vestel 17MB15 Schematic

27” TFT TV

(17MB15)

SERVICE MANUAL

TABLE OF CONTENTS

INTRODUCTION ...................................................................................................................................... 1

2. TUNER......................................................................................................................................................1

3. IF PART (TDA9886) .................................................................................................................................1

4. MULTI STANDARD SOUND PROCESSOR............................................................................................ 2

5. VIDEO SWITCH TEA6415 ....................................................................................................................... 2

6. AUDIO AMPLIFIER STAGE WITH TPA3002D2 ...................................................................................... 2

7. MICROCONTROLLER ............................................................................................................................. 3

8. EEPROM 24C32....................................................................................................................................... 3

9. CLASS AB STEREO HEADPHONE DRIVER TDA1308 .........................................................................3

10. SAW FILTERS..........................................................................................................................................3

11. IC DESCRIPTIONS .................................................................................................................................. 4

11.1. TEA6415C ......................................................................................................................................... 5

11.1.1. General Description................................................................................................................. 5

11.1.2. Features .................................................................................................................................... 5

11.1.3. Pinning......................................................................................................................................5

11.2. 24LC02 .............................................................................................................................................. 6

11.2.1. Description................................................................................................................................6

11.2.2. Features .................................................................................................................................... 6

11.2.3. Pinning......................................................................................................................................6

11.3. TCET1102G Optocoupler.................................................................................................................. 7

11.3.1. General Description................................................................................................................. 7

11.3.2. General Features......................................................................................................................7

11.3.3. Applications.............................................................................................................................. 8

11.4. SVP-EX 52 ........................................................................................................................................8

11.4.1. General Description................................................................................................................. 8

11.5. TL431 ................................................................................................................................................8

11.5.1. General Description................................................................................................................. 8

11.5.2. Features..................................................................................................................................... 8

11.6. 24C32 ................................................................................................................................................ 8

11.6.1. General Description................................................................................................................. 8

11.6.2. Features .................................................................................................................................... 8

11.6.3. Pinning......................................................................................................................................9

11.7. 74LVC14A .......................................................................................................................................10

11.7.1. Description.............................................................................................................................. 10

11.7.2. Features .................................................................................................................................. 10

11.7.3. Pinning....................................................................................................................................10

11.8. TEA6420.......................................................................................................................................... 11

11.8.1. Features .................................................................................................................................. 11

11.8.2. Description.............................................................................................................................. 11

11.8.3. Pin Connections.....................................................................................................................11

11.9. CS4334............................................................................................................................................ 11

11.9.1. Features .................................................................................................................................. 11

11.9.2. General Description............................................................................................................... 11

11.9.3. Pin Descriptions.....................................................................................................................12

11.10. GAL16LV8 ....................................................................................................................................... 12

11.10.1. Description.............................................................................................................................. 12

11.10.2. Features .................................................................................................................................. 12

11.10.3. Pin connections...................................................................................................................... 13

11.11. K6R4008V1D................................................................................................................................... 13

11.11.1. Description.............................................................................................................................. 13

11.11.2. Features .................................................................................................................................. 13

11.11.3. Pin Description.......................................................................................................................14

11.12. L6562............................................................................................................................................... 14

11.12.1. Features .................................................................................................................................. 14

11.12.2. Description.............................................................................................................................. 14

11.12.3. Pin Connections and Descriptions ...................................................................................... 15

11.13. LM1117............................................................................................................................................ 15

TFT TV Service Manual 11/04/2006

11.13.1.

11.13.2. Features .................................................................................................................................. 15

11.13.3. Applications............................................................................................................................ 15

11.13.4. Connection Diagrams............................................................................................................ 16

11.14. LM317.............................................................................................................................................. 16

11.14.1. General Description............................................................................................................... 16

11.14.2. Features .................................................................................................................................. 16

11.14.3. Pin Description.......................................................................................................................16

11.15. LM809.............................................................................................................................................. 16

11.15.1. General Description............................................................................................................... 16

11.15.2. Features .................................................................................................................................. 16

11.15.3. Pinning....................................................................................................................................17

11.16. MSP34X1G...................................................................................................................................... 17

11.16.1. Introduction ............................................................................................................................ 17

11.16.2. Features .................................................................................................................................. 18

