-6-
N2SL
IC Descriptions for UK1A (continued)
IC6603(digital only)
This is a Sharp PQ1CZ series chopper regulator which provides the 6V supply for the digital module, hence it is only
present on digital sets. The regulator is switched by the POWER 1 control line from the LOC.
IC6604
This is a linear voltage regulator providing in this case 8V to supply the picture improvement IC IC2001. The regula-
tor is switched by the control line POWER 1.
IC6605
This is a chopper regulator, Sharp PQ1CY series, which provides 6V. This voltage is clamped by a diode after the
regulator to produce 5V CPU. This voltage is passed to IC 6606.
IC6606
This is a linear voltage regulator, ROHM BA05SFP, which takes the 6V from IC6605 as an input and produces 5V
SW. This regulator is controlled by the POWER 1 control line from the LOC.
IC6607
This is a linear voltage regulator which takes the 6V from IC6605 and produces 3V3 STB used by the LOC in stand-
by mode.
IC6608
This is a ROHM BA00BC0WFP linear regulator which converts the 6V from IC6605 to the 1V8 use by the LOC
when the set is powered on. This regulator is controlled by the POWER 1 control line.
IC6642
This is also a ROHM linear regulator which takes the 5V SW from IC6606 as an input and produces 3V3 SW used
by various parts of the circuit.
IC701 (20” LCD only)
This is a THine THC63LVDF84B LCD panel interface which converts 4 LVDS data streams from the LOC into 28bits
of RGB data and a clock to send to the panel. Currently this IC is only required on 20” LCD sets where the panel
requires data in RGB form rather than LVDS.
The IC requires a 3V3 power supply on several pins.
IC801
This is the non-volatile memory(NVM) IC which contains data settings for the LOC and stored user data such as pic-
ture settings and programs. It also contains data relating to the LCD panel type and data requirements. It is a 24C64
64K EEPROM arranged as 8192 x 8bits. It uses the 3V3 STB power supply and is connected to the LOC via the
12C bus.
IC860(digital only)
This is a Renesas RSF21162SP microprocessor which acts as a controller for the digital module via the I2C bus and
the D/A_CTL and REC_CTL line to IC1251 and IC1221. This IC has a small amount of memory which contains the
ICs program, this is programmed separately from the LOC program via the KSUB socket.
IC861(digital only)
This is a ROHM BD4828G CMOS voltage detector which controls the reset line to the IC860 microprocessor.
