Haier LT32M1CA Service Manual page 53

32"LCD TV
CN450
0402/SMD
1 R450
2 R451
3 0402/SMD
NC/63383 3P 2.0mm
CEC_MCU ISP
CN451
CEC_PWR
1 RXD_CEC
2
3 TXD_CEC VGA_HIN
VGA_VIN
HDMI_CEC
NC/63383 3P 2.0mm
RS232_for debug
+3V3SB
NC/33R 1/16W 5% uP_SCL
NC/33R 1/16W 5% uP_SDA
RESET_CECMCU: from LOW to HIGH
(CEC MCU Reset)
CEC_PWR:
Low: Turn on power switch of DV33SB(MT538X uP VCC)
+3V3SB
X450
1 2
C450 NC/32.768KHz C451
RESET_CECMCU
R462 NC/33R 1/16W 5%
R464 NC/33R 1/16W 5%
R467 NC/33R 1/16W 5%
R469 NC/33R 1/16W 5%
R471 NC/33R 1/16W 5%
R457 NC/33R 1/16W 5%
0402/SMD
NEAR ZD701
AUDIO_PWR_UP:
AUDIO AMP PWR ON: High
AUDIO AMP PWR OFF: Low
R480 NC/10K 1/10W 5%
RESET_CECMCU
C457
NC/4.7UF 10V
U451
2 RESET_CECMCU
RESET
3
Vcc
1
GND
NC/LM809M3X-2.93
+3V3SB FB450
1 2
NC/220R/400mA
C453 + C456
NC/100N 16V NC/47uF 16V
0402/SMD SMD
0402/SMD
R452 NC/33R 1/16W 5%
U450
0402/SMD
1 20
32KOSCO VDD_RTC
2 18 R460 NC/33R 1/16W 5%
32KOSCI GPIOA0/AD0
4 17 R461 NC/33R 1/16W 5%
NRST GPIOA3/AD3/IR
5 16 R463 NC/33R 1/16W 5%
PWM1/GPIOC1 GPIOA4/SCL3/P1.0
6 15
RXD/IRQ3/GPIOB7 GPIOA5/SDA3/P1.1
7 14 R468 NC/33R 1/16W 5%
TXD/IRQ2/GPIOB6 GPIOA6/SCL1
8 13 R470 NC/33R 1/16W 5%
HIN/GPIOB5 GPIOA7/SDA1
9 12 R472 NC/33R 1/16W 5%
VIN/GPIOB4 GPIOB0/SCL2
10 11 R473 NC/33R 1/16W 5%
IRQ1/P1.3/GPIOB3 GPIOB1/SDA2
0402/SMD
NC/WT6702F_SS200
R487
AUDIO_PWR_UP NC/4K7 1/16W 5%
DV33SB
R486
NC/4K7 1/16W 5%
Q458
NC/MUN2211TIG
LED_G#
LED_G#:
LED_G
Enable: Low
Disable(Stand_By): High
53
Haier LT32M1CA&LT32M1C
6,9 KEY _UP_DN_DCSW
1,2,9 +5V_STB
1,2 +3V3SB
6,15 HDMI_CEC
1 CEC_PWR
4,6 MAIN_SCL
4,6 MAIN_SDA
9 LED_G#
9 RC6
9 LED_R#
6,9 LED_G
1,5,6,9,15,16,17 DV33SB
1,2,3,4,5,6,7,8,9,10,12,13,14,15,16,17 GND
9,13 U0TX
R456
NC/100K 1/16W 5%
9,13 U0RX
0402/SMD
LED_R#:
13 VGA_HIN
Enable(Stand_By): Low
13 VGA_VIN
Disable: High
6 CEC_INT
+3V3SB
16 AUDIO_PWR_UP
0402/SMD
NC/4K7 1/16W 5%
KEY _UP_DN_DCSW
RC6_CEC
LED_R#_DRIVE
uP_SCL
uP_SDA
INT_CEC
C452
Q456
NC/1N 50V
NC/MUN2211TIG
+3V3SB
+3V3SB
NC/2N7002
Q455
NC/MUN2211TIG
NC/2N7002
R485
Q459
NC/BC847C
NC/4K7 1/16W 5% NC/2N7002
The item of this page start from "450"
T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL
絬 隔 瓜 絪 腹
T2913-1-HISENSE32-080229 TPV MODEL
Key Component
12. CEC MCU PCB NAME
Monday , April 14, 2008 Sheet
Date
KEY _UP_DN_DCSW
+5V_STB
+3V3SB
HDMI_CEC
CEC_PWR
MAIN_SCL
MAIN_SDA
LED_G#
RC6
LED_R#
LED_G
DV33SB
GND
U0TX
U0RX
VGA_HIN
VGA_VIN
CEC_INT
AUDIO_PWR_UP
+3V3SB +3V3SB +5V_STB
R453 R454
NC/10K 1/10W
Q450
NC/2N7002 RC6
R478 NC/10K 1/16W 5%
R466
+3V3SB
NC/0R05 1/16W
0402/SMD 0402/SMD
LED_R#
DV33SB
Q451
MAIN_SCL
DV33SB
Q452
MAIN_SDA
DV33SB
Q457
CEC_INT
Size Custom
Rev 1
715T2913-1
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