Read Sharp LC-40CT2E (serv.man2) Service Manual online
3. TUNER
Samsung DTOS403LH122B tuner is used as the main part of the front-end. A horizontal
mounted and Digital Half-Nim tuner is used which covers 3 Bands(From 48MHz to
862MHz for COFDM, from 45.25MHz to 863.25MHz for CCIR CH). The tuning is available
through the digitally controlled I2C bus (PLL). Below you will find info about the tuner.
mounted and Digital Half-Nim tuner is used which covers 3 Bands(From 48MHz to
862MHz for COFDM, from 45.25MHz to 863.25MHz for CCIR CH). The tuning is available
through the digitally controlled I2C bus (PLL). Below you will find info about the tuner.
3.1. General description of DTOS403LH122B:
The Tuner covers 3 Bands(from 48MHz to 862MHz for COFDM, from 48.25MHz to
863.25MHz for CCIR CH). Band selection and Tuning are performed digitally via the I2C
bus.
863.25MHz for CCIR CH). Band selection and Tuning are performed digitally via the I2C
bus.
3.2. Features of DTOS403LH122B:
Digital Half-NIM tuner for COFDM
Covers 3 Bands(From 48MHz to 862MHz for COFDM, from 48.25MHz to
863.25MHz for CCIR CH)
Including IF AGC with SAW Filter
Bandwidth Switching (7/8 MHz) possible
DC/DC Converter built in for Tuning Voltage
Internal(or External) RF AGC, Antenna Power Optional
3.3. Pinning
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