11.16.3. Pin connections...................................................................................................................... 18

11.17. M29W040B......................................................................................................................................20

11.17.1. Description.............................................................................................................................. 20

11.17.2. Features .................................................................................................................................. 20

11.17.3. Pin Descriptions.....................................................................................................................21

11.18. MC33202 ......................................................................................................................................... 21

11.18.1. General Description............................................................................................................... 21

11.18.2. Features .................................................................................................................................. 21

11.18.3. Pin Connections.....................................................................................................................21

11.19. PCF8574 .........................................................................................................................................22

11.19.1. General Description............................................................................................................... 22

11.19.2. Features .................................................................................................................................. 22

11.19.3. Pinning....................................................................................................................................22

11.20. PI5V330...........................................................................................................................................23

11.20.1. General Description............................................................................................................... 23

11.21. SDA55XX (SDA5550)......................................................................................................................23

11.21.1. General description ............................................................................................................... 23

11.22. Sil 9993............................................................................................................................................ 23

11.22.1. General Description............................................................................................................... 23

11.22.2. Features .................................................................................................................................. 24

11.23. NCP1014 ......................................................................................................................................... 24

11.23.1. General Description............................................................................................................... 24

11.23.2. Features .................................................................................................................................. 24

11.23.3. Pin Connections and Descriptions ...................................................................................... 25

11.24. SN74CB3Q3305..............................................................................................................................25

11.24.1. General Description............................................................................................................... 25

11.24.2. Features .................................................................................................................................. 25

11.24.3. Pin Connections.....................................................................................................................26

11.25. ST24LC21 .......................................................................................................................................26

11.25.1. Description.............................................................................................................................. 26

11.25.2. Features .................................................................................................................................. 26

11.25.3. Pin connections...................................................................................................................... 26

11.26. LM2576............................................................................................................................................ 27

11.26.1. General Description............................................................................................................... 27

11.26.2. Features .................................................................................................................................. 27

11.26.3. Pin description ....................................................................................................................... 27

11.27. TDA1308 .........................................................................................................................................27

11.27.1. General Description............................................................................................................... 27

11.27.2. Features .................................................................................................................................. 27

11.27.3. Pinning....................................................................................................................................28

11.28. TDA9886 .........................................................................................................................................28

11.28.1. General Description............................................................................................................... 28

11.28.2. Features .................................................................................................................................. 28

11.28.3. Pinning....................................................................................................................................28

11.29. TPA3002D2 ..................................................................................................................................... 29

General Description............................................................................................................... 15

TFT TV Service Manual 11/04/2006

11.29.1.

11.29.2. Features .................................................................................................................................. 29

11.29.3. Pinning....................................................................................................................................30

11.30. µPA672T.......................................................................................................................................... 31

11.30.1. General Description............................................................................................................... 31

11.30.2. Features .................................................................................................................................. 31

11.30.3. Pin Connection....................................................................................................................... 31

11.31. VPC3230D....................................................................................................................................... 31

11.31.1. General Description............................................................................................................... 31

11.31.2. Pin Connections and Short Descriptions............................................................................ 32

12. SERVICE MENU SETTINGS ................................................................................................................. 33

12.1. Picture Adjust ..................................................................................................................................33

12.2. SOUND1.......................................................................................................................................... 34

12.3. SOUND 2......................................................................................................................................... 34

12.4. Options ............................................................................................................................................ 34

12.5. TV Norm ..........................................................................................................................................35

12.6. Features ..........................................................................................................................................35

12.7. Teletext............................................................................................................................................35

12.8. Source ............................................................................................................................................. 35

12.9. Menu Languages 1 & 2 ................................................................................................................... 35

13. BLOCK DIAGRAM....................................................................................................................................1

14. CIRCUIT DIAGRAM .................................................................................................................................1

15. CIRCUIT DIAGRAMS...............................................................................................................................3

General Description............................................................................................................... 29

iii

TFT TV Service Manual 11/04/2006

1. INTRODUCTION

27” TFT TV is a progressive TV control system with built-in de-interlacer and scaler. It uses a

1366*768 panel with 16:9 aspect ratio. The TV 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’ including German and NICAM stereo. Sound system output is supplying 2x8W (10%THD) for stereo 8 speakers. The chassis is equipped with many inputs and outputs allowing it to be used as a center of a media system.

