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PDF 22LD4200 Data sheet ( Hoja de datos )

Número de pieza 22LD4200
Descripción TFT LCD TV SERVICE MANUAL
Fabricantes Hitachi 
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No. 0203
22LD4200
SERVICE MANUAL
MANUEL D'ENTRETIEN
WARTUNGSHANDBUCH
CAUTION:
Before servicing this chassis, it is important that the service technician read the “Safety
Precautions” and “Product Safety Notices” in this service manual.
ATTENTION:
Avant d’effectuer l’entretien du châassis, le technicien doit lire les «Précautions de sécurité»
et les «Notices de sécurité du produit» présentés dans le présent manuel.
VORSICHT:
Vor Öffnen des Gehäuses hat der Service-Ingenieur die „Sicherheitshinweise“ und „Hinweise
zur Produktsicherheit“ in diesem Wartungshandbuch zu lesen.
Data contained within this Service
manual is subject to alteration for
improvement.
Les données fournies dans le présent
manuel d’entretien peuvent faire l’objet
de modifications en vue de perfectionner
le produit.
Die in diesem Wartungshandbuch
enthaltenen Spezifikationen können sich
zwecks Verbesserungen ändern.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
Colour Television
December 2003

1 page




22LD4200 pdf
7.6. ROM Characters
• Shadowing
• Contrast Reduction
• Pixel by Pixel Shiftable Cursor With up to 4 Different Colours
• Support of Progressive Scan and 100 Hz.
• 3 X 4Bits RGB-DACs On-Chip
• Free Programmable Pixel Clock from 10 MHz to 32MHz
• Pixel Clock Independent from CPU Clock
• Multinorm H/V-Display Synchronisation in Master or Slave Mode
7.7. Acquisition Features
• Multistandard Digital Data Slicer
• Parallel Multi-norm Slicing (TTX, VPS, WSS, CC, G+)
• Four Different Framing Codes Available
• Data Caption only limited by available Memory
• Programmable VBI-buffer
• Full Channel Data Slicing Supported
• Fully Digital Signal Processing
• Noise Measurement and Controlled Noise Compensation
• Attenuation Measurement and Compensation
• Group Delay Measurement and Compensation
• Exact Decoding of Echo Disturbed Signals
7.8. Ports
• One 8-bit I/O-port with open drain output and optional I 2 C Bus emulation support (Port0)
• Two 8-bit multifunction I/O-ports (Port1, Port3)
• One 4-bit port working as digital or analogue inputs for the ADC (Port2)
• One 2-bit I/O port with secondary function (P4.2, 4.3, 4.7)
• One 4-bit I/O-port with secondary function (P4.0, 4.1, 4.4) (Not available in P-SDIP 52)
8. SERIAL ACCESS CMOS 16K (2048*8) EEPROM ST24C16
The ST24C16 is a 16Kbit electrically erasable programmable memory (EEPROM), organised as 8 blocks
of 256*8 bits. The memory is compatible with the I²C standard, two wire serial interface, which uses a bi-
directional data bus and serial clock. The memory carries a built-in 4 bit, unique device identification code
(1010) corresponding to the I²C bus definition. This is used together with 1 chip enable input (E) so that up
to 2*8K devices may be attached to the I²C bus and selected individually.
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
K3953M is an IF Filter for Video Applications. The package is SIP5K. Supported standards are B/G, D/K, I,
L/L’.
K9656M is an IF Filter for Audio Applications. The package is SIP5K. Supported standards are B/G, D/K, I,
L/L’.
22” TFT TV Service Manual
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22LD4200 arduino
11.7. TEA5114A
11.7.1. General description
This integrated circuit provides RGB switching allowing 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 voltage on 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 logical OR between FB1 (Pin 8) and FB2 (Pin 10).
11.7.2. Features
• 25MHz Bandwidth
• Crosstalk : 55dB
• Short circuit to ground or VCC protected
• Anti saturation gain changing
• Video switching
11.7.3. Pin Connections
22” TFT TV Service Manual
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