Norcent LT3225 Service Manual page 52

32'' LCD TV
Signal Beetle GPIO #
GIRQ0_VOL+
GIRQ1_VOL-
GIRQ2_CH+
GIRQ3_CH-
GPIO0 0
GPIO1 1
GPIO2 2
GPIO3 3
AUD_SEL_A 33
AUD_SEL_B 34
AUD_SEL_C 31
FRONT-AV-SEL 30
RGB_YPBPR_SEL 37
YPbPr_SEL 42
AUD_DOWN 43
SEL_FRAME-RATE 44
MENU 26
YC_select1 36
TV_VIDEO 35
PWR_SW 56
PANEL-ON1 55
CLAMP
COAST
OREN_RST XC_BUFEN_N
LIGHT-ON-OUT XC_CD1_N
EAR_DET XC_CD2_N
HDMI_5V_DET XC_VCC5EN_N
SRS_SW XC_RESET
BACKLIGHT-CNTRL-OUT HSYNC
AUDIO_POWER 45
NOTE: Red word are different ZR660 reference design
GPOIs Table
GPIO Pin Table
Function
KEYPAD "VOL contol"
KEYPAD "VOL contol"
KEYPAD "CHANNEL CONTROL"
KEYPAD "CHANNEL CONTROL"
GPIO For boot flash selection
GPIO For boot flash selection
GPIO For boot flash selection
GPIO For boot flash selection
Audio In select
Audio In select
Audio In select
FRONT CVBS-Y/C Video Input Recognition
YPbPr/VGA select
YPbPr/VGA select
Auido Mute
Panel timming sel
KEYPAD "MENU",MENU ON-OFF
Back CVBS-Y/C Video Input Recognition
KEYPAD "SOURCE", INPUT SELECT
Turn on PDP power supply
Panel power control
OREN reset control pin
Inverter control
Ear phone detect
HDMI 5V detect
SRS control pin
Backlight control
Audio power control
Setting
Refer to Title sheet
Refer to Title sheet
Refer to sheet 8
Side AV detect pin: '1' AV, '0' Svideo
Refer to sheet 11
Mute control: '1' Mute
'0' 60Hz,'1' 50Hz
1=Composite, 0 = Y/C
'1' on, '0' off
OREN reset control: '0' reset
'1' on; '0' off
Ear phone plug detect pin: '1' Ear phone plug in
'1' HDMI 5V exist
'1' SRS ON, '0' SRS OFF
PWM OUTPUT 0~3.3V
'1' on, '0' off
Title
Size
Date:
52
Norcent LT3225
Page 19 - GPIO Table Page
Document Number
B
715T1961-
Wednesday, May 17, 2006 Sheet 19 of
Rev
D
19