BenQ TL650 Service Manual page 79

b. Audio board link with main board connector J20 pin define
pin Net
1 AGND
3 12V
5 HDMI_AOR
7 AUDIO_SW-SEL1 AUDIO SWITCH SEL1
9 AUDIO_VOL_ADJ AUDIO VOLUME CONTROL 10 AUDIO_VOL_ON
HDMI_
11
SOUND_SEL
13 AUDIO_SW12
15 SDA
c. Power board link with main board connector J25 pin define
pin Net
1 BRT_ADJ
3 PWRBD_ON
5 +5VIN
7 GND
9 +12VIN
11 +12VIN
13 GND
d. Keypad board link with main board connector J11 pin define
pin Net
1 KEY0
3 GND
5 LED2_G
7 KEY3
9 KEY5
11 GND
e. IR/Light sensor board link with main board connector J21 pin define
pin Net Function Description
1 D3V3 POWER 3.3V
3 D3V3 POWER 3.3V
5 IR IR SIGNAL
7 CPN_SDA LIGHT SENSRO I2C DATA
f. Back Light sensor board link with main board connector J14 pin define
pin Net Function Description
1 GND POWER GROUND
3 CPN_SCL LIGHT SENSRO I2C CLOCK
Function Description
AUDIO GROUND
AUDIO POWER 12V
HDMI AUDIO R-CH
HDMI AUDIO SEL
Audio external Speaker
I2C Data
Function Description
BACK LIGHT ADJUST
POWER OUTPUT ON
POWER 5V
POWER GROUND
POWER 12V
POWER 12V
POWER GROUND
Function Description
KEY FUNCTION 0
GROUND
GREEN COLOR LED ON
KEY FUNCTION 3
KEY FUNCTION 5
GROUND
- 79 -
pin Net
2 AGND
4 12V
6 HDMI_AOR
8 AUDIO_SW-SEL1 AUDIO SWITCH SEL2
12 AUDIO_SW1
14 SCL
15 RST
pin Net
2 LCD_BL_CTRL
4 +5VIN
6 +5VIN
8 PGND
10 +12VIN
12 GND
14 GND
pin Net
2 KEY1
4 LED2_R
6 KEY2
8 KEY4
10 KEY6
12 GND
pin Net Function Description
2 GND GROUND
4 GND GROUND
6 CPN_SCL LIGHT SENSRO I2C CLOCK
pin Net Function Description
2 D3V3 POWER 3.3V
4 CPN_SDA LIGHT SENSRO I2C DATA
Function Description
AUDIO GROUND
AUDIO POWER 12V
HDMI AUDIO L-CH
AUDIO VOLUME
MUTE
Audio Internal Speaker
I2C Clock
Reset
Function Description
BACK LIGHT ON/OFF
POWER 5V
POWER 5V
POWER GROUND
POWER 12V
POWER GROUND
POWER GROUND
Function Description
KEY FUNCTION 1
RED COLOR LED ON
KEY FUNCTION 2
KEY FUNCTION 4
KEY FUNCTION 6
GROUND