VESTEL AK33 Circuit description
AK33 BLOCK DIAGRAM
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AK33 FEATURES
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AK33 GENERAL BLOCK DIAGRAM
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IF&VIDEO BLOCK DIAGRAM 1
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IF&VIDEO BLOCK DIAGRAM 2
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AUDIO BLOCK DIAGRAM
CONTROLLER BLOCK DIAGRAM
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SMPS BLOCK DIAGRAM
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DEFLECTION&FBT BLOCK DIAGRAM
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CRT BASE BOARD BLOCK DIAGRAM
AK33 FEATURES
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It is a remote controlled colour television, with protocol RC5 in
general.
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100 programmes from VHF, UHF bands or cable channels can be
preset.
VHF (BAND I: CH 2-4, BAND III: CH 5-12) UHF (CH 21-69)
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It can tune cable channels. S1-S41
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Channel Table Search is default, but Linear Frequency Search is
optional.
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It is a Frequency Controlled Tuning (PLL) and control system for
multi-standard TV receivers with on-screen-display (OSD) for all
relevant control functions.
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The system is based on the ‘one-chip’ I
2
C bus controlled video
processing / deflection IC TDA888X which also controls mono sound.
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German, Nicam stereo, NTSC Stereo are detected with optional MSP
ICs. Also 3-D Panaroma, Dolby Virtual, Dolby Prologic , Dolby
Digital sounds are processed with optional MSP Ics.
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Teletext is available by micro-controller one-chip teletext module.
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ASM (Automatic Sound Detection ) is available.
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Automatic Sound Mute when no transmission, is available.
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When no valid signal is detected, after 5 minutes the TV switches itself
automatically to stand-by mode.
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75 ohm aerial socket ( PLL Tuner )
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It has 2 Eurosockets (Scarts) as default.
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Optional peripherals are :
1. Fav-in (Audio and Video input from the front of the TV through RCA
jacks),
2. Bav-in (Audio and Video input from the back of the TV through RCA
jacks),
3. Bav-out (Audio and Video output from the back of the TV through RCA
jacks),
4. Headphone output, F-svhs ( Chroma and Luma input from the front of the
TV through svhs jack ),
5. B-svhs (Chroma and Luma input from the back of the TV through svhs
jack),
6. External speaker (Audio output for external speakers through RCA jacks ,
Right-Left ),
7. Line-out ( Audio output for external amplifiers through RCA jacks , RightLeft ),
8. Subwoofer output ( RCA jack ) ,
9. Dolby Surround output,
10.
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3 System and Standard combinations are available :
Optic Audio output ( in TVDVDs )
1. Pal Secam BG II',
2. Pal Secam BG DK LL',
3. Pal M N NTSC M.
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2x 12W
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90- 270V & 170-270V 50/60 Hz power supply adaptation is optional
Sound Output Power.
rms
according to the regions.
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<3W power consumption at Stand-by mode.
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Active PFC (Power Factor Correction) is optional.
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Sleep timer, Child lock are available as defaults.
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WSS ( Wide Screen Signalling ) is default and 4:3, 16:9, Cinema picture
modes are default. Subtitle and Zoom picture modes are optional.
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APS ( Automatic Programming System ) is default.
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NTSC Playback is optional.
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28" 4:3, 29" 4:3, 28" RF 16:9, 28" SF 16:9, 29" RF 4:3, 29" SF 4:3, 32" SF
16:9, 32" RF 16:9 , 33" 4:3 are optional tube sizes.
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No text, one page and 8 page fasttext/toptext are available teletext options.
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Closed Caption and List Mode are available for USA, Australia and New
Zealand.
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CTI is a default feature.
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Comb Filter is an optional Feature.
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PIP ( Picture in picture ) is an optional feature.
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EPG ( Electronic Programming Guide ) is an optional feature.
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Rotation Circuitry is optional for Real Flat tubes.
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Tilt&Trapezoid rotation and Degauss on the Menu is optional.
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Dynamic Focus is optional for RF tubes.
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BSVM ( Beam Scan Velocity Modulation ) is optional.
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TV DVD ( 29" RF , 32" RF ) is available.
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Time Shift TV is available.
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TV DVB is available.
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