Sharp 28LF-92EES Service Manual
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Sharp 28LF-92EES Service Manual

Sharp 28LF-92EES Service Manual

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ELECTRICAL SPECIFICATIONS ........................................................................................ 3
IMPORTANT SERVICING NOTES ...................................................................................... 4
CONTROLS & TERMINALS ................................................................................................ 5
PRINTED WIRING BOARD LAYOUT ................................................................................. 7
PARTS LISTING ................................................................................................................... 8
HOW TO UPDATE THE TECHNICAL INFORMATION ...................................................... 15

SHARP CORPORATION

SERVICE MANUAL

28LF-92EES
MODEL
In the interests of user safety (required by safety
regulations in some countries) the set should be re-
stored to its original condition and only parts identi-
cal to those specified should be used.
In order to service the model 28LF-92EES, refer
to
the
AK-45
(SE00AK45CHA00).
CONTENTS
1
SE0028LF92S00
Issued: 19
AK- 45
CHASSIS
Chassis
Service
This document has been published to
be used for after sales service only.
28LF-92EES
April 2004
th
Manual

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  • Page 1: Service Manual

    In the interests of user safety (required by safety regulations in some countries) the set should be re- stored to its original condition and only parts identi- cal to those specified should be used. In order to service the model 28LF-92EES, refer AK-45 Chassis Service Manual (SE00AK45CHA00).
  • Page 2 28LF-92EES SERVICE MANUAL UPDATE LOG SHEET Technical Report No. Application Cause / Solution Part No. Page No. Data /Serial No. Technical Bulletin No. Use this page to keep any special servicing information as Technical Report (Bulletin), Technical Information, etc. If only part number changes are required, just change part number directly the part number in the Parts Listing Section.

  • Page 3: Electrical Specifications

    Y=0.300 ± 0.015 Specifications are subject to change without prior notice. MODEL DESTINATION (Operation Manual Languages) 28LF-92EES: Español, Português. WARNING The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug and power receptacle, when servicing this chassis.

  • Page 4: Important Servicing Notes

    28LF-92EES IMPORTANT SERVICING NOTES Only qualified service personnel are allowed to carry out maintenance and repair of this receiver. Servicing of High Voltage System and CRT It is important that the static charge is removed from the high voltage system when carrying out work on the receiver.

  • Page 5: Controls & Terminals

    28LF-92EES CONTROLS & TERMINALS TWD9@P WD9@P GTBDÃÃÃS999 ÃÃÃÃÃÃÃÃ6V9DP TWD9@P WD9@P GTBDÃÃÃS999 ÃÃÃÃÃÃÃÃ6V9DP FRONT PANEL VIDEO Speakers (left + right) AUDIO L (L/S/G/I) = Audio left = Power On / Off = Volume -/+ AUDIO R (R/D/D/D) = Audio right = Headphone 3,6 mm Ø...

  • Page 6: Remote Control

    28LF-92EES REMOTE CONTROL = Stand By = Cursor Up = Cursor Right OK = OK = Info (Program Menu) 0 - 9 = Direct Program -/-- = Double Digit = Wide mode button P/CH+ = Program + + = Volume +...
  • Page 7 28LF-92EES CHASSIS LAYOUT Mother Unit CRT Unit Control Panel Unit...