It supports following peripherals: 2 SCART sockets 1 AV input (CVBS + Stereo Audio) 1 SVHS input 1 Stereo Headphone input 1 Component input (YPbPr + Stereo Audio) 1 D-Sub 15 PC input 1 HDMI input 1 Stereo audio input for PC Audio line out is taken from the scart with given scart-to-line out connector

2. TUNER

The tuners used in the design are combined VHF, UHF tuners suitable for CCIR systems B/G, H, L, L’, I/I’, and D/K. The tuning is available through the digitally controlled I info on one of the Tuners in use.

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’. The low IF output impedance has been designed for direct drive of a wide variety of SAW filters with sufficient suppression of triple transient.

Features of UV1316:

1. Member of the UV1300 family small sized UHF/VHF tuners

2. Systems CCIR: B/G, H, L, L’, I and I’; OIRT: D/K

3. Digitally controlled (PLL) tuning via I

4. Off-air channels, S-cable channels and Hyper band

5. World standardised mechanical dimensions and world standard pinning

6. Compact size

7. Complies to “CENELEC EN55020” and “EN55013”

Pinning:

1. Gain control voltage (AGC) : 4.0V, Max: 4.5V

2. Tuning voltage

3. I²C-bus address select : Max: 5.5V

4. I²C-bus serial clock : Min:-0.3V, Max: 5.5V

5. I²C-bus serial data : Min:-0.3V, Max: 5.5V

6. Not connected

7. PLL supply voltage : 5.0V, Min: 4.75V, Max: 5.5V

8. ADC input

9. Tuner supply voltage : 33V, Min: 30V, Max: 35V

10. Symmetrical IF output 1

11. Symmetrical IF output 2

C-bus

C bus (PLL). Below you will find

3. IF PART (TDA9886)

The TDA9886 is an alignment-free multistandard (PAL, SECAM and NTSC) vision and sound IF signal PLL. The following figure shows the simplified block diagram of the integrated circuit. The integrated circuit comprises the following functional blocks: VIF amplifier, Tuner and VIF-AGC, VIF-AGC detector, Frequency Phase-Locked Loop (FPLL) detector, VCO and divider, Digital acquisition help and AFC, Video demodulator and amplifier, Sound carrier trap, SIF amplifier, SIF-AGC detector, Single reference QSS mixer, AM demodulator, FM demodulator and

TFT TV Service Manual 11/04/2006

acquisition help, Audio amplifier and mute time constant, I²C-bus transceivers and MAD (module address), Internal voltage stabilizer

4. MULTI STANDARD SOUND PROCESSOR

The MSP34x1G family of single-chip Multistandard Sound Processors covers the sound processing of all analog TV-Standards worldwide, as well as the NICAM digital sound standards. The full TV sound processing, starting with analog sound IF signal-in, down to processed analog AF-out, is performed on a single chip. These TV sound processing ICs include versions for processing the multichannel television sound (MTS) signal conforming to the standard recommended by the Broadcast Television Systems Committee (BTSC). The DBX noise reduction, or alternatively, Micronas Noise Reduction (MNR) is performed alignment free. Other processed standards are the Japanese FM-FM multiplex standard (EIA-J) and the FM Stereo Radio standard. Current ICs have to perform adjustment procedures in order to achieve good stereo separation for BTSC and EIA-J. The MSP34x1G has optimum stereo performance without any adjustments.

5. VIDEO SWITCH TEA6415

In case of three or more external sources are used, the video switch IC TEA6415 is used. The main function of this device is to switch 8 video-input sources on the 6 outputs. Each output can be switched on only one of each input. On each input an alignment of the lowest level of the signal is made (bottom of sync. top for CVBS or black level for RGB signals). Each nominal gain between any input and output is 6.5dB.For D2MAC or Chroma signal the alignment is switched off by forcing, with an external resistor bridge, 5VDC on the input. Each input can be used as a normal input or as a MAC or Chroma input (with external Resistor Bridge). All the switching possibilities are changed through the BUS. Driving 75ohm load needs an external resistor. It is possible to have the same input connected to several outputs.

