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CONTENTS SAFETY PRECAUTIONS:................................................................................................................................................................ 2

· ·

TV set switched off........................................................................................................................ 2 Measurements ............................................................................................................................... 2

PERI-TV SOCKET.............................................................................................................................................................................. 2 · SCART 1 ......................................................................................................................................... 2 1. INTRODUCTION ........................................................................................................................................................................... 3

2. SMALL SIGNAL PART WITH STV2248 .................................................................................... 3
· · · · · · · · 2.1 Vision IF amplifier...................................................................................................................................................................3 2.2 QSS Sound circuit (QSS versions).......................................................................................................................................3 2.3 AM demodulator ...................................................................................................................................................................3 2.4 FM demodulator ....................................................................................................................................................................3 2.5 Video switch............................................................................................................................................................................4 2.6 Synchronisation circuit..........................................................................................................................................................4 2.7 Chroma and luminance processing......................................................................................................................................4 2.8 RGB output circuit ..................................................................................................................................................................5 · 2.9 µ-Controller................................................................................................................................. 6 3. TUNER.............................................................................................................................................................................................. 6 5. SOUND OUTPUT STAGE TDA7496.......................................................................................................................................... 7 6. VERTICAL OUTPUT STAGE WITH TDA8174A.................................................................................................................... 7 7. VIDEO OUTPUT AMPLIFIER STV5114................................................................................................................................... 7 8. POWER SUPPLY (SMPS)............................................................................................................................................................ 7 10. SERIAL ACCESS CMOS 8K EEPROM 24C08..................................................................................................................... 7 12. SAW FILTERS ............................................................................................................................................................................. 7 13. IC DESCRIPTIONS AND INTERNAL BLOCK DIAGRAM................................................................................................ 8 · ST92195.........................................................................................................................................................................................8 · STV224X .....................................................................................................................................................................................10 · UV1316, UV1336.........................................................................................................................................................................11 · TDA7496.....................................................................................................................................................................................12 · TDA8174.....................................................................................................................................................................................13 · STV5114 ......................................................................................................................................................................................13 · MC44608 .....................................................................................................................................................................................14 · 24CO8 ..........................................................................................................................................................................................15 · SAW FILTERS...........................................................................................................................................................................16 GENERAL BLOCK DIAGRAM of 11AK46.................................................................................................................................17 Service menu ....................................................................................................................................................................................18 Options................................................................................................................................................................................................19 Languages ..........................................................................................................................................................................................22

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DO NOT CHANGE ANY MODULE UNLESS THE SET IS SWITCHED OFF The mains supply part of the switch mode power supply's transformer is live. Use an isolating transformer. The receiver complies with the safety requirements. SAFETY PRECAUTIONS: The service of this TV set must be carried out by qualified persons only. Components marked with the warning symbol on the circuit diagram are critical for safety and must only be replaced with an identical component. - Power resistor and fused resistors must be mounted in an identical manner to the original component. - When servicing this TV, check that the EHT does not exceed 26kV. TV set switched off: Make short-circuit between HV-CRT clip and CRT ground layer. Short C809 before changing IC800 or other components in primary side of the SMPS part. Measurements: Voltage readings and oscilloscope traces are measured under the following conditions: Antenna signal's level is 60dB at the color bar pattern from the TV pattern generator. (100% white, 75% color saturation) Brightness, contrast, and color are adjusted for normal picture performance. Mains supply, 220VAC, 50Hz.

PERI-TV SOCKET

- The figure of PERI-TV socket-

SCART 1 PINING
1 Audio right output 2 Audio right input 3 Audio left output 4 Ground AF 5 Ground Blue 6 Audio left input 7 Blue input 8 AV switching input 9 Ground Green 10 11 Green input 12 13 Ground Red 14 Ground Blanking 15 Red input 16 Blanking input 17 Ground CVBS output 18 Ground CVBS input 0.5Vrms / 1K 0.5Vrms / 10K 0.5Vrms / 1K

0.5Vrms / 10K 0.7Vpp / 75ohm 0-12VDC /10K

0.7Vpp / 75ohm

0.7Vpp / 75ohm 0-0.4VDC, 1-3VDC / 75 Ohm

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19 CVBS output 20 CVBS input 21 Ground