  • Page 8: Parts Listing

    D100 30001329 DIODE 1N4007 1A/1000V 30A IC301 30016113 IC AAMP TDA7269A 2*14W MULTIWATT11 D100 30001279 LED RED/GREEN LTL293SJ IC500 20152368 PR.IC.45-SHARP 1.2.77-L.1 D100 30002733 LED INFRARED IR333 IC502 20142752 IC 24C16 V054L5314A00000110812 D101 20108354 DIODE BRIDGE GBU4M 4A/1000V 150A(FORMLU) IC600...
  • Page 9 28LF-92EES REF No. PARTS DESCRIPTION SN CODE EX CODE REF No. PARTS DESCRIPTION SN CODE EX CODE D132 30001285 DIODE 1N4148 SMD L203 30001996 FIXED COIL 22UH Q40 K D133 30003722 DIODE ZENER ZPD15V L206 30001979 FIXED COIL 1UH Q45 M-A...
  • Page 10 28LF-92EES REF No. PARTS DESCRIPTION SN CODE EX CODE REF No. PARTS DESCRIPTION SN CODE EX CODE C106 30000371 CAP EL 22UF 50V M C226 30000352 CAP EL 100UF 16V M C106 30000290 CAP CER 10NF 50V Z F C227...
  • Page 11 28LF-92EES REF No. PARTS DESCRIPTION SN CODE EX CODE REF No. PARTS DESCRIPTION SN CODE EX CODE C356 30000109 CAP MKT 470NF 63V J C706 30012581 CAP SMD 1NF 50V K R (0603) C357 30000345 CAP EL 10UF 50V M...
  • Page 12 28LF-92EES REF No. PARTS DESCRIPTION SN CODE EX CODE REF No. PARTS DESCRIPTION SN CODE EX CODE C810 30012574 CAP SMD 470PF 50V J (0603) R142 30012657 RES SMD 1/16W 1K J (0603) C811 30012574 CAP SMD 470PF 50V J (0603) R143 30020455 RES SMD 1/16W 1.5K F (0603)
  • Page 13 28LF-92EES REF No. PARTS DESCRIPTION SN CODE EX CODE REF No. PARTS DESCRIPTION SN CODE EX CODE R269 30012641 RES SMD 1/16W 10K J (0603) R429 30012510 RES SMD 1/16W 100R J (0603) R270 30012641 RES SMD 1/16W 10K J (0603)
  • Page 14 28LF-92EES REF No. PARTS DESCRIPTION SN CODE EX CODE REF No. PARTS DESCRIPTION SN CODE EX CODE R616 30018904 RES MO 5W 4.7k J R794 30012695 RES SMD 1/16W 470R J (0603) R618 30001229 RES FUSE SAFE 1W 2.2R J...
  • Page 15 30001764 CONN HEADER 2P 2.5MM(9.7MM) TOP BLACK 20151304 POWER CORD ASSY.(2.4MT W/FTZ)(LONGWELL) PL711 30001836 CONN HEADER 3P 2.5MM TOP BLACK SD 30028208 POWER CORD SAFE EURO 2.2M SHARP W/FILTER PL901 30028447 SOCKET CRT SAFE NARROWNECK W/GND INCHANG 20151924 MD.ASY.SB112-FAV+HP+SVHS 2862/3262 (AK45 PL902 30010039 CONN HEADER 8P 2.5MM TOP WHT...
  • Page 16 Technical information and Production: Vestel Electronik AS PRINTED BY: Think Ecology, please use Technical information re-issued: SHARP ELECTRONICA ESPAÑA S.A. Service Manual Group Engineering Dept. Polígono Industrial Can Sant Joan 08190 Sant Cugat del Vallès Barcelona...
  • Page 17 INTEGRATED CIRCUIT DESCRIPTIONS ............... 10 SERVICE MODE ADJUSTMENTS ..................23 BLOCK DIAGRAM ........................ 61 CIRCUIT DIAGRAMS ..................... 62 HOW TO UPDATE THE TECHNICAL INFORMATION ............73 SHARP CORPORATION This document has been published to be used for after sales service only.
  • Page 18 AK - 45 CHASSIS SERVICE MANUAL UPDATE LOG SHEET Technical Report No. Application Cause / Solution Part No. Page No. Data /Serial No. Technical Bulletin No. Use this page to keep any special servicing information as Technical Report (Bulletin), Technical Information, etc. If only part number changes are required, just change part number directly the part number in the Parts Listing Section.