6. AUDIO AMPLIFIER STAGE WITH TPA3002D2

The TPA3004D2 is a 9-W (per channel) efficient, Class-D audio amplifier for driving bridged-tied stereo speakers. The TPA3004D2 can drive stereo speakers as low as 8 . The high efficiency of the TPA3004D2 eliminates the need for external heatsinks when playing music. Stereo speaker volume is controlled with a dc voltage applied to the volume control terminal offering a range of gain from –40 dB to 36 dB. Line outputs, for driving external headphone amplifier inputs, are also dc voltage controlled with a range of gain from –56 dB to 20 dB. An integrated 5-V regulated supply is provided for powering an external headphone amplifier.

TFT TV Service Manual 11/04/2006

7. MICROCONTROLLER

The Micronas SDA 55xx TV microcontroller is dedicated to 8 bit applications for TV control and provides dedicated graphic features designed for modern low class to mid range TV sets. The SDA 55xx provides also an integrated general purposefully 8051-compatible microcontroller with specific hardware features especially suitable in TV sets. The microcontroller core has been enhanced to provide powerful features such as memory banking, data pointers and additional interrupts, etc. The internal XRAM consists of up to 16 kBytes. The microcontroller provides an internal ROM of up to 128 kBytes. ROMless versions can access up to 1 MByte of external RAM and ROM. The 8-bit microcontroller runs at 33.33 MHz internal clock. SDA 55xx is realized in 0.25 micron technology with

2.5 V supply voltage for the core and 3.3 V for the I/O port pins to make them TTL compatible. Based on the SDA 55xx microcontroller the MINTS software package was developed and provides dedicated device drivers for many Micronas video & audio products and includes a full blown TV control SW for the PEPER application chassis. The SDA 55xx is also supported with powerful design tools like emulators from Hitex, Kleinhenz, iSystems, the Keil C51 Compiler and TEDIpro OSD development SW by Tara Systems.

8. EEPROM 24C32

The Microchip Technology Inc. 24C32 is a 4Kx8 (32 Kbit) Electrically Erasable PROM. This device has been developed for advanced, low power applications such as personal communications or data acquisition. The 24C32 features an input cache for fast write loads with a capacity of eight 8-byte pages, or 64 bytes. It also features a fixed 4K-bit block of ultra-high endurance memory for data that changes frequently. The 24C32 is capable of both random and sequential reads up to the 32K boundary. Functional address lines allow up to 8 - 24C32 devices on the same bus, for up to 256K bits address space. Advanced CMOS technology makes this device ideal for low-power non-volatile code

and data applications.

9. CLASS AB STEREO HEADPHONE DRIVER TDA1308

The TDA1308 is an integrated class AB stereo headphone driver contained in a DIP8 plastic package. The device is fabricated in a 1 mm CMOS process and has been primarily developed for portable digital audio applications.

10. SAW FILTERS

K9656M: Standard:

• B/G

• D/K

• I

• L/L’

Features

• TV IF audio filter with two channels

• Channel 1 (L’) with one pass band for sound carriers at 40.40 MHz (L’) and 39.75 MHz (L’- NICAM)

• Channel 2 (B/G, D/K, L, I) with one pass band for sound carriers between 32.35 MHz and 33.40 MHz

Terminals

• Tinned CuFe alloy

Pin configuration

1 Input 2 Switching input 3 Chip carrier - ground 4 Output 5 Output

K3958M: Standard:

• B/G

• D/K

• I

• L/L’

TFT TV Service Manual 11/04/2006

Features

• TV IF video filter with Nyquist slopes at 33.90 MHz and 38.90 MHz

• Constant group delay

Terminals

Tinned CuFe alloy

Pin configuration

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

11. IC DESCRIPTIONS

TEA6415C 24LC02 4MX32 DDR SDRAM (128M) TCET1102G OPTOCOUPLER SVP-EX 52 TL431 24C32 74LVC14A TEA6420D CS4334 GAL16LV8 K6R4008V1 L6562D LM1086 LM1117 LM317T LM809 MSP3410G M29W040B MC33202 PCF8574 PI5V330 SDA5550 SG3525 SII9993 NCP1014 SN74CB3Q3305 ST24LC21 LM2576 MC34063 TDA1308 TDA9886T TPA3002D2 µPA672T VPC3230D

