Circuit Description; Ohb Block; Main Block - Sony ILME-FX6V Service Manual

1-3. Circuit Description

1-3-1. OHB Block

CR-1006 board
The CR-1006 board contains a driver IC6502 to control the variable ND filter.
Control signals of the variable ND filter are connected from IC1000 on the VC-1046 board.
Signals from IC6502 are connected to the ND unit to insert or remove the variable liquid crystal ND of
the ND unit and to change the density of the variable liquid crystal ND.
The CR-1006 board contains a six-axis sensor SE3000.
FP-312 board
The FP-312 board contains a photo reflector to detect the variable liquid crystal ND insertion/removal
position.
IS-1043 board
The IS-1043 board contains a full-frame CMOS image sensor.
Power is supplied to this board from the VC-1046 board through the connector.
The CMOS image sensor converts an optical signal to an electrical signal, and its internal A/D converter
converts the electrical signal to a digital signal. Then this digital signal is converted to a differential serial
signal, and then this serial signal is output to the VC-1046 board.

1-3-2. Main Block

CK-1027 board
The CK-1027 board contains a Wi-Fi module.
The Wi-Fi module sends data to and receives data from IC2000 on the VC-1046 board.
Wi-Fi radio waves are emitted from the antenna on the WF-12 board and WF-1008 board.
DD-1020 board
The DD-1020 board contains IC2002, IC2003, IC2004, IC2008, IC2009, IC3001, IC3002, IC3003,
IC3004, IC3005, and IC3006.
IC2002 detects the existence of power and report it to IC0900 on the VC-1046 board.
IC2003 and IC2004 switch power between the AC adaptor and the battery.
IC2008 detects overcurrent in the AC adaptor.
IC2009, IC3001, IC3002, IC3003, IC3004, IC3005, and IC3006 convert voltages and supply converted
voltages to the fan and the main board.
The DD-1020 board also contains a Rear Tally LED.
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