  • Page 19: Table Of Contents

    AK - 45 CHASSIS TABLE OF CONTENTS 1.INTRODUCTION ..........................6 2.TUNER ..............................6 3.IF PART (TDA9885/86) ........................6 4.VIDEO SWITCH TEA6415 ......................7 5.MULTI STANDARD SOUND PROCESSOR ................7 6.SOUND OUTPUT STAGE WITH TDA7269A .................7 7.VERTICAL OUTPUT STAGE WITH STV9379FA ..............7 8.VIDEO OUTPUT AMPLIFIER TDA6108 ...................7 9.POWER SUPPLY (SMPS) ......................8...
  • Page 20 AK - 45 CHASSIS 13.10.SDA5555 ..........................18 13.10.1.General definition ......................18 13.10.2.Features..........................18 13.11.MC44608 ..........................19 13.11.1.Description.........................19 13.11.2.General Features .......................20 13.11.3.Pin Connections ........................20 13.12.TCET1102G .........................21 13.12.1.Description.........................21 13.12.2.Applications ........................21 13.12.3.Features..........................21 13.13.TDA9885T ..........................21 13.13.1.General Description ......................21 13.13.2.Features..........................21 13.13.3.Pinning..........................22 13.14.PI5V330 ..........................22 13.14.1.General Description ......................22 14.AK45 CHASSIS PRODUCTION SERVICE MODE ADJUSTMENTS ......23 14.1.SERVICE MENU ..........................23 14.2.ADJUST MENU ...........................23...
  • Page 21 AK - 45 CHASSIS Option 39. Personal Preference Equalizer Band 1 ..............44 Option 40. Personal Preference Equalizer Band 2 ..............44 Option 41. Personal Preference Equalizer Band 3 ..............44 Option 42. Personal Preference Equalizer Band 4 ..............44 Option 43. Personal Preference Equalizer Band 5 ..............44 Option 44.

  • Page 22: Introduction

    AK - 45 CHASSIS 1.INTRODUCTION 11AK45 is a 50Hz colour television capable of driving 24” + CRT sizes (beginning from 24” 16:9 up to 33”). The chassis is capable of operation in PAL, SECAM, NTSC (playback) colour standards and multiple transmission standards as B/G, D/K, I/I’, and L/L´.

  • Page 23: Video Switch Tea6415

    AK - 45 CHASSIS external reference signal or 4 MHz crystal C VAGC(pos) VIF-PLL filter TAGC VAGC VPLL 9 (8) 14 (15) 16 (17) 19 (21) 15 (16) 21 (23) C AGC(neg) C BL TUNER AGC VIF-AGC RC VCO DIGITAL VCO CONTROL AFC DETECTOR VIF2 2 (31)

  • Page 24: Power Supply (Smps)

    AK - 45 CHASSIS 9.POWER SUPPLY (SMPS) The DC voltages required at various parts of the chassis are provided by an SMPS transformer controlled by the IC MC44608, which is designed for driving, controlling and protecting switching transistor of SMPS. The transformer generates 145V for Horizontal output stage, +/-14V for audio amplifier, 5V and 3.3V stand by voltage and 8V, 12V and 5V supplies for other different parts of the chassis.

  • Page 25: Acquisition Features

    AK - 45 CHASSIS • Up to 16 Colours per DRCS Character • One out of Eight Colours for Foreground and Background Colours for 1-bit DRCS and ROM Characters • Shadowing • Contrast Reduction • Pixel by Pixel Shiftable Cursor With up to 4 Different Colours •...

  • Page 26: Ic Descriptions

    AK - 45 CHASSIS K9356M: Standard B/G, D/K, I, L Features TV IF audio filter with pass band for sound carriers at 32,40 MHz (D/K, L), 32,90 MHz (I) and 33,40 MHz (B/G) K3953M Terminal and Pin configuration are the same with K9656M: Standard B/G, D/K, I, L/L’...

  • Page 27: Pinning

    AK - 45 CHASSIS • Low power consumption • Short-circuit resistant • High performance • high signal-to-noise ratio • High slew rate • Low distortion • Large output voltage swing. 13.2.3.Pinning SYMBOL DESCRIPTION OUTA Output A INA(neg) Inverting input A INA(pos) Non-inverting input A Negative supply...