TFT TV Service Manual 11/04/2006

11.1. TEA6415C

11.1.1. General Description

The main function of the IC is to switch 8 video input sources on 6 outputs. Each output can be switched on only one of each input. On each input an alignment of the lowest level of the signal is made (bottom of synch. top for CVBS or black level for RGB signals). Each nominal gain between any input and output is 6.5dB. For D2MAC or Chroma signal the alignment is switched off by forcing, with an external resistor bridge, 5 V

DC on the input. Each input can be used as a normal input or as a MAC or

Chroma input (with external resistor bridge). All the switching possibilities are changed through the BUS. Driving 75 load needs an external transistor. It is possible to have the same input connected to several outputs. The starting configuration upon power on (power supply: 0 to 10V) is undetermined. In this case, 6 words of 16 bits are necessary to determine one configuration. In other case, 1 word of 16 bits is necessary to determine one configuration.

11.1.2. Features

• 20MHz Bandwidth

• Cascadable with another TEA6415C (Internal address can be changed by pin 7 voltage)

• 8 Inputs (CVBS, RGB, MAC, CHROMA,...)

• 6 Outputs

• Possibility of MAC or chroma signal for each input by switching-off the clamp with an external resistor bridge

• Bus controlled

• 6.5dB gain between any input and output

• 55dB crosstalk at 5mHz

• Fully ESD protected

11.1.3. Pinning

1. Input : Max : 2Vpp, Input Current: 1mA, Max : 3mA

2. Data : Low level : -0.3V Max: 1.5V, High level : 3.0V Max : Vcc+0.5V

3. Input : Max : 2Vpp, Input Current: 1mA, Max : 3mA

4. Clock : Low level : -0.3V Max: 1.5V, High level : 3.0V Max : Vcc+0.5V

5. Input : Max : 2Vpp, Input Current: 1mA, Max : 3mA

6. Input : Max : 2Vpp, Input Current: 1mA, Max : 3mA

7. Prog

8. Input : Max : 2Vpp, Input Current: 1mA, Max: 3mA

9. Vcc : 12V

10. Input : Max : 2Vpp, Input Current: 1mA, Max : 3mA

11. Input : Max : 2Vpp, Input Current: 1mA, Max : 3mA

12. Ground

13. Output : 5.5Vpp, Min : 4.5Vpp

14. Output : 5.5Vpp, Min : 4.5Vpp

15. Output : 5.5Vpp, Min : 4.5Vpp

16. Output : 5.5Vpp, Min : 4.5Vpp

17. Output : 5.5Vpp, Min : 4.5Vpp

18. Output : 5.5Vpp, Min : 4.5Vpp

19. Ground

20. Input : Max : 2Vpp, Input Current : 1mA, Max : 3mA

TFT TV Service Manual 11/04/2006

11.2. 24LC02

11.2.1. Description

The Microchip Technology Inc. 24AA02/24LC02B (24XX02*) is a 2 Kbit Electrically Erasable PROM. The device is organized as one block of 256 x 8-bit memory with a 2-wire serial interface. Low-voltage design permits operation down to 1.8V, with standby and active currents of only 1µA and 1mA, respectively. The 24XX02 also has a page write capability for up to 8 bytes of data.

11.2.2. Features

• Single supply with operation down to 1.8V

• Low-power CMOS technology

-1mA active current typical

-1µA standby current typical (I-temp)

• Organized as 1 block of 256 bytes (1 x 256 x 8)

• 2-wire serial interface bus, I

C™ compatible

• Schmitt Trigger inputs for noise suppression

• Output slope control to eliminate ground bounce

• 100 kHz (24AA02) and 400 kHz (24LC02B) compatibility

• Self-timed write cycle (including auto-erase)

• Page write buffer for up to 8 bytes

• 2ms typical write cycle time for page write

• Hardware write-protect for entire memory

• Can be operated as a serial ROM

• Factory programming (QTP) available

• ESD protection > 4,000V

• 1,000,000 erase/write cycles

• Data retention > 200 years

• 8-lead PDIP, SOIC, TSSOP and MSOP packages

• 5-lead SOT-23 package

• Pb-free finish available

• Available for extended temperature ranges:

-Industrial (I): -40°C to +85°C

-Automotive (E): -40°C to +125°C

11.2.3. Pinning

TFT TV Service Manual 11/04/2006

11.3. TCET1102G Optocoupler

11.3.1. General Description

The TCET110. / TCET2100/ TCET4100 consist 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.