1Vpp / 75ohm 1Vpp / 75ohm

1. INTRODUCTION 11AK46 is a 90° chassis capable of driving 14" tubes at the appropriate currents. The chassis is capable of operating in PAL, SECAM and NTSC standards. The sound system is capable of giving 3,5 watt RMS output into a load of 8 ohms. One page, 7 page SIMPLETEXT, TOPTEXT, FASTTEXT and US Closed Caption is also provided. The chassis is equipped with a 42 pin Scart connector. 2. SMALL SIGNAL PART WITH STV2248: STV2248 video processor is essential for realizing all small signal functions for a color TV receiver. 2.1 Vision IF amplifier3 The vision IF amplifier can demodulate signals with positive and negative modulation. The PLL demodulator is completely alignment-free. Although the VCO (Toko-coil) of the PLL circuit is external, yet the frequency is fixed to the required value by the original manufacturer thus the Toko-coil does not need to be adjusted manually. The setting of the various frequencies (38.9 or 45.75 MHz) can be made via changing the coil itself. 2.2 QSS Sound circuit (QSS versions) The sound IF amplifier is similar to the vision IF amplifier and has an external AGC de-coupling capacitor. The single reference QSS mixer is realised by a multiplier. In this multiplier the SIF signal is converted to the inter-carrier frequency by mixing it with the regenerated picture carrier from the VCO. The mixer output signal is supplied to the output via a high-pass filter for attenuation of the residual video signals. With this system a high performance hi-fi stereo sound processing can be achieved. The AM sound demodulator is realised by a multiplier. The modulated sound IF signal is multiplied in phase with the limited SIF signal. The demodulator output signal is supplied to the output via a low-pass filter for attenuation of the carrier harmonics. The AM signal is supplied to the output via the volume control. 2.3 AM DEMODULATOR The AM demodulated signal results from multiplying the input signal by itself, it is available on AM/FM output. 2.4 FM demodulator and audio amplifier : The FM demodulator is realized as narrow-band PLL with external loop filter, which provides the necessary selectivity without using an external band-pass filter. To obtain a good selectivity a linear phase detector and constant input signal amplitude are required. For this reason the inter-carrier signal is internally supplied to the demodulator via a gain controlled amplifier and AGC circuit. The nominal frequency of the demodulator is tuned to the required frequency (4.5/5.5/6.0/6.5 MHz) by means of a calibration circuit that uses the clock frequency of the µ-controller/Teletext decoder as a reference. The setting to the wanted frequency is realized by means of the software. It can be read whether the PLL frequency is inside or outside the window and whether the PLL is in lock or not. With this information it is possible to make an automatic search system for the incoming sound frequency. This is realized by means

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of a software loop that alternate the demodulator to various frequencies, then select the frequency on which a lock condition has been found. De-emphasis output signal amplitude is independent of the TV standard and has the same value for a frequency deviation of ±25 kHz at the 4.5 MHz standard and for a deviation of ±50 kHz for the other standards. When the IF circuit is switched to positive modulation the internal signal on de-emphasis pin is automatically muted. The audio control circuit contains an audio switch and volume control. In the mono inter-carrier sound versions the Automatic Volume Leveling (AVL) function can be activated. The pin to which the external capacitor has to be connected depends on the IC version. For the 90° types the capacitor is connected to the EW output pin (pin 20). When the AVL is active it automatically stabilizes the audio output signal to a certain level. 2.5 Video switching The video processor (STV2248C) has three CVBS inputs and two RGB inputs. The first CVBS input is used for external CVBS from SCART 1, the second is used for either CVBS or Y/C from BAV/FAV, and the third one is used for internal video. The selection between both external video inputs signals is realized by means of software and hardware switches. 2.6 Synchronization circuit The video processor (STV224X) performs the horizontal and vertical processing. The external horizontal deflection circuit is controlled via the Horizontal output pulse (HOUT). The vertical scanning is performed through an external ramp generator and a vertical power amplifier IC controlled by the Vertical output pulse (VOUT). The main components of the deflection circuit are: · PLL1: the first phase locked loop that locks the internal line frequency reference on the CVBS input signal. It is composed of an integrated VCO (12 MHz) that requires the chroma Reference frequency (4.43MHz or 3.58MHz crystal oscillator reference signal), a divider by 768, a line decoder, and a phase comparator. · PLL2: The second phase locked loop that controls the phase of the horizontal output (Compensation of horizontal deflection transistor storage time variation). Also the horizontal position adjustment is also performed in PLL2. · A vertical pulse extractor. · A vertical countdown system to generate all vertical windows (vertical synchronization window, frame blanking pulses, 50/60Hz identification window...). · Automatic identification of 50/60Hz scanning. · PLL1 time constant control. · Noise detector, video identification circuits, and horizontal coincidence detector. · Vertical output stage including de-interlace function, vertical position control. · Vertical amplitude control voltage output (combined with chroma reference output and Xtal 1 indication). 2.7 Chroma and luminance processing: The chroma decoder is able to demodulate PAL, NTSC and SECAM signals. The decoder dedicated to PAL and NTSC sub-carrier is based on a synchronous demodulator, and an Xtal PLL locked on the phase reference signal (burst). The SECAM demodulation is based on a PLL with automatic calibration loop. The color standard identification is based on the burst recognition. Automatic and forced modes can be selected through the I2C bus.