  • Page 28: Features

    AK - 45 CHASSIS 13.3.2.Features Standard Selection with single I C transmission Automatic Standard Detection of terrestrial TV standards Automatic Sound Selection (mono/stereo/bilingual), new registers MODUS, STATUS Two selectable sound IF (SIF) inputs Automatic Carrier Mute function Interrupt output programmable (indicating status change) Loudspeaker / Headphone channel with volume, balance, bass, treble, loudness AVC: Automatic Volume Correction Subwoofer output with programmable low-pass and complementary high-pass filter...

  • Page 29: Vdp313Xy

    AK - 45 CHASSIS Not connected Not connected AVSS Analog ground AVSS Analog ground MONO_IN Mono input Not connected Reference voltage IF A/D VREFTOP converter SC1_IN_R SCART 1 input, right SC1_IN_L SCART 1 input, left ASG1 AHVSS Analog Shield Ground 1 SC2_IN_R SCART 2 input, right SC2_IN_L...

  • Page 30: Features

    AK - 45 CHASSIS 13.4.2.Features Video Decoding and Processing – four CVBS, one S-VHS input, one YC component input – integrated high-quality A/D converters and associated clamp and AGC circuits – adaptive 2H comb filter Y/C separator – multistandard colour decoder PAL/NTSC/SECAM including all substandards –...

  • Page 31: Tea6415C

    AK - 45 CHASSIS GNDD SUPPLY Digital Ground RSW2 GNDAB Range Switch 2 for Measurement ADC RSW1 GNDAB Range Switch 1 for Measurement ADC SENSE GNDAB Sense ADC Input GNDM SUPPLY Ground, MADC Input VERTQ Inverted Vertical Sawtooth Output VERT Vertical Sawtooth Output Vertical Parabola Output XREF...

  • Page 32: Pinning

    AK - 45 CHASSIS • 6.5dB gain between any input and output • 55dB crosstalk at 5mHz • Fully ESD protected 13.5.3.Pinning Input: Max: 2Vpp, Input Current: 1mA, Max: 3mA Data : Low level: -0.3V Max: 1.5V, High level: 3.0V Max: Vcc+0.5V Input: Max: 2Vpp, Input Current: 1mA, Max: 3mA...

  • Page 33: Tda7269A

    AK - 45 CHASSIS 13.7.TDA7269A 13.7.1.Description The TDA7269A is class AB dual Audio power amplifier assembled in the Multiwatt package, specially designed for high quality sound application as Hi-Fi music centers and stereo TV sets. 13.7.2.Features Wide Supply Voltage Range Up To ±20V Split Supply High Output Power 14 + 14W @THD =10%, R...

  • Page 34: Pin Configurations

    AK - 45 CHASSIS • 8-byte Page (1K, 2K), 16-byte Page (4K, 8K, 16K) Write Modes • Partial Page Writes are Allowed • Self-timed Write Cycle (10 ms max) • High-reliability – Endurance: 1 Million Write Cycles – Data Retention: 100 Years •...

  • Page 35: Mc44608

    AK - 45 CHASSIS Memory • Non-multiplexed 8-bit data and 16 … 20-bit address bus (ROMless Version) • Memory banking up to 1Mbyte (ROMless version) • Up to 128 Kilobyte on Chip Program ROM • Eight 16-bit data pointer registers (DPTR) •...

  • Page 36: General Features

    AK - 45 CHASSIS external components while offering a high flexibility and reliability. The device also features a very high efficiency stand–by management consisting of an effective Pulsed Mode operation. This technique enables the reduction of the stand–by power consumption to approximately 1W while delivering 300mW in a 150W SMPS.

  • Page 37: Tcet1102G

    AK - 45 CHASSIS 13.12.TCET1102G 13.12.1.Description The TCET110/ TCET2100/ TCET4100 consists of a phototransistor optically coupled to a gallium arsenide infrared-emitting diode in a 4-lead up to 16-lead plastic dual inline package. The elements are mounted on one lead frame using a coplanar technique, providing a fixed distance between input and output for highest safety requirements.

  • Page 38: Pinning

    AK - 45 CHASSIS SIF AGC for gain controlled SIF amplifier; single reference QSS mixer able to operate in high performance single reference QSS mode and in intercarrier mode, switchable via I C-bus AM demodulator without extra reference circuit Alignment-free selective FM-PLL demodulator with high linearity and low noise C-bus control for all functions C-bus transceiver with pin programmable Module Address (MAD).

