIN NO PIN NAME VOL T AGES(V )
1 VS 1.6
2 OUT 8.5
3 SVR 8.7
4 IN 0.8
5 N.C -
6 S-GND -
7~8 N.C -
9~16 P-GND -
IC901 SAA5554PS-OTP
:
PIN NO PIN NAME VOL T AGES(V) PIN NO
1 - 37
S-L CTL
2 38
BUS-STOP 5.2
3 D-coil - 39
4 - 40
ST BY-REC
5 - 41
PB-L
6 42
AV-L 0.67
7 43
VT-L 0.67
8 44
HOLD 2.48
9 1T/AFT 3.2 45
10 2.7 46
2T/AGC
11 47
2T/AFT 3.2
12 SCART-ID - 48
13 - 49
GND
14 50
BG/I -
15 D/K - 51
16 5.2 52
1TS-L H
17 53
S-L H 4.9
18 FRA-H 3.7 54
19 LNA 4.4 55
20 TV PWR 3.2 56
21 PB MUTE - 57
22 VSSA - 58
23 0.2 59
CVBS0
24 CVBS1 1.3 60
25 BLACK 0.48 61~62
26 1.3 63~64
IREF
Units : Volts
PIN NAME VOL T AGES(V)
-
N.C
-
GND
GND -
2.8
S-MUTE
3.2
VDD
OSD B -
OSD G -
-
OSD R
-
F/B
H-SYNC 0.79
-
V-SYNC
-
VSSP
3.2
VDD
-
GND
Xtal 1.6
Extal 1.6
-
RESET
3.2
VDD
5.2
REMOCON
TV CLK 5.1
V-SYNC INTER -
-
TV SI
1.0
TV SO
-
TV CS
SCL
2.3
2.2
SDA
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