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NTSC tint, and auto flesh are controlled through I2C bus. Xtal PLL can handle up to 3 crystals to work in PAL M, PAL N and NTSC M for South America. ACC an ACC overload control the chroma sub-carrier amplitude within 26dB range. Both ACC s are based on digital systems and do not need external capacitor. All chroma filters are fully integrated and tuned via a PLL locked on Xtal VCO signal. A second PLL is used for accurate fine-tuning of the SECAM bell filter. This tuning is achieved during the frame blanking. An external capacitor memorizes the bell filter tuning voltage. A base-band chroma delay-line rebuilds the missing color line in SECAM and removes transmission phase errors in PAL. The base-band chroma delay line is clocked with 6MHz signal provided by the horizontal scanning VCO. The luminance processor is composed of a chroma trap filter, a luminance delay line, a peaking function with noise coring feature, a black stretch circuit. Trap filter and luminance delay lines are achieved with the use of bi-quad integrated filters, auto-aligned via a master filter phase locked loop. 2.8 RGB output circuit:
The video processor performs the R, G, B processing. There are three sources: 1. Y,U,V inputs (coming from luma part (Y output), and chroma decoder outputs (R-Y, B-Y outputs). 2. External R,G,B inputs from SCART (converted internally in Y,U,V), with also the possibility to input YUV signals from a DVD player, (YUV specification is Y=0.7 V PP , U= 0.7 V PP , V = 0.7V PP for 100% color bar). 3. Internal R,G,B inputs (for OSD and Teletext display) The main functions of the video part are: - Y,U,V inputs with integrated clamp loop, allowing a DC link with YUV outputs, - External RGB inputs (RGB to YUV conversion), or direct YUV inputs, - Y,U,V switches, - Contrast, saturation, brightness controls, - YUV to RGB matrix, - OSD RGB input stages (with contrast control), - RGB switches, - APR function, - DC adjustment of red and green channels, - Drive adjustments (R, G, B gain), - Digital automatic cut-off loop control, - Manual cut-off capability with I2C adjustments, - Half tone, oversize blanking, external insertion detection, blue screen, - Blanking control and RGB output stages.

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2.9 µ-Controller The ST92195 is the micro-controller, which is required for a color TV receiver. ST92195D1 is the version with one page Teletext and ST92195D7 is the one with 7 page Teletext. The IC has the supply voltages of 5 V and they are mounted in PSDIP package with 56 pins. µ-Controller has the following features · Display of the program number, channel number, TV Standard, analogue values, sleep timer, parental control and mute is done by OSD · Single LED for standby and on mode indication · System configuration with service mode · 3 level logic output for SECAM and Tuner band switching 3. TUNER PLL tuner is used as a tuner.

Channel coverage of UV1316: OFF-AIR CHANNELS CHANNELS FREQUENCY RANGE (MHz) E2 to C 48.25 to 82.25 (1) E5 to E12 175.25 to 224.25 E21 to E69 471.25 to 855.25 (2) CABLE CHANNELS CHANNELS FREQUENCY RANGE (MHz) S01 to S08 69.25 to 154.25 S09 to S38 161.25 to 439.25 S39 to S41 447.25 to 463.25

BAND Low Band Mid Band High Band

(1). Enough margin is available to tune down to 45.25 MHz. (2). Enough margin is available to tune up to 863.25 MHz.