11.3.2. General Features

• CTR offered in 9 groups

• Isolation materials according to UL94-VO

• Pollution degree 2

(DIN/VDE 0110 / resp. IEC 664)

• Climatic classification 55/100/21 (IEC 68 part 1)

• Special construction:

• Therefore, extra low coupling capacity of typical 0.2 pF, high Common Mode Rejection

• Low temperature coefficient of CTR

• G=Leadform10.16mm; provides creepage distance > 8 mm,

for TCET2100/ TCET4100 optional;

• suffix letter 'G' is not marked on the optocoupler

• Coupling System U

TFT TV Service Manual 11/04/2006

11.3.3. Applications

Circuits for safe protective separation against electrical shock according to safety class II (reinforced isolation): For appl. class I – IV at mains voltage 300 V For appl. class I – III at mains voltage 600 V

According to VDE 0884, table 2, suitable for: Switch-mode power supplies, line receiver, computer

peripheral interface, microprocessor system interface.

11.4. SVP-EX 52

11.4.1. General Description

SVP EX52 supports two CVBS and one Svideo,two HD YPbPr component or PC RGB input and one 24-bit digital input ports.Supports HD YPbPr de-interlacing mode and 3D-comb video mode. LVDS "single" port is built-in, supporting output resolution up to SXGA, 1280x1024x60P.

11.5. TL431

11.5.1. General Description

The TL431/TL431Aare three-terminal adjustable regulator series with a guaranteed thermal stability over applicable temperature ranges. The output voltage may be set to any value between Vref (approximately 2.5 volts) and 36 volts with two external resistors These devices have a typical dynamic output impedance of 0.2W Active output circuitry provides a very sharp turn-on characteristic, making these devices excel lent replacement for zener diodes in many applications.

11.5.2. Features

• Programmable Output Voltage to 36 Volts

• Low Dynamic Output Impedance 0.20 Typical

• Sink Current Capability of 1.0 to 100mA

• Equivalent Full-Range Temperature Coefficient of

50ppm/°C Typical

• Temperature Compensated For Operation Over Full Rated Operating Temperature Range

• Low Output Noise Voltage

• Fast Turn-on Response

11.6. 24C32

11.6.1. General Description

The Microchip Technology Inc. 24C32 is a 4K x 8 (32K bit) Serial Electrically Erasable PROM. This device has been developed for advanced, low power applications such as personal communications or data acquisition. The 24C32 features an input cache for fast write loads with a capacity of eight 8-byte pages, or 64 bytes. It also features a fixed 4K-bit block of ultra-high endurance memory for data that changes frequently. The 24C32 is capable of both random and sequential reads up to the 32K boundary. Functional address lines allow up to 8 - 24C32 devices on the same bus, for up to 256K bits address space. Advanced CMOS technology makes this device ideal for low-power non-volatile code and data applications.

11.6.2. Features

• Voltage operating range: 4.5V to 5.5V

- Peak write current 3 mA at 5.5V

- Maximum read current 150µA at 5.5V

- Standby current 1µA typical

• Industry standard two-wire bus protocol, I

C™ compatible

-Including 100 kHz and 400 kHz modes

• Self-timed write cycle (including auto-erase)

• Power on/off data protection circuitry

• Endurance:

TFT TV Service Manual 11/04/2006

- 10,000,000 Erase/Write cycles guaranteed for High Endurance Block

- 10,000,000 E/W cycles guaranteed for Standard Endurance Block

• 8 byte page, or byte modes available

• 1 page x 8 line input cache (64 bytes) for fast write loads

• Schmitt trigger, filtered inputs for noise suppression

• Output slope control to eliminate ground bounce

• 2 ms typical write cycle time, byte or page

• Up to 8 chips may be connected to the same bus for up to 256K bits total memory

• Electrostatic discharge protection > 4000V

• Data retention > 200 years

• Temperature ranges:

-Commercial (C): 0°C to +70°C

-Industrial (I): -40°C to +85°C

11.6.3. Pinning

PIN Function Table

PIN DESCRIPTIONS A0, A1, A2 Chip Address Inputs

The A0...A2 inputs are used by the 24C32 for multiple device operation and conform to the two-wire bus standard. The levels applied to these pins define the address block occupied by the device in the address map. A particular device is selected by transmitting the corresponding bits (A2, A1, and A0) in the control byte.

