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| |brand=JVC | | |brand=JVC |
| |model_code=AV-20D303 | | |model_code=AV-20D303 |
| | |series=D-Series |
| |crt_type=TV | | |crt_type=TV |
| | |image_main=JVC AV-20D303 front.jpg |
| |screen_size_in=20 | | |screen_size_in=20 |
| |aspect_ratio=4:3 | | |aspect_ratio=4:3 |
| |remote_control=RM-C253 | | |weight=45 lb |
| |standards_semantic=NTSC | | |chassis=GE3 |
| |component_input=Yes | | |resolution=480i |
| |s_video_input=Yes | | |mfg_date=2002 |
| |composite_input=Yes | | |power_consumption=75 W |
| |rf_input=Yes | | |dimensions_whd_in=23.375 × 18 × 19.25 |
| |year_released=2002 | | |audio_output=1.2 W + 1.2 W |
| | |speakers=2 |
| | |remote=RM-C253 |
| | |features=Component Video, S-Video, Headphone Jack, MTS Stereo with SAP, 3-Line Digital Comb Filter, Hyper-Surround, BBE Sound Enhancement, Theater Pro D6500K, V-Chip, XDS Auto Clock, Sleep Timer, On/Off Timer, Closed Caption, Channel Guard |
| }} | | }} |
| | {{CRT input |
| | |signal=RF |
| | |connector=RF (F-type) |
| | |count=1 |
| | |location=rear |
| | |notes=75Ω VHF/UHF antenna/cable input, 181 channels |
| | }} |
| | {{CRT input |
| | |signal=Composite (CVBS) |
| | |connector=RCA (connector) |
| | |count=3 |
| | |notes=INPUT 1, INPUT 2 (rear), INPUT 3 (front) |
| | }} |
| | {{CRT input |
| | |signal=S-Video (Y/C) |
| | |connector=Mini-DIN-4 |
| | |count=1 |
| | |location=rear |
| | |notes=INPUT 1 |
| | }} |
| | {{CRT input |
| | |signal=Component (YPbPr) |
| | |connector=RCA (connector) |
| | |count=1 |
| | |location=rear |
| | |notes=INPUT 2 |
| | }} |
| | {{CRT link |
| | |link_type=Manufacturer |
| | |link_source=JVC |
| | |link_url=https://support.jvc.com/consumer/product.jsp?modelId=MODL026925&pathId=73&page=1&archive=true |
| | }} |
| | == Description == |
| | The JVC AV-20D303 is a 20-inch CRT television released in 2002 as part of JVC's D-Series consumer line. This late-era D-Series model features the GE3 chassis with Toshiba TM8812C- jungle IC. Unlike larger models in the series, this model uniquely includes a headphone jack - when headphones are connected, the internal speakers are automatically muted. |
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| | == Technical Details == |
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| == Overview == | | === Chassis === |
| The JVC AV-20D303 is a 20-inch CRT television released in 2002 as part of JVC's consumer television line. This model features a black bezel design and offers multiple input options including component video, S-Video, and composite connections. It is the smaller sibling to the 27-inch models in the same series and uniquely includes a headphone jack. | | The AV-20D303 uses the '''GE3''' chassis, featuring the '''Toshiba TM8812C-''' jungle IC. This late-era chassis represents a cost-reduced design and '''cannot be RGB modded''' - the component video inputs provide near-RGB quality for retro gaming. |
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| == Features ==
| | Unlike the earlier GE chassis, the GE3 lacks the E/W circuit, resulting in some barrel distortion that cannot be corrected. The 3-line digital comb filter provides quality composite and S-Video processing. |
| * '''Component Video Input (YPbPr)''' - High-quality video connection for DVD players and gaming consoles
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| * '''S-Video Input''' - Enhanced video quality over composite
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| * '''Multiple Composite Inputs''' - Two rear inputs (Input 1 and Input 2) plus front Input 3 for convenience
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| * '''Headphone Jack''' - Ø3.5mm headphone output (unique to this model in the series)
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| * '''MTS Stereo with SAP''' - Multichannel Television Sound with Secondary Audio Programming
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| * '''3-LINE Digital Comb Filter''' - Improved picture quality and reduced color artifacts
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| * '''HYPER-SURROUND''' - Enhanced stereo sound effect
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| * '''BBE Sound Enhancement''' - Audio enhancement technology
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| * '''Theater Pro D6500K''' - Color temperature adjustment for movie viewing
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| * '''181 Channel Capability''' - Full channel tuning support including cable channels
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| * '''V-Chip Parental Control''' - Content filtering with US and Canadian rating systems
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| * '''XDS (Extended Data Services)''' - Auto clock setting and channel identification
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| * '''Sleep Timer''' - Automatic power-off functionality
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| * '''ON/OFF Timer''' - Programmable power on/off scheduling
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| * '''Closed Caption''' - Built-in caption decoder
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| * '''Channel Guard''' - Parental control function
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| * '''Video Status Function''' - Display of current video settings
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| == Technical Specifications == | | === Tube === |