Noise Typical Low band : 5dB Mid band : 5dB High band : 6dB

Max. 9dB 9dB 9dB

Gain Min. Typical Max. All channels : 38dB 44dB 52dB Gain Taper (of-air channels): 8dB

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Channel Coverage UV1336:

BAND Low Band Mid Band High Band

CHANNELS 2 to D E to PP QQ to 69

FREQUENCY RANGE (MHz) 55.25 to 139.25 145.25 to 391.25 397.25 to 801.25

Noise is typically 6dB for all channels. Gain is minimum 38dB and maximum 50dB for all channels. 5. SOUND OUTPUT STAGE TDA7496 TDA7496 is used as the AF output stereo amplifier . It is supplied by +20 VDC coming from a separate winding in the SMPS transformer. An output power of 3.5W (THD=0.5%) can be delivered into an 8ohm load. 6. VERTICAL OUTPUT STAGE WITH TDA8174A The TDA8174A is a power amplifier circuit for use in 90° and 110° colour deflection systems for 25 to 200 Hz field frequencies, and for 4: 3 and 16: 9 picture tubes. 7. VIDEO OUTPUT DISCRETE AMPLIFIERS There are three monolithic video output amplifiers. Each amplifier consist of two transistors which are TR_2SC2482 and BF421. 8. 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 produces 115V for FBT input, ±14V for audio output IC, S+3.3, S+5V and 8V for ST92195. 10. SERIAL ACCESS CMOS 8K EEPROM 24C08 The 24C08 is a 8Kbit electrically erasable programmable memory (EEPROM), organized as 4 blocks of 256*08 bits. The memory is compatible with the I˛C standard, two wire serial interface which uses a bidirectional data bus and serial clock. 12. SAW FILTERS Saw filter type: -66M: J1981 : K2958M: L9653M: G3967M: G9353M: K3958M: K9356M: Model: PAL SECAM B/G/D/K/I MONO PAL-I MONO PAL-SECAM B/G-D/K (38) MONO SECAM L/L' AM MONO (AUDIO IF) PAL-SECAM B/G STEREO (VIDEO IF) PAL-SECAM B/G STEREO (AUDIO IF) PAL-SECAM B/G/D/K/I/L/L' STEREO (VIDEO IF) PAL-SECAM B/G/D/K/I STEREO (AUDIO IF)

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K9656M: K3958M: K9356M: M1962M: M3953M: M9370M:

PAL-SECAM B/G/D/K/I/L/L' STEREO (AUDIO IF) PAL I NICAM (VIDEO IF) PAL I NICAM (AUDIO IF) PAL M/N NTSC M MONO PAL M/N NTSC M STEREO (VIDEO IF) PAL M/N NTSC M STEREO (AUDIO IF)

IC DESCRIPTIONS AND INTERNAL BLOCK DIAGRAM
· ST92195 · STV224X · TUNER (UV1316, UV1336) · TDA7496L · TDA8174A · STV5114 · MC44608 · 24C08 · SAW FILTERS G1975M, K2966M, K2962M, L9653M, G3962M, G9353M, K3958M, K9356M, K9656M, K6263K, K9652M, M1962M, M3953M, M9370M

ST92195 The ST92195 is a member of the ST9+ family of micro-controllers, completely developed and produced by SGS-THOMSON Microelectronics using a proprietary n-well HCMOS process. The nucleus of the ST92195 is the advanced Core, which includes the Central Processing Unit (CPU), the ALU, the Register File and the interrupt controller. The Core has independent memory and register buses to add to the efficiency of the code. A set of on-chip peripherals form a complete sys-tem for TV set and VCR applications: ­ Voltage Synthesis ­ VPS/WSS Slicer ­ Teletext Slicer ­ Teletext Display RAM ­ OSD Additional peripherals include a watchdog timer , a serial peripheral interface (SPI), a 16-bit timer and an A/D converter.

