JVC AV-20D303: Difference between revisions

Latest revision as of 16:49, 24 January 2026

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.

Technical Details

Chassis

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.

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.

Tube

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:

R = RCA/Thomson (A51KSV series)
S = Samsung
B = Goldstar/LG

Audio

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.

Red Push Fix

Late-era D-Series (Dx03) 2002 models may exhibit oversaturated reds. To correct this in the service menu:

Navigate to NTSC MAT → Set to 000

(Note: 2003-2004 Dx03/Dx04/Dx05 models with later revisions have no known red push fix)

Setup Tips

If component video appears in black and white, enable "V2 Component-In" in setup menu
Default sharpness is typically too high - adjust in user menu for optimal picture
To disable vertical edge enhancement, set LYC02 to zero in service menu (3L Y/C sub-menu)
Front Input 3 jacks are under the front panel door

Related Models

JVC AV-27D303 - 27" D-Series model
JVC AV-27D203 - 27" D-Series variant
JVC AV-20D202 - Earlier 20" D-Series

@@ Line 2: / Line 2: @@
 |brand=JVC
 |model_code=AV-20D303
+|series=D-Series
 |crt_type=TV
+|image_main=JVC AV-20D303 front.jpg
 |screen_size_in=20
 |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.
+== Technical Details ==
+=== Chassis ===
+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.
-== Overview ==
+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.
-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.
-== Features ==
+=== Tube ===
-* '''Component Video Input (YPbPr)''' - High-quality video connection for DVD players and gaming consoles
+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:
-* '''S-Video Input''' - Enhanced video quality over composite
+* '''R''' = RCA/Thomson (A51KSV series)
-* '''Multiple Composite Inputs''' - Two rear inputs (Input 1 and Input 2) plus front Input 3 for convenience
+* '''S''' = Samsung
-* '''Headphone Jack''' - Ø3.5mm headphone output (unique to this model in the series)
+* '''B''' = Goldstar/LG
-* '''MTS Stereo with SAP''' - Multichannel Television Sound with Secondary Audio Programming
-* '''3-LINE Digital Comb Filter''' - Improved picture quality and reduced color artifacts
-* '''HYPER-SURROUND''' - Enhanced stereo sound effect
-* '''BBE Sound Enhancement''' - Audio enhancement technology
-* '''Theater Pro D6500K''' - Color temperature adjustment for movie viewing
-* '''181 Channel Capability''' - Full channel tuning support including cable channels
-* '''V-Chip Parental Control''' - Content filtering with US and Canadian rating systems
-* '''XDS (Extended Data Services)''' - Auto clock setting and channel identification
-* '''Sleep Timer''' - Automatic power-off functionality
-* '''ON/OFF Timer''' - Programmable power on/off scheduling
-* '''Closed Caption''' - Built-in caption decoder
-* '''Channel Guard''' - Parental control function
-* '''Video Status Function''' - Display of current video settings
-== Technical Specifications ==
+=== Audio ===
-* '''Picture Tube:''' 20 inch (51 cm) measured diagonally, full square
+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.
-* '''Power Requirements:''' AC 120V, 60Hz
-* '''Power Consumption:''' 75W
-* '''Reception Format:''' NTSC, BTSC System (Multi-Channel Sound)
-* '''Reception Range:'''
-** VHF 2-13
-** UHF 14-69
-** CATV: 181 total channels (Sub Mid, Mid, Super, Hyper and Ultra bands)
-* '''Speakers:''' 2" × 3-1/2" (5×9cm) Oval type × 2
-* '''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)
-* '''Remote Control:''' RM-C253
-* '''Antenna Terminal:''' 75Ω F-Type Connector
-== Design ==
+=== Red Push Fix ===
-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.
+Late-era D-Series (Dx03) 2002 models may exhibit oversaturated reds. To correct this in the service menu:
+# Navigate to '''NTSC MAT''' → Set to '''000'''
-{{CRT input|signal=Composite|connector=RCA|count=1|location=rear|notes=INPUT 1}}
+(Note: 2003-2004 Dx03/Dx04/Dx05 models with later revisions have no known red push fix)
-{{CRT input|signal=Component|connector=RCA|count=1|location=rear|notes=INPUT 2 - YPbPr component video}}
-{{CRT input|signal=Composite|connector=RCA|count=1|location=rear|notes=INPUT 2 - can be used as composite or component}}
-{{CRT input|signal=Composite|connector=RCA|count=1|location=front|notes=INPUT 3 for easy access}}
-{{CRT input|signal=S-Video|connector=Mini-DIN 4-pin|count=1|location=rear|notes=Available on INPUT 1}}
-{{CRT input|signal=RF|connector=F connector|count=1|location=rear|notes=75Ω VHF/UHF antenna/cable input}}
-{{CRT output|signal=Audio|connector=RCA|count=2|location=rear|notes=Fixed audio output L/R}}
-{{CRT output|signal=Headphone|connector=3.5mm jack|count=1|location=front|notes=Ø3.5mm headphone output}}
 == 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
-== 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
 [[Category:JVC CRT TVs]]
 [[Category:20 inch CRTs]]
+[[Category:JVC D-Series]]
 [[Category:CRTs with component input]]
 [[Category:CRTs with S-Video]]
-[[Category:CRTs with headphone jack]]
+[[Category:CRTs that cannot be RGB modded]]