Circuit Diagrams and PWB Layouts
10.
10-4-12
IR/KEY/Tuner
19530_534_130717.eps
130717
IR/KEY/Tuner
B12
B12
2013-06-11
1
715G6092
IR/KEY/Tuner
IF_AGC
IF_AGC_T
STB CONTORL
IFP
LED_R
TCLTuner with DVB-C/T
TUN_SDA
IFP
TUN_SCL
LC Filter for LOW IF
TUN_DIF-
IFN
C1506
10uF 16V
TUNER
TUNER_SCL
TUNER_SDA
C1507
100N16V
ZD204
NC/ML
V
G0402
1
2
U101
G1117-33T63Uf
VI
3
VO
2
GND
1
4
4
C1512
47pF 50V
R4515
100R 1%
FB151
220R
1
2
R4521
3.9K 1%
TU101
ST03CS-2-E
ANT
1
3.3V
2
GND
5
SCL
3
SDA
4
GPIO1
6
IF_N
7
IF_P
8
IF_AGC
9
TH1
10
TH2
11
TH3
12
TH4
13
R1507
0R05 1/16W
C4501
100N16V
C1509
100N16V
R4511
10K 1/16W 5%
BL_DIMMING
INVERTER_ON_OFF
R4503
100R 1/16W 5%
C1510
22UF
BL_ON/OFF
R4502
100R 1/16W 5%
R4519
10K 1/16W 5%
R1501
1K2 OHM
BRIGHT_ADJ
Backlight ON/OFF Control
BackLight_SW:
BackLight on: Low
BackLight off: High
Backlight Brightness Control
BL_DIM(PWM for Bright_Adj):
Max: 0V
Min: +3V3
SW1
NC/SW
1
2
3
4
R1502
22R 1/16W 5%
C1508
100N16V
R206
0R05 1/16W
R1503
1K2 OHM
R1504
22R 1/16W 5%
C1511
47pF 50V
BL_ON/OFF
+5V_SW
DV33
DV33SB
PWR_12V 4,5,16
+5V_SW 4,5,7,10,13
DV33 4,6,8,9,10,11,13,14,16
DV33SB 4,5,7,11,14,16
DV11 4,14
DV15 4,12
+5V_STB 4,5
KEY_ADC0 11
GND 4,5,6,7,8,9,10,11,12,13,14,16
INT_IR 11
LED_R 11
BL_ON/OFF 11
BL_DIMMING 13
BRIGHT_ADJ 4
TUNER_SDA 13
INVERTER_ON_OFF
4
TUNER_SCL 13
8
TUN_DIF- 8
IF_AGC 8
TUN_SDA
TUN_SCL
IFN
TUN3V3
GPIO
To power board
TUNER_SDA
TUNER_SCL
FB451
600R
1
2
TP404
TP410
C4504
22PF 50V
TP409
R4506
NC/1K 1/16W 5
%
R4520
10K 1/16W 5%
TP406
TP405
C4505
100N16V
R4508
100R 1/16W 5%
TP408
TP407
DV33SB
INT_IR
LED_R#:
Enable(Stand_By): High
Disable: Low
Key1
----><----|
LED_R
CN401
CONN
1
2
3
4
5
6
7
8
9
DV33
DV11
BRIGHT_ADJ
+5V_STB
PWR_12V
DV33SB
INVERTER_ON_OFF
+5V_SW
DV15
GND
KEY_ADC0
Tuner
TUN_DIF-
IF_AGC
POWER
----><----|
KEY_ADC0
KEY_UP_DN_DCSW
Key1
(KEY_MENU_L_R_SOURCE)
INT_IR
BL_DIMMING
ZD4501
MM3Z3V6B
1
2