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STV224X Video processor:
The STV2246/2247/2248 are fully bus controlled ICs for TV including PIF, SIF, luma, Chroma and deflection processing. Used with a vertical frame booster (TDA1771 or TDA8174 for 90° chassis, STV9306 for 110° chassis), they allow the design of multi-standard (BGDKIMNLL, PAL/ SECAM/NTSC) sets with very few external components and no manual adjustments.

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UV1316, UV1336 General description of UV1316: The UV1316 tuner belongs to the UV 1300 family 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'. Features of UV1316: · Member of the UV1300 family small sized UHF/VHF tuners · Systems CCIR: B/G, H, L, L', I and I'; OIRT: D/K · Digitally controlled (PLL) tuning via I˛C-bus · Off-air channels, S-cable channels and Hyper-band · World standardized mechanical dimensions and world standard pinning · Complies to "CENELEC EN55020" and "EN55013" PINNING
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Gain control voltage (AGC) Tuning voltage I˛C-bus address select I˛C-bus serial clock I˛C-bus serial data Not connected PLL supply voltage ADC input Tuner supply voltage Symmetrical IF output 1 Symmetrical IF output 2

PIN VALUE
:4.0V, Max:4.5V :Max:5.5V :Min:-0.3V, Max:5.5V :Min:-0.3V, Max:5.5V :5.0V, Min:4.75V, Max:5.5V :33V, Min:30V, Max:35V

General description of UV1336: UV1336 series is developed for reception of channels broadcast in accordance with the M, N standard. Features of UV1336: · Global standard pinning · Integrated Mixer-Oscillator & PLL function · Conforms to CISPR 13, FCC and DOC (Canada) regulations · Low power consumption · Both Phono connector and `F' connector are available

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PINNING
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Gain control voltage Tuning voltage Address select Serial clock Serial data Not connected Supply voltage ADC input (optional) Tuning supply voltage Ground IF output

PIN VALUE
:4.0V, Max:4.5V Max:5.5V :Min:-0.3V, Max:5.5V :Min:-0.3V, Max:5.5V :5.0V, Min:4.75V, Max:5.5V :33V, Min:30V, Max:35V

TDA7496
DESCRIPTION The TDA7496 is a stereo 5+5W class AB power amplifier assembled in the @ Multiwatt 15 pack-age, specially designed for high quality sound, TV applications. Features of the TDA7496 include linear volume control, Stand-by and mute functions. -5+5W OUTPUT POWER -RL =? [email protected]= 10% VCC = 22V -ST-BY AND MUTE FUNCTIONS -LOW TURN-ON TURN-OFF POP NOISE -LINEAR VOLUME CONTROL DC COUPLED -WITH POWEROP. AMP. -NO BOUCHEROT CELL -NO ST-BY RC INPUT NETWORK -SINGLE SUPPLY RANGING UP TO 35V -SHORT CIRCUIT PROTECTION -THERMAL OVERLOAD PROTECTION -INTERNALLY FIXED GAIN -SOFT CLIPPING -VARIABLE OUTPUT AFTER VOLUME CON-TROL -CIRCUIT -MULTIWATT 15 PACKAGE

PINNING 1 2 3 4 5 6
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VAROUT_L

INL NC
12

7 8 9 10 11 12 13 14 15

SWR S_GNR STBY MUTE PW_GND OUTL VS OUTR PW1_GND

TDA8174AW Independent vertical amplitude adjustement. buffer stage. Power amplifier flyback generator thermal protection . Internal reference voltage decou-pling General Description: TDA8174A and TDA8174AWare a monolithic integrated circuits. It is a full performance and very efficient vertical deflection circuit intended for direct drive of a TV picture tube in Color and B & W television as well as in Monitor and Data displays. PINNING 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.

POWER OUTPUT OUTPUT STAGE Vs TRIGGER INPUT HEIGHT ADJUSTMENT VOLTAGE REF DECOUPLING GROUND RAMP GENERATOR BUFFER OUTPUT INVERTING INPUT Vs FLYBACK GENERATOR

STV5114 25MHz BANDWIDTH CROSSTALK : 55dB SHORT CIRCUIT TO GROUND OR VCC PRO-TECTED ANTI SATURATION GAIN CHANGING VIDEO SWITCHING

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DESCRIPTION This integrated circuit provides RGB switching al-lowing connections between peri TV plug, internal RGB generator and video processor in a TV set. The input signal black level is tied to the same reference voltageon each input in order to have no differential voltage when switching two RGB generators. An AC output signal higher than 2 Vpp makes gain going slowly down to 0dBto protect the TV set video amplifier from saturation. Fast blanking output is a logicial OR between FB1 (Pin 8) and FB2 (Pin 10).

