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TV Service Mode Adjustments - CTV832U Parameters","","Service menu操作说明，解释在RC与电视同时按下特定按键进入TV服务模式、退出方式及初始菜单项IF选择流程。文档说明各菜单项如何用节目上下键选择、用音量上下键修改，数值在IF、调谐带选择与BITS/Option项之间的十进制与十六进制显示规则，以及退出后参数写入非易失存储器的机制。重点给出INIT CTV832U初始化NVM、OSD显示BUSY与READY，以及大量图像宽高比(16:9/4:3)与几何/白平衡/延迟/扫描等寄存器参数的含义与默认值清单。",{"@graph":69,"@context":126},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/service-menu-tv-service-mode-adjustments-ctv832u-parameters/560833/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/service-menu-tv-service-mode-adjustments-ctv832u-parameters/560833.png","ImageObject",300,407,{"name":92,"@type":93},"Nguyễn Văn Học","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-22","2026-10-12",true,{"@type":102,"interactionType":103,"userInteractionCount":81},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118,122],{"name":109,"@type":110,"acceptedAnswer":111},"如何进入电视的service mode并退出service menu？","Question",{"text":112,"@type":113},"当电视处于TV-模式时，需同时按RC上的\u003CSUB-PAGE>键与TV上的VOLUME-DOWN键进入service menu；退出时按\u003CTV>键离开。进入后先显示IF作为首个菜单项。","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"service menu中参数值如何选择与修改？",{"text":117,"@type":113},"用\u003CPROGRAM-UP>与\u003CPROGRAM-DOWN>选择菜单项；用\u003CVOLUME-UP>与\u003CVOLUME-DOWN>修改当前项的值。除调谐带选择、BITS与option项外，其余值以十进制显示；这些特定项则以十六进制显示。",{"name":119,"@type":110,"acceptedAnswer":120},"INIT CTV832U在NVM初始化中做了什么？",{"text":121,"@type":113},"INIT CTV832U用于初始化NVM：清除所有程序名称与调谐信息，并写入默认的服务校准值与预设值。初始化过程中OSD显示“BUSY”，完成后屏幕显示“READY”。",{"name":123,"@type":110,"acceptedAnswer":124},"16:9与4:3的寄存器参数如何对应调整？",{"text":125,"@type":113},"文档说明CTV832U对寄存器使用两套参数：16:9使用HP、HB、EW、PW、UCP、LCP等寄存器集合；4:3使用带扩展'4:3'（如HP4:3、HB4:3等）的第二套集合。每套参数需在对应画面比例（16:9或4:3）条件下调整，且EW、PW、UCP、LCP、TC、HP4:3等项仅在第4个option byte中16:9选项设置后出现在服务菜单中。","https://schema.org",{"og:url":83,"og:type":128,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":130,"canonical":83},"index,follow",{"doc_id":132,"site_id":62},560833,1792370346,{"code":4,"msg":5,"data":135},{"doc_id":132,"user_id":136,"nickname":92,"user_avatar":137,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":138,"file_id":139,"file_url":140,"file_type":141,"file_size":142,"view_count":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":81,"language":143,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":144,"faqs":145,"seo_title":146,"seo_description":67,"update_tm":147,"read_time":39},1374402739827,"https://ap-avatar.wpscdn.com/avatar/14000c97e7351f1a627?x-image-process=image/resize,m_fixed,w_180,h_180&k=1787885694763230660","SERVICE MENU  \nThe service menu is entered by pressing the \u003CSUB-PAGE> key on the RC and VOLUME-DOWN key on the TV simultaneously when the TV is in TV- mode. The service menu is left by pressing the \u003CTV> key.  \nWhen entering the service mode the first menu item is IF (selection of normal IF) . Next items can be selected using the keys \u003CPROGRAM-UP> and \u003CPROGRAM-DOWN> . The value of each item can be changed using the keys \u003CVOLUME-UP> and \u003CVOLUME-DOWN> . The item values are displayed as decimal values, except for the tuner-band-selection, BITS and option items.  \nThey are displayed as hexa-decimal values. All values are stored in non-volatile memory when the service menu is left. The“INIT CTV832U” item initializes the NVM: It clears all names and tuning information of all programs and writes default values for the service alignments and preset values in NVM. While doing so, the OSD displays “BUSY”. When the initialization is finished, the message “READY” is written on the screen.  \n| Item | DefauIt | Explanation |\n| --- | --- | --- |\n| IF | 38.9 | IF selection (58.8, 45.8, 38.9 or 38.00 MHz) |\n| IFL1 | 33.9 | IF for SECAM-L1 selection (33 .4 or 33.9 MHz) |\n| HP | 31 | Horizontal parallelogram |\n| HB | 31 | Horizontal bow |\n| EW | 37 | East-west Width for picture setting 16:9 |\n| PW | 18 | East-west Parabola for picture setting 16:9 |\n| UCP | 13 | East-west Upper Corner parabola for picture setting 16:9 |\n| LCP | 13 | East-west Lower Corner parabola for picture setting 16:9 |\n| TC | 28 | East-west Trapezium for picture setting 16:9 |\n| HP4:3 | 31 | Horizontal parallelogram for picture setting 4:3 |\n| HB4:3 | 31 | Horizontal bow for picture setting 4:3 |\n| EW4:3 | 45 | East-west Width for picture setting 4:3 |\n| PW4:3 | 15 | East-west Parabola for picture setting 4:3 |\n| UCP4:3 | 35 | East-west Upper Corner parabola for picture setting 4:3 |\n| LCP4:3 | 25 | East-west Lower Corner parabola for picture setting 4:3 |\n| TC4:3 | 31 | East-west Trapezium for picture setting 4:3 |\n| HS | 31 | Horizontal Shift |\n| VS | 31 | Vertical Slope |\n| VA | 31 | Vertical Amplitude |\n| SC | 31 | S-Correction |\n| VSD | off | Vertical Scan Disable |\n| VSH | 31 | Vertical Shift |\n| VX | 25 | Vertical zoom (East-west only) |\n| BLR | 7 | Black Level Red |\n| BLG | 7 | Black Level Green |\n| WPR | 31 | White point correction Red |\n| WPG | 31 | White point correction Green |\n| WPB | 31 | White point correction Blue |\n| Ys | 15 | Y-delay adjustment for SECAM |\n| Yn | 8 | Y-delay adjustment for NTSC |\n| YP | 0 | Y-delay adjustment for PAL |\n\n6  \nYo 0 Y-delay adjustment for external sources AGC 4 AGC take over  \nCL 4 Cathode drive level  \nBits 00 (ACL=0; FCO= 0; SVO= 0; HP2= 0; FSL= 0; OSO= 0)  \nBits1 00 (FFI= 0; TV= 0; AV-1= 0; AV-2= 0; AV-2S= 0;  \nAV-3= 0; AV-3S= 0; AV = 0)  \nOptByte1 (Default=E3)  \nPAL-BG = Selection PAL-BG (1)  \nPAL-DK = Selection PAL-DK (1)  \nPAL-I = Selection PAL-I (0)  \nPAL-M = Selection PAL-M (0)  \nPAL-N = Selection PAL-N (0)  \nNTSC-M = Selection NTSC-M (1)  \nNTSC-443 = Selection NTSC-443 (1)  \nSECAM-BG = Selection SECAM-BG (1)  \n*(1) Selected,(0) Not Selected  \nOptByte2 (Default=07)  \nSECAM-DK = Selection SECAM-DK (1)  \nFRANCE = Selection FRANCE (1)  \nWEB = Enable/Disable (1/0)  \nPalBG Scr = When the PalBG Scr selected, TV searches only  \nPalBG. Otherwise it searches all. (0)  \nAV2 = Selection AV2 (0)  \n*(1) Selected,(0) Not Selected  \nOptByte3 (Default=E8)  \n= (0)  \nJR = (0)  \nHP = (0)  \nVol Bar = (1)  \nSub Wof = (0)  \nPresets = (1)  \nLock = (1)  \nHotel = (0)  \nWhen the Hotel mode selected, It’s impossible to  \nnter menu [settings.lt](settings.lt) selects the Hotel mode. (1)*(1) Selected,(0) Not Selected  \nOptByte4 (Default=B8)  \n16:9 = Set 16:9 mode active (1)  \n110 = Selection 110/90 Tube (1/0) Hpol = Default (0) Vpol = DefauIt (0) Field = Default (1) FE-Out = Default (1)  \nSw-on = When the power on the TV, it Enables or Disables  \nStandby Mode. (1/0)  \nVg-Check = Default (1)  \n*(1) Selected,(0) Not Selected  \nOptByte5 (Default=09)  \n","cbCaie14NSUWsGqY","https://ap.wps.com/l/cbCaie14NSUWsGqY","pdf",59205,"English","# Service menu entry and exit\n## Entering service mode\n## Menu item selection and value editing\n## Display format: decimal vs hexa-decimal\n## NVM storage and INIT CTV832U\n# Parameter reference and definitions\n## IF and tuner-related items\n## Geometry and picture shape parameters\n## Black level, white point, and delays\n## Option bytes and system selections\n# 16:9 and 4:3 register sets\n## Register behavior by screen aspect\n## Conditional visibility via option byte\n# Tuner parameter table\n## Low-, mid-, and high-band frequencies","[{\"question\":\"如何进入电视的service mode并退出service menu？\",\"answer\":\"当电视处于TV-模式时，需同时按RC上的\\u003cSUB-PAGE\\u003e键与TV上的VOLUME-DOWN键进入service menu；退出时按\\u003cTV\\u003e键离开。进入后先显示IF作为首个菜单项。\"},{\"question\":\"service menu中参数值如何选择与修改？\",\"answer\":\"用\\u003cPROGRAM-UP\\u003e与\\u003cPROGRAM-DOWN\\u003e选择菜单项；用\\u003cVOLUME-UP\\u003e与\\u003cVOLUME-DOWN\\u003e修改当前项的值。除调谐带选择、BITS与option项外，其余值以十进制显示；这些特定项则以十六进制显示。\"},{\"question\":\"INIT CTV832U在NVM初始化中做了什么？\",\"answer\":\"INIT CTV832U用于初始化NVM：清除所有程序名称与调谐信息，并写入默认的服务校准值与预设值。初始化过程中OSD显示“BUSY”，完成后屏幕显示“READY”。\"},{\"question\":\"16:9与4:3的寄存器参数如何对应调整？\",\"answer\":\"文档说明CTV832U对寄存器使用两套参数：16:9使用HP、HB、EW、PW、UCP、LCP等寄存器集合；4:3使用带扩展'4:3'（如HP4:3、HB4:3等）的第二套集合。每套参数需在对应画面比例（16:9或4:3）条件下调整，且EW、PW、UCP、LCP、TC、HP4:3等项仅在第4个option byte中16:9选项设置后出现在服务菜单中。\"}]","SERVICE MENU - TV Service Mode Adjustments - CTV832U Parameters | PDF",1791804244]