  • Page 39: Ak45 Chassis Production Service Mode Adjustments

    AK - 45 CHASSIS 14.AK45 CHASSIS PRODUCTION SERVICE MODE ADJUSTMENTS 14.1.SERVICE MENU All system, geometry and white balance alignments are performed in production service mode. Before starting the production mode alignments, make sure that all manual adjustments are done correctly. To start production mode alignments enter the MAIN MENU and then press the digits 4, 7, 2 and 5 respectively or press MUTE and INFO buttons at the same time.
  • Page 40 AK - 45 CHASSIS Y-Delay SECAM Enter a SECAM B/G colour and black-white bar test pattern via RF. Adjust Y-Delay SECAM till the colour transients on the colour bar of the pattern become as sharper and colours between transients do not mix with each other as possible.
  • Page 41 AK - 45 CHASSIS The amplitude of R of RGB output can be adjusted with the drive parameter WDR. The amplitude of G of RGB output can be adjusted with the drive parameter WDG. The amplitude of B of RGB output can be adjusted with the drive parameter WDB. The DC offset values of R of RGB output can be adjusted with the cutoff parameter CR.
  • Page 42 AK - 45 CHASSIS PANORAMIC VERT_POS (Panoramic mode Vertical Position) It’s used to adjust the vertical position of panoramic mode. PANORAMIC VERT_AMPL (Panoramic mode Vertical Amplitude) It’s used to adjust the vertical amplitude of panoramic mode. PANORAMIC VERT_SCOR (Panoramic mode Vertical S-Correction) It’s used to adjust the vertical s-correction of panoramic mode.
  • Page 43 AK - 45 CHASSIS 16:9 ZOOM VERT_POS (16:9 Zoom mode Vertical Position) It’s used to adjust the vertical position of 16:9 zoom mode. 16:9 ZOOM VERT_AMPL (16:9 Zoom mode Vertical Amplitude) It’s used to adjust the vertical amplitude of 16:9 zoom mode. 16:9 ZOOM VERT_SCOR (16:9 Zoom mode Vertical S-Correction) It’s used to adjust the vertical s-correction of 16:9 zoom mode.
  • Page 44 AK - 45 CHASSIS OSD Position It’s used to adjust the horizontal position of the OSD. BCLTHR Beam current threshold BCLG Beam current loop gain ROTATION (TILT) This adjustment only works when the TV has rotation option. Change TILT by pressing Left/Right buttons to rotate the complete raster clock-wise and counter clock-wise depending on the CRT.
  • Page 45 AK - 45 CHASSIS POFS2 (RGB HORIZONTAL SHIFT) It’s used to adjust the horizontal position of RGB signal. REFERENCE WDR RED COOL The amplitude of R of RGB output can be adjusted with the drive parameter WDR for the colour temp of cool mode.
  • Page 46 AK - 45 CHASSIS FULL HORZ_POS It’s used to adjust the horizontal position of 16:9 mode (full mode). FULL HORZ_AMPL It’s used to adjust the horizontal amplitude of 16:9 mode (full mode). BRIGHT MODE BRIGHTNESS It’s used to adjust the brightness value of bright mode. BRIGHT MODE COLOUR It’s used to adjust the colour value of bright mode.
  • Page 47 AK - 45 CHASSIS 14:9 RGB CUSHION It’s used to adjust the cushion in 14:9 mode for RGB signals. PANORAMIC RGB HORIZONTAL AMPLITUDE It’s used to adjust the horizontal amplitude in panoramic mode for RGB signals. 16:9 RGB HORIZONTAL AMPLITUDE It’s used to adjust the horizontal amplitude in 16:9 mode for RGB signals.
  • Page 48 AK - 45 CHASSIS SHARP 11AK45 TVs ADJUST VALUES SETTING VALUES ADJUST THOMSON THOMSON THOMSON EXPLANATION 28'' 16:9 SF TV 28" 4:3 SF 32" 16:9 SF W66EJU023X215 A66EHJ13X01 W7EGV023X215 ADJUST 0 Not used ADJUST 1 Not used ADJUST 2 Not used...
  • Page 49 AK - 45 CHASSIS SHARP 11AK45 TVs ADJUST VALUES SETTING VALUES ADJUST THOMSON THOMSON THOMSON EXPLANATION 28'' 16:9 SF TV 28" 4:3 SF 32" 16:9 SF W66EJU023X215 A66EHJ13X01 W7EGV023X215 ADJUST 59 ZOOM 14:9 HORZ_AMPL ADJUST 60 CINEMA VERT_POS ADJUST 61...
  • Page 50 No use ADJUST 157 P P BRIGHTNESS ADJUST 158 P P CONTRAST X: WILL BE ADJUSTED AUTOMATICALLY ACCORDING TO THE SHARP SPECIFICATION. COLOR TEMPERATURE SHOULD BE (SHARP SPECIFICATION); WESTERN EUROPE EASTERN EUROPE FOR NORMAL (x, y) (290, 300) (304, 306)