PINNING 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. MC44608

PIN VALUE R1IN GND R2IN G1IN G2IN B1IN B2IN FB1IN FBOUT FB2+FBBIN BOUT FBGIN GOUT VCC FBRIN ROUT

General description: The MC44608 is a high performance voltage-mode controller designed for off­line converters. This high voltage circuit that integrates the start­up current source and the oscillator capacitor, requires few external components while offering a high flexibility and reliability. The device also features a very high efficiency stand­by management consisting of an effective Pulsed Mode operation. This technique enables the reduction of the stand­by power consumption to approximately 1W while delivering 300mW in a 150W SMPS. · Integrated start­up current source · Loss less off­line start­up · Direct off­line operation · Fast start­up General Features · Flexibility · Duty cycle control

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· On chip oscillator switching frequency 40, or 75kHz · Secondary control with few external components Protections · Maximum duty cycle limitation · Cycle by cycle current limitation · Demagnetization (Zero current detection) protection · "Over V CC protection" against open loop · Programmable low inertia over voltage protection against open loop · Internal thermal protection GreenLine Controller · Pulsed mode techniques for a very high efficiency low power mode · Lossless startup · Low dV/dT for low EMI radiations PINNING
1. 2. 3. 4. 5. 6. 7. 8. Demagnetization I Sense Control Input Ground Driver Supply voltage No connection Line Voltage

PIN VALUE
Zero cross detection voltage: 50 mV typ. Over current protection voltage 1V typ. Min: 7.5V Max.: 18V Iout 2A p-p during scan 1.2A p-p during flyback Output resistor 8.5 Ohm sink 15 Ohm source typ. Max:16V (Operating range 6.6V-13V) Min:50V Max:500V

24CO8 General description: The 24C16 is a 8Kbit electrically erasable programmable memory (EEPROM), organized as 4 blocks of 256 * 08 bits. The memory operates with a power supply value as low as 2.5V. Features: · Minimum 1 million ERASE/WRITE cycles with over 10 years data retention · Single supply voltage:4.5 to 5.5V · Two wire serial interface, fully I˛C-bus compatible · Byte and Multi-byte write (up to 8 bytes) · Page write (up to 16 bytes) · Byte, random and sequential read modes · Self timed programming cycle PINNING
1. 2. 3. 4. 5. 6. Write protect enable Not connected Chip enable input Ground Serial data address input/output Serial clock

PIN VALUE
:0V :0V :0V :0V :Input LOW voltage: :Input HIGH voltage: :Input LOW voltage: :Input HIGH voltage:

Min:-0.3V, Max:0.3*Vcc Min:0.7*Vcc, Max:Vcc+1 Min:-0.3V, Max:0.3*Vcc Min:0.7*Vcc, Max:Vcc+1

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7. 8.

Multibyte/Page write mode Supply voltage

:Input LOW voltage: :Input HIGH voltage: :Min:2.5V, Max:5.5V

Min:-0.3V, Max:0.5V Min:Vcc-0.5, Max:Vcc+1

Saw filter's list:
PAL BG PSBG DK PAL II' PSBGDKK' II' PSBGDKK' LL' VIDEO G1975M K2966M J1981 K2966M K2962M VIDEO G3967M K3958M K3958M K3958M AUDIO

MONO

L9653 AUDIO G9353M K9356 K9356 K9656

PAL BG PAL II' PSBGDKK' II' PSBGDKK' LL'

PINNING 1. Input 2. Input-ground 3. Chip carrier-ground 4. Output 5. Output

K9656M, L9653M
PINNING 1. Input 2. Switching Input 3. Chip carrier-ground 4. Output 5. Output

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GENERAL BLOCK DIAGRAM of 11AK46

SCART

F-AV

DVD MODULE
TDA7496
AUDIO SWITCHING R CIRCUITS PLL TUNER UV1316

L
R

AU. AMP

I

2

C

SERVICE CONNECTOR NVM

MONO IF ST92195 MICRO CONTROLLER STV2248C VIDEO PROCESSOR

RGB AMP

KEYPAD

VER AMP

IR SENSOR

TDA8174AW
SMPS

115V +12V AUD.

