Related Manuals for VESTEL 11AK19
Summary of Contents for VESTEL 11AK19
- Page 1 SERVICE MANUAL CHASSIS 11 A K 1 9 FIRMEN: EUROLINE PALLADIUM S.E.G. TECHLINE VESTEL...
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Page 2: Table Of Contents
CONTENTS Contents ........* ............................. 1 Safety Precautions . -
Page 3: Safety Precautions
DO NOT CHANGE ANY MODULE UNLESS THE SET IS SWITCH OFF The mains supply side of the switch mode power supply transformer is live. Use an isolating transformer. The receivers fulfill completely the safety requirements. Safety precautions: Servicing of this TV should only be carried out by a qualified person. - Components marked with the warning symbol on the circuit diagram are critical for safety and must only be replaced with an identical component. - Page 4 modulation is rather long to avoid visible variations of the signal amplitude, lo improve me speed 01 me AUU system a circuit has been included which detects whether the AGC detector is activated every frame period. When during 3 frame periods no action is detected the speed of the system is increased.
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Page 5: Tuner
3. TUNER Either a PLL or a VST tuner is used as a tuner. UV1316 (VHF/UHF) is used as a PLL tuner. For only PALM/N, NTSC M applications UV 1336 is used as the PLL tuner. UV 1 3 1 5 (VHF/ UHF) is used as a VST Tuner. -
Page 6: Digital Tv Sound Processor Tda9875
Sound IF Input: The sound IF amplifier consists of three AC-coupled differential amplifier stages each with approximately 20dB gain. At the output of each stage is a multiplier for gain controlling. The overall control range is approximately -6 to +60dB and the frequency response (-3dB) of the IF amplifier is approximately 6 to 70MHz. -
Page 7: Vertical Output Stage With Tda8351/Tda8356
8. VERTICAL OUTPUT STAGE WITH TDA8351/8356 The TDA8351/8356 vertical deflection circuit can be used in 90° and 110° deflection systems with field frequencies from 50 up to 1201-fz. With its bridge configuration the deflection output can be DC coupled with few external components. Only a single supply voltage for the scan and a second supply for the flyback are needed. -
Page 8: Class Ab Stereo Headphone Driver Tda1308
15. CLASS AB STEREO HEADPHONE DRIVER TDA1308 The TDA1308 is an integrated class AB stereo headphone driver contained in a DIPS plastic package. The device is fabricated in a 1 mm CMOS process and has been primarily developed for portable digital audio applications. 16. - Page 9 1C VERSION (TDA) 8840 8842 8844 Multi-standard IF Automatic Volume Limiting PAL Decoder SECAM Decoder NTSC Decoder Dynamic Skin Control Colour Matrix PAL/NTSC (Japan) Colour Matrix NTSC Japan/USA YUV interface Base-band delay line Adjustable luminance delay time Horizontal geometry Horizontal and vertical zoom Vertical scroll PINNING PIN VALUE...
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Page 10: Uv1315/Uv1316/Uv1336
UV1315,UV1316,UV1336 General description of UV1315: The U V 1 3 1 5 tuner belongs to the UV 1300 familiy of tuners, which are designed to meet a wide range of applications. It is a combined VHF, UHF tuner suitable for CCIR systems B/G, H, L, L', I and I'. The low IP output impedance has been designed for direct drive of a wide variety of SAW filters with sufficient suppression of triple transient. -
Page 11: Tea6415C
PINNING PIN VALUE 1 . Gain control voltage : 4.0V, Max:4.5V Tuning voltage Address select Max:5.5V Serial clock : Min.--0.3V, Max:5.5V Serial data Min:-0.3V, Max:5.5V Not connected Supply voltage 5.0V, Min:4.75V, Max:5.5V ADC input (optional) Tuning supply voltage : 33V, Min:30V, Max-35V 10. -
Page 12: Tda2614/Tda2615/Tda2616Q
10. Switch input select control Audio switching voltage to activate pin7 : Min :OV, Max :0.8V Audio switching voltage to activate pin9 : Min: 1.5V, Max :Vp 1 1 . Supply voltage 12V,Min:10.8V,Max:13.2V 12. Mute control For Mute-ON Min : 0V, Max: 0.8V For Mute-OFF Min : 1.5V, Max: Vp 13. -
Page 13: Tda8351/Tda8356
PINNING PIN VALUE 1 . Non-inverting input 1 700mVrms, Min : SOOmVrms, Max : 900mVrms Mute input 300mA (For mute to activate) Ground Output 1 9.8Vrms Supply voltage (negative) -16VDC Output 2 9.8Vrms Supply voltage (positive) +16VDC Inverting inputs 1 and 2 (Ground) Non-inverting input 2 700mVmns, Min : SOOmVims, Max: 900mVrms TDA8351/8356:... -
Page 14: Saa4961
SAA4961: The SAA4961 is an adaptive alignment-free one chip comb filter compatible with both PAL and NTSC systems and provides high performance in Y/C separation. Features: • One chip adaptive multi-standard comb filter • Time discrete but continuous amplitude signal processing with analogue interfaces •... -
Page 15: Sda525X
Safety/Protection Features Overvoltage Protection Facility against Open Loop Protection against Short Circuit on Oscillator Pin Fully Programmable Foldback Soft-Start Feature Accurate max Duty Cycle Setting Demagnetization (Zero Current Detection) Protection Internally Trimmed Reference Green Controller" Low Start-Up and Operating Current Patented Stand-by Pulsed Mode for low stand-by losses Low dV/dT for Low EMI radiations PINNING... - Page 16 PINNING PIN VALUE 1. Crystal selection output 1 : LOW level HIGH level 4.2V 2. Volume + switch input : LOW level HIGH level 3. Volume - switch input . LOW level HIGH level 4. Program - switch input LOW level HIGH level 5.
