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 4: / Line 4: @@
 |series=D-Series
 |crt_type=TV
+|image_main=JVC AV-20D303 front.jpg
 |screen_size_in=20
 |aspect_ratio=4:3
 |weight=45 lb
+|chassis=GE3
 |resolution=480i
 |mfg_date=2002
@@ Line 49: / Line 51: @@
 }}
 == Description ==
-The JVC AV-20D303 is a 20-inch CRT television released in 2002 as part of JVC's D-Series consumer line. Unlike larger models in the series, this model uniquely includes a headphone jack. When headphones are connected, the internal speakers are automatically muted.
+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
@@ Line 58: / Line 84: @@
 * [[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:2002 CRTs]]
+[[Category:JVC D-Series]]
 [[Category:CRTs with component input]]
 [[Category:CRTs with S-Video]]
+[[Category:CRTs that cannot be RGB modded]]