MC 44608

+8V +5V +5V St-by

VIDEO SWITCHING CIRCUITS HORIZONTAL DRIVE BU808DF

FBT

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DVD SCART1 FAV/BAV SVHS DVD POWER SUPPLY

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SIRA REGISTER PARAMETER NO 1 OSD OSD Horizontal Position 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 IF1 IF2 IF3 IF4 AGC VLIN VS1A VS1B VP1 HP1 VS2A VS2B VP2 HP2 RGBH WR WG WB BR BG APR FMP1 NIP1 SCP1 FMP2 NIP2 SCP2 F1H F1L F2H F2L BS1 BS2 BS3 CB OP1 OP2 OP3 OP4 OP5 TX1 IF Coarse Adjust IF Fine Adjust IF Coarse Adjust for L-Prime IF Fine Adjust for L-Prime Automatic Gain Control Vertical Linearity Vertical Size for 50 Hz / 4:3 Vertical Size for 50 Hz / 16:9 Vertical Position for 50 Hz Horizontal Position for 50 Hz Vertical Size for 60 Hz / 4:3 Vertical Size for 60 Hz / 16:9 Vertical Position for 60 Hz Horizontal Position for 60 Hz RGB Horizontal Shift Offset White Point Adjust for RED White Point Adjust for GREEN White Point Adjust for BLUE Bias for RED Bias for GREEN APR Threshold FM Prescaler when AVL is OFF NICAM Prescaler when AVL is OFF SCART Prescaler when AVL is OFF FM Prescaler when AVL is ON NICAM Prescaler when AVL is ON SCART Prescaler when AVL is ON High Byte of crossover frequency for VHF1-VHF3 Low Byte of crossover frequency for VHF1-VHF3 High Byte of crossover frequency for VHF3-UHF Low Byte of crossover frequency for VHF3-UHF Band Switch Byte for VHF1 Meaningful for only Band Switch Byte for VHF3 Meaningful for only Band Switch Byte for UHF Meaningful for only Control Byte Meaningful for only PLL Tuner Option 1 (see the Option List) Option 2 (see the Option List) Option 3 (see the Option List) Option 4 (see the Option List) Option 5 (see the Option List) Teletext Option 1 (see the Option List)

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OP1 ­ Peripheral Options BIT-7 BIT-6 BIT-5 BIT-4 BIT-3 BIT-2 BIT-1 BIT-0 NOT USED 1, Display "AV-3" as "F-AV" 0, Display "AV-3" as "B-AV" 1, Turn back TV mode after the last AV (with AV key) 0, Turn back first AV mode after the last AV 1, SVHS is available in AV key stream 0, SVHS is NOT available in AV key stream 1, RGB is available in AV key stream 0, RGB is NOT available in AV key stream 1, AV-3 is available in AV key stream 0, AV-3 is NOT available in AV key stream 1, DVD is available in AV key stream 0, DVD is NOT available in AV key stream 1, AV-1 is available in AV key stream 0, AV-1 is NOT available in AV key stream

OP2 ­ Reception Standard Options BIT-7 BIT-6 BIT-5 BIT-4 BIT-3 BIT-2 BIT-1 BIT-0 1, 3-button keyboard (V-, P+, V+) 0, 4/5 button keyboard (V-, V+, P-, P+, Menu) 1, L/L' is available 0, L/L' is not available 1, I is available 0, I is not available 1, DK is available 0, DK is not available 1, BG is available 0, BG is not available RESERVED (Keep as "0") RESERVED (Keep as "0") 1, WFI available 0, WFI NOT available

OP3 ­ Video Options BIT-7 BIT-6 Xtal Configuration 00, 1 Xtal PAL 4.43 01, 2 Xtal PAL/NTSC 4.43/3.58 10, 1 Xtal PAL/SEC/NTSC 4.43 11, 2 Xtal PAL/SEC/NTSC 4.43/3.58 1, Enable Blue back when no signal in AV modes 0, No Blue back in AV modes 1, White Insertion is ON 0, White Insertion is OFF 1, Blue Background when no signal 0, Disable Blue Background 1, Semi-transparent background for menu 0, Solid Menu background for menu

