长虹LT32620A原理图
LS23机芯原理图
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深圳市高新区南区科技南十路国际技术创新研究院C 座4楼
TEL:0755-******** FAX:0755-********
1.0
SYS-FLOW
1
12
Tuesday, November 20, 2007
Video/Audio in:
ATSC TV---Parallel TS Port NTSC TV---CVBS0 Video in---CVBS1
SVideo in---Y0&C0 with audio in---LINE IN2 YPbPr---ADC0 with audio in---LINE IN3 VGA---ADC1 with audio in---LINE IN1
GPIO:
EEP_WEN--- GPIO99, PIN165 ( AT24C512 EEPROM Write Protect, High---Write Disable)SYS-RESET---GPIO24, PIN83 (MSD809 reset control, Low---Reset)AMP-MUTE --- GPIO25, PIN84 (Audio AMP mute. High---Mute)LED---GPIO83 , PIN104 (Power On LED. High---ON)PWR-ON/OFF---PWM2, PIN124 (External Power ON. Low-ON)ON_PANEL---GPIO98, PIN166 (Panel power on. Low---ON)ON_PBACK---GPIO97, PIN167 (Panel Back light on. Low---ON)
DVDIR_EN---GPIO84, PIN103 (IR bypass control for Comb DVD. High---Bypass)
DVDIR_STB---PWM1, PIN123 (Set Comb DVD Standby. Low---Standby)
USB_DETEC ---GPIO14, PIN196 (USB Over Current detect. Low---Over Current)
ON_USB ---GPIO26, PIN85 (Power on USB supply. High---5V USB ON)
FLASH_WP ＃ ---SAR3, PIN121(Flash write protect. High---Protect)
ADJ-PWM ---PWM3, PIN125(Panel back light control.)
T_AFT--- SAR2, PIN120 (NTSC Demodulator AFT feed back)
HDMI-CEC ---GPIO15, PIN134(HDIM-CEC control)
HDMI_S1 ---GPIO20, PIN29(HDMI Switch control)
HDMI_S2 ---GPIO21, PIN30(HDMI Switch control)
HDMI_S3 ---GPIO22, PIN31(HDMI Switch control)
HDMI_PC0 ---GPIO23, PIN32(HDMI Switch control)
HDMI_PC1 ---GPIO28, PIN87(HDMI Switch control)30C
1.增加U23 LDO
2.HDMI CEC 电路改进
3.HDMI 的DDC 上拉电阻改成10K
4.HDMI 座子的PIN18加一个下地的3.6K 电阻
2007-10-11
2007-11-20
changhong modified: 1,Changed the AV ports 30C_ch 2007-08-02DATE
Version
Modify Content
Initial Version
30B
Title
POWER INPUT
Title
深圳市高新区南区科技南十路国际技术创新研究院
// Add PI5V330Q and HEF4052----------->11.13
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深圳市高新区南区科技南十路国际技术创新研究院C 座4楼
TEL:0755-******** FAX:0755-********
1.0
HDTV
4
12
Friday , January 04, 2008
YPbPr INPUT
Title SAMSUNG TUNER LOW PASS FILTER
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深圳市高新区南区科技南十路国际技术创新研究院C 座4楼
TEL:0755-******** FAX:0755-********
1.0
DEMODULATOR
7
12
Saturday, Nov ember 17, 2007
R261
Title
深圳市高新区南区科技南十路国际技术创新研究院
+3.3V FOR MST
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