  • Page 51: Options Menu

    AK - 45 CHASSIS 14.3.OPTIONS MENU Select the parameter by pressing up/down buttons. Adjust the parameter by pressing Left/Right buttons. . In OPTIONS menu, some of the changed parameters are not stored automatically. To store the adjusted parameters, you should turn off and on TV. OPTIONS...

  • Page 52: Option 3. (0X19) Video Processor Cathode Drive Level

    AK - 45 CHASSIS B4: x B3: x B2: x B1: LUMA 1 Luma Soft Limiter Enabled B0: BB 1 Blue Background Option Option 3. (0x19) Video Processor Cathode Drive Level B7: x B6: x B5: x B4: x B3: x B2: x B1: x B0: country =...

  • Page 53: Option 8. If Frequency

    AK - 45 CHASSIS Note 1: :Frequency Mode Frequency Menu Item available Frequency Menu Item not available Option 8. IF Frequency B7: x B6: x B5: IfI note 3 B4: IfD note 4 B3: IfM note 5 B2: Aps note 6 B1: Hp note 7 B0: Hue...

  • Page 54: Option 10. Scart, Combfilter, Teletext, Language

    AK - 45 CHASSIS Option 10. Scart, Combfilter, Teletext, Language B7: x B6: RGB note 2 B5: FAV = B4: AV2S B3: FSVHS = note 3 B2: BAV note 4 B1: Sc2 note 5 B0: BSVHS = note 6 Note 2 : RGB Menu Item active/inactive RGB Menu Item inactive RGB Menu Item active...

  • Page 55: Option 13. Pll Tuner Control 2 Mid Byte

    AK - 45 CHASSIS Option 13. PLL Tuner Control 2 Mid Byte b7 b6 b5 b4 b3 b2 b1 b0 Philips UV1316T MK3 0 0 0 0 0 0 1 0 Philips UV1316MK2 1 0 0 1 0 0 1 0 Alps TELE9X062A 0 0 0 0 0 0 1 0...

  • Page 56: Option 19. Pip Pll Tuner Control 1 Byte

    AK - 45 CHASSIS Temic 5001PH5-3X0003 0 0 0 0 0 0 0 0 Thomson CTT5020 0 0 0 1 1 0 1 1 (1B hex) Option 19. PIP PLL Tuner Control 1 Byte b7 b6 b5 b4 b3 b2 b1 b0 Philips UV1316MK2 1 0 0 0 1 1 1 0...

  • Page 57: Option 25. Pip Pll Tuner Vhf High - Uhf Crossover Low Byte

    AK - 45 CHASSIS Option 25. PIP PLL Tuner VHF HIGH – UHF Crossover Low Byte b7 b6 b5 b4 b3 b2 b1 b0 Philips UV1316MK2 1 1 1 0 0 0 1 0 (E2 hex) Alps TELE9X062A 0 0 0 0 0 0 0 0 Samsung TEXX2949PG28A 1 0 1 0 0 0 1 0 Siel...