| * '''Picture Tube:''' 20 inch (51 cm) measured diagonally, full square
| | The AV-20D303 uses a 20" 4:3 CRT. The tube brand can be identified by the letter beside the serial number on the back of the set: |
| * '''Power Requirements:''' AC 120V, 60Hz
| | * '''R''' = RCA/Thomson (A51KSV series) |
| * '''Power Consumption:''' 75W
| | * '''S''' = Samsung |
| * '''Reception Format:''' NTSC, BTSC System (Multi-Channel Sound) | | * '''B''' = Goldstar/LG |
| * '''Reception Range:'''
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| ** VHF 2-13
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| ** UHF 14-69
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| ** CATV: 181 total channels (Sub Mid, Mid, Super, Hyper and Ultra bands)
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| * '''Speakers:''' 2" × 3-1/2" (5×9cm) Oval type × 2
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| * '''Audio Output:''' 1.2W + 1.2W | |
| * '''Dimensions (W×H×D):''' 23 3/8" × 18" × 19 1/4" (59.2 × 45.6 × 48.7 cm) | |
| * '''Weight:''' 45.0 lbs (20.4 kg)
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| * '''Remote Control:''' RM-C253
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| * '''Antenna Terminal:''' 75Ω F-Type Connector
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| == Design == | | === Audio === |
| The AV-20D303 features a black plastic bezel with bottom-mounted speakers. The control panel is located on the front right side of the television with volume, channel, and menu controls. Unique among its series, this model includes a headphone jack on the front panel. | | The AV-20D303 uses a 1.2W × 2 stereo power amplifier with BBE Sound Enhancement and Hyper-Surround processing. The included headphone jack automatically mutes internal speakers when in use. |
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| {{CRT input|signal=Composite|connector=RCA|count=1|location=rear|notes=INPUT 1}}
| | === Red Push Fix === |
| {{CRT input|signal=Component|connector=RCA|count=1|location=rear|notes=INPUT 2 - YPbPr component video}}
| | Late-era D-Series (Dx03) 2002 models may exhibit oversaturated reds. To correct this in the service menu: |
| {{CRT input|signal=Composite|connector=RCA|count=1|location=rear|notes=INPUT 2 - can be used as composite or component}}
| | # Navigate to '''NTSC MAT''' → Set to '''000''' |
| {{CRT input|signal=Composite|connector=RCA|count=1|location=front|notes=INPUT 3 for easy access}}
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| {{CRT input|signal=S-Video|connector=Mini-DIN 4-pin|count=1|location=rear|notes=Available on INPUT 1}}
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| {{CRT input|signal=RF|connector=F connector|count=1|location=rear|notes=75Ω VHF/UHF antenna/cable input}}
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| {{CRT output|signal=Audio|connector=RCA|count=2|location=rear|notes=Fixed audio output L/R}}
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| {{CRT output|signal=Headphone|connector=3.5mm jack|count=1|location=front|notes=Ø3.5mm headphone output}}
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| == RGB Mod Information ==
| | (Note: 2003-2004 Dx03/Dx04/Dx05 models with later revisions have no known red push fix) |
| RGB modification information for this specific model is limited. The AV-20D303 may share similarities with other JVC 20-inch models like the AV-20D202, which uses the same board as the JVC AV-27230. However, JVC sets often digitally disable unused RGB signals via the Jungle IC's RGB SEL register, making RGB modification complex and potentially requiring microprocessor intervention. Since this model already includes high-quality component video inputs, an RGB mod may not provide significant picture quality improvements.
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| == Setup Tips == | | == Setup Tips == |
| * If component video appears in black and white, access the setup menu and enable "V2 Component-In" for INPUT 2 | | * If component video appears in black and white, enable "V2 Component-In" in setup menu |
| * The television includes I2C bus control for advanced service adjustments | | * Default sharpness is typically too high - adjust in user menu for optimal picture |
| * The front Input 3 jacks are located under the front panel door - pull to open | | * To disable vertical edge enhancement, set LYC02 to zero in service menu (3L Y/C sub-menu) |
| * When headphones are connected, the internal speakers are automatically muted
| | * Front Input 3 jacks are under the front panel door |
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| == Service Information == | | == Related Models == |
| This model uses a user's guide (document number LCT1145-001B-A) published in June 2002. The AV-20D303 is the 20-inch model in the D303 series and uses the RM-C253 remote control.
| | * [[JVC AV-27D303]] - 27" D-Series model |
| | * [[JVC AV-27D203]] - 27" D-Series variant |
| | * [[JVC AV-20D202]] - Earlier 20" D-Series |
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| [[Category:JVC CRT TVs]] | | [[Category:JVC CRT TVs]] |
| [[Category:20 inch CRTs]] | | [[Category:20 inch CRTs]] |
| | [[Category:JVC D-Series]] |
| [[Category:CRTs with component input]] | | [[Category:CRTs with component input]] |
| [[Category:CRTs with S-Video]] | | [[Category:CRTs with S-Video]] |
| [[Category:CRTs with headphone jack]] | | [[Category:CRTs that cannot be RGB modded]] |
