Sanyo CE32LM4R-E, Service Manual

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N4HK
IC Descriptions for UK4B (continued)
IC6600
This is an LA5754 voltage regulator. It provides the 12v supply for the LCD panel.
IC6601
This is a BA33BC0FP voltage regulator. It converts the 5v standby supply to 3.3v.
IC6602
This is a BA09FP-E2 voltage regulator. It converts 13v to 9v.
IC6603
This is a BA12FP-E2 12v voltage regulator. It converts the main 13v supply down to 12v for the fan.
IC6604
This is a LA5754MP voltage regulator. This IC converts the main 13v supply down to 6v. IC801 can switch this IC on
and off via control line “Power 1”. Consequently all supplies developed from this 6v will also be switched (see power
architecture diagram on page 8)
IC6605 / 6 / 7 / 8 / 9 / 10
These are voltage regulators which convert the switched 6v supply down to 5v, 3.3v and 1.8v.
IC6613
This is a TC7SH02 2-INPUT NOR GATE. This IC controls the 5v power to the LCD panel. It is switched via control
lines “Power 4” and “Panel on”.
IC701
This is a THC63LVDM83R LVDS converter IC. This IC converts 3 sets of 8 bit data (R, G & B) into 4 channel and
clock data stream to the LCD panel.
IC8001
This is a HDMI receiver / convertor. HDMI data from K1006 is fed into this IC. The IC then extracts the video and
audio in digital format and sends the data to IC801. Audio data is converted to analogue via IC8501
IC801
This IC is the main control IC for the entire TV.
It incorporates:-
1) CPU for control and on-screen graphics presentation.
2) Video signal processor for controlling picture presentation and quality.
3) LCD scaler for converting different resolutions to the resolution of the LCD.
4) 100 page text decoder.
5) Stereo sound decoder.
6) Multi-system decoder (PAL, NTSC, SECAM etc.)
IC802
This is an 8K x 8 bit EEProm. It is used to store all the calibration data and user settings. When a new IC is fitted,
the CPU (IC801) will detect it and initialise the IC to the default factory settings.
IC8131
This is a 512 x 8 bit EEProm. It is used to store the resolutions that the tv is able to display along with the
manufacturer, date of manufacture and model number. An external device (eg DVD) with HDMI will read this
EEProm to determine which resolution signal to send to the tv.
IC8141
This is an I2C isolation device
IC8501
This is a digital to analogue converter. It is used to convert the HDMI digital audio data to analogue.
IC8502
This is a dual OP-AMP and is used to bufffer the HDMI analogue signal to the audio selector IC (IC1271)