  • Page 58: Option 30. Country

    AK - 45 CHASSIS Note 2: Tub : Tube size 16:9 Tube size 4:3 Tube size Note 3: Z.Def : Zoom Default Mode 16:9 mode default 4:3 mode default Option 30. Country B7: C4 = note 1 B6: C3 = note 1 B5: C2 = note 1...

  • Page 59: Option 33. Prescaler Msp Scart (Avl=Off)

    AK - 45 CHASSIS b7 b6 b5 b4 b3 b2 b1 b0 Prescaler MSP NICAM (AVL = OFF) 0 0 0 1 1 1 1 1 (if virtual Dolby option is available) Option 33. Prescaler MSP SCART (AVL=OFF) b7 b6 b5 b4 b3 b2 b1 b0 Prescaler MSP SCART (AVL = OFF) 0 0 0 0 1 1 0 0 b7 b6 b5 b4 b3 b2 b1 b0...

  • Page 60: Option 39. Personal Preference Equalizer Band 1

    AK - 45 CHASSIS Note 3: RGB Menu Item active/inactive RGB Menu Item inactive RGB Menu Item active Note 4: Equalizer available Equalizer not available Equalizer available Note 5: List Mode available List Mode not available List Mode available Note 6: Country Line available / Aps available or not Country Line not available / Aps not available Country Line available / Aps available...

  • Page 61: Option 47. Volume Offset Center

    AK - 45 CHASSIS Option 47. Volume Offset Center b7 b6 b5 b4 b3 b2 b1 b0 VOLUME OFFSET CENTER 0 0 0 0 0 1 1 0 Option 48. Volume Offset Rear b7 b6 b5 b4 b3 b2 b1 b0 VOLUME OFFSET REAR 0 0 0 0 0 1 1 0 Option 49.

  • Page 62: Option 55. Speaker Setup

    AK - 45 CHASSIS Option 55. Speaker Setup b7 b6 b5 b4 b3 b2 b1 b0 Speaker Setup (L/R, L/C/R, L/R/S, L/C/R/S) 0 0 0 0 0 0 0 0 Option 56. Audio Options Available Or Not Attention: All bits on the Option 56 must be the “0” for MONO TV SETS B7: Nicam note 7 B6: ASD...

  • Page 63: Option 58. Msp Audio Flags

    AK - 45 CHASSIS Note 1: b7 b6 b5 b4 b3 b2 b1 b0 MSP Stereo/Mono Threshold 0 0 0 1 1 0 0 1 Option 58. MSP Audio Flags B7: b7 = B6: b6 = B5: b5 = B4: Trs = note 1 B3: Trb = note 1...
  • Page 64 AK - 45 CHASSIS 00010100 = 9 Sec 00110100 = 17 Sec 00010101 = 9,25 Sec 00110101 = 17,25 Sec 00010110 = 9,5 Sec 00110110 = 17,5 Sec 00010111 = 9,75 Sec 00110111 = 17,75 Sec 00011000 = 10 Sec 00111000 = 18 Sec 00011001 =...
  • Page 65 AK - 45 CHASSIS Decimal - Binary Conversion Table Bit Position 76543210 76543210 00000000 00100000 00000001 00100001 00000010 00100010 00000011 00100011 00000100 00100100 00000101 00100101 00000110 00100110 00000111 00100111 00001000 00101000 00001001 00101001 00001010 00101010 00001011 00101011 00001100 00101100 00001101 00101101 00001110 00101110...

  • Page 66: Option Table Recommended Values

    AK - 45 CHASSIS 14.4.OPTION TABLE RECOMMENDED VALUES X listed in the option can be 0 or 1 OPTION 28" 4:3 MULTI 28" 16:9 MULTI 28" 16:9 PAL I X2 XXXXXX10 X2 XXXXXX10 X2 XXXXXX10 XX XXXXXXXX XX XXXXXXXX XX XXXXXXXX 23 001XXX11 23 001XXX11 23 001XXX11...
  • Page 67 AK - 45 CHASSIS 75 01110101 75 01110101 75 01110101 00 00000000 00 00000000 00 00000000 DE 11011110 DE 11011110 DE 11011110 19 00011001 19 00011001 19 00011001 00 00000000 00 00000000 00 00000000 64 01100100 64 01100100 64 01100100 10 00010000 10 00010000 10 00010000...