BIT-5 BIT-4 BIT-3 BIT-2

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BIT-1 BIT-0

1, Black Stretch is ON 0, Black Stretch is OFF 1, APR is ON 0, APR is OFF

OP4 ­ TV Features BIT-7 BIT-6 BIT-5 BIT-4 BIT-3 BIT-2 1, Headphone is available (for STEREO models) 0, Headphone is not available 1, Arabic/Persian ON 0, Arabic/Persian OFF 1, Hebrew ON 0, Hebrew OFF 1, Hotel Mode can be activated 0, Hotel Mode can not be activated 1, No Signal Timer is enabled 0, No Signal Timer is disabled
For PLL Tuner 1, Frequency based search 0, Channel table based search For VST Tuner 1, VST Band drive is negative logic (with transistors on the chassis) 0, VST Band drive is positive logic (without transistors on the chassis)

BIT-1 BIT-0

1, 3-band tuning (VHF1, VHF3, UHF) 0, 1-band tuning (only UHF) 1, Extra 200 msec blanking for VST 0, no-extra blanking

OP5 ­ Channel Tables BIT-7 BIT-6 BIT-5 BIT-4 BIT-3 BIT-2 BIT-1 BIT-0 1, Extra 150 msec blanking more for VST 0, no-extra blanking 1, "Programme" item in AUTOSTORE menu is visible 0, "Programme" item in AUTOSTORE menu is invisible NOT USED 1, French OS Channel Table is available 0, French OS Channel Table is not available 1, French Channel Table is available 0, French Channel Table is not available 1, England Channel Table is available 0, England Channel Table is not available 1, East Europe Channel Table is available 0, East Europe Channel Table is not available 1, West Europe Channel Table is available 0, West Europe Channel Table is not available

TX1 ­ Teletext Options BIT-7 BIT-6 NOT USED RESERVED (must be 0)

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BIT-5 BIT-4 BIT-3

5 4 3 Teletext Language Groups 000, Group 1 ­ West (English, French, Swedish, Czech, German, Portuguese, Italien, Rumanian) 001, Group 2 ­ West/East (Polish, French, Swedish, Czech, German, Serbian, Italien, Rumanian) 010, Group 3 ­ West/Turkish (English, French, Swedish, Turkish, German, Portuguese, Italien, Rumanian) 011, Group 4 ­ East/Cyrillic (English, Cyrillic, Swedish, Czech, German, Serbian, Lettish, Rumanian) 100, Group 5 ­ Arabic (English, French, Swedish, Turkish, German, Hebrew, Italien, Arabic)

BIT-2 BIT-1 BIT-0

2 1 0 Device type selection 000, EPROM M6 A 001, ROM H5 P 010, ROMLESS H5 P 011, EPROM M6 R 100, ROM M6 R 101, OSDEPROM M6 R 110, ROM M6 P 111, Read Auto Gain Table for the device from EEPROM

AK46/TITANIUM ­ Languages Groups
GROUP 1 - WEST
· · · · · · · · · · · · · · · · · · · · · · · · · · · · ENGLISH FRENCH SWEDISH CZECH GERMAN PORTUGUESE ITALIAN RUMANIAN POLISH FRENCH SWEDISH CZECH GERMAN SERBIAN ITALIAN RUMANIAN GROUP 3 ­ WEST / TURKEY ENGLISH FRENCH SWEDISH TURKISH GERMAN PORTUGUESE ITALIAN RUMANIAN ENGLISH CYRILLIC SWEDISH

GROUP 2 ­ WEST / EAST

GROUP 4 ­ EAST / CYRILLIC

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· · · · · · · · · · · · ·

CZECH GERMAN SERBIAN LETTISH RUMANIAN ENGLISH FRENCH SWEDISH TURKISH GERMAN HEBREW ITALIAN ARABIC

GROUP 5 - ARABIC

Using Coloured Buttons
RED : No function. GREEN : Is used to switch the aspect ratio between 4:3 and 16:9. YELLOW : Is used to prepare the system for screen-adjustments. BLUE : No function.

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