D-Boss LT-40FLP, Service Manual

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SERVICE MANUAL
PAGE:
21
CIRCUIT DESCRIPTIONS
General Description for 40.0” color TFT LCD TV.
The TFT LCD TV described in the followings is based on a Multi TV system, digital
Control display, 40.0” diagonal. The TFT LCD TV is intended to be a finished product,
Basically a display device mounted inside an enclosure which will provide the safety
Requirements. With the exception of LCD Panel, the display device shall be composed
entirely of solid state components.
These components shall have a history of reliable service in identity applications
and shall be applied in the circuits.
1. SCALER SECTION.
2. MCU SECTION.
3. ADC SECTION.
4. VIDEO PROCESSOR SECTION.
5. FRAME RATE CONVETER SECTION.
6. AUDIO PROCESSOR SECTION.
NOTE:
ROM is two types, To
development early stage it used the EEPROM – AT29C020
The production used the OTP (EPROM – M27X201)
It follows in the ROM and the point which is changed
Apply ROM LOCATION NO PART Insert PART Remove Description
AT29C020 (flash) IC01 L17 L15 600ohm BEAD
M27X201 (OTP) IC01 L15 L17 600ohm DEAD