  • Page 68: Screen Adjustment (Fbt Screen)

    AK - 45 CHASSIS 14.5.SCREEN ADJUSTMENT (FBT SCREEN) SCREEN ADJUST From the option list change option 2 bit 6 from 0 to 1 for disabling vertical scan. Adjust horizontal line via screen adjust pot. as thin as possible. Then press 0 to leave service menu.

  • Page 69: Geometry Adjustment

    AK - 45 CHASSIS 14.6.GEOMETRY ADJUSTMENT 4:3 FORMATS 4:3 MODE 16:9 MODE...

  • Page 70: 16:9 Formats

    AK - 45 CHASSIS 16:9 FORMATS AUTO MODE...
  • Page 71 AK - 45 CHASSIS REGULAR MODE...
  • Page 72 AK - 45 CHASSIS ZOOM 14:9 MODE...
  • Page 73 AK - 45 CHASSIS ZOOM 16:9 MODE...
  • Page 74 AK - 45 CHASSIS SUBTITLE ZOOM MODE...
  • Page 75 AK - 45 CHASSIS FULL MODE...
  • Page 76 AK - 45 CHASSIS PANORAMIC MODE...

  • Page 77: Block Diagram

    AK - 45 CHASSIS 15. BLOCK DIAGRAM General Block Diagram of chassis 11AK45...

  • Page 78: Circuit Diagrams

    AK - 45 CHASSIS 16. CIRCUIT DIAGRAMS 16.1 Schematic Diagram of Video-IF Circuit...
  • Page 79 AK - 45 CHASSIS 16.1 Schematic Diagram of Video-IF Circuit...
  • Page 80 AK - 45 CHASSIS 16.2 Schematic Diagram of µ-Controller Circuit...
  • Page 81 AK - 45 CHASSIS 16.3 Schematic Diagram of Deflection Circuit 16.4 Schematic Diagram of Power Switch Circuit 11SW01-3...
  • Page 82 AK - 45 CHASSIS 16.5 Schematic Diagram of SMPS Circuit...
  • Page 83 AK - 45 CHASSIS 16.5 Schematic Diagram of SMPS Circuit...
  • Page 84 AK - 45 CHASSIS 16.6 Schematic Diagram of Sound Circuit...
  • Page 85 AK - 45 CHASSIS 16.6 Schematic Diagram of Sound Circuit...
  • Page 86 AK - 45 CHASSIS 16.7 Schematic Diagram of CRT Socket Circuit...
  • Page 87 AK - 45 CHASSIS 16.8 Schematic Diagrams of Control Panel Unit...
  • Page 88 AK - 45 CHASSIS 16.9 Schematic Diagram of Remote Control Circuit...

  • Page 89: How To Update The Technical Information

    AK - 45 CHASSIS 17. HOW TO UPDATE THE TECHNICAL INFORMATION 17.1 How to update the Technical Information appeared on this Service Manual (and relatives) 17.1.1. Web site: https://www.vestelservice.com 17.1.2.Select: Technical Support 17.1.3. Login: 101278 17.1.4. Password: SHPII278 By this access you can consult the latest schematic diagram or request the Parts Listing of a concrete Produc- tion Date / Serial Number.

  • Page 90: Code Bar Label Information

    AK - 45 CHASSIS 17.4 Code Bar Label Information Product Code From the beginning of September.2002, the production month and year will be indicated inside the box as shown. Year Month Year Consecutive number Consecutive number Year Batch number It is the code that indicates Vestel internal identification Product code: number of the complete TV set.
  • Page 91 AK - 45 CHASSIS Notes:...
  • Page 92 Technical information and Production: Vestel Electronik AS PRINTED BY: Think Ecology, please use Technical information re-issued: SHARP ELECTRONICA ESPAÑA S.A. Service Manual Group Engineering Dept. Polígono Industrial Can Sant Joan 08190 Sant Cugat del Vallès Barcelona...

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