SDA Serial Address/Data Input/Outpu

This is a bidirectional pin used to transfer addresses and data into and data out of the device. It is an open drain terminal; therefore the SDA bus requires a pull-up resistor to VCC (typical 10KQ for 100 kHz, 1KQ for 400 kHz).

TFT TV Service Manual 11/04/2006

For normal data transfer SDA is allowed to change only during SCL low. Changes during SCL high are reserved for indicating the START and STOP conditions.

SCL Serial Clock

This input is used to synchronize the data transfer from and to the device.

11.7. 74LVC14A

11.7.1. Description

The 74LVC14A is a high-performance, low-power, low-voltage, Si-gate CMOS device, superior to most advanced CMOS compatible TTL families. Inputs can be driven from either 3.3 or 5V devices. This feature allows the use of these devices as translators in a mixed 3.3 and 5V environment. The 74LVC14A provides six inverting buffers with Schmitt-trigger action. It is capable of transforming slowly changing input signals into sharply defined, jitter-free output signals.

11.7.2. Features

• Wide supply voltage range from 1.2 to 3.6 V

• CMOS low power consumption

• Direct interface with TTL levels

• Inputs accept voltages up to 5.5 V

• Complies with JEDEC standard no.8-1A

• ESD protection: HBM EIA/JESD22-A114-A exceeds 2000V MM EIA/JESD22-A115-A exceeds 200V.

• Specified from -40 to +85C and -40 to +125C.

11.7.3. Pinning

TFT TV Service Manual 11/04/2006

11.8. TEA6420

11.8.1. Features

• 5 Stereo Inputs

• 4 Stereo Outputs

• Gain Control 0/2/4/6dB/Mute for each Output

• Cascadable (2 different addresses)

• Serial Bus Controlled

• Very low Noise

• Very low Distortion

11.8.2. Description

The TEA6420 switches 5 stereo audio inputs on4stereo outputs. All the switching possibilities are changed through the I

C bus.

11.8.3. Pin Connections

11.9. CS4334

11.9.1. Features

• Complete Stereo DAC System: Interpolation, D/A, Output Analog Filtering

• 24-Bit Conversion

• 96 dB Dynamic Range

• -88 dB THD+N

• Low Clock Jitter Sensitivity

• Single +5V Power Supply

• Filtered Line Level Outputs

• On-Chip Digital De-emphasis

• Popgaurd® Technology

• Functionally Compatible with CS4330/31/33

11.9.2. General Description

The CS4334 family members are complete, stereo digital-to-analog output systems including interpolation, 1-bitD/A conversion and output analog filtering in an 8-pinpackage. The CS4334/5/6/7/8/9 support all major audio data interface formats, and the individual devices differ only in the supported interface format. The CS4334 family is based on delta-sigma modulation, where the modulator output controls the reference voltage input to an ultra-linear analog low-pass filter. This architecture allows for infinite adjustment of sample rate between 2 kHz and 100 kHz simply by changing the master clock frequency. The CS4334 family contains on-chip digital de-emphasis, operates from a single +5V power supply, and requires minimal support circuitry. These features are ideal for set-top boxes, DVD players, SVCD players, and A/V receivers.

TFT TV Service Manual 11/04/2006

11.9.3. Pin Descriptions

11.10. GAL16LV8

11.10.1. Description

The GAL16LV8D, at 3.5 ns maximum propagation delay time, provides the highest speed performance available in the PLD market. The GAL16LV8C can interface with both 3.3V and 5Vsignal levels. The GAL16LV8 is manufactured using Lattice Semiconductor's advanced 3.3V E combines CMOS with Electrically Erasable (E

) floating gate technology. High speed erase times

CMOS process, which

(<100ms) allow the devices to be reprogrammed quickly and efficiently. The 3.3V GAL16LV8 uses the same industry standard 16V8 architecture as its 5V counterpart and supports all architectural features such as combinatorial or registered macrocell operations. Unique test circuitry and reprogrammable cells allow complete AC, DC, and functional testing during manufacture. As a result, Lattice Semiconductor delivers 100% field programmability and functionality of all GAL products. In addition, 100 erase/write cycles and data retention in excess of 20 years are

specified.

