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11. Schematic Diagrams

Note
11-1 S. M. P. S (S. M. P. S PCB) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11-2 For schematic Diagram
- Resistors are in ohms, 1/8W unless otherwise noted.
11-2 Tuner, Demodulator1(Main PCB) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11-3
Special note :
Most semiconductor devices are electrostatically sensitive and therefore require the special handling techniques described under the
11-3 Tuner, Demodulator2 (Main PCB) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11-4 "electrostatically sensitive (ES) devices" section of this service manual.

11-4 DDR Interface (Main PCB) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11-5 Note :
Do not use the part number shown on this drawing for ordering. The correct part number is shown in the parts list (may be slightly
11-5 Flash Interface, PIO (Main PCB)- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11-6 different or amended since this drawing was prepared).

11-6 TS Interface, USB2.0, JATG (Main PCB) - - - - - - - - - - - - - - - - - - - - - - - - - - 11-7 Important safety notices :
Components identified with the mark have the special characteristics for safety. When replacing any of these components.
11-7 ATA Interface (Main PCB) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11-8 Use only the same type.


11-8 A/V S/W Switch (Main PCB) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11-9

11-9 A/V Output(SCART) (Main PCB) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11-10

11-10 STI5100 VCC& GND (Main PCB) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11-11

11-11 S-CARD,POWER (Main PCB) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11-12

11-12 MODEM (Main PCB) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11-13

11-13 RESET, RS232, EEPROM (Main PCB) - - - - - - - - - - - - - - - - - - - - - - - - - - - 11-14

11-14 Front (Front PCB) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11-15




Samsung Electronics This Document can not be used without Samsung's authorisation 11-1
Schematic Diagrams


11-1 S. M. P. S (S. M. P. S PCB)




11-2 This Document can not be used without Samsung's authorization Samsung Electronics
Schematic Diagrams


11-2 Tuner, Demodulator1(Main PCB)
Sheet 1 of 12

TM102
SANYO_U1000ES
1V8A1
R121
C114 10
104 5V

R120 10K




TU+32V
RF AGC




IF AGC
B2+5V




5V(IF)
GND
SDA
5VTA1 L115
+5V




SCL
NC



NC




AS




IF

IF
1V8A1 TGND TGND 120ohm_2. 5A(2012)
1

2

3

4

5

6

7

8

9

10

11

12

13

14
IP1

R123 Q105
OE TS_CLK
1V8D1
4.7K C162 R136 C160 R2101
T1_AGC




T1_SDA




10pF 510K 10pF R135 0 Q104
T1_SCL




(4) ANT5V_ON/OFF
TGND R103 R104 R119 10K R1104
180 10K R139
T1_IFAGC AGC1 X101 10K

30V_VT1 5VTA1 C108 C109 AGND AGND
104 104 27 MHz TGND MOD101
R118 10K R128 75 C102 47uF/16V R122 0 7




+
(7) RF_V V IN
TGND I2C_CLK0 R129 100 6
R101 SCL
5 MOD B+
100K TGND TGND I2C_SDA0 R124 100 4
Q101 R117 10K R126 1K SDA
3




+
(7) RF_A A IN
KTC3875 2
5VTA1 IP1 C130 BOOSTER B+
1 5V_ANT
Q102 1V8A1 47uF/16V
3V3TD1
KTA1504 R125 R127 C157 C159 RMUS74055DA(S)
R102 1V8A1 1K 75 104 104
56K + C129
TGND TGND TGND TGND TGND




64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
C104 100uF/10V
104