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Page 17: Tda9875
TDA9875: General description: The TDA9875 is a single-chip Digital TV Sound Processor (DTVSP) for analogue and digital multi-channel sound systems. Features: Demodulator and decoder section: • Sound IF (SIF) input switch e.g. to select between terrestrial TV SIF and SAT SIF sources •... -
Page 18: Tda9818
32. External audio input left channel 350mVrms 33. SCART 1 input right channel 350mVrms 34. SCART 1 input left channel 350mVrms 35. Ground guards 350mVrms 36. SCART 2 input right channel 350mVrms 37. SCART 2 input left channel 5V, Min : 4.75V, Max : 5.5V 38. -
Page 19: St24C08
13. Sound intercanier input voltage Input signal voltage for lock-in: Max : lOOmVrms Input signal voltage : 250mVnns 14. Tuner AGC output IF input signal voltage for minimum starting point of tuner takeover 2mV, Max: 5mV IF input signal voltage for maximum starting point of tuner takeover 100mV,Min:50mV 15. -
Page 20: Tda9855
TDA9855 General description: The TDA9855 is a bipolar-integrated BTSC stereo/SAP decoder with hi-fi audio processor (lyC-bus controlled) for application in TV sets. Features: • Quasi alignment-free BTSC stereo decoder due to auto adjustment of channel separation via lyC-bus • High integration level with automatically tuned integrated filters •... -
Page 21: Ak19 Chassis Manual Adjustment Procedure
AK19 CHASSIS MANUAL ADJUSTMENTS PROCEDURE In order to enter the service menu, first enter the installation menu and then press the digits 4, 7, 2 and 5 respectively. For ADJUST settings: Select Adjust using VorA button and press Oor<^| button to enter it. To select different adjust parameters, use V^A button. To change the selected parameter, use [>... -
Page 22: 3 Vertical Amplitude Adjustment
4:3 VERTICAL AMPLITUDE ADJUSTMENT: ADJUST 1 4 = 4 : 3 Vertical Amplitude Enter a PAL B/G test pattern via RF. Change vertical slope till horizontal black lines on both the upper and lower part of the test pattern become very close to the upper and lower horizontal sides of picture tube and nearly about to disappear. Check and readjust VERTICAL AMPLITUDE item if the adjustment becomes improper after some other geometric adjustments are done. -
Page 23: Ew Corner Parabola Adjustment
16:9 EW CORNER PARABOLA ADJUSTMENT (only for 1100 picture tubes): ADJUST 28 = 16 : 9 EW Corner Parabola Enter a PAL B/G test pattern via RF. Change EW Comer Parabola till vertical lines at the comers of both sides of picture frame become vertical and parallel to vertical corner sides of picture tube. -
Page 24: Option 01
OPTION 01 B7B6B5B4B3B2B1BO B7=Forf: 1 (Motel) B6= Fors: 1 (Note 1 ) B5 = DL : X (De-interface: 0= Interface, 1= De-interlace) (don't care) B4 = STB : X (Stand-by) (0= TDA884X in standby mode, 1= 1C operational) (don't care) B3 = Poc : X (Synchronisation mode: 0=Synchronization active, 1 =Synchronisation not active) (don't care) B2 = Cm2 : X (Note2) (don't care) -
Page 25: Option 04
Note-1: 0 = Pal+ helper output blanking disabled 1 = Pal+ helper output blanking enabled Note2: Comb Filter 0 = Pin 33 Low, comb filter off 1 = Sub-carrier output pin 33 active, comb filter on Note3: CL2,CL1,CLO bits: Cathode drive level: CLO Variation Cathode Drive Level Minimum + 1 4 %... -
Page 26: Option 08
1 , 0, 0, 1 = N: Norway 1 , 0, 1 , 0=SF: Finland 1 . 0 , 1 , 1 = GB: Great Britain 1 , 1 , 0, 0 = NL: Netherlands 1 , 1 , 0, 1 = P: Portugal 1 , 1 , 1 , 0 = E: Spain 1 , 1 , 1 , 1 = TR:Turkey Note2:... -
Page 27: General Block Diagram Of Chassis Ak19
GENERAL BLOCK DIAGRAM OF CHASSIS AK19... -
Page 28: Electronic Component Part List
ELECTRONIC COMPONENTS PART LIST POZ.N( 3 VESKOD DESCRIPTION POZ.NO VESCOD DESCRIPTION 1005017350 CHSASSY19-1GF32122133231 C373 3081010356 CAPEL100UF16VM 1007204050 R/C 2040 (NOBRAND) C374 3081010356 CAP EL 100UF 16V M 1010000535 SPKASSY.5X/54/55 19ST2/60 C426 3081010456 CAP EL 100UF 25V M 2002500200 FUSE ASSY.TK79-A (2.5A) C848 3081010456 CAP EL 100UF 25V M... - Page 29 POZ.NO VESKOD POZ.NO VESCOD DESCRIPTION DESCRIPTION C517 CAPEL10UF50VM D302 3531941480 3081000856 DIODE 1N4148 C570 3081000856 CAPEL10UF50VM D303 3531941480 DIODE 1N4148 C560 CAPEL10UF50VM D420 3531941480 3081000856 DIODE 1N4148 3081001454 CAPEL10UF250VM 3531941480 C625 0503 DIODE 1N4148 3081001454 CAPEL10UF250VM 0504 3531941480 C902 DIODE 1N4148 CAPEL100UF16VM C02S 3081010356...
- Page 40 VESTEL 11AK19 MODEL SERVICE MANUAL...
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