11.10.2. Features

• HIGH PERFORMANCE E2CMOS® TECHNOLOGY

- 3.5 ns Maximum Propagation Delay

- Fmax = 250 MHz

- 2.5 ns Maximum from Clock Input to Data Output

- UltraMOS® Advanced CMOS Technology

• 3.3V LOW VOLTAGE 16V8 ARCHITECTURE

- JEDEC-Compatible 3.3V Interface Standard

- 5V Compatible Inputs

- I/O Interfaces with Standard 5V TTL Devices (GAL16LV8C)

• ACTIVE PULL-UPS ON ALL PINS (GAL16LV8D Only)

• E2 CELL TECHNOLOGY

- Reconfigurable Logic

- Reprogrammable Cells

- 100% Tested/100% Yields

- High Speed Electrical Erasure (<100ms)

- 20 Year Data Retention

• EIGHT OUTPUT LOGIC MACROCELLS

- Maximum Flexibility for Complex Logic Designs

- Programmable Output Polarity

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• PRELOAD AND POWER-ON RESET OF ALL REGISTERS

- 100% Functional Testability

• APPLICATIONS INCLUDE:

- Glue Logic for 3.3V Systems

- DMA Control

- State Machine Control

- High Speed Graphics Processing

- Standard Logic Speed Upgrade

• ELECTRONIC SIGNATURE FOR IDENTIFICATION

• LEAD-FREE PACKAGE OPTIONS

11.10.3. Pin connections

11.11. K6R4008V1D

11.11.1. Description

The K6R4008V1D is a 4,194,304-bit high-speed Static Random Access Memory organized as 524,288 words by 8 bits. TheK6R4008V1D uses 8 common input and output lines and has an output enable pin which operates faster than address access time at read cycle. The device is fabricated using SAMSUNGs advanced CMOS process and designed for high-speed circuit technology. It is particularly well suited for use in high-density high-speed system applications. The K6R4008V1D is packaged in a 400 mil 36-pin plastic SOJ and 44-pin plastic TSOP type II.

11.11.2. Features

• Fast Access Time 8, 10ns(Max.)

• Low Power Dissipation

- Standby (TTL) : 20mA(Max.)

(CMOS) : 5mA(Max.)

- Operating K6R4008V1D-08 : 80mA(Max.)

K6R4008V1D-10 : 65mA(Max.)

• Single 3.3 ±0.3V Power Supply

• TTL Compatible Inputs and Outputs

• Fully Static Operation

- No Clock or Refresh required

• Three State Outputs

• Center Power/Ground Pin Configuration

• Standard Pin Configuration K6R4008V1D-J : 36-SOJ-400 K6R4008V1D-K : 36-SOJ-400(Lead-Free) K6R4008V1D-T : 44-TSOP2-400BF K6R4008V1D-U : 44-TSOP2-400BF(Lead-Free)

• Operating in Commercial and Industrial Temperature range.

TFT TV Service Manual 11/04/2006

11.11.3. Pin Description

11.12. L6562

11.12.1. Features

• TRANSITION-MODE CONTROL OF PFC PRE-REGULATORS

• PROPRIETARY MULTIPLIER DESIGN FOR MINIMUM THD OF AC INPUT CURRENT

• VERY PRECISE ADJUSTABLE OUTPUT OVERVOLTAGE PROTECTION

• ULTRA-LOW (70µA) START-UP CURRENT

• LOW (4 mA) QUIESCENT CURRENT

• EXTENDED IC SUPPLY VOLTAGE RANGE

• ON-CHIP FILTER ON CURRENT SENSE

• DISABLE FUNCTION

• 1% (@ Tj = 25 °C) INTERNAL REFERENCE VOLTAGE

11.12.2. Description

The L6562 is a current-mode PFC controller operating in Transition Mode (TM). Pin-to-pin compatible with the predecessor L6561, it offers improved performance. The highly linear multiplier includes a special circuit, able to reduce AC input current distortion, that allows wide-range-mains operation with an extremely low THD, even over a large load range.

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